Group 1 - China National Petroleum Corporation (CNPC) has applied for a patent for a "Continuous Pipe Rotating Cable Joint" with publication number CN120109603A, filed on December 2023 [1] - The patent describes a device that includes a housing, a plug socket connected to ground cables, and an insulated pin assembly, designed for use during the deployment of continuous pipes in wells [1] - CNPC was established in 1990, located in Beijing, with a registered capital of 48.69 billion RMB, and has invested in 105 companies and participated in 5,000 bidding projects [1] Group 2 - China National Petroleum Group Bohai Oil Equipment Manufacturing Co., Ltd. was founded in 2008, located in Tianjin, with a registered capital of approximately 619.77 million RMB [2] - The company has invested in 26 enterprises and participated in 2,543 bidding projects, holding 32 trademark records and 1,382 patent records [2]
中石油申请连续管旋转电缆接头专利,可满足较长行程作业的生产要求