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63rd EAGE Conference & Exhibition
- Conference date: 11 Jun 2001 - 15 Jun 2001
- Location: Amsterdam, Netherlands
- Published: 11 June 2001
101 - 120 of 516 results
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The Use of Distributed Well Temperature Measurements in Waterflood Management
Authors D.J. Element, S.G. Goodyear and C. BlenkinsopIOR-06 THE USE OF DISTRIBUTED WELL TEMPERATURE MEASUREMENTS IN WATERFLOOD MANAGEMENT Abstract 1 Fibre optic sensor technology is being increasingly used by the oil industry. Optical fibres can be permanently installed in a well providing distributed real time temperature data at a one-metre resolution. This paper investigates the link between the temperature distribution in the well and the reservoir performance. A range of fine grid reservoir simulations have been examined to study the temperature changes in a production well over the course of field history aiming to assess the potential value of accurate distributed well temperature data for management of
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Pulse Injection Technology for IOR
Authors A.S. Cable, M.P. Dorey, S.G. Goodyear and A.J. JayasekeraIOR-07 PULSE INJECTION TECHNOLOGY FOR IOR Abstract 1 This study investigated the effects of pressure pulsing on laboratory SCAL measurements using an unconsolidated and consolidated sand refined oils and γ-ray in-situ saturation monitoring (ISSM). Published literature presented at the 1999 European IOR Symposium has suggested that under pulsed flow conditions Darcy’s law may no longer be a valid description of single phase flow and that suppression of viscous fingering may also lead to significant improvement in oil productivity. It was possible to reproduce the published single phase data but our measurements showed that by careful measurement of the flow rate
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Dacion Field Rehabilitation
Authors M. Frorup, S. Adams, N. Charlwood and R. WoodIOR-08 DACION FIELD REHABILITATION Abstract 1 The Dacion field which is located in the eastern Venezuelan basin came on production about 50 years ago. In the early years of development more than 300 wells were drilled and production reached a peak of 45000 bbl/D of oil at about 1958. After that the drilling slowed down and the field was operated on a rate maintenance basis. By 1997 the rate had fallen to approximately 11500 bbl/D. In 1998 Lasmo Venezuela took over operations of the Dacion field after the third Venezuelan licensing round lead by PDVSA and has in two years
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Combination of Enhanced Oil Recovery and Near Zero CO2 Emission Power Plants
Authors C. Schroeder, S. Houyou, P. Illing, P. Mathieu and A. MonjoieIOR-09 COMBINATION OF ENHANCED OIL RECOVERY AND NEAR ZERO CO2 EMISSION POWER PLANTS Abstract 1 This paper addresses two basic today’s issues namely the release of CO2 in the atmosphere from fossil fuels combustion and the depletion of fossil fuels resources. The objective here is double : mitigate the CO2 emissions and increase the resources of fossil fuels. For this purpose it is proposed to combine a new type of power plants designed to control the CO2 releases and the increase of the recovery rate from oil wells by injection of CO2 instead of water. Up to now the production
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Foam Assisted WAG, a Summary of Field Experience at the Snorre Field
Authors A. Skauge, L. Rasmussen, T. Blaker, H. Celius, H.A. Martinsen, I. Svorstøl and M.G. AarraIOR-10 FOAM ASSISTED WAG A SUMMARY OF FIELD EXPERIENCE AT THE SNORRE FIELD Abstract 1 A. SKAUGE 1 L. RASMUSSEN 2 T. BLAKER 2 H. CELIUS 3 H.A. MARTINSEN 3 I. SVORSTØL 2 and M.G. AARRA 1 1 Norsk Hydro ASA 5020 Bergen Norway 2 Norsk Hydro ASA Norway 3 SEPRO Trondheim Norway The Foam Assisted WAG (FAWAG) is a large-scale demonstration of foam for gas mobility control. Foam has been applied at the Snorre field several times first as a production well treatment thereafter in a large scale gas mobility control process. The WAG process on Snorre is limited
