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IPTC 2012:International Petroleum Technology Conference
- Conference date: 07 Feb 2012 - 09 Feb 2012
- Location: Bangkok, Thailand
- Published: 07 February 2012
81 - 100 of 358 results
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Recent Step-out Exploration in the Greater Sirikit East Area, Sirikit Oil Field, Onshore Thailand, a Model for Overlooked Area
Greater Sirikit East (GSE) Field represents recent step-out exploration success in the east of Sirikit Main Field. Sirikit Main
was discovered in 1981 and remains the largest field in the basin, with surrounding smaller fields: Sirikit West (northwest,
1983), Thap Raet (north, 1988), Sirikit East (northeast, 1992) and Nong Jig (southwest, 1999).
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Nam Con Son Basin Analysis: The Old and New
By Kevin MeyerRecent drilling results and activity has created a renewed interest in the Nam Con Son basin in Southern offshore Vietnam.
This renewed interest follows several phases of exploration in the Nam Con Son Basin in which initial drilling and data
collection allowed for the definition of a tectonic and stratigraphic definition of the Nam Con Son Basin.
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An Effective Approach for Automatic Rock-Typing and Calibration Using Single-Well Models
Authors Sachin Sharma, Alexis Carrillat and Torsten FriedelRock-typing is an essential ingredient for any static or dynamic modeling; it is the link between depo- or lithofacies and their
pore geometries and the fluid flow properties. The rock types determine porosity-permeability transforms and initial water
saturation in static models and govern properties that directly impact fluid flow behavior (such as relative permeabilities or
rock compressibilities). With this in mind, they are guiding elements for most decisions on well and infill-well placement
today, at least wherever reservoir models are used.
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Predicting Marginal Marine Reservoir Architecture: Examples from Asian Shoreline Systems
Authors Boyan K. Vakarelov and R. Bruce AinsworthSequence stratigraphy is often used to link coastal depositional style to specific systems tracts. Even though such an approach
has merit, it is argued that other variables, such as basin setting, distance from a shelf edge, local physiography and shoreline
shape are more useful for predicting shoreline architecture, especially when it comes to the effects of waves and tides. This is
because shorelines in different systems tracts can be exposed to similar combinations of processes, which have a first order
dependence on the shape of the marine basin fronting them.
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A Case Study of Pre-stack Depth Migration Application over a Salt Dome Area
Authors Hongjun Zhang, Junbiao Ping, Feng Yang, Junbiao Ping, Qi He and Hongtao ChenThere is a variety of salt domes with complex shapes in our work area. As high-velocity geologic units, subsurface salt
domes bring about a series of problems for seismic data processing in time domain and interpretation in the seismic
exploration. For example, false images of subsalt structure, abnormal stack velocity field, and difficult time-depth conversion
of structural mapping, are all caused by complex wave-fields from irregular salt domes.
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Detection of Cross-flows Behind Casing before Perforations, and Cement Isolation Diagnosis Based on Temperature Analysis (TUNU field, Indonesia)
More LessIn multilayered depleted gas fields, cement isolation is essential to avoid water or gas cross-flows
behind casing, and possible subsequent detrimental effects after perforation, which usually
require long and expensive remedial actions.
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A Novel Method for Life-Cycle Production Performance Forecast Based on Dynamic Analogs
More LessConventional production performance forecast by reservoir simulation is very time-consuming. Another major drawback of
such an approach is the huge uncertainties in the forecast results owing to data limitation, especially at the field appraisal and
development planning stages. As an efficient alternative to reservoir simulation, a novel life-cycle performance forecast
method is developed which integrates dynamic information from analog reservoirs with decline curve analysis. The output of
the forecast provides essential information for field development planning.
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Assessment of Undiscovered Conventional Oil and Gas Resources of Thailand
More LessThe U.S. Geological Survey estimated mean volumes of 1.6 billion barrels of undiscovered
conventional oil and 17 trillion cubic feet of undiscovered conventional natural gas in three geologic
provinces of Thailand using a geology-based methodology. Most of the undiscovered conventional oil
and gas resource is estimated to be in the offshore Thai Basin Province.
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Sichuan Basin Shale Gas, China: Exploring the Lower Silurian Longmaxi Shale
Authors Claudia J. Hackbarth, Danny Soo and Navpreet SinghThe Peoples Republic of China (PRC) has set ambitious targets to increase its domestic supply of clean-burning
natural gas.
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The Path to a Real-Time Optimized, Integrated Gas Network - Smart Fields Applied
Authors D. Göbel, R. Cramer, Ron Briers, Jan De Boer, Frank Lai and M. HooimeijerThis paper describes the successful application of Real-Time Optimization by Shell Malaysia E&P on the
Integrated Gas Production System in Sarawak, implementing models for real-time monitoring and optimization of
wells and facilities on a gas production network spanning more than 100 wells on more than 40 platforms across
a number of different Production Sharing Contracts. We highlight how Digital Oil Field practices enable fieldbased
data to be turned into information, support decision making, and lead to actions that ensure production is
optimized continuously.
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Stratigraphic Traps in Distal Lacustrine Delta, A Case History from Greater Sirikit East Field, Phitsanulok Basin, Central Plain, Thailand
Greater Sirikit East oil and gas field is located just to the east of the Sirikit Main field in the S1 concession, Phitsanulok
Basin, Thailand. The main reservoirs are fluvio-deltaic Lan Krabu formation members of K, L and M that interfinger with the
open lacustrine Chumsaeng formation. Hydrocarbon traps in the field can be grouped into structural and stratigraphic traps.
