IWCF Level 2 Drilling case studies
IWCF Level 2 Drilling · Put your knowledge to work in context.
The Online Level 2 Drilling Well Control & Well Intervention Pressure Control is one of the eLearning programmes listed by the International Well Control Forum (IWCF), an independent body that describes itself as setting training standards for well control training, accreditation and certification. It sits alongside IWCF's Level 1 Well Control Awareness course and its classroom Drilling Well Control and Well Intervention Pressure Control programmes, and it is delivered online rather than at one of the accredited centres in the IWCF network. The IWCF Level 2 Drilling case studies are 5 cases and about 2,938 words.
1Kick while drilling: kill mud and gauge interpretation
At 06:20, while drilling an 8½-in hole at 9,500 ft TVD with 12.0 ppg water-based mud, the pump pressure drops 180 psi and ROP briefly increases. Gas-cut mud appears on the shakers.
607 words, about 3 min2Wet trip and trip-tank gain: swab kick or ballooning?
While pulling out of hole at 8,200 ft TVD with 11.4 ppg water-based mud, the crew pulls five stands dry. Stand six comes out wet with gas-cut mud, and the trip tank shows a 4 bbl gain over the last three stands.
602 words, about 3 min3Gas migration after shut-in: controlling pressure without breaking the shoe
After a 12 bbl kick, the well is shut in on the annular BOP. Initial SIDPP is 500 psi and SICP is 700 psi.
549 words, about 3 min4Wireline lubricator length and pressure testing on a live well
A wireline crew is preparing to run a 7.5 ft perforating gun into a live well with 3,200 psi shut-in tubing pressure. The lubricator is 12 ft long and rated 10,000 psi.
595 words, about 3 min5Coiled tubing becomes light while running into a live gas well
A coiled tubing unit is rigged up on a live gas well with 4,200 psi shut-in wellhead pressure. The CT is 1.75-in OD with 0.134-in wall.
585 words, about 3 min