Welcome to PETEX

LONDON
PREVIEW
DAILYNEWS
PETEX 2014 Conference & Exhibition
CELEBRATING 25 YEARS, 1989 - 2014
OFFICIAL SHOW DAILY PUBLISHER OF PETEX 2014
Welcome to PETEX
Show marks 25 years of technological developments and industry advances.
By oliver quinn, ophir energy
t is with great pleasure that I welcome you all to PETEX
2014, our largest conference and exhibition to date. 2014
Icontinues
to see change and innovation at PETEX, includ-
ing a move east to our new home at the ExCeL conference
venue. The pending redevelopment of Earls Court leaves
a paucity of large exhibition space in central London, and
with the recent growth of PETEX the larger ExCeL site
allows for a comfortable space and even more room to expand. The new venue represents a change in character and
neighborhood but still retains the key facilities characteristic
of a successful PETEX.
The 2014 conference is a significant milestone in PETEX
history, representing 25 years since the first event in 1989.
The event has come a long way from those early beginnings
and is now a key E&P meeting on both the U.K. and international calendar, attracting more than 3,500 attendees in
2012 with a world-class technical program and leading industry exhibitors.This year again sees a wide range of events
anchored around an incredibly strong series of presentations
covering topics as diverse as African exploration and the lat-
est developments in 4-D seismic. 2014 also sees the return
of the popular 3-D Visualization Theater showcasing breaking software and technology developments.
The final day of the conference sees the introduction of
a new event, the PETEX Forum, a question time-style interactive debate centered around the technical aspects and
feasibility of developing U.K. shale gas. While the environmental, social and political issues are paramount in the future story of U.K. unconventionals PETEX provides a great
forum to debate, within the subsurface community, the geological and drilling opportunities and challenges.
As always, the conference provides a packed social agenda
from the cocktail party on Tuesday night, to the pub crawl
Wednesday and the Sundowner event on Thursday. These
events are only possible through the generous support of our
sponsors and exhibitors, so a big thank you goes to them.
Last, but by no means least, I would like to thank the
many volunteers composing the organizing and technical
committees as well as the Petroleum Exploration Society of
Great Britain office staff for their dedication and hard work
in ensuring PETEX 2014 is a fitting legacy for that first
event 25 years ago! n
Knowledge Sweet Spots are
Focus of Technical Program
International theme spotlights developments in emerging plays.
By ricki CHarles, shell
2014 sees me reprise the role of chairman of the
technical committee. I must start by expressing my sinPcereETEX
thanks to the volunteer members of the committee,
without who’s support the program would not be the most
extensive to date. Indeed, in addition to the core technical program on Tuesday and Wednesday, we have the PETEX Forum on Thursday morning, the PETEX seminars
on Thursday afternoon with the 3-D Visualization Theater
and oral poster program across three days. The Wednesday
program will see five parallel technical streams, plus the
Post-graduate Research Collaboration Showcase.
2014 marks a significant milestone for a number of reasons. For the industry as a whole, we have celebrated the
50th anniversary of the first U.K. Seaward License Round.
Even back in those sensational days of the huge discoveries
in the 1970s and 1980s, I am sure few people would have
predicted the basin to still be producing today, let alone
in 2030. Members of the Petroleum Exploration Society
of Great Britain (PESGB) will also be well aware that we
celebrate the 50th anniversary of the society this year, and
PETEX itself reaches its 25th birthday. It’s a real privilege to
be able to contribute in this really important year.
As a team, the committee has aspired to deliver a technical program that would appeal across the PESGB membership.We have designed the program to be current and topical, encompassing a variety of themes ranging from frontier
exploration to the latest developments in existing basins.
Once again this year, the unifying theme is enabling technology, and we hope the program will encourage knowledge-sharing and a cross-fertilization of ideas that will be
beneficial to you and your organizations.
Over the course of recent PETEX events, there has been
a deliberate move to internationalize the technical program,
reflecting the reality that many of our U.K.-based friends
and colleagues are increasingly focused on a globally diverse portfolio of assets and interests. The program this year
continues to develop this international flavor with thematic
sets on emerging plays on both West and East African margins, Newfoundland and Nova Scotia, and underexplored
areas in the Arctic region.
See WELCOME continued on page 8
i n s i de th i s i ss u e
3
Schedule of events
4
PSDM brings profound understanding
6
structural moDeling tools for oil AND gas recovery
9
floor plan and list of exhibitors
10
redefining seismic inversion
11new museum will offer year-round viewing
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A new
PETEX – More Than
Just a Technical Event
A number of social events have been organized
alongside the technical presentations and
exhibition at PETEX 2014.
Contributed by PETEX
P
ETEX is widely regarded as a first-class technical conference and exhibition. Over the years, it
has become a must-attend event for geoscientists
working in the hydrocarbon basins of Europe, the
North Atlantic and Africa, who want to keep abreast
of current exploration thinking and techniques. But
it is more than that. It is also a valuable networking
event where like-minded people gather to discuss
the upstream industry at large and seek solutions for
some of the complex technical issues that affect the
day-to-day working life of the modern explorationist or production geoscientist.
The PETEX organizing committee feels strongly
that PETEX should be seen as a social, as well as
a technical, event. Part of the purpose of PETEX
is to stimulate the cross-fertilization of ideas. The
committee considers that, as a result, the industry
will become better informed and culturally stronger.
There has been a long tradition at PETEX of seeking opportunities for delegates to network.This PETEX is no exception, and it is with that purpose
in mind that a number of social events have been
organized alongside the technical presentations and
exhibition.
On Tuesday evening at the end of the first day of
the conference, the cocktail party is scheduled to
take place. This is a reception with canapés held in
the exhibition hall between 5 p.m. and 7:30 p.m.
following the close of the technical session, while
the exhibition remains open. It is open to all PETEX attendees and provides delegates with the opportunity to tour the booths in convivial surroundings and talk to exhibitors—something they might
not otherwise do if the draw of the technical session during the day is too great to resist. Since many
of the exhibitors are presenting technical papers, a
visit to the exhibition often will give delegates the
chance to discuss content seen during the day with
the authors or to follow up on technology outlined
in the many case studies. As an additional incentive to meet delegates, many exhibitors support the
evening by providing refreshments at their booths.
The Official Show
Daily of PETEX 2014
Visit Hart Energy at booth H2 or
at www.epmag.com
E&P Daily News is edited by the staff of Hart Energy, an information provider for the global energy
industry. Opinions herein do not necessarily reflect
the opinion of the organizer or Hart Energy.
