Repsol Eliminates 1 Bit Trip Using NeoSteer CL ABSS, Pennsylvania

Published: 09/30/2019

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After fine-tuning the NeoSteer CL ABSS performance, Repsol saved roughly 2 days on the last well alone, compared with the time it would have taken to drill the well with a conventional BHA.
After fine-tuning the NeoSteer CL ABSS performance, Repsol saved roughly 2 days on the last well alone, compared with the time it would have taken to drill the well with a conventional BHA.

The operator’s challenges

Repsol needed to increase the ROP in the curve, drill the curve and lateral in a single run, and avoid compromising dogleg severity (DLS) or performance in order to meet the plan requirements.

What they tried first

Before using the NeoSteer CL ABBS, Repsol used a conventional 2-run solution—but it did not enhance job performance.

What Schlumberger recommended

Schlumberger proposed using the NeoSteer CL ABSS with a HyperBlade hyperbolic diamond element bit to improve ROP in the soft formations in the curve section and eliminate a trip to change the BHA.

What happened

Using the NeoSteer CL ABSS, Repsol drilled the curve sections at an average ROP of 160 ft/h and an average lateral ROP of 286 ft/h—a 30 ft/h improvement compared with traditional bit-and-RSS-technology. This system also eliminated the need to change the BHA after the curved sections by drilling the curve and lateral sections in a single run. Both of these improvements combined saved Repsol an average of 28.6 h per well.

Repsol plans to use the NeoSteer CL ABSS on more wells in this area in the future.

The NeoSteer CL ABSS
The NeoSteer CL ABSS.
Location
Appalachian Basin, United States, North America, Onshore
Details

Repsol saved 28.6 h and one bit trip per well using the NeoSteer CL curve and lateral at-bit steerable system (ABSS) to drill the curve and lateral sections in a single run.

Products Used