Openhole perforating

Wells – Processes – Perforating – weakening – bending or separating pipe at an...

Reexamination Certificate

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C166S311000, C175S004540

Reexamination Certificate

active

07984761

ABSTRACT:
An underbalanced perforating system is disclosed for use in openhole completions to maximize the wellbore and matrix cleanup efficiency, to connect natural fracture patterns, and/or to enable application of new drilling fluid technology in difficult subsurface environments. The perforating system can be used for any hydrocarbon bearing formations with any lithology.

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