Petrochina Company Limited

Anton Bailin Oilfield Technologies Co., Ltd.

Shusheng Li

Zhe Li

Wei Gao

Bailin Pei

Lei Shen

Xianwen Li

Yong Ding

Yajuan Wang

Xu Ma

Xiaorui Liu

Yun Ling

Zhanguo Ma

Changjing Zhou

Liang Ye

Qianyun Zhao

Yanming Zhang

Yuanxiang Xiao

Xinxing Ma

Man Bi

Huaqiang Shi

Hua Shi

Baochun Chen

Mingfang He

Yonghong Gu

Hongying Li

Ruifen Hao

Xiaoyong Wen

Guohui Su

Qiaorong Han

Yangming Hu

Xuan'ang Lai

Shaowei Zhou

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.

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

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Beijing, China

Shusheng Li