Application of soluble ball technology in large deviated wells in Bohai Oilfield
Offshore oil fields all use cluster wells,Most wells have large deviations,With the deepening of oilfield development and production,the number of horizontal wells and highly deviated wells gradually increases,and the workload of well repair increases.Due to the difficulty of conventional wire operation to remove blockers when the inclination is greater than 65 °,and the high risk,long construction period,and high cost of continuous tubing operation,there are great difficulties in setting production packers for horizontal wells and highly deviated wells.During the completion and repair processes of horizontal wells and highly deviated wells,the use of ball seats combined with soluble ball to achieve column sealing and seal the packer can safely and efficiently complete construction tasks
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