METHOD OF INSULATING WATER-DEVELOPMENT STRATA Russian patent published in 2000 - IPC

Abstract RU 2152507 C1

FIELD: oil and gas production. SUBSTANCE: invention can be applied when performing insulation operations in borehole by installation of cement bridging by balance technique. Method consists in exposing water-development stratum, washing hole, injecting specified volume of grouting mortar, forcing it into casing string-borehole annulus, and removing extra grouting mortar, while simultaneously expanding borehole. Grouting mortar is prepared by adding to cement mortar a special plasticizing reagent or water-treatment station waste. During cement hardening wait state, counterpressure on the bed to be insulated is exposed. EFFECT: improved reliability and quality of insulation due to improved adhesion of grouting material to stratum rock. 3 dwg, 1 tbl

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RU 2 152 507 C1

Authors

Studenskij M.N.

Vakula A.Ja.

Bikbulatov R.R.

Kateev R.I.

Kateeva R.I.

Gabbasov T.M.

Dates

2000-07-10—Published

1997-07-08—Filed