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Optimum Rock Bit Program Selection by Integrated Geostatistics and Artificial Intelligence
Authors S. Akin, S. Yilmaz and C. DemirciogluIOR-11 OPTIMUM ROCK BIT PROGRAM SELECTION BY INTEGRATED GEOSTATISTICS AND ARTIFICIAL INTELLIGENCE Abstract 1 Optimum bit selection is one of the important issues in drilling engineering. Usually optimum bit selection is determined by the lowest cost per foot and is a function of bit cost and performance as well as penetration rate. Conventional optimum rock bit selection program involves development of computer programs created from mathematical models along with information from previously drilled wells in the same area. Based on the data gathered on a daily basis for each well drilled the optimum drilling program may be modified and revised
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Physico-Chemical IOR Method for Cyclic Steam Stimulation of High-Viscosity Oil Reservoir
Authors V.A. Kuvshinov, L.K. Altunina and V.V. KuvshinovIOR-12 PHYSICO-CHEMICAL IOR METHOD FOR CYCLIC STEAM STIMULATION OF HIGH- VISCOSITY OIL RESERVOIR Abstract 1 Technology has been developed to improve the efficiency of steam-cyclic treatment of wells in high-viscosity oil fields using chemical reagents. We propose to inject the composition of substances before steam infusion which are capable to form CO2 and ammoniac buffer system in the formation under the influence of steam temperature. In this case the formation of steam tongues (fingers) is realized at a maximum. 2D computer cluster model has been developed for the formation and propagation of steam tongues due to which steam-heated zone is
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Thermal Gas-Dynamical Technologies for Recovery of Viscous Oils - Application Experience
Authors Y.I. Stashok, D.G. Antoniadi, G.G. Gilaev and E.A. LysenkovIOR-13 THERMAL GAS-DYNAMICAL TECHNOLOGIES FOR RECOVERY OF VISCOUS OILS – APPLICATION EXPERIENCE Abstract 1 Presented in the paper are the basic results of pilot-commercial introduction of technological processes for production of viscous oils. The essence of the process lies in cyclic stimulation of bottom-hole formation zone with gas-steam heat-carrier. Pilot-commercial works are performed by oil-producing companies ROSNEFT-Termneft and ROSNEFT-Krasnodarneftegas subsidiaries of the state oil company ROSNEFT. Included in the paper are only the results obtained in Achtyrsko-Bugundyrskoe oil field operated by ROSNEFT-Krasnodarneftegas. Introduction Achtyrsko-Bugundyrskoe oil field has been developed for more than 50 years and now the development is in
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Influence of Collector's Irreversible Deformation on Oil Recovery
Authors N.A. Cheremisin, V.P. Sonich and P.A. EfimovIOR-14 INFLUENCE OF COLLECTOR’S IRREVERSIBLE DEFORMATION ON OIL RECOVERY N.A. CHEREMISIN V.P. SONICH and P.A. EFIMOV Abstract 1 The rocks of hydrocarbon deposits consisting of granular reservoirs and occurring on their historical maximum depth are subject to an additional stress at a reservoir pressure drop during their development. This additional stress leads to not only the elastic but also to the plastic deformation of rocks. Based on the laboratory and theoretical studies results it is shown that the irreversible deformation has a considerable influence on the deposit performance changing not only reservoir properties and a ratio of the fluids saturating
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The Application of Magnetic Liquide Treatment in Oil Fields of West Siberia
Authors O.V. Gavriluk and O.V. GlazkovIOR-15 THE APPLICATION OF MAGNETIC LIQUIDE TREATMENT IN OIL FIELDS OF WEST SIBERIA O.V. GAVRILUK and O.V. GLAZKOV 1 Russian Academy of Sciences Institute of Petroleum Chemistry 3 Akademichesky Avenue 634021 Tomsk Russia The formations of asphalt-resin-paraffin (ARPD) and saline deposits in the tubing string (TS) and in delivery lines are considered as the most urgent problems arising during exploitation of some oil fields in West Siberia. As a consequence – increased equipment failures shortened cleaning (CP) and overhaul (OP) periods of well operation as well as the increased pulling the tubing for cleaning and partial replacement causing production losses
