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:
Jun. 14, 2022
Filed:
Sep. 06, 2020
Sinopec Oilfield Service Corporation, Beijing, CN;
Sinopec Oilfield Service Jianghan Corporation, Qianjiang, CN;
Logging Company, Sinopec Oilfield Service Jianghan Corporation, Qianjiang, CN;
Guosheng Yang, Qianjiang, CN;
Yong Liao, Qianjiang, CN;
Zhihua Zhang, Qianjiang, CN;
Liang Ye, Qianjiang, CN;
Jiang Zhu, Qianjiang, CN;
Haitao Rao, Qianjiang, CN;
Jinguo Pan, Qianjiang, CN;
Siping Chen, Qianjiang, CN;
Yuanhui Shi, Qianjiang, CN;
Yijiang Feng, Qianjiang, CN;
Peiwen Gu, Qianjiang, CN;
Chao Lu, Qianjiang, CN;
Zhongxin Fan, Qianjiang, CN;
Zhi Li, Qianjiang, CN;
Chaohui Zhang, Qianjiang, CN;
SINOPEC OILFIELD SERVICE CORPORATION, Beijing, CN;
SINOPEC OILFIELD SERVICE JIANGHAN CORPORATION, Qianjiang, CN;
LOGGING COMPANY, SINOPEC OILFIELD SERVICE JIANGHAN CORPORATION, Qianjiang, CN;
Abstract
A perforating device includes a release sub, a rotating segment, a first centralizer, a braking segment, a casing collar locator, a traction mechanism, a second centralizer, a flex joint, a power supply segment, a shock absorber, a perforator, and a tail segment, which are in threaded connection sequentially to each other. The first joint assembly includes a first joint, a guide key, a connecting sleeve including a locking groove, a second joint, and an outer pipe; the first joint of the first joint assembly is in threaded connection to the cable bridle, and the second joint is in threaded connection to the outer pipe. The connecting sleeve is disposed inside the outer pipe and is connected to the first joint through the guide key. The second joint assembly includes a plurality of locking claws, a third joint, and a head.