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IOR 2005 - 13th European Symposium on Improved Oil Recovery
- Conference date: 25 Apr 2005 - 27 Apr 2005
- Location: Budapest, Hungary
- Published: 25 April 2005
41 - 60 of 80 results
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CO2 Injection for IOR and Storage – Opportunities and Challenges for the North Sea
Authors S.R. Ren, F. Gozalpour and B. TohidiD14 CO2 INJECTION FOR IOR AND STORAGE – OPPORTUNITIES AND CHALLENGES FOR THE NORTH SEA Abstract 1 CO2 injection for improved oil recovery (IOR) has been extensively investigated and is commercially pursued in many onshore fields around the world. Concerns over greenhouse gas emissions are leading to the investigation and realisation of its potential as a carbon storage method in recent years. With right reservoir conditions injection of CO2 into oil reservoirs can result in incremental oil recovery and permanent storage of CO2 in geological formation. The North Sea has been considered as a good CO2 storage site for Europe.
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Air Injection in Light-Oil Fractured Reservoirs – A Review of Challenging Reservoir Modelling Aspects
Authors M. Okamoto and B. BourbiauxD15 A REVIEW OF THE CHALLENGING RESERVOIR ENGINEERING ASPECTS OF MODELING THE RECOVERY FROM A LIGHT OIL FRACTURED RESERVOIR BY AIR INJECTION Abstract 1 MARURO OKAMOTO AND BERNARD BOURBIAUX INSTITUT FRANÇAIS DU PÉTROLE (IFP) 1-4 Avenue de Bois Préau 92852 Rueil Malmaison cedex France Although often considered as a thermal recovery method concerning heavy oil reservoirs air injection can be an economical IOR option for light oil reservoirs. Actually unlike other gas injection processes involving a marketable or synthetic gas the air injection method offers the main advantage of an unlimited availability for any field. However especially for fractured reservoirs
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A Review of the Challenging Reservoir Engineering Aspects of Modeling the Recovery from a Light Oil, Fractured Reservoir by Air Injection
Authors A.H. Bentaher, M. Greaves and R.R. RathboneD16 AIR INJECTION INTO LIGHT OIL RESERVOIRS – OXIDATION KINETICS AND SIMULATION AUTHOR(S) Abstract 1 M. GREAVES A. H. BENTAHER AND R. R. RATHBONE Address Improved Oil Recovery Group Department of Chemical Engineering University of Bath Bath BA2 7AY England Air injection into deep light oil reservoirs which have previously been water flooded is a very promising IOR technology. The process of air injection is considered a cheaper injectant gas alternative to using hydrocarbon gas carbon dioxide or nitrogen because it is freely available. The process can also be made sustainable and clean if the produced carbon dioxide is reinjected
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Problems and Prospects of Gas Methods for Enhancing the Reservoir Hydrocarbon Recovery
More LessD17 PROBLEMS AND PROSPECTS OF GAS METHODS FOR ENHANCING THE RESERVOIR HYDROCARBON RECOVERY Abstract 1 13 th European Symposium on Improved Oil Recovery — Budapest Hungary 25 - 27 April 2005 R.M. TER-SARKISOV VNIIGAZ Razvilka Leninsky District Moscow Region 142717 Russia The paper presents natural and man-caused factors that govern the existence and formation of hard-to-extract hydrocarbon (HC) reserves in the process of their development. A conceptual approach to the problem of enhancing gas condensate recovery by involving hard-to-extract HC reserves into active development at various stages of their recovery from reservoir is described. It was shown that a formed
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Fluid Flow Behaviour of Gas-Condensate and Near-Miscible Fluids at the Pore Scale
