METHOD OF WELL REPAIRS

methods of mineral mining; applicable in recovery from the Earth crust of oil, water, gas condensate, etc, during repairs of operated wells. SUBSTANCE: method includes perforation of well walls and build up of differential pressure. Preliminarily, mechanical properties of ground samples are investig...

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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
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 mining; applicable in recovery from the Earth crust of oil, water, gas condensate, etc, during repairs of operated wells. SUBSTANCE: method includes perforation of well walls and build up of differential pressure. Preliminarily, mechanical properties of ground samples are investigated and value of differential pressure is determined for change of ground structure resulting in increase of its permeability in well zone. During perforation or after it, differential pressure is built up not less than rated one, and it is maintained up to increase of fluid production rate. Differential pressure value not less than rated one is maintained up to stop rising of fluid production rate. EFFECT: higher efficiency of increase of well production rate. 2 cl, 2 dwg