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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
61 - 80 of 303 results
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Life Cycle of a Depletion Drive and Sour Gas Injection Development: An Example from an A4C Reservoir, South Oman
Authors B. Haynes Jr., N. Kaura and A. FaulknerA field in South Oman discovered in 1978 is an over-pressured sour oil reservoir. Since first oil
began in 1982, the field will has gone through three stages of development during its life. These
can be summarized as follows; pressure depletion, pressure maintenance with sour separator gas
plus sweet make-up re-injection, pressure maintenance with sour separator gas plus sour makeup
gas injection from other fields
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Constraining 2-D Maps to 3-D Reservoir Descriptions—Field Study
More LessIt is well established in reservoir description process that coarser scale of the data has less uncertainty associated with it. For
example 3D seismic data may provide information about column average porosity data. Many procedures in the literature are
developed for integrating such column averages in 3D property distribution.
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Moving Closer to Real-Time Field Management With Self Organizing Wireless Technology
Authors P. Schwarz and W. BakerThe upstream production segment of the oil & gas industry is currently experiencing many pains ranging from significant
decreases in production, increases in operating & maintenance costs, and increasing human, asset, and environmental safety
risks.The impact of these challenges is reducing the profitability for the producer and is also being transferred all the way
down to end consumer in high natural gas and oil prices.
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Using Open And Cased Hole Sonic Anisotropy And Geomechanics Modeling For Hydraulic Fracturing Evaluation: A Case Study - Carmópolis Field, Northeast Brazil
Authors C.M.C. Almeida, R.L.C. Melo, B.B. Holzberg and C. GuimaraesHydraulic fracturing plays a very important role in these mature and complex geology fields located onshore northeast
Brazil – Carmópolis and Sirizinho Fields – on the revitalization of the oil production. The purpose of this work is to
demonstrate the benefits of applying an integrated analysis for a hydraulic fracturing evaluation, that is performed using a
workflow including time-lapse Sonic Anisotropy and Flexural Waveform Dispersion Analysis (open hole and cased hole)
which main objectives consisted on the generation of a horizontal stress map for the studied area and an accurate
measurement of the hydraulic fracture heights on the borehole wells together with a representative Mechanical Earth Model
(MEM).
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Fracture Conductivity Using Emulsified Acids: Effects of Emulsifier Concentration and Acid Volume Fraction
Authors S.H. Al-Mutairi, A.D. Hill and H.A. Nasr-El-DinNone uniform acid etching of the face of the fracture is the primary cause of fracture conductivity in acid fracturing. The
retained conductivity of the fracture after the acidizing depends on many factors some pertaining to the rock texture, some to
the acidizing conditions and others to the treating fluids. Previous research focused on the texture of rock and acidizing
conditions such as flow rates, temperature and contact times. These parameters along with the type of acid used proved to
affect the fracture conductivity as was shown in previous research. This paper focuses on the fracture conductivity after
acidizing it with the emulsified acids. The objective of this work was to study the effect of droplet size, acid volume fraction
and emulsifier concentration on the fracture conductivity.
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St. Joseph Field Waterflood Project: Fractured Water Injection Using Smart Well Technology
Authors D. Harris, N.G. Du Rieu and K.I. RollettSt Joseph is a mature oil field offshore Sabah, Malaysia. It has been on production since 1981, gas injection started in 1996. A
large re-development project is planned to install water flooding and restore offshore living quarters. First water will be
injected in 2010.
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Smart Gas Production System Optimising Gas Delivery for Sarawak
By M. WongThe Smart Gas Production System (SGPS) is an integrated production system model of the offshore Malaysian Sarawak gas
production network . The model combines reservoir, wellbore and surface network information to optimise gas production to
the onshore processing facilities at Bintulu. The unique feature of the model is it also takes into consideration the gas demand
for the overall network as well as requirements of the individual gas contracts. This paper will concentrate on the features of
the integrated model, complexities of the Sarawak production system and how the model is used to meet LNG delivery
demand.
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Recent CSEM Learnings in Deepwater Borneo
More LessControlled Source Electromagnetic (CSEM) is an emerging technology with the potential to provide detailed resistivity images
of the subsurface. Following a string of successes with the deployment of CSEM and drilling performance in DW Borneo in
2004, CSEM data was acquired over a number of similar structures in 2006. Proprietary inversion techniques indicated the
possible presence of a shallow surface resistive body, while hinting at the presence of slightly elevated resistivities at depth.
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Adaptive Parallel Reservoir Simulation
Authors P. Lu, J.S. Shaw, T.K. Eccles, I.D. Mishev, A.K. Usadi and B.L. BecknerThe availability of multi-core CPUs for personal computers makes desktop parallel computing a reality. Parallel computing
for reservoir simulation creates the opportunity for significant run time reduction but also introduces additional technical
challenges, particularly in the areas of load balancing and general algorithmic robustness.
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Bubut - A Near Field Exploration Success, Inboard Brunei
Authors Z.H. Ahmad, E.S. Hassan, K. Raghavan, I. Donaldson, H. Kooper, G. Maier, M. Dean, C. Tucker and S. GloverBrunei Shell Petroleum (BSP) recently discovered Bubut (BU), a significant gas accumulation
in its mature heartland and close to liquefied natural gas (LNG) facilities. The current
commercial focus on gas raised the significance of the deep gas-bearing sequence which was
first identified in 1983.