E & P D A I LY N E W S • NOV. 18, 2 0 1 4 • P R E V I E W
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*Mark of Schlumberger. © 2014 Schlumberger. 14-SE-0145
DAILY NEWS
Schedule
of Events
Tuesday, Nov. 18
AUDITORIUM — Keynote Addresses
1616 S.Voss Road, Suite 1000
Houston, Texas 77057, USA
P: +1 713.260.6400 F: +1.713.840.0923
epmag.com
Editorial Director
Peggy Williams
10.00 Executive Director’s Welcome Address – Guy Elliott, Executive Director, PESGB
10.10 Chairman’s Opening Address – Oliver Quinn, PETEX Chair, Ophir Energy Plc
10.20 Sir Ian Wood, Leader of the UKCS Maximizing Recovery Review
10.45 Richard Herbert, Chief Operating Officer, BP Exploration
11.10 Alastair Milne, Vice President Exploration Sub-Saharan Africa, Shell
11.35 Jon Erik Reinhardsen, Chief Executive Officer, PGS
12.00 Oonagh Werngren, Operations Director, Oil and Gas UK
Editor-in-Chief
Mark Thomas
12.25 LUNCH
Executive Editor
Rhonda Duey
Group Managing Editor
Jo Ann Davy
Senior Editor
Scott Weeden
Senior Editor
Jennifer Presley
Executive Editor, Special Projects
Eldon Ball
AUDITORIUM
HALL 1
HALL 2
13.30East Africa rift exploration:
What worked, what didn’t and future
challenges.
I. Cloke (Tullow Oil Plc)
13.30Deriving value with waves:
current and future trends in
the seismic method. J. Etgen (BP Exploration Operating Co. Ltd.)
13.30The U.K. Market: A&D and activity levels: past, present and future.
C. Bulley (Hannon Westwood Ltd.)
14.00The South Lokichar Basin, Turkana,
Northern Kenya toward first oil.
A. Norman (Tullow Oil Plc)
14.00Case studies for a new multimeasurement towed streamer – examples
from around the world. C. Cunnell and
P. Watterson (Schlumberger)
14.00Why continue to carry out
regional prospectivity evaluations of
North Sea plays?
C. Penman (Senergy Ltd.) and D. Mudge
(Ternan Ltd.)
14.30Sequence stratigraphy of offshore
Tanzania.
P. Samson (BG Group)
14.30Complete wavefield imaging:
a North Sea case study. G. Rønholt, Ø.
Korsmo, S. Brown, S. Brandsberg-Dahl,
A. Valenciano, N. Chemingui, D. Whitmore (PGS) and J. Lie (Lundin Norway)
14.30Shallow (post-Paleogene) gas
in the central North Sea – potential resource, indicator of underexplored petroleum systems, or “just” a drilling hazard.
R. Milton-Worssell (DECC), D. Cameron,
M. Sankey and K. Kassyk (BGS)
Associate Managing Editor,
Special Projects
Mary Hogan
Associate Managing Editor, E&P
Bethany Farnsworth
Associate Online Editor
Velda Addison
Associate Editor
Ariana Benavidez
Corporate Art Director
Alexa Sanders
Senior Graphic Designer
Laura Williams
Production Director
Jo Lynne Pool
Reprint and PDF Sales
Eric McIntosh
15.00 REFRESHMENT BREAK
AUDITORIUM
HALL 1
HALL 2
15.30Integration of rock physics and
seismic interpretation – the opening of an
overlooked West African stratigraphic
hydrocarbon play. K. MacAllister and
T. Daley (Bowleven Plc), M. Bacon (Ikon
Science), S. Tamfu and P. Nguema (SNH)
15.30Maximizing asset value at
Forties through continued investment in
seismic.
G. Byerley, P. Rose, L. Singer, J. Pyle and
J. Towart (Apache North Sea)
15.30Subsalt prestack inversion provides new insight into southern North
Sea intra-Carboniferous play.
K. Rodriguez, S. Spoors, R. Yates,
H. Nicholls and N. Hodgson (Spectrum
ASA)
16.00 Harper Basin: hydrocarbon potential in undrilled basin revealed by 3-D
seismic. P. Conn, R. Masotti, J. Halliday,
R. Mansfield, S. Kadir, F. Winter and I.
Deighton (TGS)
16.00Broadband acquisition and
processing for 4-D – a North Sea case
study. E. Hicks, H. Hoeber, G. Poole,
A. Varghese (CGG), B. King and K.
Simonsen (Statoil)
16.00The Breagh Field – gas from
the Lower Carboniferous Yoredale
Formation.
R. Symonds (RWE Dea)
16.30 The Namibian Atlantic Margin
south of the Walvis Ridge: piecing
together the jigsaw of a potentially
prospective new frontier. G. Pritchard
(Serica Energy Plc)
16.30Broadband processing in
the Norwegian Barents Sea – understanding the challenges
and solutions.
A. Hardwick, H. Masoomzadeh
and J. Gromotka (TGS)
16.30Zircon geochronology – improving the understanding of the provenance
of the Upper Carboniferous/Lower Permian sandstones in the southern North
Sea. T. Morgan, T. Pearce, J. Martin, I.
Sevastjanova and A. Finlay (Chemostrat
Ltd.) and F. Cram (Hansa Hydrocarbons)
Vice President of Publishing
Russell Laas
17.00 CLOSE OF CONFERENCE SESSION
SPECIAL SESSION — DATA management in the
next decade.
President and Chief Operating Officer
Kevin Higgins
Chief Executive Officer
Richard A.Eichler
The E&P Daily News is produced for the
PETEX 2014 Conference and Exhibition.
The publication is edited by the staff of Hart
Energy. Opinions expressed herein do not
necessarily reflect the opinions of
Hart Energy or its affiliates.
Copyright 2014 Hart Energy
New to the schedule this year is a special session on data
management, to be held on the afternoon of Tuesday, Nov.
18 in the dining hall. Data management is being seen as
increasingly important as a discipline in its own right, and
the session includes speakers from companies that specialize
in supporting operators as well as nonprofit and government
agencies. Please come and support the PESGB Data Management SIG, which has organized this special session on behalf
of the PESGB and PETEX Committee.
The Keynote presentation “Developing a Professional Data
Management Organization,” will be given by Malcolm Fleming of CDA, the body that enables access to exploration data,
both on- and offshore for the U.K. Malcolm will be presenting
on the current initiatives to professionalize data management
and will set the theme for the afternoon. Trudy Curtis, CEO
of PPDM, will be speaking about business and data rules in
a session titled “Don’t Break Them – Make Them! Rules that
Create Order from Data Chaos” and will be focusing on the
development of standard rules to support the industry.
E &P DAILY NEWS | NOV. 18, 2014 | P R E V I E W
The data management elephant in the room will be discussed
by Ed Evans of NDB, and following a short break, Paul Duller
of Tribal will be presenting a case study on data management disasters. Jill Lewis of Troika will continue the global
theme, describing the creation of a national data repository in
Ghana, and Simon Cushing, director at Venture Information
Management, will round off the session with a discussion on
E&P data management and professional competencies.
The full program is as follows:
14.00 Keynote presentation: Developing a professional
data management organization – M. Fleming, CDA
14.25 Don’t break them – make them! Rules that create
order from data chaos – T. Curtis, PPDM
14.50 The data management elephant (in your room) – E.
Evans, NDB Ltd.
