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
Production and Optimization

With an integrated completion services chain, COSL is capable of providing customers with completion design, manufacturing of completion and sand control strings, as well as on-site operations. Services are now available in China, the Southeast Asia, and the Middle East.

The main services include:

completion designing and optimization

completion and sand control tooling

completion and sand control integrated service

completion engineering and supervision services

completion equipment providing and manpower services

Multi-stimulation Vessel of HYSY640

Delivered at the end of 2014, the Multi-stimulation Vessel "HYSY640" is the epitomized product of COSL's integrated experiences in production-optimization, marine operations, and mechanical engineering. This vessel is equipped with the latest and most cost-effective technologies for fracturing, acidizing, and sand control., Being a ship, Multi-stimulation Vessel "HYSY640" has an unrestricted operations area, taking its professional and highly-skilled personnel to any operator well-site world-wide.

stability in rough conditions

rapid deployment and rig-up

remote acquisition and control业

large-capacity treatment capability

high-rate-high-pressure pumping

DPII dynamically positioning system

Learn More