Drilling fluid methods and composition

Details Drilling fluid methods and composition Drilling fluid methods and composition

1990-04-27

1991-04-16

Suchfield, George A.

Boring or penetrating the earth

Processes

Boring with specific fluid

252 8511, E21B 200, C09K 700

Patent

active

050074890

ABSTRACT:
A method is provided for the prevention of balling of formation cuttings upon the surface of drilling equipment and for lubrication of said equipment used in conjunction with subterranean well operations. An aqueous system is prepared to which is added a composition of a water insoluble polyglycol having a molecular weight of from between about 1,200 and about 10,000, an emulsifying surfactant having a hydrophilic/hydrophobic balance of about 4 or more, and a hydrotrope. An additive for use in the method also is disclosed.

REFERENCES:
patent: 1970578 (1934-08-01), Schoeller et al.
patent: 3223622 (1965-12-01), Lummus et al.
patent: 3238141 (1966-03-01), Gatza
patent: 3728259 (1973-04-01), Christman
patent: 3762485 (1973-10-01), Chesser et al.
patent: 4230587 (1980-10-01), Walker
patent: 4561985 (1985-12-01), Glass, Jr.
patent: 4614235 (1986-09-01), Keener et al.
patent: 4776966 (1988-10-01), Baker

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