HOUSTON – Wood Group Mustang Norway (WGMN) says the first newbuild semisubmersible drilling rig incorporating its GG5000 floating hull design has been delivered to COSL Drilling Europe (CDE).
COSLProspector, which is set to work offshore Norway, can work in water depths of up to 1,500 m (5,000 ft) and drill wells up to 7,600 m (25,000 ft) deep.
WGMN was responsible for the basic design and participated in the detailed design of the semisubmersible hull and main marine systems. The company adds that the 50,000 man-hour project was engineered to Norwegian Petroleum Directorate (NPD) standards.
“The delivery of the rig as designed is the result of a highly successful collaboration among WGMN, CDE and Yantai CIMC Raffles Shipyard,” said Otto Søberg, president of WGMN. “We worked closely with CDE to ensure the design of the rig would meet its needs and objectives and with the shipyard to deliver the rig as planned, thereby avoiding costly construction modifications common to the industry.”
Previously WGMN performed the modification design and engineering for three other CDE drilling rigs:COSLPioneer, COSLInnovator, and COSLPromoter.
WGMN is providing engineering services for another rig to CDE’s parent company, China Oilfield Services Ltd. (COSL), which selected the A5000 semisubmersible drilling rig design for its newbuildHYSY982. This rig is expected to operate in the South China Sea. Scope of work includes detailed design work for the hull, marine systems, and integration of the drilling equipment package.