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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
21 - 40 of 303 results
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Concept of Classified Polymer Flooding Control Extent and Influences on Flooding Effect
Authors S. Zhenbo, Z. Xiaoqin, L. Xia, W. Lijun and M. JingIn oil reservoirs, if sand bodies are interconnected, and the polymer molecules can penetrate, then we regard the porous
volume as swept volume of polymer flooding. But polymer flooding effects are associated with interconnection types of swept
porous volume, which has not been involved in the previous concept of polymer flooding control.
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A State-of-the-Art Permeability Modeling Using Fuzzy Logic in a Heterogeneous Carbonate (An Iranian Carbonate Reservoir Case Study)
Authors M.R. Ghafoori, M. Roostaeian and V.A. SajjadianPermeability is one of the crucial parameters in dynamic
reservoir modeling and simulation. Direct measurement
of permeability through coring and wireline formation
testing is expensive and sometimes fail to achieve. In
recent years, different methodologies have been
introduced to the petroleum geosciences/engineering
descipline to predict permeability from openhole logs.
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Evaluation of Rotary Jetting Tool Application for Matrix Acid Stimulation of Carbonate Reservoir in Southern Area Field of Saudi Arabia
Authors S. Haldar, A.A. Al-Jandal, S.M. Al-Driweesh, S. AlSarakbi and M.A. EspinosaStimulation of oil wells is becoming more and more challenging every year. Wells easy to select are fast diminishing. Today’s
candidate for matrix acid stimulation have high water cut, close oil-water contact, marginal pay zone to stimulate and complex
completion, raising more challenges. Combining coiled tubing pinpoint treatment placement with diversion method is crucial
for such wells. Traditional chemical diversion like gelplug, VES, foam or nitrogen divert treatment fluid in the zone of broad
permeability contrast.
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An Integrated Workflow for Gas Injection EOR and a Successful Application to a Heterogeneous Sandstone Reservoir in the Southern North Sea
Authors N. Nishikiori, K. Sugai, C. Normann, A. Onstein, O. Melberg and T. EilertsenThis study describes an improved engineering workflow to
perform technical evaluation and screening of gas injection
EOR. A successful case study demonstrates how field data,
engineering analysis and simulation are integrated to
precisely model gas injection EOR. This workflow can be
adaptable for any type of reservoir and can be utilized as a
fast-track screening workflow for gas injection EOR.
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Exploratory Well Hits Target Successfully on the 8th Attempt in the Binak Oilfield, North of Persian Gulf
Authors M. Fazaelizadeh, G. Hareland, S.A. Mirhaj, Y. Yousafi, A. Kustamsi and F. ShirkavandIn the Binak oilfield, located in the north of the “Persian Gulf”, seven exploratory wells were attempted to drill to the target,
which is the Khami reservoir at a depth of 5600 m. Due to special conditions and problems, drilling through the formations in
this oilfield was unsuccessful. The main drilling challenges include selecting correct casing depth, borehole instability due to
shale sloughing and severe fluid loss and flow during drilling. These problems resulted in the unsuccessful drilling of seven
exploratory wells. Therefore, the following factors were considered in designing the new exploratory well number eight.
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Selection Criteria for Artificial Lift Technique in Bokor Field
Authors M.A. Wahba, M. Jadid, I.B. Subari, M.N.B. Abu Talib, P. von Pattay and D. SaenzAs production declines and watercut increases, wells are often converted from gas lift to electrical submersible pumps
(ESPs). ESPs are an attractive alternative since they can achieve lower bottom hole flowing pressures. This can accelerate
production and improve recovery.
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Improvements in the Management of Structured and Unstructured Data
Authors M. Garbarini, R.E. Catron and B. PughWe describe business practices and IT tools that we deployed to reduce the time that Engineers and Geoscientists spend
looking for, gaining access to, and manipulating data and information. Various sources have estimated that technical
professionals spend up to 30% of their time searching for data and information. Less well measured, but estimated to be just
as large, is the time spent gaining access to data, moving it into and between technical applications and dealing with data
quality problems. We share our analyses and classification of how this time is being spent.
