Case History: High Angle Re-Entry
- West
Africa
- A
long open hole section with a 1200 meter fish, entirely in salt,
left shallow formations and the casing shoe at 463 meters exposed to
the reservoir at 1470 meters TVD. Fishing was unsuccessful and a
relief well was planned to intersect below the fish to plug and
abandon the open hole across the reservoir.
The Wellspot™ Radial Gradient Ranging tool guided directional drilling of the relief well to re-enter the original open hole 5 meters below the fish. A cement plug was placed in the original hole from TD to the bottom of the fish.