China Oilfield Services Ltd – Company Profile China Oilfield Services Ltd – Company Profile

China Oilfield Services Ltd (COSL), a subsidiary of China National Offshore Oil Corp is an integrated oilfield services company. The company’s services cover each phase of offshore oil and gas exploration, development and production. Its products portfolio includes logging and perforation equipment, oilfield chemicals, well completion tools, sand control tools and screens, high precision seismic acquisition systems, and accommodation rigs, marine support vessels and drilling fluid. COSL's services portfolio includes subsea engineering, pipe inspection and repair, directional drilling, rig management,...