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IPTC 2009: International Petroleum Technology Conference
- Conference date: 07 Dec 2009 - 09 Dec 2009
- Location: Doha, Qatar
- Published: 07 December 2009
81 - 100 of 370 results
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Commitment to Coax Subtleties from Seismic by means of an Intelligent Integrated Approach—A Case Study
Authors A.B. Ibrahim, J.R. Gaither, I. Abdullah, V.W.T. Kong, A. Carrillat, N.M. Hernandez and M.R.A. RahmanMuch information is contained in the seismic reflectivity signal. The discernment between signal
and noise, and the reduction of ambiguity of these signals is a major technical challenge.
Interpreting lithology solely on normal seismic reflection strength has been well recognized to
have pitfalls. This paper sets a case history of commitment by all parties involved to coax the
subtle relevant data out from the seismic signals by means of an intelligent integrated approach.
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Staged Design of an EOR Pilot
Authors B.L. Adibhatla and R.C. WattenbargerDue to the complexity and uncertainty associated with most enhanced oil recovery (EOR) processes, a small-scale pilot is often
needed to demonstrate the successful application of an EOR process within a specific reservoir prior to wider commercial
implementation.
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Water Sustainability and the Petroleum Industry
Authors S. Adham and J. Minier-MatarWater is becoming an increasingly important issue in the world and particularly for the petroleum industry. The purpose of this
paper is to outline some of the challenges before the petroleum industry and their need to play a key role to ensure water
sustainability.
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Managing Drilling Vibrations Through BHA Design Optimization
Authors J.R. Bailey and S.M. RemmertSignificant performance improvement has been achieved by successfully managing drilling vibrations through bottomhole
assembly (BHA) redesign. This effort has resulted in increased footage per day and reduced tool damage. Prior literature has
described improvements in operating practices to manage vibrations(1,2) as a key component of this ROP (rate of penetration)
management process. In a parallel work activity, the redesign efforts have provided additional performance improvements of
approximately 36% in one drilling application. Dynamic modeling of the BHA has identified the key design changes leading
to these improvements. The redesigned BHA has lower calculated vibration indices than the standard BHA.
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ExxonMobil Production Company Gas Management System
Authors L.E. Pedrick, P.E. Symes and D. MillerThe paper will provide an overview of the system developed and adopted by ExxonMobil for managing the risks to
sustained gas delivery in our upstream operations. The paper will cover the guiding principles, the breadth of scope,
key elements and processes, and the interface coordination and workflows associated with the Gas Management
System (GMS). It will also discuss critical success factors for effective implementation and lessons learned.
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Water Injection Monitoring Techniques For Minagish Oolite Reservoir In West Kuwait
Authors O.P. Das, M. Aslam, R. Bahuguna, K. Al-Enezi, M. Al-Shatti and Y.T. Al-Rashidi TahaniWater flooding is the most successful and widely used
process for effective pressure maintenance and enhancing
the oil recovery because water is widely available and
inexpensive relative to other fluids, easy to inject, and
highly efficient in displacing oil. For water floods, through
continuous surveillance plan, reservoir monitoring and
water front tracking results in improving sweep efficiency
and enhancing the overall oil recovery.
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Innovative Mercaptan Scavangers: First Field Application
Authors C. Passucci, G. Grazioli and C. CarnianiMercaptans are naturally occurring components of sour crude oil and natural gas condensate. When present in appreciable
concentrations, they generate a very disagrenable smell witch can be a nuisance to operators and to surrounding communities.
Regulatory authorities aften require that mercaptan odors be controlled. A practical example of that has occurred to a gas
field located in southern Italy which was suffering nuisance odor problems originating from a gas well whose fluid contained
over 500 ppm total mercaptans.
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Planning, Acquisition and Processing of the first industrial 3D “Circular Shooting” Seismic Survey
Authors M. Buia, E. Tozzi and L. MapelliConventional offshore 3D acquisition is still being performed mainly with narrow azimuth streamer configurations, even in
structurally complex areas. Attempt at breaking this paradigm have been recently made by the industry through the successful
acquisition of some unconventional “Multi-Azimuth” (MAZ), “Wide-Azimith” (WAZ) and “Rich Azimuth” (RAZ) marine
surveys.
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Understanding of Mercury Corrosion Attack on Stainless Steel Material at Gas Well: Case Study
Authors A. Nengkoda, H. Reerink, Z. Hinai, I. Prasetyo and S. PurwonoThe corrosion resistance of stainless steel is dependent on a hard, tough, chromium oxide film that is selfrepairing
under oxidizing conditions. This oxide film is not self-repairing in reducing or neutral conditions. If the
film is disturbed, corrosion will result.
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Data Management Acceleration Project: A Case Study in Doing it Right!
Authors J.N. Perrone, M.A. Priest and F. AliThis paper provides details on the formulation and execution of the RasGas Company Limited (RasGas) Petroleum
Engineering Department’s “Data Management Acceleration Project”, also known as DMX.
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Deployment Strategies to Reduce Risk in the Acquisition of Formation Evaluation Data
By R. KuchinskiEffective reservoir management requires sound decision making that is based on formation evaluation data acquired
during all stages of the life of the well. Without this data, reservoir understanding is compromised, which can impact
long term well productivity. Given the increasing challenges of acquiring data in today's geometrically complex wells,
new methods of data acquisition are constantly being developed and refined. This has led to a new area of oilfield
innovation called conveyance. This paper is an analysis of the risks associated with the acquisition of formation
evaluation data.
