Systematic Analysis of the Results of Studying a Technogenically Formed Spatially Heterogeneous Drainage Zone of Horizontal Wells

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Abstract

In this article, using a system analysis of the results of studying a technogenically formed spatially heterogeneous drainage zone of horizontal wells, its geological and physical features that determine design decisions and operational characteristics of wells are studied. A spatially heterogeneous zone arises as a result of the use of a system for maintaining reservoir pressure during waterflooding as a method of increasing oil recovery from fields. The use of a systems approach and a set of studies, including geophysical and hydrodynamic methods, modeling and numerical calculations, allowed us to conclude that during intensive development of a pore reservoir, fluid filtration is significantly determined by the formed technogenic fracture component and is characterized by nonlinear effects. The pore type of the reservoir changes and a dual environment is formed in the deposit. The use of a system approach is justified by the fact that instead of transforming the well arrangement system, superconductivity zones caused by disjunctive faults in the oil field area should be eliminated. The technogenically formed drainage zone of horizontal wells should be taken into account when developing design solutions at the last stage of exploitation of the productive formation. The results of this research article can be used to improve the efficiency of oil production by increasing the profitable period of operation of horizontal wells in terrigenous reservoirs, in which zones of superconductivity of the interwell space are formed.

Keywords

heterogeneous zone drainage of horizontal wellstechnogenically formed crackstracer studieslow filtration resistance channelmodel of the hydraulic system of productive formationsdisjunctive faultsflexural-fractural faults.

Bibliography

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Article information

Published
30 August 2024
Issue date
30 August 2024
Issue
Vol. 24, No. 3 (2024)
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