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Measuring device and measuring method for unidirectional spontaneous imbibition oil displacement

A measuring device, a technology of spontaneous imbibition, applied in the direction of measuring device, permeability/surface area analysis, suspension and porous material analysis, etc., can solve problems such as no

Pending Publication Date: 2022-07-29
PETROCHINA CO LTD
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  • Claims
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Problems solved by technology

[0005] The main purpose of the present invention is to provide a measuring device and method for one-way spontaneous imbibition flooding, so as to solve the problem in the prior art that there is no device capable of monitoring the law of spontaneous imbibition

Method used

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  • Measuring device and measuring method for unidirectional spontaneous imbibition oil displacement
  • Measuring device and measuring method for unidirectional spontaneous imbibition oil displacement
  • Measuring device and measuring method for unidirectional spontaneous imbibition oil displacement

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Embodiment 2

[0055] The difference between the measuring device of the second embodiment and the measuring device of the first embodiment lies in the structure and arrangement position of the measuring instrument 20 . Specifically, as figure 2As shown, in the second embodiment, the measuring instrument 20 also includes a side electrode sheet 24, the side electrode sheet 24 is in contact with the side wall of the core 1, the side electrode sheet 24 is a plurality of upper and lower electrode sheets arranged at intervals, the upper electrode sheet 21, the lower electrode sheet The sheet 22 and the side electrode sheet 24 are both electrode sheets. The resistivity measuring device 23 includes a plurality of resistivity meters 231 , and one resistivity meter 231 is arranged between two adjacent electrode sheets. The above structure can measure the core resistance between adjacent electrode sheets, and finally measure the resistance distribution of the entire core 1 to monitor the spontaneous ...

Embodiment 3

[0056] The difference between the measuring device of the third embodiment and the measuring device of the first embodiment lies in the structure and arrangement position of the measuring instrument 20 . Specifically, as image 3 As shown, in the third embodiment, the measuring instrument 20 includes a positive side electrode group, a negative side side electrode group located on one side of the positive side side electrode group, and a side electrode system analysis system 25. The positive side side electrode group and the negative side side The electrode groups are symmetrically arranged, each positive side electrode group includes a plurality of positive side electrodes 26 spaced along the length direction of the core 1, and each negative side electrode group includes a plurality of positive side electrodes 26 spaced along the length direction of the core 1 Negative side electrode 27, each positive side electrode 26 and its symmetrical negative side electrode 27 form an ele...

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Abstract

The invention provides a one-way spontaneous imbibition oil displacement measuring device and method, and the device comprises a container which is provided with a cavity for accommodating a rock core, the bottom of the container is provided with a liquid inlet, and the top of the container is provided with an oil outlet; and the measuring instrument is used for measuring the resistivity of the rock core. According to the technical scheme, the problem that no device capable of monitoring the spontaneous imbibition rule exists in the prior art can be effectively solved.

Description

technical field [0001] The invention relates to the field of oil exploitation, in particular, to a measuring device and a measuring method for unidirectional spontaneous imbibition oil displacement. Background technique [0002] With the continuous exploration and experimental development of unconventional oil and gas resources, the research on unconventional oil and gas resources needs to be deepened. At present, unconventional reservoirs represented by shale gas are characterized by tightness, and their development requires large-scale hydraulic fracturing, and a large amount of water is injected into the formation. Therefore, evaluating the spontaneous imbibition law of reservoir rocks is the focus of unconventional oil and gas development research. one of the key questions. This is mainly due to the following reasons: First, since the roars of tight reservoirs are small and the throat distribution is mostly at the micro-nano level, the spontaneous imbibition phenomenon ...

Claims

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Application Information

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IPC IPC(8): G01N15/08
CPCG01N15/08G01N15/0806
Inventor 谢斌葛洪魁张奎申颖浩黄波王金龙王刚孙宜成郭长永陈禹欣
Owner PETROCHINA CO LTD
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