15.45 Data management disasters: San Bruno, the largest
natural gas disaster in U.S. History – P. Duller, Tribal Group Plc
16.10 Creating a national data repository in Ghana – J.
Lewis, Troika International Ltd.
16.35 E&P data management and professional competencies in a changing industry – S. Cushing, Venture Information
Management Ltd.
3
Central North Sea: PSDM Brings
Profound Understanding
A company’s dataset addresses imaging challenges to create new opportunities.
COntributed by CGG
lthough the central North Sea is a mature basin, it is
still rich in opportunities for the development and
A
discovery of new fields, as the area is notoriously chal-
lenging for seismic imaging, especially in the deep, HP/
HT part of the Central Graben. However, the company’s
extensive Cornerstone dataset benefits from a portfolio
of new technology to address these imaging challenges,
creating new opportunities. The entire volume has been
enhanced to capitalize on recent developments in broadband technology, velocity modeling and demultiple techniques. Recent phases of acquisition have used BroadSeis
variable-depth streamers and the BroadSource broadband
source, delivering ghost-free data with more than six octaves of bandwidth.
With four octaves of signal below 40 Hz, BroadSeis provides the best resolution for imaging below the base Cretaceous unconformity. Combining BroadSeis with BroadSource also delivers high frequencies up to the sampling
Nyquist frequency for incredible resolution of shallow
channels and geohazards.
Advanced ghost wavefield
elimination has been applied
to the legacy Cornerstone
data to extend the bandwidth as near as possible
to the new BroadSeis data,
so that they can be merged
to create a contiguous
broadband prestack depthmigrated (PSDM) dataset.
The bandwidth achievable
depends on the signal-tonoise ratio in the recorded
data, so the ultralow frequencies of BroadSeis true
broadband data cannot
be obtained. Nevertheless, considerable improvements have been delivered,
providing a 35,000-sq-km
(13,513-sq-mile)
broadband PSDM dataset.
Comparison of new regional Cornerstone PSDM data with previous locally tailored data is shown.
(Image courtesy of CGG)
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New demultiple techniques, such as model-based water-layer demultiple and internal multiple modeling, have
been applied to this dataset and deliver vast reductions in
the multiple contamination that has historically afflicted
central North Sea datasets.
Large-scale Quaternary channeling in the near surface
strongly influences the imaging of deeper data. Recent
advances in full-waveform inversion and dip-constrained
tomography have enabled highly detailed velocity models
to be built incorporating these channels, resulting in more
accurate imaging of deeper events.
There are also complex structures with strong velocity
contrasts found here, often located at great depths, where
limitations of available data might restrict velocity and
anisotropy modeling. Multilayer tomography (TomoML)
brings stability and accuracy to velocity modeling in such
areas, producing more geologically plausible models and
providing improved imaging results. Applying these techniques to the entire Cornerstone dataset with extensive
well control has produced a regional anisotropic PSDM
dataset with better local detail and definition than previous proprietary datasets tailored to specific local targets.
The new east-west-oriented Cornerstone Phase 8
BroadSeis-BroadSource survey overshoots the existing
conventional long-offset, north-south-oriented data. This
new survey has been combined with the reprocessed earlier data to provide a dual-azimuth volume over the HP/
HT area of the Central Graben, with all the inherent benefits of dual-azimuth data: increased sampling, options to
apply true 3-D processing algorithms for better noise and
multiple attenuation, improved illumination beneath the
base Cretaceous, and optimal imaging of subtle features
such as four-way closures due to more accurate velocity and anisotropy models. The dataset shows significant
improvements in imaging below the base Cretaceous unconformity and might indicate the future path of North
Sea acquisition.
In addition to the best-quality seismic data, CGG also
provides advanced, value-added pore pressure prediction
(PPP) and Facies Finder products over Cornerstone to aid
the understanding of existing and potential new reservoirs.
PPP provides volumetric estimates of pore pressure
across the deep part of the Central Graben to identify
potential drilling hazards and improve well positioning.
CGG combines expertise in high-resolution seismic velocities, petrophysical modeling and well data integration
to deliver a range of seismic pore pressure services. This
is available over about 15,215 sq km (5,874.5 sq miles) of
potential HP/HT data in the Central Graben.
Facies Finder maximizes the value of seismic data early in the E&P cycle to highlight and de-risk potential
prospects. It provides easy-to-interpret prestack attribute
volumes for lithology and fluid identification using a relative elastic inversion requiring no well calibration, so it is
suitable for exploration and screening for amplitude-vs.offset anomalies.
The reprocessed merged Cornerstone dataset delivers an
unprecedented volume of high-quality anisotropic broadband PSDM data over a huge area of the Central Graben
of the central North Sea, including the HP/HT area. This
regional dataset is available now, delivering the local detail
required to assess new license awards, complemented by
Facies Finder over the whole dataset and PPP data over
the HP/HT areas. n
P R E V I E W | NOV. 18, 2014 | E&P DAILY NEWS
10/8/14 10:01 AM
Advanced Seismic Solutions for Reducing
Exploration Costs
Seismic workflow technology can accelerate project turnaround while optimizing decision-making around geological and project constraints.
COntributed by polarcus
is money, and in a fast-moving world the pressure
to make quick and accurate decisions on key exploraTtionime
milestones is greater than ever. Polarcus’ RightFLOW
can seamlessly integrate and accelerate every step of the
seismic data acquisition and processing workflow. This
includes everything from the initial survey design to the
delivery of final data products, with the technology able
to tailor the workflow for any given geologic and geophysical environment. The result will enable users to make
more informed decisions about potential well commitments earlier in the exploration cycle.
This latest Polarcus offering is the result of a data processing collaboration between Polarcus and DownUnder
GeoSolutions (DUG) that has taken a fresh look at the
entire seismic workflow. The partnership combines the
survey design and acquisition expertise at Polarcus with
the processing and imaging expertise at DUG. As a result
of that collaboration Polarcus is deploying DUG’s Insight
software system onboard its fleet of high-end 3-D seismic
vessels.The software system is powered by SGI-engineered
hardware, which will enable the company to offer companies a processing flow designed in conjunction with each
companies’ own experts to address both the specific geological objectives and the critical timelines for the project.
At the core of any offering will be onboard quality-control (QC) flows to ensure that seismic data are recorded
well within the tolerance specifications set by the user.
Key modules have been specified by Polarcus’ own field
geophysicists and designed by DUG software engineers
to ensure that a full suite of quality-control products are
produced in real time on a line-by-line basis and offline
during the course of acquisition to monitor surveywide
seismic data quality and temporal and spatial continuity.
A significant component of the onboard processing flow
real-time software environment is
interactive and intuitive, meaning no
scripts are required for onboard QC
or processing. The offline processing
toolkit has been specifically designed
to allow production of full-fold migrated 3-D volumes, incorporating a
suite of multichannel noise attenuation techniques including shallowwater demultiple, 3-D surface related
multiple elimination, highly interactive velocity picking and quality
control, Voronoi area regularization,
and prestack time migration.