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Hydrajet (Abrasive) Perforating Can Improve Success of Fracturing Stimulations
Authors B.W. McDaniel, J.B. Surjaatmadja and L.E. East Jr.At least as early as the 1960s, many well operators knew that hydrajetting perforations, or slots through cemented casing,
could often “bail-out” a problem well that otherwise seemed completely resistant to hydraulic-fracturing attempts. However,
for more than 50 years of fracturing applications, there was insufficient demand for this process to make it a commodity
service, especially before the advent of coiled tubing (CT) services in the 1980s. With very sporadic use, this type of well
service was costly because abrasive mixing and high-pressure pumping were both needed, and efficiencies of repetitive use
were not developed. Conventional explosive shape-charge perforating was usually lower-cost and seemed sufficient for most
wells.
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First-Ever Vessel-Based Large-Scale Propped Fracturing Treatment in a Tight, Deep, Hot Formation in Bohai Bay Yields Multiple Fold Oil Production Increase
More LessBohai Oilfield, CNOOC's offshore oilfield in northern China’s Bohai Sea, is China’s third largest oilfield in terms of oil &
gas production. Most of the offshore shallow, high permeability reservoirs have been developed since early eighties.
Recently, attention has been shifted to the deep, and low permeability reservoirs in the offshore Bohai Bay area.
The BoZhong (BZ) field, an important petroleum district in the Bozhong Depression, has a complex history of structural and
depositional evolution. The Shahejie (SHJ) reservoir shows general characteristics of deep (~13,000ft), low to medium
permeability; light crude; high temperatures; and overly pressured. The natural flow capacity of the formation without
stimulation is around 60–190 BOPD, at a high drawdown pressure of 1,500 psi.
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Fractured Basement Characterization from Multi-Attributes Guided Integrated Continuous Fracture Modeling
Authors M. Lefranc and A. CarrillatThis paper demonstrates an integrated approach to
conditioning models for fractured basement reservoirs
(granite) through application of Continuous Fracture
Modelling (CFM). The approach is built on two main steps:
1) the interpretation and analysis of FMI, log and core data
which provide high vertical resolution information for a
limited number of locations and, 2) the prediction of the
fracture intensity in the inter-well space.
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The HR Group as a Strategic Business Partner, A How to Case Study
Authors J.F. O‘Callaghan and A.A.A. Al-BannayAs part of its 2020 strategy, a major Middle East oil company is expected to face significant employment challenges in its
heavy oil and gas businesses due to competiveness within global recruitment markets. Its HR Group is forging a strategic
business partnership role with management and employees and incorporating this concept into its new strategy.
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Early Bed Boundary Detection While Drilling - Testing and Application of a Bit Resistivity Device
Authors A. Hartmann, M. Gorek, C. Fulda and K. KrafEarly detection of a change in formation is often key to making safe and efficient decisions while drilling. Where sudden
changes in pore pressure or wellbore stability relating to lithology are expected, reducing bottomhole assembly (BHA)
penetration into these zones allows either changes to mud parameters or casing seat selection to be made with reduced risk.
Where reservoirs are intercepted, early reservoir detection offers the chance to maximize the productive interval by placing
the casing the top of the reservoir, which is often most important for production. It also allows to perform conventional
coring instead of bypass coring or to change the mud system to avoid damge of the reservoir.
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4D Seismic in Carbonates: From Rock Physics to Field Examples
We have carried out 4D seismic research on two giant carbonate fields in Abu Dhabi, UAE, employing an integrated
approach. Our work process started from fundamental rock physics analysis. The Xu-White rock physics model, originally
designed for clastic rocks, was extended to carbonates. With this model, we characterized the reservoir interval by different
(geophysical) pore types, related them to petrophysical (sedimentalogical) pore types, and performed log conditioning to
improve well to seismic ties. Laboratory ultrasonic measurements of core plugs and log analysis were conducted in
combination with the rock physics model to examine the fluid and pressure sensitivities.
