The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 2023
Filed:
Apr. 13, 2021
Southwest Petroleum University, Sichuan, CN;
Engineering Technology Research Institute, Southwest Oil and Gas Field Company of Petro China, Sichuan, CN;
Zhi Zhang, Sichuan, CN;
Duo Hou, Sichuan, CN;
Huali Zhang, Sichuan, CN;
Yufei Li, Sichuan, CN;
You Wu, Sichuan, CN;
Lin Zhang, Sichuan, CN;
Wei Luo, Sichuan, CN;
Chuanlei Wang, Sichuan, CN;
Xiankang Zhong, Sichuan, CN;
Pengfei Sang, Sichuan, CN;
Abstract
A sealing integrity evaluation device for high-temperature and high-pressure casing-cement ring-formation and a method thereof are provided. the device includes: a high-temperature autoclave, a temperature and pressure control system, and a casing-cement-formation combination; wherein the autoclave realizes alternating temperature and pressure during the experiment; the control system monitors, controls and records the temperature and pressure data; the combination simulates a full size or a compact size casing-cement-formation of a well. Casing-cement-formation combination samples are designed and prepared by simulating working conditions such as alternating temperature, pressure, and casing internal pressure, by testing the channeling and leakage pressure of the first interface and the second interface of combination, analyzing the shape and size of the internal defects, testing the compressive strength, provided a more stable and reliable experimental method and data support for the detection of cementing sheath sealing ability and the evaluation of sealing integrity.