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Current Statue and Prospects of EOR Methods and Oil Production - Intensification in the Fields of OJSC "SURGUTNEFTEGAZ
Authors G.A. Malyshev, V.P. Sonich and D.F. SedachIOR-16 CURRENT STATUE AND PROSPECTS OF EOR METHODS AND OIL PRODUCTION INTENSIFICATION IN THE FIELDS OF OJSC “SURGUTNEFTEGAZ” G.A. MALYSHEV 1 V.P. SONICH 1 and V.F. SEDACH 2 Abstract 1 One of the first priority trends of OJSC Surgutneftegaz's activities is an oil recovery enhancement and oil production intensification. During the period from 1990 to 2000 more than 53 thousand well operations were performed using about 60 various techniques that resulted in production of more than 60 million tons of incremental oil. The annual increase in the volumes of EOR methods application is more than 20% which allowed for planning
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Thermoreversible Polymer Gels Used to Increase Conformance of High-Viscosity Reservoirs by Heat Stimulation
Authors L.K. Altunina and V.A. KuvshinovIOR-17 THERMOREVERSIBLE POLYMER GELS USED TO INCREASE CONFORMANCE OF HIGH- VISCOSITY RESERVOIRS BY HEAT STIMULATION L.K. ALTUNINA and V.A. KUVSHINOV Abstract 1 Physico-chemical rheological and filtration characteristics as well as oil displacing capacity of gel forming thermoreversible polymer solutions with lower critical dissolution point have been studied in the temperature interval ranging from 90 to 250 o C. Such gel forming solutions were prepared based on the system cellulose ethers – carbamide – aqueous phase. Gel forming solutions have been proposed to regulate filtration patterns and to increase conformance of highviscosity oil reservoirs by heat stimulation. The experimental studies were
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Static Perturbation Corrections on Single Sensor Data
Authors G.J.M. Baeten, L. Combee and L. WestIS-1 STATIC PERTURBATION CORRECTIONS ON SINGLE SENSOR DATA G.J.M. BAETEN 1 L. COMBEE 2 and L. WEST 1 Abstract 1 One of the main determining factors for the quality of land seismic data is the accuracy of the static corrections. Static corrections aim at correcting for time shifts between traces which are principally due to near-surface effects. As far as conventional statics techniques are concerned there are two classes of solutions: • Deterministic statics solutions. For example field statics based on upholes and elevation measurements; refraction statics solutions based on first break picking and assumptions about the layered structure of
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Problems in Measuring the Coherent Noise Produced in Near-Surface Scattering
By C. RegoneIS-2 PROBLEMS IN MEASURING THE COHERENT NOISE PRODUCED IN NEAR-SURFACE SCATTERING C. REGONE SUMMARY “Measurement and identification of 3D coherent noise generated from irregular surface carbonates” EAGE 63rd Conference & Technical Exhibition — Amsterdam The Netherlands 11 - 15 June 2001 1 When near-surface scattering produces high levels of coherent noise successful acquisition design requires knowledge of the noise characteristics. Most field tests conducted to measure noise characteristics have serious deficiencies. 2D methods such as walkaway wave tests and CMP stacked sections may sometimes reveal the presence of in-line scattered noise. Often scattered energy arrives from many azimuths with equal
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Application of Two Ground Roll Reduction Techniques to Scattered Ground Roll
Authors J. Meunier and M. BecqueyIS-3 APPLICATION OF TWO GROUND ROLL REDUCTION TECHNIQUES TO SCATTERED GROUND ROLL JULIEN MEUNIER 1 and MARC BECQUEY 2 1 Summary Scattered noise attenuation is one of the most challenging problems of the land seismic method. Even full fold 3D geometry does not provide an effective solution to this problem. This paper shows how 2 ground roll reduction techniques namely 3D FK filtering and Polarisation filtering designed to attenuate radial noise can be adapted to also reduce scattered noise. Introduction Any ground roll reduction technique must take advantage of the difference between Signal (the reflected waves) and Noise (the ground
