METHOD FOR DOWNHOLE FILTER REMOVAL FROM GRAVEL PACKAGE

摘要

FIELD: oil and gas industry, particularly methods for equipment removal from oil wells. ^ SUBSTANCE: method in accordance with the first variant involves lowering pipe string provided with griping tool and perforating tool in well; engaging screen with gripping tool; forming at least one orifice in screen by perforating tool; selectively supplying fluid in well; freeing screen of gravel by means of said fluid and removing the screen with the use of pipe string. In accordance with another embodiment after orifice perforation screen is selectively subjected to vibration action and then screen is removed from well with the use of pipe string. ^ EFFECT: simplified screen removal and decreased costs. ^ 20 cl, 4 dwg