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Supercritical carbon dioxide fracturing cement bonding surface cracking experimental equipment and method

A carbon dioxide and cement bonding technology, which is used in earth-moving drilling, wellbore/well components, climate sustainability, etc. It can solve problems such as untested cementing and achieve reliable shear strength parameters.

Active Publication Date: 2022-05-31
YANGTZE UNIVERSITY
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Problems solved by technology

Therefore, whether supercritical carbon dioxide will have a certain impact on the cementing surface of cement in the fracturing process is still to be verified, and there is no test at present that the cement is subjected to the pressure generated by supercritical carbon dioxide as a pressure transmission medium. The experimental method and equipment for the variation of various parameters of the cemented surface

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  • Supercritical carbon dioxide fracturing cement bonding surface cracking experimental equipment and method
  • Supercritical carbon dioxide fracturing cement bonding surface cracking experimental equipment and method
  • Supercritical carbon dioxide fracturing cement bonding surface cracking experimental equipment and method

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Embodiment Construction

[0039] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings, but they do not constitute a limitation of the present invention, but are only examples.

[0040] refer to Figure 1-8 Shown: supercritical carbon dioxide fracturing cement bonding surface fracturing experimental equipment, which includes a sealing cover 1, an upper pad 2, a casing 3, a lower pad 4 and a support base 5;

[0041] A sleeve 3 is arranged between the sealing cover 1 and the support base 5 , an upper pad 2 is arranged between the sealing cover 1 and the sleeve 3 , and an upper spacer 2 is arranged between the sleeve 3 and the support base 5 . There is a bottom plate 4,

[0042] A mutually penetrating air inlet 1.1 is provided between the sealing cover 1 and the upper cushion block 2 , and a cavity 6 is provided between the sleeve 3 , the lower backing plate 4 and the support base 5 .

[0043] In the above technical solution: the lowe...

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Abstract

The invention discloses supercritical carbon dioxide fracturing cement bonding surface cracking experimental equipment and methods, which include a sealing cover (1), an upper pad (2), a casing (3), a lower pad (4) and a support base ( 5); a casing (3) is arranged between the sealing cover (1) and the support base (5), and an upper pad (2) is arranged between the sealing cover (1) and the casing (3) ), the lower backing plate (4) is arranged between the casing (3) and the support base (5); The shortcomings of the experimental method and equipment for the change of the parameters of the cemented surface after the pressure is high, have fully taken into account the complexity of the formation. By reducing the approximate composition of the sandstone formation cementing cement, the cementing in the sandstone formation well completion process can be well restored. The advantage of the force situation of the well cement.

Description

technical field [0001] The invention relates to the technical field of the collection rate of oil and gas products, and more particularly relates to a supercritical carbon dioxide fracturing cement cementation surface fracturing experimental equipment and method. Background technique [0002] In the current petroleum industry, enhancing the recovery factor of oil and gas products is a major research topic, and the main way to enhance the recovery factor is to develop the reservoir as completely as possible. In the process of developing the remaining reservoir, it is often necessary to Fracturing is used to crack the rock formation that wraps the remaining oil, so that the pressure transfer medium used in the fracturing process enters the rock formation through these small cracks. The characteristics of the strata make the oil reservoirs in the strata be replaced, thereby improving the recovery factor. At present, in the field of petroleum engineering, in the fracturing proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/005E21B43/26E21B43/16
CPCE21B43/164E21B43/26E21B47/005Y02P90/70
Inventor 翟晓鹏张瀚之
Owner YANGTZE UNIVERSITY
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