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CORING SERVICE
Underbalanced Drilling
Release time:2017/9/27 16:13:39 Read:1006

The Company has developed self-contained UBD equipment, and established UBD technical standards and operation specifications. It is well experienced in underbalanced drilling with different fluid media through years of research and field practice. Considering severe water sensitive damage and pore pressure extremely sensitive in low-pressure, low-permeability and low-productivity clastic reservoir, full underbalanced operations, involving underbalanced drilling, underbalanced coring, snubbing electric logging, stripping in and out of the hole and snubbing tubing, have been firstly implemented in China so as to prevent reservoir damage through all procedures from drilling to completion. Full underbalanced drilling service ranks the first in domestic UBD market share. 

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