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Oil Sands Reservoir Characterization in Athabasca, Canada
Authors A. Takahashi and T. TorigoeReservoir characterization was conducted by combining geological and geophysical methods in the oil sands area, Athabasca,
Canada. For the production of bitumen from the reservoir 200 to 500 meters in depth, the Steam Assisted Gravity Drainage
(SAGD) method (Steam Injection EOR) has been adopted as bitumen is not movable at the original temperature. It is essential
to understanding the detailed reservoir distribution as bitumen is produced just from the vicinity of the producing wells by the
SAGD method.
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Geochemical Evaluation of Reservoir Compartment, Effective Pay Zone and Origin of Gas Seepage in Production Site Using Gas Molecular and Isotopic Composition
More LessGas compositional and isotopic analyses were performed for cuttings-adsorbed gases densely collected by headspace gas
method from the wells drilled in Northeast Japan to identify hydrocarbon-charged intervals, assess vertical
compartmentalization, and clarify effective pay zones in commingled production. Molecular and carbon isotopic compositions
of gases usually provide information on their origin, maturity, compositional change due to migration, and extent of
biodegradation.
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Natural Gas Transportation Infrastructure Concepts
More LessNatural gas is rapidly gaining ground with its reputation as an alternative environmentally friendly fuel source.
Currently major gas exporting countries are already exporting to major markets in Asia and Europe. Natural gas
can be transported in a gaseous, liquid or solid phase; however, the infrastructure needed to transport gas via
pipelines or in its liquid form as LNG is expensive.
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Source and Reservoir Rock Distributions in Coal-Bearing Non-Marine Sediments within a Sequence/Tectono-Stratigraphic Framework: Implications for Non-Marine Rock Exploration
More LessCoal-bearing non-marine sediments are one of major targets of hydrocarbon exploration, as it contains high source- and
reservoir-rock potential. Since non-marine sediments are more heterogeneous in general than marine sediments, this paper
attempted to construct a realistic and practical model for source and reservoir rock distributions in non-marine sediments
within a sequence/tectono-stratigraphic framework, which focuses on controlling factors on the distribution patterns. This
study selected 3,000 m-thick Eocene coal-bearing non-marine sediments in Hokkaido, Japan as a case study field to collect
basic data for constructing and testing the source- and reservoir-rock distribution model. In addition to sedimentological field
analysis, geochemical source-rock potential analysis was conducted, and relevant published data were also considered to
obtain a comprehensive model.
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3D Seismic Geomorphological Analysis of Submarine-Fan Turbidite Reservoir Distributions and Shape Variations Using Seismic Facies and Sedimentological Information: Examples from Active Margin Basins
Authors O. Takano, M. Nishimura, T. Tsuji, T. Saeki and T. FujiiRecent development of 3D seismic technology enables to visualize three-dimensional distributions of subsurface reservoir
rock bodies. It is expected that linking this technology to sedimentological concept and methods such as depositional systems
and sequence stratigraphy leads to realistic and efficient solutions in reservoir distribution analysis, since such genetic process
information provides a guideline for better interpretation and evaluation.
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An Integrated Approach to Field Surveillance Improves Efficiency in Gas Lift Optimization in Bokor Field, East Malaysia
Authors G. Kartoatmodjo, R. Strasser, F. Caretta, M. Jadid, G. Bakar and J. LiewProper fieldwide production surveillance for artificial lift is critical in brown field operations to ensure optimum field
production and efficiency. Using appropriate processes, tools and technology, production surveillance is able to be conducted
in efficient manner. These tools play an important role in well diagnostics to cater for appropriate production optimization for
the field.
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A New Three-Phase Oil Relative Permeability Simulation Model Tuned by Experimental Data
Authors B. Yuen, A. Siu, N. Bukhamseen, S. Lyngra and A. Al-TurkiThe measurement of three-phase displacement involves varying two independent saturations. Therefore, recording the
relative permeability for all possible three-phase displacement combinations in the reservoir becomes impractical. A common
practice utilizes two-phase data to estimate three-phase relative permeability in the reservoir simulator. Most three-phase oil
relative permeability models used in commercial simulators do not contain the flexibility of tuning with measured
experimental data.
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Crosswell Electromagnetic Tomography: from Resistivity Mapping to Interwell Fluid Distribution
Authors A.F. Marsala, S. Ruwaili, S.M. Ma, Z. Ali, M. Buali J.-M. Donadille, S. Crary and M. WiltA crosswell electromagnetic (EM) technology trial project has been conducted in Haradh field in Saudi Arabia, located in the
southern part of Ghawar field. The project objective is to map the fluid distribution and monitor the movement of injected
water. Crosswell EM resistivity is one of the technologies that can be deployed for deep reservoir surveillance during
hydrocarbon production.
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Semi-Analytical Study of Production of Gas Hydrates and Their Techno-Economic Uses
Authors I. Kurawle, M. Kaul, Z. Amin and N. KulkarniGas Hydrates being projected as the next most important source of energy are object of immense research activity. The study
relates to an analytical review of the conditions for the Natural Clathrate formation, production and their use as a source of fuel
and gas transportation systems.
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Reconstructing Sedimentary Depositional Environment with Borehole Imaging and Core: A Case Study from Eastern Offshore India
Authors C. Shrivastva, S. Ganguly and Z. KhanEstablishing the depositional sedimentary environment is the most important task for exploration geologists to model the
reservoir heterogeneities. Interpretation of borehole images has been the key to better understanding of the sedimentary
environment in the study area in Krishna-Godavari basin (KG basin) along the east coast of India. The present study aims at
reconstructing sedimentary depositional environment with the help of image logs and cores and other available data set. Data
analysis and integration of borehole images in 9 wells of the study area present a detailed insight into the different
architectural elements of the sedimentary environment envisaged.
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