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Method and device for determining well cementation quality

A method and quality determination technology, applied in the field of determination of cementing quality, can solve the problem of low accuracy of cementing quality, achieve the effect of increasing reference factors and improving accuracy

Pending Publication Date: 2022-05-17
PETROCHINA CO LTD
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Problems solved by technology

Since the cementing quality will be affected by the quality of the drilling engineering, the cementing quality is only determined according to the result of cement bonding after cementing, and the results obtained have certain limitations, which makes the accuracy of the determined cementing quality low

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  • Method and device for determining well cementation quality
  • Method and device for determining well cementation quality
  • Method and device for determining well cementation quality

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Embodiment Construction

[0098] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0099] This embodiment provides a method for determining the cementing quality, see figure 1 , the method includes:

[0100] Step 101: The terminal acquires drilling information and logging information of multiple target wells to be evaluated.

[0101] Among them, the drilling information includes multiple drilling parameters. The multiple drilling parameters include the completion depth, the length of the oil and gas layer sealing section, the maximum inclination angle, the expansion rate of the well diameter, and the return height ratio. Deep proportions. The logging information includes the length of the first section and the first logging rate. The first section length is the section length of the target well section whose ...

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Abstract

The invention provides a well cementation quality determination method and device. Belongs to the technical field of petroleum drilling engineering. The method comprises the steps that well drilling information and well logging information of multiple target wells are obtained, the well drilling information comprises multiple well drilling parameters, the well logging information comprises a first segment length and a first well logging rate, the weight of each well drilling parameter and the influence degree of each well drilling parameter of each target well are determined based on the well drilling information of the multiple target wells, and the first segment length and the first well logging rate are determined; determining a first quality parameter of each target well based on the weight of each drilling parameter and the influence degree of each drilling parameter of each target well, determining a second well logging rate based on the first section length and the oil and gas reservoir sealing section length of each target well, and determining a second quality parameter of each target well based on the second well logging rate and the first well logging rate of each target well. And a second quality parameter of each target well is determined, and the well cementation quality of each target well is determined based on the first quality parameter and the second quality parameter of each target well. The method improves the accuracy of the determined well cementation quality.

Description

technical field [0001] The present application relates to the technical field of petroleum drilling engineering, in particular to a method and device for determining cementing quality. Background technique [0002] Cementing is the key technology to ensure the production of oil and gas wells, and the quality of cementing is of great significance to the production and development of oil and gas wells and the construction of production capacity. Therefore, after the oil and gas well cementing operation is completed, the cementing quality must be determined to verify whether the cemented oil and gas well meets the production requirements. [0003] In the related technology, the result of cement bonding after well cementing is determined, and the cementing quality is determined according to the result of cement bonding after well cementing. Since the cementing quality will be affected by the quality of the drilling engineering, the cementing quality is only determined according...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/005E21B47/00
CPCE21B47/00
Inventor 吕照鹏唐世忠吴华李娟杨涛张学强张晓峰林莉莉
Owner PETROCHINA CO LTD
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