CNPC USA Achieves Breakthrough with Successful HPHT Packer Deployment in Sichuan Basin
The CNPC USA Completion Team has successfully developed high-temperature, high-pressure (HTHP) production packers rated for 200°C/105 MPa (400°F/15ksi), meeting the API-11D1 V0 "zero bubble" standard. These tools were recently deployed in the Sichuan Basin with the support of CNPC Southwest Oilfield and CNPC Chuanqing Drilling Corporation.
The 7-5/8-inch retrievable production packer underwent a comprehensive functional test, including setting, sealing, and cut-to-retrieve operations, in a key CNPC exploration well, achieving successful results. Additionally, the 7-inch production packer was deployed in a deep production well at 4,400 meters, where it withstood multiple acidizing cycles and well testing.
The successful application of this HPHT production packer marks a significant technological advancement for CNPC, effectively bridging a critical technology gap.