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Novel Signal Enhancement Approaches and Advanced Seismic Imaging as Applied to a Land 3D Seismic Survey
Authors J.M. Reilly, P. Traynin, R. Neelamani, D. Hinkley, G. Skeith, P.D. Silitonga and S. ChackoRecent advances in understanding the physics of surface waves, coupled with innovative transform methods, can improve
land seismic data quality sufficiently to justify the application of more advanced imaging algorithms. This paper presents the
results of an effort to improve the imaging of an Oligo-Miocene isolated carbonate platform in a land seismic acquisition
setting.
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Origins and Deep Water Exploration Potential of Natural Gases in the Offshore South China Sea
More LessMore than ten gas pools in the shallow water region of the Pearl River Mouth (PRM) Basin and the Qiongdongnan (QDN)
Basin, the Offshore South China Sea have been discovered since 1983. Gases produced from QDN Basin are characterized by
high contents of benzene and toluene and relatively heavy delta13C2 values (-25- -27 permil), and the associated condensates
by high abundance of bicadinanes and oleanane, which indicate a good correlation with the coal-bearing sequence of the
Oligocene Yacheng Formation in the Basin.
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Theory and Application of Integrated Pore Pressure Prediction in Deepwater Exploration
By A.L. LiawAn integrated pore pressure analysis technique has been applied to reduce the uncertainty of risks in exploration prospects
in deepwater Gulf of Mexico, West Africa, and offshore Brazil. Pre-drill predictions of pore pressure related attributes
have not only enhanced the success of exploration programs, but also have optimized the design of deepwater drilling
programs. The pore pressure analysis technique is based on the integration of 3D high resolution and high density velocity
field derived from seismic pre-stack migration gathers and acoustic impedance inverted from a calibrated seismic
migration volume. Case studies have revealed that 75% of pre-drill predictions, using 3D high resolution seismic
velocities, fall within 1 ppg accuracy. In conjunction with the application of real-time analyses, we have further improved
prediction accuracies.
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The State of Optimum Value Testing - The Vision and the Reality
Authors H. Elshahawi, R.H. Hite and M.P. HowsSince the turn of the century, Shell has had a vision that Optimal Value Testing (OVT) will replace conventional drill stem
tests for in-situ measurement of dynamic reservoir properties such as permeability and drainage volume. The term OVT
refers to as any testing method that yields fit-for-purpose results at the lowest cost and HSE impact.
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The Potential of Compressed Natural Gas Transport in Asia
Authors X. Wang and M. Marongiu-PorcuNatural gas use is expected to increase dramatically in the world over the next two decades, especially in the two fastest
growing countries in Asia: China and India. Japan is already greatly dependent on natural gas. In connecting sources with
markets, natural gas is transported with two well-established technologies: 70 percent by pipeline and 30 percent by liquefied
natural gas (LNG). Pipelines traversing land masses, when feasible, are the obvious option. However, offshore pipelines have
a distance limit and a terrain restriction. LNG facilities (both the liquefaction process at the source and the re-gasification
process at the receiving end) are expensive to construct and the entire process is complicated, costly, and energy wasteful. It
is applicable for long haul sea distances and large volumes of gas.
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Integrated Modeling of Fractured Low Permeability Reservoir, Sangonghe Formation, Baolang Oilfield, Northwest China
Authors F. Zhou, G. Yao, G. Wang, O.D. Orodu and Q. YangThis paper integrated Flow Zone (FZ), single sandstone sequence, with the study of fracture, and gave a fine characterization
and modeling of fractured low permeability reservoir. It pointed out that calculating the porosity and permeability for low
permeability reservoir based on FZ and building the 3D discrete fracture network (DFN) distribution model integrated with
the static fracture character and the density distribution of high angle fracture (HAF) and low angle fracture (LAF) are
efficient methods for fractured low permeability reservoir.
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Bioremediation Techniques for Oil Sludge Treatment at the Arun Field
Authors S. Radhi, N.S Khanim and A.D. SyaktiSlurry sludge that contains hydrocarbons and heavy metals compounds were generated from drilling activities and production
processes in the Arun Field in North Aceh. The sludge was categorized as a hazardous and toxic waste, and it required special
handling and treatment.
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