Numerous small structural closures have been proven to be hydrocarbon bearing. Delineation and development well drillings
have also proven the working stratigraphic trap system in the absence of structural trap. In some structural closure, observed
hydrocarbon column heights from well data exceed their relevant structural spill point, invoking the larger working
stratigraphic trap system responsible for the hydrocarbon accumulation.
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PP & PS Wave Image and Joint Stochastic Prestack Inversion in the Same PP Time Scale Domain
Authors Zhiwen Deng, Mrinal K. Sen, Uxin Wang and Xuming BaiConverted wave (Sv-wave) velocity analysis approach is always a difficult problem in 3C seismic data processing.
Conventional 3C velocity and image are generally computed in different time scales; PP wave is processed with PP time scale
and PS wave with PS time scale. PP and PS wave data are basically processed separately causing errors in horizon calibration
between PP and PS waves.
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Effectiveness of Digital Rock Physical Laboratories In Characterisation Of Heterogenous And Complex Carbonates- A Synthesis
Authors Prasanta Kumar Mishra and Bibi Hussain AkbarThe digital rock physics laboratories following the CT and micro CT scan techniques are
in forefront and claim to carry out an accurate pore to core scale characterization of
carbonate rocks with minimum possible time lapse.
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Constrained Anisotropy Estimation for PSDM Velocity Model Building and Refinement
Authors Maurizio Ferla, Patrizia Cibin, Erika Gentile, Emanuela Battistutti and Leutscher JohanIn this study a new stable and geologically plausible anisotropic inversion methodology is proposed for building and refining
the velocity model for pre-stack depth migration workflow (PSDM). We describe an unconventional constrained inversion
technique for the evaluation of the interval Thomsen anisotropic parameters ε and δ.
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Feasibility of an EOR MicroPilot for Low-Salinity Water Flooding
Authors Morten Kristensen, Cosan Ayan, Raghu Ramamoorthy and Koksal CigOver the past decade low-salinity water flooding has emerged as a viable enhanced oil recovery (EOR) method. Both
laboratory tests and field trials have shown that injecting chemically modified water instead of seawater can lead to
incremental oil recoveries. Although much research has been conducted, the governing physical and chemical mechanisms for
this increase in recovery are not yet agreed upon, but are generally believed to involve some form of interaction between the
rock, oil, and brine leading to changes in wettability, oil/water interfacial tension, or both.
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Prediction of Oil and Gas Reservoir Properties using Support Vector Machines
Authors Fatai Anifowose, AbdAzeem Ewenla and Safiriyu EludioraArtificial Intelligence techniques have been used in petroleum engineering to predict various reservoir properties such as
porosity, permeability, water saturation, lithofacie and wellbore stability. The most extensively used of these techniques is
Artificial Neural Networks (ANN). More recent techniques such as Support Vector Machines (SVM) have featured in the
literature with better performance indices. However, SVM has not been widely embraced in petroleum engineering as a
possibly better alternative to ANN. ANN has been reported to have a lot of limitations such as its lack of global optima. On the
other hand, SVM has been introduced as a generalization of the Tikhonov Regularization procedure that ensures its global
optima and offers ease of training.
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Virtual Measurement Value During Start-up of Major Offshore Projects
Authors R. Cramer, N. Griffiths, P. Kinghorn, D. Schotanus, John Brutz and Klaus MuellerHow can you effectively manage the wells if you do not continuously know what they are producing? This is even more the case when the wells are being
started up for the first time.
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Multiples, Diffractions and Diffracted Multiples in the South China Sea: How Dense Does Our Acquisition Geometry Need to Be?
Authors Rosemary K Quinn and Lynn ComeauxMultiples, diffractions and their multiples are a common feature of marine seismic data. In some areas of the South China Sea,
the residual multiples are a significant problem as they are coincident with the reservoir section. In such cases, we need to
devote additional resources to further attenuate the multiples, particularly the diffracted multiples. The challenge is to assess
how much effort is sufficient and whether that effort is required during data acquisition, data processing, or both?
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Malaysia East Belumut Field: Doubling a Marginal Field's Reserves by Understanding the Application of "Enabling" Technology
Authors Ong Tee Suan, Mark Lambert, Barry Goodin and Mohamad OthmanSuccessful application of enabling technologies in the phased development of Malaysia’s marginal East Belumut field
resulted in reserves doubling between Field Development approval in 2006 and post development in 2010. The field
development has multiple challenges given the thin-oil column (46 feet) entirely within the transition zone, unfavorable crude
quality, a large gas-cap and extensive bottom water, a large but low relief structure, and a shallow poorly consolidated
sandstone reservoir.
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Karst Modeling of a Miocene Carbonate Build-Up in Central Luconia, SE Asia: Challenges in Seismic Characterisation and Geological Model Building
Authors Elvis Chung, Ting King King and Omar AlJaaidiThe development of the Central Luconia carbonate build-ups were strongly influenced by the interplay between eustatic sealevel
and basinal tectonics. The Alpha field addressed here is one of the seismically best imaged isolated carbonate platforms
in Central Luconia and dendritic features, interpreted as karst, were found to be very prominent throughout the field. Karst is a
diagenetic facies, an overprint in sub-aerially exposed carbonate bodies produced and controlled by dissolution and migration
of calcium carbonate in meteoric waters.
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