The company carries out drilling with pressure opening and plug type single seal

On February 13, 2017, at 14 noon, with pressure opening, plug type single seal drill.

The drill is divided into 11 processes:

1) hole machine preparation (rush repair 1 groups)

2) installation of welded four way pipe fittings (rush repair 2 groups)

3) install plywood valve (rush repair 2 groups)

4) dimension measurement of hole opening, sealing and plugging (rush repair, 1 groups)

5) opening machine debugging (rush repair 1 groups)

6) the opening of the hole and the dismantling of the hole machine after the completion (rush repair 2 groups)

7) install plug type occluder for plugging operation (rush repair 1 groups)

8) after plugging test, make the plugging effect meet the requirements (rush repair 1 groups)

9) after the closure of the balance, and remove the occluder (rush repair 2 groups)

10) install the lower stopper and do down operation. (rush repair 1 teams)

11) remove the plug, install the blind plate, resume the drill site and clean it. (rush repair 2 teams)

Equipment used:

HT300 hole opening machine KKLX300 TCP300 Lianxiang hole cutter

FDST300x325 blocked three pass FDQ300 occluder and FDLX300 blocked the case

HT75 opening machine, BF50 plywood valve, FDT325 plugging head

Vessel pressure: 15Mpa