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IPTC 2008: International Petroleum Technology Conference
- Conference date: 03 Dec 2008 - 05 Dec 2008
- Location: Kuala Lumpur, Malaysia
- Published: 03 December 2008
101 - 150 of 303 results
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Integrated Reservoir Modeling to Enable Development of a Complex Turbidite Deepwater Discovery
Authors J.Y.S. Yeo and G. StoneThis paper presents a case study of the approach and methods applied in static and dynamic modeling of a complex deepwater
turbidite oil discovery (Field A) located off the coast of Borneo. Field A was discovered in 2004 in water depths of 1500 to
2000 ft. Field A is operated by Shell with co-venturers ConocoPhillips (CoP) and PETRONAS Carigali Sdn Bhd (PCSB).
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Paleozoic Limestone of the Kinta Valley: Paleogeography and Implications to the Regional and Petroleum Geology of Peninsular Malaysia
Authors A.A. Kadir, B.J. Pierson, Z.Z.T. Harith, C.W. Sum and U. TeknologiA number of isolated limestone hills, distributed over a 1,200 km2 area in the Kinta Valley, display a striking tower-like
morphology. The limestone hills are the remnants of thick Paleozoic limestone deposits, mainly Carboniferous to Permian in
age, that have been severely eroded and karstified. Layers of shale and siltstone, several hundreds of meters thick, are
interbedded with or underlie the limestone. The hills overlie extensive younger granite bodies, which have affected the
limestone through contact metamorphism.
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Real-Time Estimation of Total Flow Rate and Flow Profiling in DTS-Instrumented Wells
Authors C.S. Kabir, B. Izgec, A.R. Hasan, U. Minnesota-Duluth, X. Wang and J. LeeDistributed temperature sensing or DTS is gaining increasing popularity because of its potential to generate flow profiles
over completed intervals. In fact, several studies have reported successful reproduction of field data, obtained with
conventional production logs, in both vertical and deviated wells. One input that enters into typical DTS calculations is the
total flow rate at surface. In absence of dedicated flowmetering, uncertainty normally creeps into assigned well rates.
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Concurrent Oil & Gas Development Wells: A Smart Well Solution to Thin Oil Rim Presence in Gas Reservoirs
Authors S. van Putten and M. NausFor a number of gas supply projects feeding LNG export schemes, there exists a challenge that key gas reservoirs have
associated underlying oil rims. Without due consideration to these oil rims regulator approvals to move ahead with the gas
projects may be delayed and can erode project value.
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Proactive Indicators Used in Remote Operations of Oil and Gas Fields
By S.O. JohnsenIntegrated Operations (IO), remote operations or the “e-field of the future” introduce new ways of oil and gas production. IO
is increasing collaboration onshore and offshore, utilising new technology but raising new challenges related to risk
communication and safety. IO is now being implemented on the Norwegian Continental Shelf, leading to increased oil
recovery but IO should not reduce the level of HSE (Health, Safety and Environment).
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Cold Lake Heavy Oil Development - A Success Story in Technology Application
Authors D.R. Fair, C.L. Trudell, T.J. Boone, G.R. Scott and B.C. SpeirsCold Lake is an ultra heavy oil operation in north east Alberta, Canada operated by Imperial Oil Resources, an
ExxonMobil affiliate. It currently produces 24,000 m3/d (150,000 barrels per day) of 100 Pa·s (100,000 cP) oil
using over 4,000 wells. Commercial operations began in 1985 utilizing a thermal recovery technology called cyclic
steam stimulation (CSS).
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Environmental Vulnerability of the Coastal Environments of Western Perak to Oil Spills
Authors C.W. Sum, B.J. Pierson, A.A. Kadir, Z.Z.T. Harith and U. TeknologiThe risk of oil spills is high in the Straits of Melaka. Oil spills caused by collisions of ships and illegal dumping or discharge
of oil in the Straits have resulted in massive environmental pollution and degradation along extensive stretches of the West
Coast. To mitigate the effects of oil spills, a contingency plan based on assessment of effects of such incidents should be
formulated. As a start, an investigation of the vulnerability to oil spills of the coastal environments in Perak was carried out in
2000.
