METHOD OF CASING THE PRODUCTION SEAM IN A WELL

PCT No. PCT/SU88/00235 Sec. 371 Date Aug. 2, 1990 Sec. 102(e) Date Aug. 2, 1990 PCT Filed Nov. 22, 1988 PCT Pub. No. WO90/05832 PCT Pub. Date May 31, 1990.The method of casing off a producing formation in a well includes drilling into the producing formation (19) and reaming the borehole in the prod...

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Hauptverfasser:	VADIM VADIMOVICH ARTYNOV, RASHAT KHASANOVICH FATKULLIN, GABDRASHIT SULTANOVICH ABDRAKHMANOV, RASHID AKHMADULLOVICH KHABIBULLIN, VITALY PETROVICH FILIPPOV, RENAT KHALIULLOVICH MUSLIMOV, SALIKHZYAN MUKHAMETZYANOVICH MINGAZOV, YAROSLAV VASILIEVICH VAKULA, RUSTAM KHAMITOVICH IBATULLIN
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Zusammenfassung:	PCT No. PCT/SU88/00235 Sec. 371 Date Aug. 2, 1990 Sec. 102(e) Date Aug. 2, 1990 PCT Filed Nov. 22, 1988 PCT Pub. No. WO90/05832 PCT Pub. Date May 31, 1990.The method of casing off a producing formation in a well includes drilling into the producing formation (19) and reaming the borehole in the producing formation zone. Then the producing fomation (19) is shut off with a fluid-impervious envelope (14) of profile pipes reamed in the process of their setting by building up a pressure drop thereacross. Then the flow casing string (5) is run into the well and cemented, followed by re-exposing the producing formation (19). The running-in of the flow casing string (5) is terminated upon its having entered the upper part of the fluid-impervious envelope (14).