Shandong Qilong Offshore Petroleum Steel Pipe Co., Ltd

Shandong Qilong Offshore Petroleum Steel Pipe Co., Ltd (山东祺龙海洋石油钢管股份有限公司) is the largest conductor pipe manufacturer in China, headquartered in Dongying, Shandong Province, at the core of the Yellow River Delta economic development zone. The company specializes in offshore drilling equipment R&D, manufacturing, and oilfield services, with a registered capital of 141.96 million RMB and total assets exceeding 300 million RMB. Core business includes offshore drilling conductor pipes (mechanical snap-lock and threaded types), drilling risers, surface casing, SAWL oil/gas transmission line pipe, pipe anti-corrosion coating, and offshore piling services. Qilong has established an integrated six-in-one production system covering conductor pipe R&D, pipe body manufacturing, connector manufacturing, final assembly, full-pipe testing, and field services. Products have proven performance in deepwater, high-temperature high-pressure, and ultra-deepwater applications. The company holds API 2B, 5B, 5CT, and 5L certifications and also manufactures proprietary quick-assembly connectors (KZ, LZ, LC series) for conductor pipe and riser systems.