Authors C.A. Grattoni and R.A. DaweD18 Fluid Flow Behaviour of Gas-Condensate and Near-Miscible Fluids at the Pore Scale Abstract 1 RICHARD A. DAWE 1 AND CARLOS A. GRATTONI 2 1 Department of Chemical Engineering University of West Indies St. Augustine Trinidad 2 Department of Earth Science and Engineering Imperial College London SW7 2BP UK Retrograde condensate reservoir behaviour is complex with much of the detailed mechanisms of the multiphase fluid transport and mass transfer between the phases within the porous matrix still speculative. Data measurements in the laboratory are difficult because the precise experimental requirements are unknown. What is certain is that gas production leads
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Investigation of Production Potential of Hosszúpályi-South Gasfield Supposing Different Driving Mechanism – Case Study
By Z. BihariD19 INVESTIGATION OF PRODUCTION POTENTIAL OF THE„HOSSZÚPÁLYI-SOUTH” GASFIELD SUPPOSING DIFFERENT DRIVING MECHANISMS. CASE STUDY 1 Abstract As a demand for natural gas in the world hence in Hungary also is increasing from year to year the development of more gasfields becomes a necessity. To achieve maximum recovery careful planning is needed as early as the pre-production phase. A full field simulation model (included reservoir – well – surface model) was built for Hosszúpályi-South gasfield to study uncertainties and to investigate the optimum development option for the twelve reservoirs which are to be developed. We demonstrate through the example of Hosszúpályi-South
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A Study of IOR by CO2 Injection in the Gullfaks Field, Offshore Norway
Authors H. Agustsson and G.H. GrinestafD21 A Study of IOR by CO2 Injection in the Gullfaks Field Offshore Norway H. Agustsson SPE STATOIL ASA G.H. Grinestaff SPE PETROTEL INC. Copyright 2004 Society of Petroleum Engineers Inc. This paper was prepared for presentation at the 2004 SPE/DOE Fourteenth Symposium on Improved Oil Recovery held in Tulsa Oklahoma U.S.A. 17–21 April 2004. This paper was selected for presentation by an SPE Program Committee following review of information contained in a proposal submitted by the author(s). Contents of the paper as presented have not been reviewed by the Society of Petroleum Engineers and are subject to correction by
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Numerical Simulation of Tertiary CO2 Injection of Ivanic Oil Field, Croatia
Authors D. Domitrovic, S. Šunjerga and J. Jelic-BaltaD22 Numerical Simulation of Tertiary CO2 Injection at Ivanić Oil Field Croatia D. Domitrović SPE S. Šunjerga and J. Jelić-Balta; INA-Naftaplin Copyright 2004 Society of Petroleum Engineers Inc. This paper was prepared for presentation at the 2004 SPE/DOE Fourteenth Symposium on Improved Oil Recovery held in Tulsa Oklahoma U.S.A. 17–21 April 2004. This paper was selected for presentation by an SPE Program Committee following review of information contained in a proposal submitted by the author(s). Contents of the paper as presented have not been reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The
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Lessons from Trinidad's CO2 Immiscible Pilot Projects 1973-2003
Authors L.J. Mohammed-Singh and K. AshokD23 Lessons From Trinidad’s CO2 Immiscible Pilot Projects 1973-2003 Mohammed-Singh Lorna J. SPE Petrotrin and Singhal Ashok K. SPE Alberta Research Council Copyright 2004 Society of Petroleum Engineers Inc. This paper was prepared for presentation at the 2004 SPE/DOE Fourteenth Symposium on Improved Oil Recovery held in Tulsa Oklahoma U.S.A. 17–21 April 2004. This paper was selected for presentation by an SPE Program Committee following review of information contained in a proposal submitted by the author(s). Contents of the paper as presented have not been reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s).