The offering can itself be structured in different ways to suit individual user requirements including
comprehensive onboard acquisition
quality control followed by full onAs the result of a data processing collaboration, DUG’s Insight software system will be deshore processing; ultrafast advanced
ployed onboard Polarcus’ fleet of high-end 3-D seismic vessels. (Image courtesy of Polarcus)
onboard 3-D processing followed by
is the inclusion of DUG Broad, a deghosting technology a more complex onshore processing sequence; or a comthat removes the variable amplitude and phase distortion bined offshore and onshore flow that passes an onboard
caused by the interference of source and receiver side processed intermediate dataset to a DUG onshore processghosts.Variations in receiver depth, source depth, obliquity, ing center for more sophisticated multichannel noise atsea state and signal-to-noise ratio are all taken into ac- tenuation, velocity analysis, regularization, and time and/
count. This results in a broadening of the spectrum as fre- or depth imaging.
Polarcus believes that the “right” processing flow has to
quencies suppressed by destructive interference have their
amplitude (and phase) restored. This means that Polarcus be considered as part of the overall 3-D survey design,
can deliver high-quality broadband data as either prestack acquisition and data delivery effort. The essence of the
gathers and/or as part of the processing flow producing concept is that the right processing flow can be designed
for any given geologic and geophysical environment to
prestack-migrated volumes.
The hardware systems deployed on the Polarcus vessels provide very high-level processed products in as short a
will include up to 172 trillion floating-point operations turnaround time as possible.
Visit Polarcus at booth C14 for more information. n
per second of processing capacity designed to interface
in real time with the seismic data recording system. The
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decision-making, Roxar delivers the confidence and understanding that enables
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E &P DAILY NEWS | NOV. 18, 2014 | P R E V I E W
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05/11/2014 16:26
5
High-resolution Seismic Data in the Barents Sea
High-quality datasets can reveal the secrets of this unique region.
COntributed by TGS
continues to invest substantial sums in its multiclient geoscience data in the Barents Sea, both in terms of
TnewGS
data acquisition and also reprocessing of existing data.
TGS has acquired more than 177,000 km (109,983 miles)
of its Norway Barents Sea Renaissance (NBR) 2-D data
and also in excess of 28,000 sq km (10,811 sq miles) of its
Hoop Fault (HF) Complex and Finnmark Platform 3-D
surveys. Since the discovery of relatively shallow oil in the
Wisting well (7324/8-1) by OMV and partners last year,
the demand for high-resolution data has grown.
Recent reprocessing
Broadband processing of conventionally acquired seismic
data has become commonplace over the last few years, and
TGS has taken the opportunity to use its Clari-Fi technology to improve the resolution of its data. In addition,
a short offset, high-resolution volume, with sampling at 2
ms and a bin size of 6.25 m (20.5 ft) also was produced.
Conventional Hoop Data
High-Resolution Hoop Data
Source
2 x 3000 – 5000 in3 array
2 x 3000 – 5000 in3 array
Shot interval
37.5m
37.5m
Shot depth
7m
7m
No. of streamers
12
12
Streamer length
6000m, 480 x 12.5m
2000m, 160 x 12.5m
Streamer separation
100m
100m
Streamer depth
9m
9m
Processing grid
12.5 x 18.75m
6.25 x 6.25m
Tmax / Sample rate
7s / 4ms
2s / 2ms
CMP fold
80
27
New data acquisition
As well as continuing to expand the NBR and HF volumes, TGS, in association with Westland GeoProjects, acquired 575 sq km (222 sq miles) of P-Cable data in and
around the HF area. The dataset was a mixture of six small
3-D surveys ranging in size from 18 sq km to 185 sq km
(7 sq miles to 71 sq miles), plus three 2-D swaths that
wandered between areas of potential interest.
The data received from the field crew were in SEG-Y
format where the trace coordinates and offsets had been
calculated and put in the headers. The coordinates were
calculated by using the GPS positions of the buoys and the
shape of the cross cable (assumed to be a catenary). The
processing of the P-Cable data went through a fairly conventional Clari-Fi route consisting of resample to 1 ms,
debubble from a data-derived source wavelet, swell noise
attenuation, deghosting, 4-D anti-leakage regularization,
FXY deconvolution on offset planes, 3-D sort, zero phasing, normal moveout using a velocity field from the underlying conventional seismic data, stack, 3-D post-stack
Kirchhoff migration using a velocity field from the under-
P-Cable data
P-Cable is ultrahigh resolution, low-fold seismic data that
are acquired by using innovative field equipment.
The main difference from conventional acquisition comes
from the use of a
cross cable from
which the short
mini-streamers are
hung. The resulting data had a 2-sec
record length with
0.5-ms
sampling.
The shot interval
was 12.5 m (41 ft),
and the data were
recorded on 16 mini-streamers each
with eight groups
at 3.125-m (10-ft)
spacing. The ministreamer separation
of 9.5 m (31 ft) was
maintained by the Figure 2: Original processing of conventional 3-D data (left), high-resolution reprocessing of conventional 3-D data
paravanes
keeping (center), and ultrahigh resolution P-Cable (right) are shown. (Images courtesy of TGS)
the cross cable under
lying data, inverse Q compensation (amplitude only) and
tension.
post-migration cosmetics.
Processing
P-Cable Hoop Data
The main aim of the processing was to Data Examples
1 x 300 in3 array
produce high-resolution data (not just Figure 2 (above) shows the original processing on the HF
high-frequency data) by correctly recov- Complex 3-D survey, the 2 ms high-resolution Clari-Fi
12.5m
ering the frequencies around the ghost reprocessing and the ultrahigh resolution P-Cable Clari2m
notches. With the source and receiver Fi processing.
16
depths being of the order of 2 m to 3 Clari-Fi significantly improves the bandwidth at the low
m (7 ft to 10 ft), the ghost notches pro- end of the spectrum on the P-Cable data where the ghosts
25m, 8 x 3.125m
duced were about 250 Hz and 375 Hz from the shallow source and receivers are particularly
9.5m
toward the upper end of the expected us- prominent. The Barents Sea contains unique geophysical
3m
able spectrum. The bigger concern was challenges. Through the use of acquisition and processing
to recover the data at the 0-Hz notch techniques, TGS continues to deliver high-quality datasets
6.25 x 4.75m
since the shallow source and receiver that reveal the secrets of this unique region.
1.2s / 1ms
For further information please visit TGS at booth E15 or
depths created ghosts that caused a rapid
4 x 16
at tgs.com. n
roll-off of frequencies at the low end.
Structural Modeling Tools for Oil and Gas Recovery
New tools are part of an integrated seismic-to-simulation workflow that supports informed decision-making.
