Patent ID: 6478088
Filing Date: 2002-11-12
Classification: E21B

Abstract:
A method for the formation of a plug (1) in a petroleum well (2) extending from the earth's surface or the sea floor to a petroleum reservoir, which well is lined with casing (3, 3â€²), comprising the following steps:a) forming at least one opening (4) in the casing (3) at a distance from the earth's surface, b) providing a liquid curable resin in at least a portion of the opening (4) and an adjacent area of the well (2), which material after curing forms a plug (1) in the well, wherein in step a) the opening (4) is formed by a milling tool (12) which is driven by a hydraulic motor (22) which is energised by hydraulic fluid supplied through coil tubing, jointed pipe or wireline (11), and which is anchored to the casing (3) by mechanical anchors (14), and in step b) the material which is provided in at least a portion the opening is a liquid curable resin.