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Method and system for detecting imbibition distance

An imbibition, distance technique used in measuring devices, material analysis using wave/particle radiation, instruments, etc.

Inactive Publication Date: 2020-06-05
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, in the current research on imbibition, how to quantitatively characterize the contribution rate of imbibition in the process of water flooding is an unresolved problem

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  • Method and system for detecting imbibition distance
  • Method and system for detecting imbibition distance
  • Method and system for detecting imbibition distance

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Embodiment Construction

[0025] The specific implementation manners of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation manners described here are only used to illustrate and explain the embodiments of the present invention, and are not intended to limit the embodiments of the present invention.

[0026] figure 1 It is a schematic flow chart of the method for detecting the imbibition distance provided by the embodiment of the present invention. Such as figure 1 As shown, the method for detecting the imbibition distance includes steps S110 to S130.

[0027] In step S110, the scanned image of the dry core of the core to be tested, the scanned image of the core saturated with oil for the test, and the scanned image of the core saturated with the oil for the test during the imbibition process are acquired.

[0028] Before performing the imbibition test, it is necessary to se...

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Abstract

The invention provides a method and system for detecting the imbibition distance, and belongs to the technical field of oil reservoir development. The method comprises the following steps: acquiring ascanning image of a dry rock core of a rock core to be detected, a scanning image of a rock core of saturated experimental oil and a scanning image of the rock core of the saturated experimental oilin an imbibition process, wherein the rock core of the saturated experimental oil is obtained by treating the rock core to be detected with the saturated oil; determining water saturation distributionof the rock core of the saturation experiment oil in the imbibition process according to the scanning image of the dry rock core, the scanning image of the rock core of the saturation experiment oiland the scanning image of the rock core of the saturation experiment oil in the imbibition process; and determining the imbibition distance according to the water saturation distribution of the rock core of the saturation experiment oil in the imbibition process. According to the technical scheme, the imbibition distance of the imbibition liquid in the imbibition process of the rock core to be detectedcan be accurately determined, and the method and the system haveimportant theoretical significance and reference value for actual oil reservoir development.

Description

technical field [0001] The invention relates to the technical field of reservoir development, in particular to a method and system for detecting imbibition distance. Background technique [0002] As most of the conventional oil reservoirs are currently in the late stage of development, tight oil reservoirs have become a hot spot for exploration and development. The characteristics of tight reservoirs, such as low porosity, extremely low permeability and complex pore structure, lead to poor natural fluidity of reservoir fluids, high seepage resistance, low production capacity, and rapid production decline. According to the characteristics of tight reservoirs, horizontal wells and multi-stage hydraulic fracturing are more and more widely used. In the fractured reservoir, the injected water mainly flows along the fracture system, and the crude oil in the matrix system is mainly produced by imbibition. Therefore, the important role of imbibition recovery in the development of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N13/04G01N23/046
CPCG01N13/04G01N23/046
Inventor 于海洋许航付文瑞程时清汪洋
Owner CHINA UNIV OF PETROLEUM (BEIJING)