METHOD OF REUSING EXHAUSTED DRILLING MUD Russian patent published in 2004 - IPC

Abstract RU 2229494 C1

FIELD: oil and gas production. SUBSTANCE: exhausted drilling mud accumulated during development of oil and gas wells is treated with coagulant-flocculant, after which mixture is separated on centrifuge into liquid and solid phases, which are immediately suited to reuse. Coagulant-flocculant utilized is an organomineral combination comprising 70-97% calcium oxide, 1.0% polyglycol, 1.0% oligosaccharide, and 1-28% monosaccharide. EFFECT: reduced expenses, increased environmental safety, and improved quality of reuse. 1 dwg, 1 tbl

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RU 2 229 494 C1

Authors

Zobnin I.V.

Anan'Ev A.N.

Dolgikh A.E.

Likhovidov A.V.

Kanonerov V.P.

Dates

2004-05-27—Published

2002-09-17—Filed