HYDROCARBON-BASED DRILLING FLUID Russian patent published in 2003 - IPC

Abstract RU 2208034 C1

FIELD: oil and gas production. SUBSTANCE: invention concerns washer fluids used for exposing producing formations as well as for boring appraisal wells and extraction of kern with natural oil saturation. Fluid of invention contains, wt %: hydrocarbon dispersion medium (diesel fuel) 72.0-74.0, synthetic fatty acid 1.5-2.0, 46% aqueous sodium hydroxide solution 1,20-1.25, oil-soluble atactic polypropylene (solution stabilizer) 2.0-2.5, and barium sulfate (filler) - the balance. EFFECT: simplified composition and preparation technology and reduced preparation time and expenses. 1 tbl

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RU 2 208 034 C1

Authors

Kleshchenko I.I.

Jagafarov A.K.

Sharipov A.U.

Matjushov V.G.

Dates

2003-07-10—Published

2001-10-22—Filed