CONTRIBUTED BY EMERSON PROCESS MANAGEMENT
year on from the successful launch of Roxar RMS
2013, Emerson Process Management will be showA
casing its new structural modeling tools for exploring
fault and horizon uncertainty at this year’s PETEX.
The new tools are part of an integrated seismic-tosimulation workflow that helps operators make informed
decisions across the prospect life cycle and maximize oil
and gas recovery from their assets.
Whereas traditionally, reservoir modelers have relied on
best-case estimates of faults and horizons with an inherent
uncertainty in their interpretations, the tightly integrated
structural modeling workflow within Roxar RMS will
enable users to quantify uncertainty more effectively and
increase decision-making confidence.
As part of the new developments, Roxar RMS’s fault
uncertainty features have been tightly integrated with
structural modeling and 3-D gridding tools to enable users to build fault uncertainty models in full and investigate
a wide variety of scenarios related to the uncertainty in
the input data.
Horizon uncertainty modeling also will be significantly
enhanced, allowing users to incorporate realistic uncertainties into the horizon model by specifying uncertainties in the form of standard deviations for all input data
used. These include isochore thicknesses, seismic inter-
6
pretations in time with corresponding interval velocities, depth maps,
and well data in the form of both
well picks and zone log information.
The result will be realistic structural
scenarios and improved volumetric
sensitivity studies.
A new version of Roxar RMS will
be available soon with improved usability, performance and efficiency
features that form part of an integrated modeling workflow. This includes RMS Data Explorer, a new
data browser for locating and organizing data objects; the introduction
of multithreading (the ability for
computing to take place in parallel)
to accelerate model building; and a
new adjust-to-wells feature that calculates residuals between the grid
and well picks and, if required, adjusts the grid to match the well picks.
For further information or a dem- Model-Driven Interpretation enables users to not only create the geological model while
onstration of Roxar RMS 2013, conducting seismic interpretation but also to capture uncertainty while interpreting. (Image
please visit Emerson Process Man- courtesy of Emerson Process Management)
agement at booth F7. n
P R E V I E W | NOV. 18, 2014 | E&P DAILY NEWS
Are you ready
for true fast track?
We are.
With our new RightFLOW™ geophysical offering, powered by
DUG Insight™, we can deliver superior imaging faster than ever,
cutting exploration time and reducing drilling costs.
Come visit us at booth C14 and we will tell you all about it.
Imaging tomorrow’s energy™
Onshore UK’s Potential Gaining Interest
Onshore U.K. activity has the potential to grow significantly, but there are many short-term challenges.
Contributed by hannon westwood
ith the closure of the 14th U.K. onshore licensing
round on Oct. 28 this seems an appropriate time
W
to assess the interest in U.K. oil and gas.
At Hannon Westwood, the company takes an active interest in exploration both offshore and onshore the U.K.
Until recently, onshore U.K. has been overshadowed by
E&P in the offshore, particularly the North Sea. This is
likely to change, however, as operations in the North Sea
become more difficult. Increasing numbers of prospectors are searching for oil in southern England as well as
in Yorkshire and the East Midlands.
Although recently in decline, the company’s prediction
is that there will be a long-term increase in oil prices, and
with continued political instability in the Middle East,
alternative areas are becoming more attractive. Although
most of England is not suitable for exploration, oil has
been pumped from beneath Kimmeridge Bay since the
1960s and from the Wytch Farm oil field since 1979. It
is believed that there is exploration potential in adjacent
areas including the Isle of Wight. Hannon Westwood has
been able to provide advice to operators on aspects of
the exploration potential on the Isle of Wight as well as
2015
20 & 21 MAY
UNDERPINNING THE FUTURE –
DISCOVERY, DEVELOPMENT, RECOVERY
commentary on data exploration to date and strategies to
progress exploration efforts.
In addition, the company has produced a report on the
potential of the onshore U.K., which alongside Highland
Geology’s new report on the seismic interpretation and
mapping of the prospectivity of the Isle of Wight and
the Novas Consulting report on unconventional potential onshore U.K., provides a comprehensive review of all
aspects of the prospectivity and potential for access for
the onshore U.K.
Chris Bulley, executive director of Hannon Westwood,
who will be speaking about the U.K. market on day one
at PETEX 2014, considers that, following the announcement of the 14th round, onshore activity has the potential to grow significantly. However, there are many shortterm issues to overcome with a real need for positive
education on the benefits and environmental impact of
onshore E&P.
Bulley’s talk, “The U.K. Market A&D and Activity
Levels—Past, Present and Future,” will be dealing with
past, present and future activity levels offshore the U.K.,
where recent declines in exploration drilling activity have
been causing concern. Hannon Westwood considers that
there is certainly still potential on the U.K. Continental
Shelf (UKCS), although there are considerable challenges
in unlocking resources in this area. Exploration activity is currently at an all-time low with only 14 exploration wells spudded last year, and many of the prospects
are very small. The average prospect size in the Hannon
Westwood UKCS inventory is just 10 MMboe, and the
age of the current infrastructure makes the development
of exploration successes problematic in many cases.
Charles Westwood, executive chairman of Hannon
Westwood, considers that to make further North Sea exploration viable, there is an urgent need to increase exploration activity. This, in turn, needs to be supported by
substantial and targeted tax incentives. It appears that the
U.K. government has grasped the urgency of this, and
Hannon Westwood hopes that the new regulatory body
they have set up will be effective in simplifying and fasttracking applications for seismic and drilling activity. n
WELCOME continued from page 1
SP
O
PA NSO
AV CKA RSH
AIL GE IP
AB S
LE!
20 & 21 MAY 2015
ABERDEEN EXHIBITION & CONFERENCE CENTRE
CALL FOR ABSTRACTS NOW OPEN!
The DEVEX conference showcases subsurface and well technologies,
case studies and best practices for oil and gas industry professionals.
Abstracts are invited in the following themes:
Beyond the North Sea
Formation Evaluation Challenges
•
Case studies and lessons from around the world
•
Challenges of depleted drilling
•
Unconventional resources
•
Pore pressure and frac gradient prediction
•
Gas storage
•
Cement integrity
Old Dog New Tricks
New Kids on the Block
•
How have old fields been reinvigorated?
•
New fields
•
The latest industry and academic research and
•
New companies
development
•
New ideas
•
Maximising well productivity
•
New technology helping to unlock developments
•
EOR
•
HPHT challenges and solutions
•
Near field exploration and appraisal
•
Shortening the timeline
For further details on abstract submission and information on other aspects
of the event including sponsorship and exhibition opportunities please visit:
www.devex-conference.org
8
PETEX Show Dialy Adverts.indd 2
Image courtesy of © Sasol
SUBMISSION DEADLINE
22 JANUARY 2015
In acknowledgment to the continued delivery and
some renewed interest in the U.K. Continental Shelf
(UKCS), we have a rich program of talks that address
some new play concepts, field developments and new
insights into mature plays. A particular highlight will be
hearing how companies are overcoming the challenges
of developing the large offshore heavy oil fields.
