FIELD: oil and gas industry.
SUBSTANCE: removal of tubular metal structures in a wellbore. The method comprises inserting a downhole wireline tool having an anchor section and a machining device into the first downhole tubular metal structure, placing the tool opposite the first section of the first tubular structure so that the machining device is located at a distance of 8-12 meters from the first end of the first tubular structure, and the anchor section is placed above the machining device, anchoring the tool opposite the first section, separating the first section, having a length of 8-12 meters, from the second section of the first tubular structure by machining the first tubular structure, removing the first section from the well by pulling the cable together with a tool having a first section 8-12 meters long to create a new first end of the first tubular structure in the well, re-inserting the tool into the first tubular structure, placing the tool against the new first section of the first downhole tubular metal structure so that the machining device is placed at a distance of 8-12 meters from the new first end of the first downhole tubular metal structure, and the anchor section is placed above the machining device, anchoring the tool opposite the new first section, separating the new first section, having a length of 8-12 meters, from the rest of the first tubular construction and extraction of a new first section from the well by pulling the cable along with a tool having a new first section 8-12 meters long.
EFFECT: optimization of the well with the possibility of its further operation.
15 cl, 16 dwg
Authors
Dates
2023-10-11—Published
2020-01-07—Filed