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

COSL is capable to provide customers with integrated solutions of drilling, completion, fracturing design and operation, production test for development of tight gas and coalbed methane.

Logging and Directional Drilling Services

For development unconventional resources we also offer integrated technical services including directional drilling, MWD, LWD, wireline logging, vertical seismic profiling, directional MWD, logging and geological steering.

Service capability：

Directional drilling design and construction

MWD/LWD

Nuclear magnetic resonance logging

Electric imaging logging

Array induction logging

Rotary sidewall coring

High-resolution VSP(Vertical Seismic Profile)

Cross- dipole acoustic remote detection fracturing evaluation

Downhole micro-seismic fissure monitoring

Perforating

Data processing and interpretation