METHOD OF WELL REPAIRS Russian patent published in 2002 - IPC

Abstract RU 2188317 C1

FIELD: methods of mineral mining; applicable in recovery from the Earth crust of oil, water, gas condensate, etc, during repairs of operated wells. SUBSTANCE: method includes perforation of well walls and build up of differential pressure. Preliminarily, mechanical properties of ground samples are investigated and value of differential pressure is determined for change of ground structure resulting in increase of its permeability in well zone. During perforation or after it, differential pressure is built up not less than rated one, and it is maintained up to increase of fluid production rate. Differential pressure value not less than rated one is maintained up to stop rising of fluid production rate. EFFECT: higher efficiency of increase of well production rate. 2 cl, 2 dwg

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RU 2 188 317 C1

Authors

Kovalenko Ju.F.

Kulinich Ju.V.

Karev V.I.

Titorov M.Ju.

Lesnichij V.F.

Samokhvalov G.V.

Dates

2002-08-27Published

2001-02-16Filed