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The Challenges and Advantages of Openhole Completions in the Manati Gas Field
Authors A. Calderon, A.F. Aragão, C.M. Chagas, C. Guimarães and R. BarbedoThe offshore northeast Brazil Manati field is located in the Camamu Bay with water depths less than 50 m. The sandstone gas
reservoirs in this field have net pays with a thickness greater than 300 m and an average true vertical depth (TVD) of 1,400 m.
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New Technology Applications for Improved Attic Oil Recovery: The World's First Slim Smart Completions
Authors S. Lyngra, A.M. Al-Sofi, U.F. Al-Otaibi, M.J. Alshakhs and A.A. Al-AlawiSmart completions, passive inflow control devices (ICD) and maximum reservoir contact wells (MRC) are some of the more
recent technology advancements employed to enhance recovery and extend the life of mature oil fields in Saudi Arabia.
This paper illustrates a progression of technology in the most mature field operated by Saudi Aramco. In this field, one of
the challenges is to maximize production from the inadequately swept attic oil zone resulting from a significant permeability
contrast with the underlying high-permeability zone.
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Optimizing Well Productivity by Controlling Acid Dissolution Pattern During Matrix Acidizing of Carbonate Reservoirs
Authors F.F. Chang and M. AbbadThe chemical nature of carbonate rocks makes acidizing an effective matrix stimulation technique. Acid dissolves carbonates
at high reaction rate to create flow channels ("wormholes"). The high reaction rate often needs to be reduced to allow
wormholes to penetrate deep into the reservoir hence extending the effective wellbore drainage radius.
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Integrated Fracture Evaluation of a Malaysian Basement Well Drilled with Oil Based Mud
Authors E. Malim, S. Daungkaew, S.M. Hansen, L.C. Lim, R. Hussain, T.O. Aung, S. Kurniawan and Z.A. ZulkefliIn Malaysia, naturally fractured basement reservoirs around the Malay basin are being explored for additional reserves. Such
reservoirs are targets by new technology tools thus allowing an optimized formation evaluation program. These reservoirs are
more difficult and expensive to be evaluated compared to a conventional reservoir due to its challenging environment. This
paper presents the challenges and results of the formation evaluation program in one of the fractured basement reservoirs.
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Geosteering in Thin Reservoirs for Maximum Reservoir Contact
Authors W. Al-Alqum, P.J. Butt, M. Javalagi, T. Al-Zahrani, U. Khan, A. Laota and A. JainIn the past, thin reservoirs (less than 30 ft.) were considered economically unattractive due to typical low production rates. The
development of modern drilling and real time logging technologies have made it possible place horizontal wells by geosteering
within good porosity sections of very thin reservoirs. This have been a game changer for development of thin reservoirs as it is
now feasible to drill wells with sufficient reservoir contact to yield commercial oil production rates.
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Extended Reach Horizontal Well Drilling and Placement Using 3D - Visualization and Integrated Geosteering Techniques
Authors P.J. Butt, R.H. Sayed, T.G. Day, A.M. Behair and S.M. DossariThe emergence of extended reach horizontal drilling technology offers unique opportunities for improved hydrocarbon
recovery. There has been a steady progression in the vertical depth and horizontal departure length of ERD wells. In Saudi
Arabia, development drilling programs increasingly require directionally drilled well trajectories to reach the bottom hole
targets.
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Energy Security and Diversity—The Role of a Technology Strategy for an Integrated Oil Company
By J.L. BravoShell has embarked on a technological journey to achieve a sustainable energy supply to markets that are growing and
expanding. Technology is the tool that will unlock the necessary resources in a responsible manner. This paper discussed the
role a focused technology strategy plays in such a journey and how Shell has benefited from the exercise of focusing its
technological thinking to deliver the mission of "More Upstream and Profitable Downstream". Clearly one of the goals of this
technological journey is to achieve a measure of energy security by energy diversity and the paper explores several of the
options Shell believes will be relevant in the near and long term future.
