詳細說明

The well is a natural gas well with a daily production capacity of 500000 cubic meters. In December 2021, it was discovered that natural gas was escaping from the C annulus, which could not guarantee safe production and the well was shut in. After verification, there is corrosion perforation at 13.5-14m on the surface casing of the well, with a diameter of 6-8mm. The effective sealing distance is short, the airtightness requirement is high, and the sealing difficulty is high. On August 15, 2022, using plugging agent 1 65 tons, mixing plugging agent slurry 1 9 square meters, block well section 19 5- 8.  0m, totaling 11 5m, meeting the sealing requirements of Party A and remaining effective, completing the integrity treatment of the first red well in the East China Sea.