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Well cementation cement paste low-temperature thickening instrument

A technology for cementing cement slurry and thickening instrument, which is applied in the fields of instruments, scientific instruments, flow characteristics, etc., can solve the problems of inability to test and obtain the low-temperature thickening performance of cement slurry and increase in consistency.

Pending Publication Date: 2020-10-20
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

High-efficiency additives at such a high ambient temperature will cause the cement slurry to hydrate too quickly, and the consistency will increase rapidly, making it impossible to test and obtain the real low-temperature thickening performance of the cement slurry

Method used

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  • Well cementation cement paste low-temperature thickening instrument
  • Well cementation cement paste low-temperature thickening instrument

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Embodiment Construction

[0028] In order to make the technical solutions and advantages of the present invention clearer, the exemplary embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only a part of the embodiments of the present invention, and are not exhaustive of all the embodiments. And in the case of no conflict, the embodiments and the features in the embodiments of the present invention can be combined with each other.

[0029] figure 1 It schematically shows a cementing slurry low temperature thickening instrument according to an embodiment of the present invention. According to the cementing slurry low-temperature thickening instrument of the present invention, it can test the low-temperature thickening performance of cement slurry at room temperature in the laboratory, truly simulate the pumping process under outdoor low temperature or even negative temperature conditions,...

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Abstract

The invention provides a well cementation cement paste low-temperature thickening instrument which comprises a case, wherein an operation table is arranged on the case, and a control panel is arrangedon the operation table; at least one pulp cup mounting device arranged in the case, wherein a pulp cup is mounted on the pulp cup mounting device, a consistency meter is arranged on the pulp cup, and the consistency meter is used for measuring the thickening degree of an object in the pulp cup; a temperature adjusting device arranged in the case, connected with the pulp cup and used for controlling the temperature of the pulp cup; and a control device arranged on the control panel and comprising a motor control device for controlling the pulp cup mounting device to rotate and a temperature control device for controlling the temperature adjusting device. The device can simulate the thickening condition of well cementation cement paste in a low-temperature environment.

Description

technical field [0001] The invention relates to a cementing slurry low-temperature thickening instrument, which belongs to the field of cementing engineering test devices in oil and gas development. Background technique [0002] In the development of low-temperature cementing cement slurry, in order to overcome the problem of slow or even no hydration of cement particles in low-temperature environments, technicians usually add high-efficiency additives to promote rapid hydration of cement and make it have reasonable low-temperature performance. The low-temperature cement slurry with high-efficiency additives is very sensitive to temperature, and the design and application temperature of its various properties is often 4°C to -8°C. However, the laboratory temperature is usually around 26°C, and the experimental test temperature of low-temperature cement slurry in indoor research is usually 20°C to 30°C higher than the design temperature. High-efficiency additives at such a h...

Claims

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Application Information

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IPC IPC(8): G01N11/00G01N33/38
CPCG01N11/00G01N33/383
Inventor 刘浩亚鲍洪志李燕陈向军豆宁辉牛成成廖璐璐金鑫
Owner CHINA PETROLEUM & CHEM CORP
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