Integrated Services
Geotechnical Surveying
Subsea Engineering
Casing & Tubing Running
Pipe Inspection & Repair
Directional Drilling
Drilling & Completion Fluid
Environmental Protection Services
Production and Optimization
Well Completion
Liftboats & Accommodation Rigs
Marine Support Vessels
Manufactures & Products
Unconventional Operations
Business Contact
Pipe Inspection & Repair

COSL maintains three domestic-sited operation bases containing six workshops and inventories more than 120 complete sets of specialized and specified equipments. All bases are fully complemented by a team of experienced and highly trained professional personnel. Adhering to API 5CT, API SPEC7-1, and related standards, COSL can confidently offer its customers high standards of excellence in providing inspection and repairs to oilfield equipments.

The main services include:

oilfield non-destructive testing ( NDT )

drilling tools NDT

down-hole tools assembly and disassembly

pipe thread machining

BOP repair and installation

pipe cleaning and pressure testing

oil tools rental