DSI PBL®BYPASS SYSTEM helped in successfully fishing and recovering a stuck logging tool string for a major oil & gas service company and IOC in a deep well in Mexico
Challenge
Two 4.3/4” OD PBL Multiple Activation Bypass Tools were utilized for this project. During the logging operation, the logging tool string got stuck at a depth of 5,881m. The operator decided to RIH an overshot fishing assembly with a 4-3/4” PBL bypass tool.
Solution
The fishing BHA was pulled out of hole dry, and once checked the overshot confirmed that the fish was completely recovered. We laid down all wireline tools recovered (the entire logging tool string recovered from the well) and the PBL was successfully deactivated 2 stands below the rotary table with the deactivation steel balls installed in the PBL with a pressure of 3,200 psi to deactivate the PBL. All BHA, including the PBL, was laid down.
Conclusion & Recommendation
A successful fishing operation, eliminating the gas dispersed in the mud system and achieving the complete fish recovery to the surface pulling a dry string, without the need for dedicated trips for fluid displacement due to the high-pressure conditions encountered while tripping in the hole.
