METHOD OF OIL-GAS POOL DEVELOPMENT

development of oil-gas pools applicable in oil production by oil displacement with gas of gas cap or with water of edge water zone. SUBSTANCE: flow string is successively perforated interval by interval, from packer to pool roof. Determined for each interval is injectivity of well to assign rate of...

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Bibliographische Detailangaben
Hauptverfasser:	KOSTANOV I.A, SUSLOV V.A, SEMENJAKIN V.S, SHCHUGOREV V.D
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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Beschreibung
Zusammenfassung:	development of oil-gas pools applicable in oil production by oil displacement with gas of gas cap or with water of edge water zone. SUBSTANCE: flow string is successively perforated interval by interval, from packer to pool roof. Determined for each interval is injectivity of well to assign rate of water and high-density weighted drilling mud injection. Then successively injected into interval of perforation are portions of weighted drilling mud and water to form impermeable partition round bores of producing wells. In so doing, it is not allowed to exceed initial formation pressure by more than 10% in forcing the last portion of weighted drilling mud by water from well to formation. EFFECT: higher oil recovery factor and reduced expenditures for oil production. 3 cl, 3 dwg, 1 tbl