The PETEX Forum will explore the technical feasibility of shale gas extraction in the U.K. through an interactive panel debate session featuring representatives
from both optimistic and pessimistic viewpoints. The
debate will be fully interactive, and delegates are encouraged to submit questions to the panel. The forum
will be preceded by a special thematic set to provide
grounding to delegates in advance of the panel debate. I
extend my thanks to Hamish Wilson (SLR Consulting)
for once again organizing the PETEX Forum.
We are heading into choppy waters in our industry,
with oil prices recently sinking to around $80/bbl and
costs remaining stubbornly high. The cost challenge is
one that all sectors of the industry face, and technology is one area we consistently look toward to help
us de-risk prospects and reduce development costs. We
shouldn’t underestimate the cutting-edge technology
that has been developed by innovators in our industry,
working in oil company research centers and in the service sector, where the drive to improve software, equipment, tools, and expertise is unrelenting. This is why
PETEX continues to focus on showcasing the latest
technologies to help explorers capture uncertainty and
find hydrocarbons in the most cost-effective manner.
Mike Branston (Schlumberger) and Tim Sears (BP)
have assembled an excellent program highlighting the
very latest in seismic technology, with real-world examples from across the life cycle including acquisition,
processing, modeling, inversion and time-lapse seismic.
The 3-D Visualization Theater makes a return to the
exhibition floor this year, made possible by the additional space available through our move to ExCeL. The
theater also has a dedicated program of 3-D immersive
presentations from various vendors who will use technical case study examples to demonstrate their toolkit
capabilities. Thanks are extended to Schlumberger and
Barco, who have donated their own staff and equipment
to bring this attraction to us.
We had many excellent submissions following our
call for papers earlier this year, and many were an excellent fit to the themes and topics requested. We had
so many in fact, that we could not accommodate all of
them in the core oral program. This means we have an
exceptionally strong poster content this year that has
a dedicated presentation program running in parallel
with the core program.
And finally, for the first time this year PETEX will
be making awards for Best Presentation from the core
technical program (three categories of International
Exploration, Enabling Technology and UKCS) and Best
Poster. The awards will be presented by Professor Iain
Stewart at the end of the PETEX Forum at 12:15 on
Thursday, Nov. 20–we hope you will attend!
I do hope you will enjoy everything the show has to
offer–and don’t forget that by participating, you are also
helping the PESGB to nurture our geoscientists of the
future, as a large proportion of the proceeds of the event
fund the MSc student bursaries. n
P R E V I E W | NOV. 18, 2014 | E&P DAILY NEWS
07/11/2014 09:47:22
Exhibition floor plan and list of exhibitors
Company Name
Booth number
Advanced Logic TechnologyE6
4 Gen Energy UKF5
AAPG DatapagesE7
AAPG EuropeE1
Acceleware A12
Allan Webb A30
ALS Petrophysics
A10
Amplified Geochemical Imaging
G5
APT (UK)C32
Aramco overseas company UK
A29
ARK CLS G9
ARKeX G10
Astrium G6
Bell Geospace C4
BG Group
Grad Career Fair
Blueback Reservoir F15
Bridgeporth E37
C&C Reservoirs
H3
CGG
Grad Career Fair
CGGB1
Chemostrat A9
DataCo B42
DeloitteC25
Department of Earth Sciences, Royal Holloway
UF - J
dGB Earth Sciences A4
Directorate General of Oil And Gas Indonesia
IP - M
Dolphin GeophysicalE20
Down 2 EarthF3
DownUnder GeoSolutions
G13
DPTS B15
Durham University
B25
EAGE C8
Earthworks Reservoir
B10
EliisC3
EMGSG2
EnergisticsH1
Envoi B40
EPI Group
A24
ERCL/SAER A52
Company Name
Booth number
ETAP
IP - H
Etches CollectionD3
Exploration Electronics A27
Exprodat Consulting A40
FairfieldNodal
A50
Faro Technologies UK G1
Faroese Earth and Energy Directorate
IP - P
ffAD4
Fluid Inclusion Technologies
A47
Followave G8
Frogtech Pty F1
FugroC12
Gardline Marine Sciences A46
GEO ExPro (GeoPublishing)
C5
GeoGuide Consultants D5
GeokineticsD7
Geological Society of LondonC6
Geologix C13
Geoscience C30
Geotrace Technologies C20
GetechD41
Global Exploration Services C33
Halliburton Energy Services
C1
Hart EnergyH2
Heriot-Watt University, Institute of Petroleum Eng. UF - F
HRH Geology
F16
HW Atlas C7
HydenlyneA2
IHS Global G12
Ikon Science F10
Imperial College London
UF - G
INP
IP - C
Interica G4
Intrepid Geophysics
A6
ION Geophysical Corporation
B30
Ireland, Department of Natural Resources
IP - J
Isle of Man Government
IP - E
Isle of Man GovernmentH11
Journal of Petroleum Geology
A13
Company Name
Booth number
JSC “SEVMORNEFTEGEOFIZIKA”
C27
Kestrel IDM B41
La Tene MapsE31
LMKR Holdings [Dubai Branch]
H4
LR Senergy
E36
Lynx Information Systems
B24
Maritime zone Solutions A11
Media 7 Publishing
A15
Merlin Energy Resources G7
Ministry of Environment, Energy & Climate Change IP - F
MultiClient Geophysical D40
Natural Environment Research Council
A16
NautilusC10
NDB (New Digital Business)
A1
Neftex G20
NeuralogA42
Newfoundland & Labrador (Canada)
IP - G
Nexen Petroleum UKF6
Nova Scotia Dept. of Energy
IP - A
Novas Oil & Gas ConsultingC34
Oil & Gas UKE34
Oilfield Technology
A14
ONHYM
IP - K
Ophir Energy
Grad Career Fair
PanTerra GeoconsultantsE6
Paradigm GeophysicalC11
Perigon Solutions A7
PESGBG30
PESGB Young Prefessionals
Grad Career Fair
Petroleum Geo ServicesC21
PetroskillsE33
PetroStrat C35
Petrosys Europe B16
PolarcusC14
PPDM Association
A8
Richmond Energy Partners
A5
Roxar Software Solutions F7
RPS C10
ScanSeis Consulting CompanyC31
E &P DAILY NEWS | NOV. 18, 2014 | P R E V I E W
Company Name
Booth number
Schlumberger
E14
Seabed Geolsolutions
A26
Seismic Image Processing D2
Sharp reflections
C2
Shell UK Grad Career Fair
SLR Consulting
E4
Spec Partners C36
Spectra-Map E32
SpectrumF20
Target Oilfield Services B2
Task Fronterra Geoscience
A22
TEECE12
Teradata UK A3
TerrasciencesA41
Terrex Group
A20
TESLA Exploration International G3
TGSE15
The Geotech GroupD1
TNOA51
Tribal
B26
Troika International C9
University of Aberdeen ExploHUB
A21
University of Derby
UF - B
University of Edinburgh
UF - D
University of LeedsC31
University of Leeds
UF - K
University of Leicester
UF - M
University of Manchester
UF - A
University of Southampton
UF - L
University of St Andrews
UF - C
Upstream Oil & Gas Newspaper
A32
Vision Project Services
E2
WeatherfordF2
Western Australia
IP - B
WGP Exploration E10
Working SmartD6
X-Ray Mineral Services E35
Zebra Data Sciences C29
9
Redefining Seismic Inversion
Inversion system captures the physics of the seismic inverse problem, leading
to better impedance estimates.
