Freeze and Hot Tap Case History #5

Objective: Freeze casing to replace damaged casing below orbit valve.

Well Information: Low pressure (2,000kPa) sweet gas well; 114mm mono-bore completion with the pipe below the bell nipple bent.

Procedure: Fill surface casing will water. Install cribbing and dry ice around casing. Install pumping equipment and pressure test, inject gel into production tubing and maintain dry ice until freeze plug is generated. Pressure test plug, replace tubing and install new valve. Pressure test, maintain pressure above plug, and thaw.

Time on location: 14.5 hours