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Integrated Approach to Imaging and Pore Pressure Prediction in the Nile Delta
Authors C. Andreoletti, N. Bienati, G. Capponi and N. BellucciThe Nile Delta area is well known for its geological and geophysical complexity due to:
1. the presence of gas clouds, chimneys, channels and growth faults in the Pliocene/Late Pliocene series;
2. the variability in terms of lithology, structure and thickness of the Messinian formations that cause a highly irregular and
laterally varying velocity structure;
3. the low SNR of seismic data in the pre-Messinian series caused by the above described irregularities combined with the
contamination of seismic data due to the presence of multiples.
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High Permeability Streaks Characterisations in Middle East Carbonate Reservoirs
Authors P. Emmanuelle, C. Maza, A. Virgone, F. Gisquet, C. Fraisse and C. Pabian-GoyhenecheOne of the main difficulties for modeling and producing carbonate rock oil reservoir in the Middle East is linked to the
fact that these reservoirs often display numerous and variable heterogeneities, ranging from plug micro-scale
heterogeneity (texture, pore types, cementation, ...) to field mega-scale heterogeneity (geometries and facies,
fracturation and faulting). Because these heterogeneities often result in significant variations in permeability and
saturation, and hence in productivity it is absolutely necessary to capture all of these scales of heterogeneities and
understand their origin. Various factors can be implied alone or combined between them: depositional environment,
sequence stratigraphy, early or late diagenetic overprint and fracturation scheme.
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Advances in Wireline Conveyed In-situ Reservoir Stress Testing Measurements: Case Studies From the Sultanate of Oman
Authors K. Cig, A.S. Al Mandhari, S.M. El Msallati and L. QobiIn-situ reservoir stress measurements are essential input to a wide variety of the production and injection applications of
reservoirs. Most of the reservoirs in this article require water injection to maximize recovery without breaking the matrices
unintentionally. In some cases, it is also important to create a controlled fracture growth in a formation unit without breaking
bordering barriers or zones. The main purpose of the in-situ reservoir stress testing of the case studies in this article is to
calculate the minimum stress to improve the reservoir management plans for well placement, production, injection and
fracturing processes.
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High Permeability Layers in Carbonates: Innovative 3D modeling Approach in Lower Cretaceous Reservoirs, Offshore Abu Dhabi
Authors P. Ruelland and H. Bu HindiHigh Permeability layers are a common feature of most carbonate series, and contribute to heterogeneous
sweeps and early breakthroughs when injecting gas or water in an oil reservoir.
The innovative workflow proposed to model the high permeability layers, on the basis of strong constraints from
geological data and concepts, enables to be more predictive on the dynamic behaviour of the reservoir. It also
enables a better selection of the most adapted recovery mechanism and a better strategy for optimizing the
positioning of future perforations.
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Pressure-Pressure Deconvolution Analysis of Multiwell Interference and Interval Pressure Transient Tests
Authors M. Onur, C. Ayan and F.J. KuchukFollowing the introduction of pressure-rate (p-r) deconvolution techniques in 1960s, they have been investigated continually
during the last two decades. Now most p-r deconvolution techniques are stable and have been used increasingly for analysis
of pressure transient tests. A successful p-r deconvolution can transform a multirate pressure transient response to an
equivalent constant-rate drawdown response for the entire test duration. It can help identify/confirm interpreted reservoir
models and eliminates multirate superposition effects. However, the flow rate is usually not directly and continuously
measured in conventional pressure-transient well tests, although it is measured reasonably accurately during interval pressure
transient tests (IPTT) conducted by wireline formation testers (WFTs). Nevertheless, large uncertainties or errors associated
with inaccurate rate data usually hinder the successful use of p-r deconvolution methods.
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Application of Horizontal Wells with Multiple Hydraulic Fractures for the Development of Low Permeability Oil Reservoir in Western Siberia
Authors E. Sayapov, I.R. Diyashev and A.V. BrovchukLow permeability reservoirs attract increased attention from most oil companies due to increased demand and limited
reserves in the conventional reservoirs. Most scientists and leaders of the petroleum business agree that worldwide
production decline from conventional hydrocarbons will have to be compensated by the development of low permeability oil
and gas reserves to satisfy growing demand.
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Pearl GTL Offshore Materials, Corrosion, Chemicals and Integrity - Challenges and Solutions
Authors S. McFarland, R. Unsal and H. PitPEARL GTL (Gas To Liquids) 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 at Ras Laffan, producing 140,000 barrels per day of
GTL products and 120,000 barrels per day of natural gas liquids.
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Surface Development Aspects of Alkali-Surfactant-Polymer (ASP) Flooding
More LessThis paper highlights the differences between an Alkali-Surfactant-Polymer (ASP) Flood project and traditional Exploration
and Production (E+P) developments from an Engineering and Operations perspective. It lists the common problems
encountered, drawing on published and unpublished sources, and describes their root causes. It proposes strategies for
avoiding the problems in future ASP flood applications.
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A Proven Approach to Mitigating Drilling Vibration Problems in Offshore Western Australia
Authors A.D. Craig, C.M. Hanley, B. McFarland, D. Shearer and P. KingNOV Downhole has developed a new approach to systematically model the potential for vibration in a given drilling
application using computational and analytical methods. This approach utilizes a custom set of software tools to evaluate the
drillstring natural frequencies.
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