By Dr. Michel Kemper, Ikon Science
is not suited to the simulation of
facies; and can take weeks, if not
eismic inversion aims at extracting rock properties (such months, to set up and run.
Ji-Fi, a joint impedance and faas porosity, saturation and Vshale) from seismic data. Seismic, however, responds to changes in impedance at the in- cies inversion system, performs the
terface of two formations, so the seismic inversion challenge inversion for both facies and impedbreaks into two steps (even though it is sometimes “hidden” ances per facies. The system, therein one application): obtaining from seismic the impedance fore, fully captures the physics of the
of each interval (known as seismic inversion); and deriving seismic inverse problem. Compared
rock properties from these impedances (known as reservoir to today’s technology, this leads to:
• Better impedance estimates;
characterization).
Step 2 relies on per facies rock physics modeling, i.e., the • A more consistent facies model of
facies being an elastic-seismic facies such as shale, water- great help to geomodelers (as compared to facies models obtained us- Figure 1: Net sand determined from facies models from an oil and gas field offshore Westsand or gas-sand.
Even though in Step 2 it is common practice to derive ing Bayesian classification, see Fig- ern Australia is shown. On the left, the facies model is obtained by Bayesian classification on
simultaneous inversion-derived impedances. On the right, the facies model is Ji-Fi derived. In
rock properties per facies, seismic inversion algorithms ure 1); and
addition to the Ji-Fi results matching the five wells, Ikon observed that the Ji-Fi derived channel
overwhelmingly invert for impedances only, i.e., not per fa- • Improved reservoir properties, as is nicely continuous and that Ji-Fi predicts water-bearing sands off structure (where it would be
cies, even though seismic modeling conclusively shows that steps one and two are now both expected). (Image courtesy of Ikon Science)
facies transitions form a primary control on the impedance facies-based.
Ji-Fi is a Bayesian inversion syschanges that in turn control the seismic response. The exception is certain laborious geostatistical algorithms that do tem, supporting the control of lateral facies continuity and can be operated within reasonable time constraints.
The Ji-Fi method is the culmination of four years of reinvert to facies and impedances per facies. However, these inhibiting facies transitions that are not geologically or hysearch
in partnership with the Australian organization, the
have certain shortcomings: They require a relatively dense drologically plausible (e.g., water-sand on top of gas-sand).
Commonwealth
Scientific and Industrial Research OrganiIt
works
equally
well
with
sparse
or
dense
well
control
and
amount of well control; typically use variography, which
sation and funding from Tullow Oil.
The system has operated on a number of hydrocarbon assets, and the results are impressive (Figure 1). In some cases,
where no well control was available within the area of the
seismic survey, per facies trend information derived from
nearby wells or even per facies analogue trends were used to
initiate the process and had surprisingly good results.
Ji-Fi will be commercially available on December 1,
2014. For a demonstration or to pick up the recent article
by Dr. Michel Kemper and Dr. James Gunning that was
published in First Break in September 2014, visit Ikon SciThe PESGB and PETEX Ltd would like to thank the following companies for their support of PETEX 2014.
ence at booth F10. n
S
Report Offers Route
Map for Applying
Geoscience Technologies
CATALYST
JX Nippon Exploration and
Production (U.K.) Limited
FAROESE EARTH AND ENERGY DIRECTORATE
LYNX
Information Systems
10
SLR Consulting has published a review of specialist
geoscience technologies to provide exploration teams
with greater understanding of the geophysical techniques that can be used to characterize the subsurface,
according to a company press release. The integration
of these nonconventional technologies with traditional
reflection seismic methods can reduce exploration risk.
The objective of the study, titled “A Review of Specialist Geoscience Technologies for the Global Oil & Gas
Industry,” is to provide an evidence-based route map of
how to apply geoscience technologies—so is a valuable
technology selection guide for explorers.
With contributions from seven leading experts including, ocean-bottom expert Dr. Ian Jack and crustal seismology studies expert Professor Jannis Makris, the report
reviews the suitability and applicability of specialist geosciences technologies in a range of geological settings,
the release said.
The technologies reviewed in the report are:
• Crustal studies (refraction seismic);
• Gravity and magnetics;
• Full-tensor gradiometry;
• Marine electromagnatism (CSEM and MT);
• Ocean-bottom nodes; and
• Microseismic and induced seismicity.
SLR’s technical director, oil and gas, Hamish Wilson,
who along with Dr. Matt Luhesi and Dr. Keith Nunn
edited the report, said, “There is no ‘holy grail’ detection technique that will prove the presence or absence of
hydrocarbons before drilling. However, we believe that
these technologies, if used in the right geological conditions and in combination with other techniques, could
greatly add value to an exploration review.
“An improved ability to remove ambiguity in subsurface systems is a real game-changer with applications
from exploration through to development and production, off- and onshore.”
The report is available for sale through SLR. For a
copy, contact Hamish Wilson at hwilson@slrconsulting.com
or visit SLR at booth E4. n
P R E V I E W | NOV. 18, 2014 | E&P DAILY NEWS
New Museum Will Offer Year-round Viewing
of More than 2,000 Fossils
Fossil collection will be featured in the PETEX exhibition hall at booth D3.
Contributed by the etches collection
a not-to-be-missed opportunity at the upcoming PETEX 2014. It’s the chance to meet and share
Tthehere’s
stories of Steve Etches, the hugely engaging and
knowledgeable collector of Kimmeridgian fossils (more
than 2,000 incredible examples—many of which are a
scientific first). He will be talking about his amazing collection, bringing to life these unique examples, their significance and their place in the Kimmeridgian story. It’s
an opportunity that no petroleum geologist should miss.
Details about a new museum that has been purpose designed to house this amazing collection also will be discussed.
The Etches Collection, as the new museum will be
called, will offer year-round viewing of this important
collection and will serve as a resource from which Etches
can continue his incredible work. Based in the village of
Kimmeridge and close to the important Kimmeridgian
oil shales, it will be a must for those planning educational
field trips or who would like to hold an event, seminar
or meeting in a most inspiring and unusual venue. The
museum will open in early 2016.
Etches will be talking about his collection and the museum on Tuesday, Nov. 18, in the theater space at PETEX. The Etches Collection also will be featured in the
PETEX exhibition hall at booth D3, close to the theater.
