Snubbing Case History #42
Objective: Rig up Snubbing unit. Drill out surface plug.
Well Information: Surface plug set in 114.3mm casing at surface. Unknown pressure below.
Procedure: Rig up Snubbing unit. Pressure test flanges. Lower BHA (Bit, motor, float sub) plus one joint plus tubing into stack. (Tubing swivel head installed above) Tag plug, start circulating fluid. Wait for returns at tank. Start drilling surface plug using traveling slips to hold tubing. Once through plug, pick up one joint and circulate down. Circulate until clean. Remove swivel head. Install tubing hanger and land string in casing bowl. Rig out snubbing unit.
Time on location: 7 hours