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Plant Integrity and Reliability are the Keys to Improving Profitability
Authors S.D. Kapusta and J.W. ReynoldsThe technical integrity of a plant means that, under specifief operational conditions, the risk of failure is as low as reasonably
possible, or A.L.A.R.P. This definition does not precisely tell us what is technical integrity, nor how it can be achieved and
maintained.
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Case Study―The Disappearing Plug Provides Cost Efficient Horizontal Completions for an Operator in Malaysia
More LessOver the past 3 years, an operator in Malaysia has developed several large-bore gas wells with horizontal trajectories. The
completion team was faced with several challenges in designing the completion of these wells, particularly in the area of
deploying a plugging device to test the completion string and to set the production packer. Traditionally, two conventional
plugging methods have been used ― slickline-deployed plugs or ball-activated pump-out plugs. Due to the deviated
trajectories and associated intervention risks, both methods were deemed unfeasible. A coiled-tubing intervention could have
been considered, but this method would have added significant cost to the completions. To actualize these wells, therefore, an
operator needed to find an alternative method that would provide a low-risk, cost-effective tubing-testing and packer-setting
device.
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Providing "Mega Project" Topsides Facilities in Deepwater Malaysia
By C.J. LangleyThis paper describes the project management processes used to design and procure the topsides facilities for the Gumusut-
Kakap project.
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Understanding the Plumbing in Your Field - Application of Reservoir Connectivity Analysis to Improve Oil and Gas Recovery
Authors E. Tioe, M.R. Sarif, M.R. Elias and P.J. VrolijkThis paper describes the application, outcome and benefits of Reservoir Connectivity Analysis (RCA) in three producing
fields within the ExxonMobil Exploration and Production Malaysia Inc. (EMEPMI) operated area in the Malay Basin. The
reservoirs within these fields typically have complex structural and stratigraphic relationships resulting in intricate reservoir
plumbing that eventually influences the distribution of reservoir fluids and pressures. The RCA technique has been useful to
help explain the plumbing resulting in scenarios that can yield drilling opportunities as well as in the placement and risking of
drillwells. In addition, the technique also contributes to partially arresting the declining production trend and more
importantly improves hydrocarbon recovery.
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ICD Screen Technology in Stag Field to Control Sand and Increase Recovery by Avoiding Wormhole Effect
Authors S. Wibawa, S. Kvernstuen, A. Chechin, J. Graham and K.R. DowlingThis paper presents the first installation of nozzle-based passive inflow control devices (ICD) for Apache Corporation in
Australasia. This recent technology was simultaneously applied in a production well and a water injection well, and served as
a demonstration of its potential benefits in the development of Stag oilfield.
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The Jerneh Story – Technology and Teamwork
Authors W.C. Morris, A.J. Skymmar and A.W. KamaruddinThis paper summarizes ExxonMobil’s redevelopment of a severely drawn down and challenging gas field in
Malaysia. The drilling campaign tackled the prolific Jerneh field, marked by significant depletion and fracture
gradients as low as ~8.0 ppge. Previous campaigns experienced severe lost returns, stuck pipe, and escalating
costs.
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Single Trip Multi-Zone Gravel Packing - Case Study at Handil, Bekapai & Sisi- Nubi Fields
Authors M. Banman, E. Delattre, X. Degos and S. SuryadanaStacked gravel-packs involve limited technical risk, but require considerable rig time when completing deep multi-zone sand
control wells. Four field developments are challenging the conventional approach to completing long sand control zones by
using newer technologies.