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EOR by In-Situ Combustion Process in Santhal Field of Cambay Basin – A Case Study (not yet confirmed)
More LessD24 Abstract: 1 SPE Paper Number: 89451 ENHANCED OIL RECOVERY BY IN- SITU COMBUSTION PROCESS IN SANTHAL FIELD OF CAMBAY BASIN MEHSANA GUJARAT INDIA – A CASE STUDY S. K. Chattopadhyay Binay Ram R.N.Bhattacharya and T.K.Das Oil and Natural Gas Corporation Limited Sub-Surface Mehsana Asset Mehsana Gujarat India E-mail: [email protected] In-Situ Combustion Process has been implemented in Santhal field in commercial scale for the last 6 years for enhancing the recovery of heavy oil. The process monitoring is the key factor for ensuring the effectiveness of the method. This paper describes the field practices of ignition well preparation sampling and
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IOR and EOR – Chances for Increase of Oil Production and Recoveries in Existing, Mature Reservoirs
By J. SecenD25 IOR AND EOR – CHANCES FOR INCREASE OF OIL PRODUCTION AND RECOVERIES IN EXISTING MATURE RESERVOIRS Abstract 1 After the application of conventional oil extraction techniques about 2/3 of discovered reserves still remain to be produced. In view of high probability for oil presence and oil price increases investments in research of possibilities for higher recoveries and higher production with application of appropriate IOR and EOR methods are justified naturally under economic conditions. Introduction Let us assume the position of owner or at least oil company director whose main task is renewal of reserves and whose business success is
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Lean Gas Injection into an Extra Light Oil Reservoir – Initial Results and Further Steps (Case Study)
Authors L. Benedek, G. Palásthy, I. Papp, A. Lövei and V. PipiczD26 LEAN GAS INJECTION INTO AN EXTRA LIGHT OIL RESERVOIR- INITIAL RESULTS AND FURTHER STEPS Abstract 1 The Tisza-1 reservoir is situated at the top of the SE part of Algyo field Hungary. The 1700 m depth reservoir has been developed in the uppermost sandstone series showing good reservoir quality. The well sortiered middle and coarse grain sandstone contains extra light crude: the reservoir volume factor is near 4 0 res.bbl/bbl and the oil quality is 63 API. The extreme characteristics of the reservoir oil mean that the intermediate content is above 34 mol%. The production started as early as
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The Modern Trends in Estimation of EOR/IOR Technologies Profitability
By A.Y. KhavkinD27 THE MODERN TRENDS IN ESTIMATION OF EOR/IOR TECHNOLOGIES PROFITABILITY 1 The modern conditions of oil & gas business demand the careful estimation of EOR/IOR technologies profitability. For this estimation it is necessary to calculate the net present value (NPV) of cash flow and internal rate of return (IRR). As tradition NPV and IRR are calculated to the last year when net value (NV) of cash flow more then zero. This year is TM. The paper is contained the new results of the analysis of EOR/IOR technologies profitability. On a basis of two examples of oil field cases with EOR/IOR
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EOR Efficiency – Myth or Reality?
Authors R.R. Ibatullin, R.S. Khisamov, A.I. Frolov, E.D. Podymov, N.A. Lebedev and G.V. RomanovD28 EOR EFFICIENCY – MYTH OR REALITY? Abstract Most of the oil reserves in the Republic of Tatarstan are on the late stage of the 1 development nowadays. For the last 35 years more than 40 enhanced oil recovery methods have been experienced in a wide range of geologic conditions. EOR technology evaluation efficiency depends on the number of parameters. The most important are: Introduction 1. Parameters of the measurement and method of calculation level 2. Parameters of the field conditions and EOR application level. EOR efficiency evaluation is more complicated for late stage development oil field by waterflooding. Commonly
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A Chemical Solution to Increase Oil Production whilst Minimising Water Production Using Polymeric Selective Water Shut Off Gels
Authors J.J. Wylde, G.D.M. Williams, G.D. Williams, H. Frampton and J. MorganD29 A CHEMICAL SOLUTION TO INCREASING OIL PRODUCTION WHILST MINIMISING WATER PRODUCTION USING POLYMERIC SELECTIVE WATER SHUT OFF GELS ABSTRACT 1 Three successive selective water shut off treatments (SWSO) have been performed on a single North Sea well. The target well was a vertical cased perforated and gas lifted producer in a mature high scale potential asset in the UKCS. Reservoir temperature was 121°C and permeability ranged from 100 – 1000 mD. All three treatments were pumped as part of a scale inhibitor squeeze intervention being contained in the final portion of the over flush. In one case water production
