METHOD OF SYSTEM CYCLIC DEVELOPMENT OF OIL POOL AT LATE STAGE
FIELD: oil and gas producing industry; applicable in development of oil pools at late stage characterized by nonuniform reservoirs of various nature, particularly, zonal nonuniform reservoirs, reservoirs with formations of various permeability or porous-fractured reservoirs. SUBSTANCE: method includ...
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Main Authors | , , , |
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Format | Patent |
Language | English Russian |
Published |
10.08.2003
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | FIELD: oil and gas producing industry; applicable in development of oil pools at late stage characterized by nonuniform reservoirs of various nature, particularly, zonal nonuniform reservoirs, reservoirs with formations of various permeability or porous-fractured reservoirs. SUBSTANCE: method includes injection of displacing agent into every other or every several injection well; oil withdrawal from every other or every several producing wells; analysis of field-geological data on operation of each well with consideration of all history of given oil pool development; singling-out from history of development of spontaneous-nonplanned variation of hydrodynamic conditions of all wells; registration of oil pool response to spontaneous variation of hydrodynamic conditions by variation of parameters of producing well operation; singling-out of zones of oil residual reserves by oil pool response; determination of value of oil residual reserves by such parameters of obtained response as amount, rate and water- or gas-cutting of oil withdrawn from producing wells after spontaneous variation of hydrodynamic conditions; making decision on economic efficiency of subsequent development of oil pool. In case of sufficient economic efficiency of oil pool development as a whole or its separate singled-out zones of response, purposeful regulation of development system is undertaken in singled-out zones of response with consideration of obtained response results. EFFECT: higher efficiency of method due to use of confident parameters of oil pool development. 6 cl |
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Bibliography: | Application Number: RU20020131778 |