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Temana Field Pilot Implementation: A Shift in Sand Control Philosophy to Improve Well Performance
Authors W.A.B.W. Mohamad, M. Jadid and M.A. WahbaThe Temana field consists of unconsolidated reservoirs which require active sand control. Conventional Internal Gravel
Packed (IGP) technique has been widely applied as it has provided a reliable means of abating sand production. These
completions however, have shown high skins (>15) which had increase with time due to fines migration into the packed area
especially with the advent of water production. In many cases, flow efficiencies were reduced by 70% and this had severely
affected well performances with aging.
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Fractured Reservoir Characterization Incorporating Microseismic Monitoring and Pressure Analysis During Massive Hydraulic Injection
Authors K. Tezuka, R. Kamitsuji and T. TamagawaThe fractured basement gas reservoir in Yufutsu field was characterized by integrating static fracture information obtained
from borehole micrtyo-resistivi images and dynamic information recorded during a massive hydraulic injection operation.
Yufutsu gas reservoir is so called “fractured reservoir” seated in Cretaceous granite and Eocene conglomerate formation at
around 4 - 5km depth in the Southern Ishikari Plain, central Hokkaido, Japan. One of the most important issues in the
development of this reservoir is how to model the fracture system which contributes to the hydrocarbon migration.
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Automatic Evaluation of Near-Well Formation Flow Interaction during Drilling Operations
Authors J.E. Gravdal, H.P. Lohne, G. Nygaard, E.H. Vefring and R.W. TimeWithin the next few years wired drill pipe telemetry is expected to revolutionize the ability to measure and transmit downhole
pressure, temperature, mechanical forces and formation parameters in real-time during drilling operations. Bandwidth,
reliability and availability will improve dramatically and lead to better premises for developing new technology for more
advanced drilling methodology. Downhole real-time measurements are expected to be utilized in a broad range of applications
compared to today's drilling procedures. Among these are real-time analysis systems, decision support systems or advanced
drilling control systems, e.g. for Managed Pressure Drilling or Underbalanced Operations that will be improved and adapted to
this new window into the well.
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SVS Fracture Solutions: Complex Fractured Reservoir Modelling
Authors L. Bazalgette, K. Beintema, N. al Yassir, P. Swaby, P.D. Richard and K. RawnsleyThe optimization of hydrocarbon production from complex naturally fractured reservoirsdepends strongly on the accuracy of
static models and on the upscaling processesapplied to their properties to build dynamic simulation models. SVS Fracture
Solutions is the Shell proprietary software that allows the co-visualisationand interrogation of static and dynamic fracture data
sources, ranging from seismicto outcrop to wellbore/core scale.
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Representative Reservoir Fluid Sampling: Challenges, Issues, and Solutions
Authors J.J. Lawrence, D.M. Chorneyko, C.K. Smith and N.R. NagarajanAcquiring sufficient volumes of representative reservoir fluid samples is the first and foremost critical step in obtaining
reliable PVT data and the resulting fluid characterization for efficient reservoir management. The fluid sampling challenges
include appropriate selection of a sampling method, designing and customizing the sampling operation to the specifics of the
reservoir rock and fluids, and implementing rigorous QA/QC procedures for a successful sampling program. Avoiding twophase
flow in the reservoir, minimizing fluid contamination from the drilling mud and the additives, maintaining sample
integrity, and assessing the sample quality on-site are some of the serious issues that need careful attention during the
sampling operation. Appropriate measures and techniques to resolve these issues will be discussed in detail with examples
ranging from extra heavy oils through lean gas-condensates.
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Gas Transport as Hydrate
More LessA new process of transportation of Natural Gas using Gas Hydrate is presented as applicable to land transport in India. India’s
vast resources of stranded gas fields can be economically brought to the consumer via this technology. Current methodologies
are discussed and an appropriate form is presented in the context of domestic road and rail networks. Formation, storage,
transport and recovery issues are addressed. Economic viability is investigated. Formation and Transport are redesigned to suit
domestic conditions of labor and road/rail system.
