According to our report, on March 9th, the 90103HB drilling team of the Western Branch of North China Petroleum Engineering successfully completed the drilling construction task of the SHZ4-5X well in 68.35 days, setting a new record for the shortest drilling cycle of a tertiary structural well in the Shunbei Oil and Gas Field, and contributing to the acceleration of the capacity construction of the Shunbei Oil and Gas Field.

This well is a tertiary structural development well deployed by Northwest Oilfield in the Shunbei block. The second spud section contains poorly drillable formations such as variegated conglomerates and basalts. The construction of the target layer requires drilling through two fault zones, which is prone to complex downhole situations such as wellbore instability, lost circulation, and overflow. To ensure the smooth progress of drilling operations, the Western Branch of North China Petroleum Engineering established a technical research team to provide on-site guidance, strengthen the analysis and comparison of adjacent well data, fully investigate and grasp the geological lithology of the area, and discuss and optimize the drilling construction plan. Leveraging the integrated advantage of engineering geology, a dynamic technical management method featuring "execution, comparison, evaluation, and adjustment" was adopted to timely adjust technical instructions. The use of strong parameters such as "high displacement, high pump pressure, and high speed" drilling allowed a single trip footage of 3092.1 meters, setting a new record for the single trip drilling footage of tertiary structural wells in the Shunbei oil and gas field, achieving optimized and rapid drilling progress.

(Zhang Jun, Chang Wenxin, Yu Anran)

(Responsible editor: Liu Xiaoxi)