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Spatially Fixed Patterns for Resolving Large Magnitude Short Wavelength Statics and More
Authors P.I. Pecholcs, L. Lafreniere, S. Hubbell, V. Kozyrev, I. Korotkov and A. ZhukovIS-4 SPATIALLY FIXED PATTERNS FOR RESOLVING LARGE MAGNITUDE SHORT WAVELENGTH STATICS AND MORE Abstract 1 In Saudi Arabia the complex three-dimensional near-surface overburden can introduce large magnitude short-wavelength time delays greater than half a period and wavelengths greater than half an effective spread length. Since automatic residual statics algorithms fail to resolve these statics additional geologic information is needed during the interpretation phase to constrain the near-surface model. These errors are overcome by combining this interpretation phase with a new partial-offset stack domain within a standalone PC-based interpretation system. This interpretation system uses multiple forward and reverse partial-offset stack displays
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Impact of Near Surface Scattering on Seismic Data in Oman
Authors M. Van der Veen and G.C. HermanIS-5 IMPACT OF NEAR SURFACE SCATTERING ON SEISMIC DATA IN OMAN M. VAN DER VEEN 1 and G.C. HERMAN 2 Abstract 1 This paper describes the case history of the "Misfar" 3D seismic survey in Oman that suffered from severe near-surface scattering. In terms of near-surface and subsurface geology this survey is representative for large areas of Oman. Traditional processing methods yielded data of moderate quality. In order to improve the data an inverse scattering method was tried. Results are shown from application of this process as run on a small subset of Misfar. It shows that on individual shot
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Overview of Some Coherent Noise Separation Methods
Authors G.T. Schuster and J. YuIS-006 Abstract OVERVIEW OF SOME COHERENT NOISE SEPARATION METHODS GERARD T. SCHUSTER AND JIANHUA YU University of Utah Salt Lake City Utah 84112 U.S.A Coherent noise in seismic data particularly ground roll PS converted waves multiples and near-source scattering are major problems amplified by near-surface velocity variations. A partial remedy to coherent noise is to separate it from the signal by a suitable transform mute out the noise in the transformed domain and then inverse transform to get the noise-reduced signal. I will review five coherent noise separation methods: FK linear ¡ £ parabolic ¡ £ hyperbolic
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Discriminating Near Surface Effects from Signal via Azimuthal Offset Sampling in Land 3D Acquisition Design and Processing
Authors W. Goodway, D. Cooper, S. Cheadle, R. Kendall and A. HaaseIS-7 DISCRIMINATING NEAR SURFACE EFFECTS FROM SIGNAL VIA AZIMUTHAL OFFSET SAMPLING IN LAND 3D ACQUISITION DESIGN AND PROCESSING 1 W. GOODWAY 1 D. COOPER 1 S. CHEADLE 2 R. KENDALL 2 and A. HAASE 3 1 PanCanadian Petroleum 150-9th Avenue S.W. PO Box 2850 Calgary Alta T2P 2S5 Canada 2 Veritas GeoServices 3 Geo-X Systems INTRODUCTION Ensuring comparable land 3D to 2D quality requires sampling a four dimensional spatial wavefield (shots receivers in x y) at a comparable density to a 2D wavefield in two dimensions (linear shots receivers in x). As this density of shots and receivers is cost
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On the Use of Seismic Velocities in Model Building for Depth Conversion
By T. CouleouIV-1 ON THE USE OF SEISMIC VELOCITIES IN MODEL BUILDING FOR DEPTH CONVERSION Introduction 1 The most common depth conversion method over the last few decades has been to use functions derived from well data. Stacking velocities have traditionally been regarded as less precise and have only been preferred in those cases where lateral velocity variations were dominating. In recent years this has changed. Modern stacking velocity data and methods are of better quality due to improvements in seismic processing and numerical modelling techniques. Today stacking velocity depth conversion is the preferred method in many areas around the world especially
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