Method for stabilizing boreholes

Details Method for stabilizing boreholes Method for stabilizing boreholes

1992-01-21

1993-05-18

Suchfield, George A.

Boring or penetrating the earth

Processes

Boring with specific fluid

166294, 507124, 507140, E21B 2100, E21B 33138

Patent

active

052112500

ABSTRACT:
A method of stabilizing a wellbore being drilled through both shale and sandstone zones. A shale stabilizing agent and finely divided particulate material are combined in a water based drilling fluid to provide the stabilization.

REFERENCES:
patent: 2573690 (1951-11-01), Cardwell et al.
patent: 2650195 (1953-08-01), Cardwell et al.
patent: 3053764 (1962-09-01), Hummel
patent: 3989630 (1976-11-01), Walker
patent: 4957174 (1990-09-01), Whitfill et al.
patent: 4988450 (1991-01-01), Wingrave et al.
patent: 5072791 (1991-12-01), Whitebay
patent: 5076944 (1991-12-01), Cowan et al.
patent: 5114597 (1992-05-01), Rayborn et al.
EPC Application No. 89302558.5, Wingrave et al., Sep. 1989.

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