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A cementing cement damage monitoring device and data collection method

A technology for cementing cement and damage monitoring, which is used in surveying, earthmoving, wellbore/well components, etc., and can solve the problems of cementing cement damage and the inability to effectively detect the sealing performance.

Active Publication Date: 2022-05-13
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, sonic cement bonding logging is commonly used to evaluate the cementing quality. This measurement method mainly evaluates the bonding between the cementing casing and the cement stone, and cannot effectively detect the damage and sealing of the cement stone.

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  • A cementing cement damage monitoring device and data collection method
  • A cementing cement damage monitoring device and data collection method
  • A cementing cement damage monitoring device and data collection method

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Embodiment Construction

[0040] 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.

[0041] The embodiment of the present invention aims to form a cement stone damage monitoring device, which collects cement stone state characterization data in real time through a customized sensor device packaged in the casing centralizer, and after analog-to-digital conversion and data integration processing, Parameters such as temperature, pressure, stress and strain in the cement stone are sent to the mon...

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Abstract

The invention discloses a cement damage monitoring device, which comprises at least one sensor monitoring station (70) installed on the outer wall of the cementing casing (30), wherein the sensor monitoring station (70) collects solid The state characterization data of the cement stone (10) in the annular space between the well casing (30) and the formation (50) at least includes pressure, temperature, stress and strain, and evaluate the sensor monitoring station (70) according to the state characterization data. The damage and tightness of the cement stone (10) at the position. The invention realizes the long-term continuous monitoring of the cementing operation quality and the sealing performance of the cement stone (10), provides powerful data support for timely understanding and mastering the sealing performance of the annular space, and provides scientific basis for timely treatment, and at the same time , can give early warning of safety accidents caused by cementing failure.

Description

technical field [0001] The invention relates to the field of exploration and development of oil and gas resources, in particular to a cement damage monitoring device and a data collection method. Background technique [0002] At present, the exploration and development of oil and gas resources is developing towards complex formations and deep oil and gas reservoirs, resulting in many complicated petroleum engineering situations, long cycle times, and high operational risks, which seriously restrict the exploration and development process and bring new challenges to cementing operations. The quality of cementing will directly affect many aspects such as drilling efficiency, safety accidents, life of oil and gas wells, and recovery rate of oil and gas reservoirs. Cement damage or poor sealing will cause channeling, even overflow, resulting in blowout accidents, such as the BP oil spill in the Gulf of Mexico in 2010. Due to the influence of complex factors such as downhole tem...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/005E21B47/00E21B47/12
CPCE21B47/00E21B47/12E21B47/005
Inventor 曾义金李丰波张卫周仕明倪卫宁李新吴金平陆沛青
Owner CHINA PETROLEUM & CHEM CORP
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