Objectives: Download PDF

Run 9 5/8” casing (13 3/8” shoe at 30 degrees) to depth in a Qatif dual-lateral well through the problematic Biyadh shale
Cement as per program
Achieve rapid drill out

Well Background & Challenges:

Offset wells had experienced sloughing shale resulting in two recent strings set high
Deployment well had experienced several tight spots on wiper trips
Back reaming and extra circulation highlighted hole difficulties


Back reamed and reamed trouble zone for 2 hrs
Casing landed and cemented as planned
Drilled out with PDC in 15 minutes

Value to client:

Avoided both stuck casing and tripping casing
Avoided extra clean out trip
Minimized drill out time
Proved technology for future projects