Location
De Soto Parish, Louisiana
Application
9.875″ Vertical Section
Tool
Ulterra’s 8″ Mitigator™
Bit Size/Type
9.875″/Various
Drilling Objective
An operator in DeSoto Parish, Louisiana wanted to improve 9.875″ drillout performance, targeting depths out of more than 8,000 ft.
Challenges
- Increase frequency of reaching pull point (past 8,000 ft.)
- Reduce frequency of catastrophic dulls caused by drill bit over-engagement
Solution
Collaborating with the customer, our team recommended adding a Mitigator™ to the BHA to reduce torsional shock in the BHA to improve drilling dynamics.
Results
Across six runs with the Mitigator, this operator:
- Increased ROP by 17%
- Saved a total of 21 hours
- Improved outer dull conditions from 3.7 (standard BHA) to 3.2 (with Mitigator)
- Increased average footage drilled from 7,734 ft. (standard BHA) to 8,082 ft (with Mitigator)
More Performance Details
| Standard BHA (13 Runs) | BHA with Mitigator (6 Runs) | |
| Average Depth Out | 7,734 ft. | 8,082 ft. |
| Average Footage | 5,534 ft. | 5,927 ft. |
| Average Hours | 40.1 hours | 36.6 hours |
| Average ROP | 138 ft/hr | 162 ft/hr |
| Average Inner Dull Grade | 1.8 | 1.8 |
| Average Outer Dull Grade | 3.7 | 3.2 |
| % of Runs Drilled Past 8,000 ft | 60% | 83% |
