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Application

99107895/03, 1999-04-05

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Start date

1999-04-05

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Actual filing date

1999-04-05

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Published

2001-02-27

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Inventor

Pen'Kov A.I.Vakhrushev L.P.Koshelev V.N.Rastegaev B.A.Safin D.Kh.Belenko E.V.

(73)

Holder

Pen'Kov Aleksandr IvanovichVakhrushev Leonid PetrovichKoshelev Vladimir NikolaevichRastegaev Boris AleksandrovichSafin Damir KhasanovichBelenko Evgenij Vladimirovich

LUBRICATING ADDITIVE TO DRILLING MUDS Russian patent published in 2001 - IPC

Abstract RU 2163616 C2

FIELD: drilling of oil and gas wells, particularly, lubricating additives to drilling muds. SUBSTANCE: lubricating additive to drilling muds includes synthetic fluid, neutralizing agent and water. It is distinguished by the fact that it contains synthetic fluid in the form of acetal or alphaoleins or polyalphaoleins, higher fat acids from C9 and higher. Neutralizing agent is used in the form of hydroxides of alkali metals. Lubricating additive has the following ratio of components, mas.%: synthetic fluid, 10-35; fat acids, 60-80; neutralizing agent, 0-3; water, the balance. EFFECT: higher dispersibility in aqueous phase of drilling muds, reduced friction coefficient, formed dense lubricating layers stable under conditions of tangential and normal loads. 1 tbl

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RU 2 163 616 C2

Authors

Pen'Kov A.I.

Vakhrushev L.P.

Koshelev V.N.

Rastegaev B.A.

Safin D.Kh.

Belenko E.V.

Dates

2001-02-27—Published

1999-04-05—Filed

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