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Development of Corrosion Inhibitor and Kinetic Hydrate Inhibitor for the Pearl GTL Project
Authors H. Pit, R. Ünsal and S. McFarlandPEARL GTL (Gas To Liquids) project is a fully integrated project that will take 1.6 billion cubic feet per day of
unprocessed gas from Qatar's North field into onshore gas processing plants, producing 140,000 barrels per
day of GTL products and 120,000 barrels per day of natural gas liquids.
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A New Approach for Optimizing Cement Design to Eliminate Microannulus in Steam Injection Wells
Authors S. Saidin, I. Sonny and M.F. NuruddinOver the past few years, several papers have been published discussing the long-term mechanical durability of the
cement sheath in steam injection well. Looking at this, the research is continued to find the right process flow in
optimizing cement design as a new approach to eliminate microannulus in steam injection well. This process flow is
based on previous experiences cementing in steam well.
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Successful Water Shut Off in Extended Reach Horizontal Wells Using Inflatable Technology
Authors D. Alvarez and A. SnaasThe Idd El Sharji field in the Arabian Gulf is located offshore Qatar. It has been developed with many extended reach
horizontal wells and pressure maintenance is achieved by an aggressive water injection program. In a recent remedial
operation a total of three such wells were treated using coiled tubing (CT) conveyed inflatable equipment, two of them being
water injection wells with thief zones which gave rise to inefficient sweep and low injection pressure and the third being a
producing well with an unacceptably high water cut.
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Model Updating and Optimum Control for Water Coning: An Application of Ensemble Kalman Filter
Authors C.A. Mantilla, Q.P. Nguyen and S. SrinivasanRecent advances in downhole data acquisition facilitate continuous updating of the reservoir model and optimum control of
well operations. Ensemble Kalman Filter is a model updating algorithm that permits rapid assimilation of production
response in reservoir models and thus renders the process feasible in a real time setting. This paper demonstrates the
feasibility of implementing a feedback optimum control procedure for controlling water production due to coning. Optimal
production rate setting for a reservoir with strong bottom water influence is demonstrated.
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Nanoparticles for Formation Fines Fixation and Improving Performance of Surfactant Structure Fluids
Authors T. Huang, J.B. Crews and J.R. WillinghamThe migration of formation fines during hydrocarbon production has been a major problem to resolve in our industry. In many
reservoirs fines migrate to the near wellbore region where they concentrate and choke hydrocarbon production. To prevent this
problem, migratable fines should be kept or fixated as far away from near wellbore region as possible.
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Smart Completion Installation and Experience in a High Pressure Gas Environment in Champion West field, Offshore Brunei
Authors A. Turco, R. Salakhetdinov, B. Dale-Pine and R. Van LeldenThe current phase of the Champion West Field Development is one of BSP's most challenging project to date for drilling and
completion reasons.
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Integrated Interpretation Identifies Unconventional Basement Reservoirs in the Sabatayn Basin, Yemen
More LessBasements rarely form hydrocarbon reservoirs; and consequently are rarely considered as hydrocarbon exploration targets.
The few basement reservoirs are classified as unconventional reservoirs.
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Application of Unique Methodology and Laboratory Capability for Evaluation of Hydrocarbon Recovery Processes
Authors F.H.L. Wang, E.M. Braun, J.D. Kuzan, N.F. Djabbarah, M.M. Honarpour, C.G. Chiasson and B.E. MilliganWe have developed a new, and to our knowledge unique, capability to make steady-state measurements of relative
permeability under full reservoir conditions with three flowing phases (oil, gas, water). The resulting measurements have
ramifications for reservoir simulation input for fields in which recovery processes beyond waterflooding or gasflooding will
be considered, such as water-alternating-gas (WAG) injection and double displacement process (DDP) by gas injection
following waterflooding.
