HOUSTON – InterMoor, an Acteon company, has completed its first permanent mooring work in the Lufeng oilfield, South China Sea. This project was also the company’s first for Chinese installation contractor China Offshore Oil Engineering Co. Ltd.
During the five-month contract, InterMoor’s work included project management, engineering, procurement, and installation for a new buoy turret mooring system for the upgraded Nanhai Sheng Kai FSOU in LF 13-2 field.
Additionally, InterMoor spearheaded the installation of a new 8-in. flexible flowline and riser between the buoy turret mooring system and the LF 13-2 wellhead platform. The scope of work also included temporary replacement of the buoy turret mooring system in LF 13-1 field to accept the interim Nanhai Kai Tuo FSOU.
InterMoor says it also designed custom devices to handle the jacketed spiral strand wires. With no large storage reels on the anchor-handling tug supply vessel, the jacketed spiral strand wires were spooled on the main winches using custom winch adapters.
InterMoor and sister company Offshore Installation Services developed procedures so operations could be performed simultaneously with divers, ROV, and the anchor-handling vessel in proximity to the buoy turret mooring system.
Acteon’s 2H Offshore provided riser installation engineering; and Aquatic supplied additional offshore personnel and equipment for deploying the flexible riser.
LF 13-2 oilfield is in the western part of block LF 08 in the mouth of Pearl River basin in water depths of approximately 132 m (433.1 ft.). The field is about 210 km (130.5 mi.) southeast of Hong Kong and 12 km (7.5 mi.) northwest of LF 13-1. The Nanhai Sheng Kai FSOU is operated by CNOOC and is in LF 13-1 oilfield, which is in the South China Sea about 370 km (230 mi.) southeast of Hong Kong in approximately 140 m (469 ft.) of water.