Shandong Zeen Decoration Material Co., Ltd. , https://www.zeendecor.com
Pre-set diamond drill bit to create the shortest time record of turbine drilling
**Abstract**
Recently, good news has emerged from the Chuanxi Zangshang pre-occupation front line. The Dushen-1 well, constructed by the Sichuan Drilling Company’s 70139XN drilling team, successfully applied turbine drilling technology in a highly abrasive section of the formation, specifically between 2,530 and 10,777 meters. The operation was completed in just 23.4 days, with a total footage of 467 meters, setting a new record for the shortest turbine drilling time in the Shoudi Formation within the western Sichuan area.
The Dushen-1 well is a pre-exploration vertical well located in the Chengdu Sag of the western Sichuan Depression. It was designed to target the Middle Triassic Leikoupo Formation and the Upper Triassic Maantang Formation, with a total designed depth of 6,350 meters. The well aims to explore deeper geological structures and unlock potential hydrocarbon reserves in the region.
Before the drilling began, the team meticulously prepared all necessary materials based on the drilling plan. They developed targeted technical measures and emergency response strategies, and conducted detailed technical briefings to ensure smooth operations. During the drilling process, they focused on optimizing mud performance, selecting optimal drilling parameters, and strictly following operational procedures to guarantee the quality of the turbine drilling.
The application of the "pregnancy diamond bit + turbine" drilling technology in the Shoudi Formation achieved an impressive drilling speed, significantly reducing the time required compared to previous operations. In addition, the team successfully drilled through a high-pressure fractured gas layer in the Xiaotangzi Formation, marking the first time oil and gas shows were recorded in the western Sichuan area. This achievement represents a major breakthrough in exploration efforts and opens up new possibilities for future development in the region.