Freeze and Hot Tap Case History #21
Objective: Re abandonment
Well Information: Well was previously abandoned but the bank where the well was located had eroded away leaving 8 meters of abandoned casing exposed in an environmentally sensitive area.
Procedure: Well was only accessible via helicopter. Crew and equipment were flown into location. Climbing crew prepared and shored bank with a wire mesh. Hot tap crew repelled down bank and inspected casing stump. A hole was discovered in casing stump already. Welding equipment was lowered down and an automatic feeder was installed below hole and casing was cut off. A new cap with ball valve was welded onto new casing stump.
Time on location: 8 hours