Presentation in the theater
The presentation is scheduled to take place at 13:30 and
15:30 on Tuesday, Nov. 18, and will be given by Etches,
in company with Professor Simon Conway Morris FRS
from the Department of Earth Sciences at Cambridge
University and Dr. David Martill from the School of
Earth and Environmental Sciences at the University of
Portsmouth.
Lively talks will explore the extraordinary collection
and discuss its value to science and the oil industry. There
also will be a glimpse of the exciting plans to create a
new, independent museum to house the Etches Collection, making it publicly available for the first time.
Questions and discussion will be encouraged during
the informal talk session.
Meet the team
Delegates will have the opportunity to meet Etches and
members of the Kimmeridge Trust. The team will be
on hand throughout the conference to talk and answer
questions about the Etches Collection and the new museum at booth D3.
See a cast of a superb, fully articulated ichthyosaur, possibly the finest ever from the Kimmeridgian Clay Formation. This is a cast of a specimen from the collection.
Explore the website and online database of the collec-
New Features Make Exhibition Best Yet
Complementing the technical conference, the PETEX
2014 exhibition space will feature industry operators,
service companies, consultancies, international oil ministries, universities and professional organizations. The
opportunity remains to host a booth in the exhibition,
alongside other leading companies, with most returning to exhibit year after year. Benefits include:
• Connecting with more than 3,000 subsurface and
upstream professionals;
• Showcasing your latest projects and technologies
with potential clients and partners; and
• Significantly raising your profile across the industry.
Find out why 87% of PETEX exhibitors return year
after year. Visit the organization’s YouTube channel today and hear about one exhibitor’s “Ten Million Dollar
Day” at PETEX 2012.
International Pavilion
The PETEX International Pavilion provides a place for
governments and their agencies to showcase the areas
they have available for exploration, and this year the area
is larger than ever, with more regulators keen to encourage explorers from the U.K. and Europe. New participants join many regulars, with representation from
Greenland in the north to Mozambique in the south.
Europe, Africa, Asia and the Americas are all represented with a large variety of exploration areas on offer or
open to discussion, both offshore and onshore.There are
those with well-established fields but also newer players
to the oil and gas scene so it should provide something
of interest for everyone. Countries represented this year
are Faroe Islands, Greece, Greenland, Indonesia, Ireland,
Isle of Man, Morocco, Mozambique, Newfoundland
and Labrador, Nova Scotia and Tunisia. The International Pavilion is in the corner of the main exhibition
hall and includes plenty of seating for discussions as well
as a private meeting room and is well worth a visit.
University Forum
This dedicated area will provide the U.K.’s leading geoscience universities with an arena to forge and develop
links with the industry, promote their courses to potential post-graduates and promote their research.
Scene from the 2012 PETEX Conference and Exhibition in Earl’s
Court, London. (Image courtesy of PETEX)
Graduate Career Fair
The Petroleum Exploration Society of Great Britain
Graduate Career Fair will provide companies with a
designated area for recruitment right on the PETEX
exhibition floor. This 252-sq-m (2,713 sq ft) purposebuilt space contains mini-booths for each company, a
networking area for graduates to meet with the companies and six interview rooms on site. Companies also
will have the opportunity to speak directly with students at the student lunch on Thursday.
3-D Visualization Theater
PETEX 2014 provides an opportunity to showcase the
latest visualization case studies supporting E&P solutions in a purpose-built 3-D Visualization Theater on
the main floor of the exhibition. The theater is open
to all delegates and will showcase offerings from universities, service companies, oil companies and exhibitors, all of which have the opportunity to present current hardware and software technology, outlining how
3-D visualization in the oil industry is likely to develop
going forward. Delegates will have the opportunity to
view everything from deepwater sediment to continental earth scale modeling, from Eocene cliff sections in
the Faroe Islands subsurface to Central America, and
achieve an understanding of how the evolution of digital cinema technology has changed the way in which
we visualize the subsurface. PETEX would like to thank
Schlumberger and Barco for their sponsorship of this
exciting opportunity for delegates to immerse themselves in a 3-D world. n
E &P DAILY NEWS | NOV. 18, 2014 | P R E V I E W
A beautifully preserved and curated new species of undescribed
Ichthyosaur shows a large orbit eye and very fine delicate teeth
indicating it fed on squid. (Image courtesy of The Etches Collection)
tion, which have been developed with funds from the
Petroleum Exploration Society of Great Britain. Using
the database, delegates can see many more of the specimens in the collection through the detailed images and
information.
See design images of the new museum building, including the facilities that will be available for use by
companies and organized groups. Enjoy a virtual walk
through the building through the design animation. n
EM at the Center of the
Exploration Workflow
It’s been a busy few months for Norwegian geophysical
services company EMGS as it comes to PETEX this
year on the back of a number of recent contracts and
positive results from its 3-D controlled source electromagnetic (CSEM) surveys.
With 3-D CSEM surveys mapping resistive bodies
in the subsurface, the integrated interpretation of EM
anomalies into the exploration workflow is providing
operators with a clear correlation between the response
of the EM measurements and the fluid content of the
reservoir as well as acting as a key complement to seismic.
CSEM surveys and subsurface resistivity are being
used to improve play and prospect evaluation and well
positioning, to optimize portfolios, to define appraisal
programs and characterize gas hydrates (either as drilling
hazards or for commercial exploitation) and for structural imaging in salt and basalt environments.
Furthermore, the growing popularity of CSEM has
been reflected in a number of recent contracts awarded
to EMGS including 3-D EM data acquisition surveys
offshore Malaysia and offshore Brazil and the provision
of 3-D EM data from EMGS’s multiclient data library
for operators involved in exploration in the Barents Sea.
In terms of completed surveys, EMGS has been playing a key role in the harsh and sensitive environment of
the Barents Sea, influencing lease sale decisions and reducing the occurrence of expensive dry holes and noncommercial discoveries.
In an area of complex geology and where seismic data
alone can struggle, multiclient EM data has improved the
success rate of subscribing operators and has led to a new
play type in the Hoop area as evidenced by the Wisting
discovery. Furthermore, in the case of the Skrugard and
Havis discoveries (now the Johan Castberg Field), two
adjacent dry wells could have been avoided with the results correctly predicted by the EM data.
On the other side of the Atlantic, EMGS also has
played an important role in the Mexican Gulf of Mexico
where an extensive 3-D EM program has lowered exploration costs and increased discovery rates for Mexican
operator PEMEX.
In one case involving PEMEX, CSEM is complementing seismic as part of a 3-D CSEM inversion survey. Here, imaging results have demonstrated that the
incorporation of resistivity data into the seismic velocity
model building workflow has significantly enhanced the
resolution of seismic sub-salt imaging. In such cases, a
5% to 10% improvement in the imaging of the structure
post-migration can have a huge impact on future drilling
and appraisal decisions and accompanying costs. n
11
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