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Heterogeneous system evaluation method and device, electronic equipment and storage medium

A heterogeneous and systematic technology, applied in the direction of production fluid, earthwork drilling, wellbore/well components, etc., can solve the problems of inaccurate evaluation results of heterogeneous systems, and achieve the effect of avoiding inaccurate evaluation results

Active Publication Date: 2021-12-14
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology

[0005] The evaluation method, device, electronic equipment and storage medium of the heterogeneous system provided by the application are used to solve the problem of inaccurate evaluation results of the heterogeneous system in the prior art

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  • Heterogeneous system evaluation method and device, electronic equipment and storage medium
  • Heterogeneous system evaluation method and device, electronic equipment and storage medium
  • Heterogeneous system evaluation method and device, electronic equipment and storage medium

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Embodiment Construction

[0107] Exemplary embodiments will be described in detail herein, and examples are illustrated in the drawings. The following description is related to the drawings, unless otherwise indicated, the same figures in the different drawings represent the same or similar elements. The embodiment described in the exemplary embodiments is not meant to all embodiments consistent with the present application. Instead, they are only examples of apparatus and methods consistent with some aspects of the present application as detailed in the appended claims.

[0108] During the development of the reservoir, the water-drive development reservoir has a low recovery rate due to the difference in oil and water viscosity. In order to improve the recovery during the reservoir development, a non-uniform phase-driven oil system can be employed. During the driving oil, the non-average phase system can be used to adjust the transfer of the oil supply in the non-homogeneous formation. The oil passage, th...

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Abstract

The invention provides a heterogeneous system evaluation method and device, electronic equipment and a storage medium. The method comprises the steps of obtaining the particle size median of a heterogeneous system, and determining the type of an oil displacement experiment model according to the particle size median; determining seepage parameters of the oil displacement experiment model; constructing the oil displacement experimental model according to the seepage parameters, after the oil displacement experimental model is saturated with oil, injecting water into the oil displacement experimental model for an oil displacement experiment until the oil production of the output end of the oil displacement experimental model is reduced to a first value, and determining a first recovery ratio; continuously injecting the heterogeneous system into the oil displacement experiment model, then carrying out the oil displacement experiment until the oil production of the output end of the oil displacement experiment model is reduced to a second value, and obtaining a second recovery rate of the oil displacement experiment; and determining an evaluation result of the heterogeneous system according to the first recovery ratio and the second recovery ratio. By means of the method, the heterogeneous systems with different particle sizes can be matched to a proper oil displacement model, and the problem that the evaluation result is inaccurate due to the fact that the model is improper is solved.

Description

Technical field [0001] The present application relates to oil well logging, and more particularly relates to a heterogeneous system evaluation methods, apparatus, electronic apparatus and a storage medium. Background technique [0002] Currently, in order to further enhance oil recovery reservoir, in Reservoirs usually use a heterogeneous flooding system as displacing agent in oil extraction process. Since different heterogeneous system suitability different for different reservoirs, to improve the degree of recovery is different, and therefore, need to be evaluated before use of a heterogeneous system, for determining a current system suitable heterogeneous reservoir Floor. [0003] Currently, when the evaluation of a heterogeneous system, usually model core flooding experiments, obtaining oil content and the ratio of the amount of oil produced fluid prior to injection as flooding recovery experiment to evaluate the heterogeneous the adaptive system for heterogeneous systems for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/00E21B43/16E21B43/20
CPCE21B49/00E21B43/16E21B43/20Y02A10/40
Inventor 李宜强陈鑫刘哲宇隋铭月张含高文彬汤翔曹涵刘涛
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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