METHOD OF WELL COMPLETION

methods of mineral recovery. SUBSTANCE: method includes perforation of well walls and creation of differential pressure. Preliminarily, mechanical properties of formation ground samples are tested, and rated value of differential pressure required for changing the ground structure to increase its pe...

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Bibliographische Detailangaben
Hauptverfasser:	KOVALENKO JU.F, KULINICH JU.V, LESNICHIJ V.F, SAMOKHVALOV G.V, KAREV V.I, TITOROV M.JU
Format:	Patent
Sprache:	eng ; rus
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:	methods of mineral recovery. SUBSTANCE: method includes perforation of well walls and creation of differential pressure. Preliminarily, mechanical properties of formation ground samples are tested, and rated value of differential pressure required for changing the ground structure to increase its permeability in well surroundings is determined. During perforation or after it, differential pressure is built up with value not less than raised one and maintained said value until well is changed to operating conditions. Preferably differential pressure shall be maintained within rated value until cessation of fluid output. Proposed method is used for recovery of oil, water, gas-condensate, etc., in well completion. EFFECT: higher efficiency of well production rate increase. 2 cl, 4 ex