Fracture-vug type oil reservoir production dynamic characterization method, device and equipment and storage medium

A production dynamic, fracture-cavity technology, applied in fracture-cavity reservoir production performance characterization methods, equipment, storage media, and devices, can solve the problem of lack of quantitative characterization and difficulty in accurately characterizing the production dynamics of multiple rounds of water injection for oil replacement and other issues, to achieve the effects of tapping the remaining development potential, enhancing oil recovery, and improving accuracy

Active Publication Date: 2021-02-05
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology

However, at present, the lack of quantitatively characterizing the production dynamics of multiple rounds of water injection for oil replacement has become

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  • Fracture-vug type oil reservoir production dynamic characterization method, device and equipment and storage medium
  • Fracture-vug type oil reservoir production dynamic characterization method, device and equipment and storage medium
  • Fracture-vug type oil reservoir production dynamic characterization method, device and equipment and storage medium

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[0058] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described The embodiments are only some of the embodiments in this specification, not all of them. Based on the embodiments in this specification, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this specification.

[0059] refer to figure 1 As shown, the fracture-vuggy reservoir production performance characterization method in some embodiments of this specification may include the following steps:

[0060] S101. Determine the fracture-vug unit type to which the target single well belongs.

[0061] For fractured-vuggy reservoirs, there are significant differences in the ...

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Abstract

The embodiment of the invention provides a fracture-vug type oil reservoir production dynamic characterization method, device and equipment and a storage medium. The method comprises the steps of: determining the fracture-vug unit type to which a target single well belongs; according to the generalized Darcy law, establishing a relation model between the periodic comprehensive water content and the periodic recovery ratio increasing amplitude of the target single well under multi-round water injection oil displacement; constructing a minimized target function according to the relation model; taking the observation value of the periodic comprehensive moisture content of the target single well as input, solving the minimized target function, and obtaining a determined relation model; and taking the relationship curve corresponding to the determined relationship model as the production dynamic law of the oil well corresponding to the fracture-cavity unit type under the condition of multi-round water injection oil replacement. According to the embodiment of the invention, the accuracy of dynamic characterization of multi-round water injection oil displacement production of the fracture-cavity type oil reservoir can be improved.

Description

technical field [0001] This specification relates to the field of development technology of fractured-vuggy carbonate reservoirs (hereinafter referred to as fractured-vuggy reservoirs), in particular to a production performance characterization method, device, equipment and storage medium of fractured-vuggy reservoirs. Background technique [0002] Fracture-vuggy reservoirs are generally special types of reservoirs with large caves and fractures as the main storage space. Fracture-vuggy reservoirs have various types of storage spaces, large differences in controlled reserves of single wells, severe heterogeneity, and extremely complex oil-water relationship. [0003] The early development of fractured-cavity reservoirs mainly relies on elastic energy and natural water flooding. In view of the problems of rapid production decline and low recovery rate caused by insufficient energy and rising water content of some fractured-vuggy reservoirs, the current existing technology ha...

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Application Information

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IPC IPC(8): G06F30/20G06F30/28G06Q50/02G06F111/06G06F111/10G06F113/08G06F119/14
CPCG06F30/20G06F30/28G06Q50/02G06F2111/10G06F2113/08G06F2111/06G06F2119/14
Inventor 王代刚宋考平李勇李保柱王琦魏晨吉赵宽志蔡泉
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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