Device and method for testing self-repairing of oil well cement

A testing device, oil well cement technology, applied in material inspection products, instruments, analytical materials, etc., can solve problems such as the inability to monitor the self-repairing process of cement stone, and achieve the effect of reducing workload

Active Publication Date: 2016-02-10
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0005] Aiming at the problem that existing devices cannot monitor the self-repairing process of cement under high tem...

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  • Device and method for testing self-repairing of oil well cement
  • Device and method for testing self-repairing of oil well cement
  • Device and method for testing self-repairing of oil well cement

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[0053] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0054] With the advancement of science and technology, self-healing repair technology has been applied in more and more fields. In the field of oil drilling, self-healing repair technology has also been applied to cementing cement. However, the application of self-healing repair technology in cementing has just started. How to more perfectly apply the self-healing repair technology to the cement and make it...

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Abstract

The invention discloses a device for testing self-repairing of oil well cement. The device comprises a slurry cup for holding a to-be-tested cement rock; a heating unit for heating the to-be-tested cement rock in the slurry cup to a pre-set temperature; a pressure liquid-supply unit for injecting a liquid at a pre-set pressure into the slurry cup; and a monitoring unit for collecting a flow parameter of the fluid in real time. The invention further discloses a method for testing self-repairing of cement through adoption of the device for testing self-repairing of oil well cement. Through utilization of the device, the high-temperature high-pressure environment can be stimulated, and variation of the size of a crack is reflected through monitoring variation of the flow of the fluid passing through the crack of the cement rock in real time, so that a mending condition of the cement rock is reflected. Through utilization of the device, data can be collected through a computer, and variation of the flow with time is automatically observed and recorded in real time, so that a research worker can directly obtain data of a recorded result, and the workload of the research worker is relieved.

Description

technical field [0001] The invention relates to the field of oil drilling, in particular to an oil well cement self-repair testing device and method. Background technique [0002] With the advancement of science and technology, self-healing repair technology has been applied in more and more fields. At the present stage, the application of self-healing repair technology in cement is still a new research field, and the research on the application of cement with self-healing repair technology has just started. [0003] The cement stone added with self-healing materials can realize self-sealing repair after being swelled by oil and gas. In the research process, in order to accurately grasp the self-healing state process of cement stone, it is necessary to make detailed measurement records for the self-healing process. However, in the current research, the test and evaluation of the self-healing process of cement mainly rely on the expansion test device of cement stone or the n...

Claims

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Application Information

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IPC IPC(8): G01N33/38G01N35/00
Inventor 汪晓静王其春刘伟周仕明徐春虎曾敏
Owner CHINA PETROLEUM & CHEM CORP
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