MANNER OF OIL WELL COMPLETION Russian patent published in 2003 - IPC

Abstract RU 2200230 C2

FIELD: oil production industry, secondary drilling-in of pools under mode of oil well depression. SUBSTANCE: manner includes sinking of casing string with filter fitted with hollow chokes with viscous-plastic substance protruding beyond filter body into well, sinking of tubing string with cutting funnel into well to depth somewhat above upper hollow choke, flushing of well, stepwise running of tubing string and cutting of ends of hollow chokes with funnel. Body of well pump is lowered into well on tubing string with cutting funnel. Level of fluid in well is decreased to required preset value of depression after flushing of well, before cutting ends of hollow chokes. On completion of cutting of ends of hollow chokes body of well pump is immediately lifted to planned depth for operation. Then plunger of pump is lowered on sucker rod and well is put on stream. EFFECT: reduced labor input, simplified process of decompression of well, raised efficiency of secondary drilling-in of productive pool. 1 dwg

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RU 2 200 230 C2

Authors

Jusupov I.G.

Gabdullin R.G.

Strakhov D.V.

Salakhova Z.R.

Dates

2003-03-10—Published

2001-02-05—Filed