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:
Apr. 26, 2022
Filed:
Apr. 04, 2018
Petrochina Company Ltd., Beijing, CN;
Xianwen Li, Beijing, CN;
Qiaorong Han, Beijing, CN;
Yanming Zhang, Beijing, CN;
Xu Ma, Beijing, CN;
Zhanguo Ma, Beijing, CN;
Yangming Hu, Beijing, CN;
Changjing Zhou, Beijing, CN;
Yuanxiang Xiao, Beijing, CN;
Huaqiang Shi, Beijing, CN;
Baochun Chen, Beijing, CN;
Yonghong Gu, Beijing, CN;
Xiaoyong Wen, Beijing, CN;
Xuan'ang Lai, Beijing, CN;
Yong Ding, Beijing, CN;
Liang Ye, Beijing, CN;
Qianyun Zhao, Beijing, CN;
Xinxing Ma, Beijing, CN;
Yajuan Wang, Beijing, CN;
Man Bi, Beijing, CN;
Hua Shi, Beijing, CN;
Mingfang He, Beijing, CN;
Xiaorui Liu, Beijing, CN;
Wei Gao, Beijing, CN;
Hongying Li, Beijing, CN;
Yun Ling, Beijing, CN;
Ruifen Hao, Beijing, CN;
Lei Shen, Beijing, CN;
Guohui Su, Beijing, CN;
Shaowei Zhou, Beijing, CN;
Shusheng Li, Beijing, CN;
Zhe Li, Beijing, CN;
Abstract
The present invention discloses a method for lowering an oil pipe in a gas well without well-killing, a soluble bridge plug and a material preparation method thereof, wherein, the method comprises the steps of: lowering a bridge plug in a wellbore such that the bridge plug blocks the wellbore at a predetermined location in the wellbore; injecting water in the wellbore after the pressure in the wellbore has been relieved so as to replace gases in the wellbore; and lowering an oil pipe in the wellbore to the location of the bridge plug. The method for lowering an oil pipe in a gas well without well-killing, the soluble bridge plug and the material preparation method thereof provided in the present invention successfully solve the problem of high cost for lowering an oil pipe under pressure after a fracturing fluid has been injected into the casing.