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Integrated Genetic Analysis of Sediment Generation and Evolution to Predict Basin-Scale Clastic Reservoir/Seal Distribution and Character
Authors W.A. Heins, D.B. O‘Grady and C. ArdıçGenetic history ultimately determines the geographic and stratigraphic distribution of clastic reservoirs, clastics seals,
and their quality. A thorough accounting of sediments’ life history, including sediment generation (where, from what kind of
provenance lithotypes, under what environmental conditions), sediment transport (topographic gradients, transport mechanisms), and
sediment deposition (basin bathymetry, depositional mechanisms), can delineate the most likely distribution and character of clastic
sediments in the basin. ExxonMobil integrates formal workflows, extensive global databases, and patented software to ensure that
appropriate genetic information is consistently incorporated during exploration to guide reservoir/seal play-element interpretation and
risking.
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Well Operability Limits for Managing Production from Deepwater Reservoirs
Authors E.R. Grueschow, B.A. Dale, R. Pakal, D.C. Haeberle, J.M. Wallace and M. AsmannPhysics-based well performance modeling technology has been developed that establishes Well Operability Limits (WOLs)
to mitigate well failures due to the complex geomechanical loads resulting from compacting reservoirs. This new technology
assists in active reservoir management by both limiting the producing drawdown pressure on wells most susceptible to failure
and providing confidence in increasing drawdown pressure on wells determined not to be susceptible.
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An Overview of Heavy and Extra Heavy Oil Carbonate Reservoirs in the Middle East
By J.W. BuzaGlobal heavy oil resources in carbonate rocks have been estimated to be on the order of 1.6 trillion barrels1, of which about
one-third may occur in the Middle East. Published resources for specific fields and proprietary databases, however, suggest a
more modest STOOIP resource base of approximately 120 BBO. Owing to its vast light oil reserves, documentation in the
public domain on Middle Eastern heavy oil accumulations is not complete but enough information is available to assemble a
reasonable picture of the geological setting, reservoir and oil quality issues and the status of cold and EOR production in the
region.
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Recruitment and Retention of Expat Staff
By S. MahajanFive continents represent a great sport festival on Earth
after every four years which results into a successful event
like Olympic!
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‘Geology Drives Technology’—Application of Coil Tubing Underbalanced Drilling in the Cooper Basin, Australia
Authors A.L. Telesford, S. Cheong, T. Cotton and S. ChipperfieldRecord breaking oil prices and the forecasted upward pressure
on gas prices form an exciting future for Australia’s
hydrocarbon industry. This commercial back-drop is creating a
heightened interest in new technologies capable of improving
recovery factors and accelerating production particularly in
brownfield environments.
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Integrated Reservoir Petrophysical Characterization and 3D Modeling: A Deep-Water Turbidite Reservoir Case Study
Authors L. Ruvo, M. Calderoni, M. Cesaro, F. Fonnesu, I. Franco, A. Lyne and S. TommiCore data and logs - wireline and while-drilling - were processed and integrated with a sedimentological model to provide
consistent log-facies classification and petrophysical characterization as input to a 3D geological model of an off-shore deepwater
turbidite reservoir.
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An Insight into the World’s Largest LNG Ships
More LessKorean shipbuilding is buzzing with talk around the large
LNG (Liquefied Natural Gas) vessels being constructed there.
The collaborative efforts of Qatargas 2 and ExxonMobil have
achieved a breakthrough in the LNG shipping industry by
developing, contracting and implementing a new generation of
the largest, most efficient LNG ships.
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Managing the Safety of Large, Onshore Workforces - The Qatargas 2 Project Experience
Authors C.T. Khoo, Y.Y. Lee and M.D. PrattManaging the safety of very large construction workforces (over 25,000) made up of workers from very diverse backgrounds
and experience levels can be a major undertaking on any project.
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Integrated Approach to Modeling Gravel Packs in Horizontal Wells
Authors S. Jain, R. Chanpura, R. Barbedo and M. MouraGravel packing has routinely been used as a sand control method in open-hole horizontal wells. With the advances in drilling
technology in recent years, horizontal wells with lengths ranging from 2,000 to 6,000 ft have become more common.
