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Device and method for measuring adhesion strength of gel-type leak plugging material and rock wall

A technology of plugging material and adhesion strength, applied in the field of exploration

Active Publication Date: 2022-01-18
CHENGDU UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0003] Aiming at the above-mentioned deficiencies in the prior art, the device and method for measuring the adhesion strength between the gel-type leak plugging material and the rock wall surface provided by the present invention solve the problem of indoor accurate measurement of the adhesion strength between the gel-type leak plugging material and the rock wall surface The problem

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  • Device and method for measuring adhesion strength of gel-type leak plugging material and rock wall
  • Device and method for measuring adhesion strength of gel-type leak plugging material and rock wall

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Embodiment Construction

[0043] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0044] Such as figure 1As shown, the device for measuring the adhesion strength of gel-type leakage plugging materials to the rock wall includes a rotating part and a measuring housing 1 connected with the rotating part; a hollow core 2 is arranged in the measuring housing 1, and a There is a T-shaped blocking rod 4, one end of the T-shaped blocking rod 4 passes through one side of the measuring housing 1 and is provided wi...

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Abstract

The invention discloses a device and method for measuring the adhesion strength of gel-type leakage plugging materials and rock walls. The device includes a rotating part and a measuring housing connected with the rotating part; A T-shaped blocking rod is provided, and one end of the T-shaped blocking rod passes through one side of the measuring housing and a displacement measuring part for measuring the displacement of the T-shaped blocking rod is provided; the other side of the measuring housing is provided with a sealing plate. In the present invention, the hollow rock core is used as a container to directly contact the gel plugging material to be tested, and the internal pressure is directly injected by injecting oil, so that the gel plugging material to be tested can obtain driving force, and when the gel plugging material to be tested When the lost circulation material moves relative to the hollow core, the adhesion strength between the gel-based plugging material to be tested and the rock wall can be calculated, which is of great significance for clarifying the plugging mechanism of the gel-based plugging material and solving the problem of lost circulation.

Description

technical field [0001] The invention relates to the field of exploration, in particular to a device and method for measuring the adhesion strength of a gel-type leakage plugging material and a rock wall. Background technique [0002] As oilfield development continues, complex drilling accidents occur from time to time. Lost circulation is the most common downhole complex problem in the drilling process. It not only consumes drilling time and loses mud, but also may cause pipe sticking, blowout, well collapse, etc. A series of complicated situations even lead to the failure of the wellbore, resulting in significant economic losses. (Flexible) gel plugging material is a structural colloid that can completely cut off the relationship between the formation fluid and the wellbore and has a large movement resistance. It has relatively good fluidity and strong self-adaptability, and has become a practical engineering It is an effective material for formation plugging. The conditi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N19/04
CPCG01N19/04
Inventor 李阳佘继平张世玉滕格格倪建军韩凯张浩
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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