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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
41 - 60 of 303 results
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Replacing Wireline Formation Pressure With Formation Pressure While Drilling in Long Horizontal Wells
Authors J.K. Larsen, C.J. Maeso, F. Liu, R. Narayanan and R. NomanThis paper presents a case history of how Formation Pressure While Drilling (FPWD) technology has effectively replaced
traditional pipe conveyed wireline technology in long horizontal wells.
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Integrated Data and Information Management System from SubSurface to Surface to Enhance Production Activity and Business Decision – Driving Cross Disciplines Integration through Data/Information Management
Authors T. Magdalena and N. SwatikaToday, it is so often we heard the words of “data or information”. Furthermore, it becomes the data or information
management process, where three important parts should be involved: input – process – output. From those
three, data become the “input”, and running systems or applications are the “processes” which will deliver
information as the “output”. Those three basic parts are essential for running continuously and simultaneously in a
daily operation by implementing the data or information management system practices within the company.
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Improved Techniques for Acquiring Pressure and Fluid Data in a Challenging Offshore Carbonate Environment
Authors K.D. Contreiras, F. Van-Dúnem, P. Weinheber, A. Gisolf and M. RuedaThe combination of low permeability, oil base mud and near saturated oils presents one of the most challenging environments
for fluid sampling with formation testers. Low permeability indicates that the drawdown while sampling will be high but this
is contra-indicated for oils that are close to saturation pressure. A logical response is to therefore reduce the flow rate but in
wells drilled with OBM an unacceptably long clean-up time would result.
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LNG Technology Advances and Challenges
Authors R.R. Bowen, M.R. Miller, J.L. Planteen, O.W. Tredennick, G.M. Norman, C.M. Duke and M.N. GreerThis paper outlines the development and implementation of technologies that have led to a significant growth in the worldwide
LNG business and offers a look at technology directions that may hold promise to help continue future growth. Among
the key technical enablers has been the evolution in the size of LNG trains over the past twenty-five years, resulting in
significant unit cost reduction. Similar to liquefaction facilities, LNG ships have also been increasing in size to achieve
similar reductions in unit cost of LNG transported. Lessons learned in the design, execution, and implementation of large
LNG trains and ships, as well as the overall changes of LNG liquefaction trains over the past twenty-five years, have been
key to the evolving design of the LNG value chain.
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A Compositional Wellbore/Reservoir Simulator to Model Multiphase Flow and Temperature Distribution
Authors P. Pourafshary, A. Varavei, K. Sepehrnoori and A. PodioProduction of hydrocarbon often involves gas and liquid (oil/water) concurrent flow in the wellbore. As a multi-phase/multicomponent
gas-oil mixture flows from the reservoir to the surface, pressure, temperature, composition and liquid holdup
distributions are interrelated. However, nearly all two-phase wellbore simulations are currently performed using “black oil”
simulators.
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Express-Technology for Direct Searching and Prospecting of Hydrocarbon Accumulation by Geoelectric Methods
Authors N.A. Yakymchuk, S.P. Levashov and I.N. KorchaginThe late publications testify that now the scientific institutions and service companies give the important attention to
geoelectric and electromagnetic methods (EM) of prospecting and exploring of oil and gas fields. New EM methods are
actively developed and the known ones are improved, the more wider application of these methods is observed during
investigation for oil and gas, both onshore, and offshore, and the aspiration of the companies to purposeful integration of EM
methods with seismic is marked also.
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BTX Plant Performance Tests (Best Practice)
Authors M.H. Al-Abdullatif and M. Al-GhamdiFor years Saudi Aramco faced rapid and chronic Claus catalyst deactivation induced by aromatics (BTX) in feed acid gas (lean
acid gas). This catalyst deactivation resulted in low sulfur recovery and frequent shutdowns to replace the catalyst. After
completing an exhaustive process selection study to identify the most cost effective solution to the problem, the company
proceeded with installation of regenerable activated carbon beds upstream of sulfur recovery units (SRUs) to remove
aromatics contaminants before they reach the converter beds.
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Improving the Detection and Analysis of Seafloor Macro-Seeps: An Example from the Marco Polo Field, Gulf of Mexico, USA
Authors H. Dembicki Jr. and B. SameulThe hunt for seafloor hydrocarbon seeps has become an important component of many deepwater exploration
programs. Finding thermogenic hydrocarbons at the seafloor is evidence of a working petroleum system and the
recovered hydrocarbons can be used to give insight into the contents of the subsurface reservoir. But
hydrocarbon seeps are often small features not easily recognized on conventional seismic data and sampled
seep oils often mix with recent organic matter and experience biodegradation that hamper the interpretation of
thermogenic hydrocarbons.
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Assessment of the Fisheries Impact of Seawater Use by Offshore Facilities
By J.P. SmithProposals to construct multiple offshore liquefied natural gas terminals (LNG) in the United States that planned to use
seawater as a heat source for vaporization of LNG have prompted assessments of the potential for entrainment of marine
organisms in seawater intakes to impact fisheries. The publication of multiple impact assessments for facilities in the same
region facilitated a critical review of the techniques currently in use and led to research on improvements in assessment
methodology.
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Paraffin Inhibitor Applications in Deepwater Offshore Developments
Authors D.W. Jennings and M.E. NewberryParaffin inhibitors can have a significant impact on crude oil production for some developments. Paraffin inhibitors are used
for reducing wax deposition in flowlines and/or for improving the flow properties of waxy crude oils. The effectiveness of
the paraffin treatment is dependent on the crude oil chemical composition, inhibitor chemistry, inhibitor dose rate, and the
production conditions.
