METHOD FOR LIMITING WATER INFLUX IN PRODUCTION WELL Russian patent published in 2013 - IPC E21B43/32 

Abstract RU 2477789 C1

FIELD: oil and gas industry.

SUBSTANCE: method involves descending of hydraulic jet perforator at specified depth, descending of tubing string with packer into the well, pumping of fracturing fluid and sand-carrier with restraining material into tubing string, process exposure, well putting into operation. According to invention the data of geological-geophysical researches help to determine the character of formation saturation and position of gas-water contact. Hydraulic jet perforator is descended at 5-10 m below gas-water contact. There performed is a hydraulic fracturing of the formation in interval opened by hydraulic jet perforator. Water saturated part of the formation is developed via tubing string and gas saturated part of the formation - via annular space. The restraint of water influx into the well is adjusted by water withdrawal through tubing string.

EFFECT: limitation of water influx into operation well.

1 dwg

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RU 2 477 789 C1

Authors

Panikarovsky Evgeny Valentinovich

Panikarovsky Valentin Vasilievich

Schupletsov Vladimir Arkadievich

Panikarovsky Vasily Valentinovich

Sagidullin Maksim Aleksandrovich

Kuzmich Ludmila Aleksandrovna

Dates

2013-03-20Published

2011-09-26Filed