Method for lowering oil pipe in gas well without well-killing, soluble bridge plug and material preparation method thereof

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United States of America

PATENT NO 11313192
APP PUB NO 20200040682A1
SERIAL NO

16607068

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
PETROCHINA COMPANY LIMITEDDONGCHENG DISTRICT BEIJING 100007

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bi, Man Beijing, CN 1 1
Chen, Baochun Beijing, CN 3 5
Ding, Yong Beijing, CN 67 333
Gao, Wei Beijing, CN 459 3897
Gu, Yonghong Beijing, CN 1 1
Han, Qiaorong Beijing, CN 1 1
Hao, Ruifen Beijing, CN 1 1
He, Mingfang Beijing, CN 2 1
Hu, Yangming Beijing, CN 1 1
Lai, Xuan'ang Beijing, CN 1 1
Li, Hongying Beijing, CN 13 343
Li, Shusheng Beijing, CN 9 3
Li, Xianwen Beijing, CN 9 8
Li, Zhe Beijing, CN 423 4884
Ling, Yun Beijing, CN 46 525
Liu, Xiaorui Beijing, CN 10 11
Ma, Xinxing Beijing, CN 3 14
Ma, Xu Beijing, CN 8 8
Ma, Zhanguo Beijing, CN 4 3
Shen, Lei Beijing, CN 59 317
Shi, Hua Beijing, CN 18 149
Shi, Huaqiang Beijing, CN 1 1
Su, Guohui Beijing, CN 3 1
Wang, Yajuan Beijing, CN 35 176
Wen, Xiaoyong Beijing, CN 2 1
Xiao, Yuanxiang Beijing, CN 1 1
Ye, Liang Beijing, CN 21 109
Zhang, Yanming Beijing, CN 6 6
Zhao, Qianyun Beijing, CN 1 1
Zhou, Changjing Beijing, CN 1 1
Zhou, Shaowei Beijing, CN 7 2

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