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Seismic Expression of Loss Zones Within Carbonates of the Browse Basin
By M.R. PowerThis integrated study documents the drilling hazards associated with drilling through the complex overburden geology of the
Browse Basin (Fig. 1). Previous drilling campaigns by other operators in the region have encountered severe problems when
drilling riser-less with seawater and viscous mud sweeps through unconsolidated sands of Early Tertiary age.
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Tackling Gas Field Decline with Efficient Chemical Water Shut-off : Successful Application on Peciko Field (East Kalimantan, Indonesia)
Authors A. Armon and L. RiyantoHigh water production in a gas well could significantly
reduce gas production due to high friction losses in the
tubing, the effect of water blocking in front of
perforations and formation damage due to water, which,
eventually, could lead to a significant loss of recoverable
reserves. Selective mechanical water shut-off , (i.e. casing
patch), the main technique used to solve this problem so
far, has some disadvantages, mainly reducing the inside
diameter of the production tubing which makes future
mechanical water shut-off of the deeper reservoirs more
difficult. Chemical water shut-off is the preferred solution
to this problem.
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Wellbore Stability Predictions Using Mechanical Earth Model—A Case Study for Okan Field, Offshore Nigeria
By X. YiOkan field is one of the oldest fields being developed in
offshore Nigeria. Geomechanics challenges with further
development include drilling through severely depleted
shallower reservoirs, high-angle penetration through
sloughing shales, and horizontal wells. Significant
downtime due to tight hole, packoff, and stuck pipe was
experienced in several wells drilled recently, which
resulted in significant extra capital expenditure.
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Optimization and Rejuvenation of Mature Assets: Challenges and Solutions for Water Control in Gas Wells
Authors F. Wahid, P. Mukerji and Z. ZaoualiAs more fields advance towards the later stages of their life, there is a compelling drive to optimize production. It is necessary
to understand the changing reservoir performance over time and therefore proactive surveillance plays a key role in achieving
production optimization.
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Advanced Wells: A Comprehensive Approach to the Selection between Passive and Active Inflow Control Completions
Authors F.T. Al-Khelaiwi, V.M. Birchenko, M.R. Konopczynski and D.R. DaviesAdvances (from conventional wells to horizontal and then multi-lateral) in well architecture for maximising reservoir contact
have been paralleled by advances in completion equipment development of both "Passive" Inflow Control Devices (ICDs)
and "Active" Interval Control Valves (ICVs). These devices provide a range of fluid-flow control-options that can enhance
the reservoir sweep efficiency and increase reserves. ICVs were initially employed for controlled, commingled production
from multiple reservoirs; while ICDs were developed to counteract the "Heel-Toe" Effect. The variety of their reservoir
applications has since proliferated, so that their application areas now overlap. It has become both complex and time
consuming to select between ICVs or ICDs for a well’s completion.
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Resolving Created, Propped, and Effective Hydraulic Fracture Length
Authors C.L. Cipolla, E.P. Lolon and M.J. MayerhoferRecent advances in hydraulic fracture mapping technologies have provided a wealth of information on the created fracture
length in numerous geologic settings. Prior to such measurements, fracture length was estimated using "un-calibrated" fracture
propagation models––but there was significant uncertainty in the results that cascaded into subsequent production analyses.
However, we also need to understand how the created fracture length relates to the location of proppant in the fracture and the
producing or effective length to evaluate well performance and improve stimulation designs. Unfortunately, the advanced
fracture mapping technologies that today provide accurate measurements of the created fracture length cannot provide any
insights (yet) into the propped and effective fracture lengths. Advanced production data analyses, pressure transient testing,
and/or numerical reservoir modeling are required to determine the effective fracture length.
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Prospecting and Modelling the Deepwater Turbidite Through Integrated G&G Studies
Authors M.H. Liau, K. Waters, H.D. Johnson and C.A.L. JacksonThe study was focused on the Sheryl field located in Block 21/23a, Central North Sea, UK. This field was
discovered in the Eocene Tay deepwater turbidite reservoir. A robust conceptual geological model was constructed
via an integrated approach of utilising the rock physics forward modelling, seismic attribute and geological data for
the purpose of further prospect evaluation and static model building.
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Lessons Learnt and Experiences Gained in Developing Heavy Viscous Oil Field Using Pattern Waterflood: Case History if a Field in South Oman
Authors V. Gupta, C. Barrio and K. MahrooqiThe paper describes the history of a successful field
development of a complex heavy oil field in south Oman
and illustrates the changing development philosophy
dictated by the field behaviour.
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Integrated Modeling and Statistical Analysis of 3-D Fracture Network of the Midale Field
Authors D. Bogatkov and T. BabadagliAs the maturation of conventional oil reserves pushes the industry to explore challenging reserves, state-of-the-art reservoir
characterization becomes an integral part of any exploration and production venture. Naturally fractured reservoirs are good
examples of such challenging fields. Oil recovery performance estimation from such reservoirs requires a good understanding
of reservoir structure and its effect on the dynamics of the process. Addressed in this work is one of the critical issues for
fractured reservoirs—that is characterization and 3-D modeling of a fracture network.
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Sequence Stratigraphy Approach to Identify New Play and Evaluation of Petroleum System in Blocks 102 & 106, Song Hong Basin, Vietnam
Authors H. Harun, O.A. Mahmud and J. UnirBlocks 102 & 106 are located in the Song Hong Basin, offshore, Northern Vietnam in water depth of 25 to 30 meters
(Figure 1). Petronas Carigali Overseas (V) Sdn. Bhd. (PCOSB) is the operator of the blocks with a 50% working interest. To
date, PCOSB has acquired about 1054km2 of 3D data and drilled three exploration wells. The first well was drilled in 2004
with minor oil and gas discovery in the Middle Miocene shallow marine sand.
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