Study on the Analysis and Countermeasures for Wellbore Diameter Expansion in the Cap Rock Section of Horizontal Wells in the Wenxi-1 Gas Storage Reservoir
This paper analyzes the drilling situation of the second phase of horizontal wells in the Wenxi-1 gas storage reservoir of the Tuha Oil field.It summarizes the causes of the excessive wellbore diameter in the cap rock section and conducts experiments on optimization measures such as pressure-bearing program optimization,personalized drill bit selection,drilling fluid performance optimization,and drilling process control.These measures effectively addressed the issue of excessive wellbore diameter expansion in the cap rock section of the third phase of horizontal wells in this gas storage reservoir.
gas storagecap rock sectionexpansion rateformation bearing pressure