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Technical expert escorts Shuang-tan deep well coring
Release time:2018/5/28 14:50:33 Read:503

Shuang-tan xx well is a key exploration well in Southwest Oil and Gas Field Branch. It is designed for drilling and coring in 5 7 / 8 "hole of Chi Hsia Formation. The coring section of the well is over 7400 m, the hole size is small, the dolomite formation is broken, and the coring is very difficult. The drilling and coring task was carried out by Drilling and Production Technology Company, and the first barrel coring operation was completed on February 6, 2018. The coring footage was 3.00 m, the core length was 1.74 m, and the recovery was only 58.0 %.

In order to improve the core recovery and ensure the quality of coring service, the company recently sent two experts, Chen and Wang to Shuang-tan xx well for technical support and guidance. Firstly, according to the situation of the first barrel coring, they listened to the report of field technicians, and analysed the formation characteristics, the difficulty of coring and the reason of low recovery Then, according to the coring experience of the adjacent wells, such as Shuang-tan x well, Shuang-tan well and Shuang-yu xxx-x well, the coring process is optimized. At the same time, the two experts also carried out on-site work inspection and Checked out the security risks to ensure the safety of production during the Spring Festival.

At present, the second barrel coring operation has been completed in Shuang-tan xx well, the core recovery is 100%, and the coring quality is obviously improved.




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