Executing these open-hole gravel-pack jobs (alpha-beta packs) has been a challenge.
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‘Intelligent’ Wired Drill-Pipe System Allows Operators to Take Full Advantage of Latest Downhole Sensor Developments
Authors D. McNeill, M. Reeves, M. Hernandez, L. Lawrence, B. Redmond and R. RussellTransmission of real-time data acquired during drilling from downhole MWD or LWD sensors is now an integral part of
almost all drilling operations. The value of the data received, whether it is directional, formation evaluation or drilling
mechanics is now well established, and it is difficult to imagine drilling modern well designs without this data. Sensor
technology has developed to the point where almost all traditional wireline sensors can now be replaced with LWD sensors
that can provide equally good and often better data than their wireline equivalents.
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Role of Comprehensive Reservoir Surveillance and Monitoring in the Dukhan Gas Cap Recycling Scheme—A Case Study
Authors K. Al-Ansari, T. Ariffin, A. Hussain and J. BroadThis paper describes the various initiatives which have been introduced by the reservoir surveillance team to monitor the
movement and breakthrough of lean injection gas during the recycling of a large gas cap reservoir. Faulting in the crestal area
could complicate the movement of the injection gas. In addition, it was noted that the measured CGR (as measured with a test
separator) was not consistent with either the current production from the process plant or expectations based upon the initial oil
column properties and composition. Also described are the different measures which were taken to confirm the actual CGR.
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Optimized Big Bore Gas Wells for Qatar North Field
Authors B.M. Clancey, A.S.D. Khemakhem, E.M. Garcia, M. Manuel, T.F. Bene and J.M. BeneschAn extensive big bore gas well drilling and completions program has been in progress since 2002 to develop the giant North
Field, Offshore Qatar. This is the world’s largest non-associated gas field and contains approximately 900 Tcf of abnormally
pressured natural gas producing from thick, Khuff carbonate reservoirs.
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Reservoir Definition at the Jansz/Io Gas Field, NW Shelf, Australia: A Case Study of an Integrated Project From Exploration to Development
Authors C.C. Jenkins, R.M. Chiquito, P.N. Glenton, A.A. Mills, J.G. McPherson, M.C. Schapper and M.A. WilliamsThe recent discovery of the giant Jansz/Io Gas Field in the Carnarvon Basin, which is considered to be mature from an
exploration perspective, has challenged explorers to reconsider exploration strategies in mature basins. The field was
discovered in 2000 by the Jansz-1 well and lies 250 km offshore from the north-west coast of Australia, in water depths
ranging from 1100 to 1400 m. Jansz/Io is a structural/stratigraphic trap with the gas-bearing reservoir in an Upper Jurassic,
mud-rich sandstone, up to 65 m thick, deposited in a shallow-marine depositional setting.
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Prediction of Reservoir Distribution and Quality in Tectonically Active NW Borneo Slope
Authors M. Grecula, S. Kattah, O. Akinsanmi, H. Uy, K. Hedeir, P. Osterloff, K. Maguire, P. Shiner, A.A. Ashaari and N. TurnerReservoir distribution and quality in an active slope setting are controlled by the evolution of slope accommodation and
patterns of sediment input onto the slope.This presentation outlines the workflows and key findings of a regional study
attempting to reconstruct the slope depositional history and improve reservoir prediction in an area of 8,000km2 offshore
Sabah, Malaysia.
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Applications of Optimal Control Theory for Efficient Production Optimization of Realistic Reservoirs
More LessIn practical reservoir management, although the intent is generally the maximization of some key quantity (net present value
or NPV, etc.), the operating parameters are seldom if ever determined using formal optimization techniques. The usual
approach to do so is manually, which is quite time consuming and very likely to provide suboptimal results. With the advent
of new numerical formulations and powerful computational resources, it now appears possible to apply systematic
approaches for efficiently optimizing reservoir performance.
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