Method for making definitive Abandonment of the oil wells in highly degraded areas with Groundwater formation.

摘要

Suitable to abandon Wells out of production and in any activity requiring an effective means to Mow definitely Geological zones intersected by Drilling.Once the well calibrated, widens the area where a fixed retainer Inflatable, until you get to the training, sweeping the insulation casing, Cement and invaded Zone of cortex, in a strip of about 3 m. the Reaming was performed with Special tooling and equipment and Bo MBAs strength and desirable characteristics for such purpose.The First expansion area or the deepest should be performed above and below the water companies. Once recovered the ensanchadora Tool is low, the taponera with Inflatable Packer to the position of the Ensanche.By swelling Cement Packer expands until the Court of the Security PIN, Regulators of the inflation pressure, the Inflatable Plug is fixed to the walls of the training.Once released the taponera Stopper installed, Cementing the area from the Stopper installed lifting a Cement column will all spaces from the plug upwards, Reaching areas with degraded without Cement and casing corrosion, High Efficiency to provide a Seal.For complete abandonment made a Second expansion above the Ground to isolate and cut the production Pipe and the guide Pipe 3 m to 2.5 m, recovers, then put the Stopper in the widened area to repeat the operation described in the Deep level, and then Cemented to the Ground to complete the operation.