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Tampen IOR
Authors A. Hesjedal and S.R. JakobsenD32 TAMPEN IOR Arild Hesjedal and Stein Rune Jakobsen Statoil 1 ABSTRACT The Tampen area (Fig. 1) in the northern North Sea is a mature oil and gas province. The producing fields are either in the decline phase or on plateau. Hence IOR measures become increasingly more time critical. For this reason Statoil established in 2003 a sub-surface organisation to ensure a medium and long term inter-field and inter-disciplinary IOR approach. Statoil has over the last 15 years achieved good results with IOR. Extensive reserve growth is documented in several fields as for instance the Statfjord Gullfaks and Snorre Fields
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Possibility to Improve the Efficiency of Geological Survey in Fractured Granitic Basement
Authors V.E. Korablinov, T.L. Dong, T.V. Hoi, V.K. Utoplennikov and F.A. KireevP01 POSSIBILITY TO IMPROVE THE EFFICIENCY OF GEOLOGICAL SURVEY IN FRACTURED GRANITIC BASEMENT 1 DONG TR.L. HOI TR.V. UTOPLENNIKOV V.K. KORABLINOV V.E. KIREEV F.A. 105 Le Loi Street JV ”Vietsovpetro” Vung Tau Vietnam The paper describes the latest views on crystalline basement structure of Bach Ho oilfield. Pre-Cenozoic basement is broken by tectonic dislocations dividing it into blocks. Zones of dislocations and associated crush zones and intensive fracturing have the best capacitive properties and are mayor oil reservoirs in basement body. Application of tracers established vertical and horizontal hydrodynamic communication of producing zones in crystalline basement. Main oil withdrawals and
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Implementation of SCAL Data for a Capillary Transition Zone
More LessP02 IMPLEMENTATION OF SCAL DATA FOR A CAPILLARY TRANSITION ZONE 1 KRISTINE SPILDO* AND ARNE SKAUGE Centre for Integrated Petroleum Research (CIPR); University of Bergen Allégaten 41 N-5007 Bergen Norway *Corresponding author e-mail: [email protected] Abstract Accurate description of fluid flow in reservoirs dominated by a capillary transition zone requires that special core analysis (SCAL) data is implemented in a correct manner to capture the physics of the flow process. This is particularly important for layered reservoirs with significant permeability contrasts since crossflow between the layers as a result of gravity viscous and capillary forces may strongly influence the sweep efficiency
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Combination of Computed Tomography and Petrography in Reservoir Characterization
Authors K. Remeysen and R. SwennenP04 COMBINATION OF COMPUTED TOMOGRAPHY AND PETROGRAPHY IN RESERVOIR CHARACTERIZATION Abstract 1 Computed tomography (CT) is a non-destructive technique that generates images of slices through a sample and enables the 3D visualization of the internal structure of the object by stacking of slices. The purpose of this study is to develop a process that automatically calculates important reservoir parameters on large sets of plugs (>30) based only on CT images of the scanned samples. The CT images are linked to petrographical information obtained from thin sections and porosity/permeability measurements of the same samples. In this research dolomite and limestone rocks
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A New Genetic Algorithm (GA)-Based Technique to Model the Effects of CO2 Injection on Crude Oil Properties
Authors M.K. Emera and H.K. SarmaP05 A NEW GENETIC ALGORITHM (GA)-BASED TECHNIQUE TO MODEL THE EFFECTS OF CO2 INJECTION ON CRUDE OIL PROPERTIES Abstract 1 A key parameter in a CO2 flooding process is its solubility in the crude oil that results in oil swelling accompanied by a reduction of its viscosity. Where experimental data are not available these physical properties are often determined by using correlations available in the literature. While such correlations are useful for certain conditions they are not applicable in many situations. Simon and Graue correlations for example are limited to 2300 psia and oil viscosity up to 1300 cP and
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