Boring or penetrating the earth – Processes – Boring with specific fluid
Patent
1996-08-06
1998-10-20
Tsay, Frank
Boring or penetrating the earth
Processes
Boring with specific fluid
175215, 166285, E21B 718
Patent
active
058232737
ABSTRACT:
The present invention relates to tools and methods for stabilizing incompetent or otherwise unstable subterranean zones or formations penetrated by a well bore during drilling. The methods basically comprise drilling the well bore through an enlarged portion of an unstable subterranean zone or formation when it is encountered, pumping a hardenable cementitious material through the well stabilization tool while moving the tool through the enlarged portion of the well bore whereby the enlarged portion is filled with the hardenable cementitious material, allowing the cementitious material to harden and then drilling the well bore through the hardened cementitious material.
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Derwent Publications Ltd., London GB; Class LO2, AN 86-244542, XP002028088 & SU 1 209 636A (Perm Poly), Feb. 7, 1986, Abstract.
Beirute Robert M.
Duell Alan B.
Murray Dick A.
Ravi Krishna M.
Rogers Henry E.
Halliburton Company
Roddy Craig W.
Tsay Frank
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