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Case Study: PowerDrive Archer RSS Increases ROP by 85% in Eagle Ford Shale Play

High build rate RSS improves drilling performance, eases casing running

Challenge: Improve drilling performance in the Eagle Ford shale play.

Solution: Use PowerDrive Archer high build rate RSS to maximize ROP and reduce cost per foot.

Result: Increased curve ROP by 85%; reduced cost per foot by 27% versus conventional motor BHAs.

Horizontal drilling in the Eagle Ford shale

The Eagle Ford formation—situated in South Texas, USA—has become one of the hottest shale plays in recent times. Many operators are drilling hundreds of horizontal wells to target this reservoir located below the Austin chalk.

These wells are typically drilled with conventional motors, and a high percentage of slide drilling is required to build the curves up to 10°/100 ft. This requirement results in drilling and completion inefficiencies as ROP is reduced, and there are subsequent casing running problems because of high wellbore tortuosity in the curve and lateral sections.

High build rate RSS outperformed conventional motors in same play

PowerDrive Archer RSS has been introduced to drill these high build rate wells, which were previously only possible with motors. The fully rotating RSS immediately delivered two key improvements: In a multi-well project, average curve ROP was 85% faster in the 10 wells drilled with PowerDrive Archer RSS than those drilled with conventional motors. And tortuosity in the curve and lateral was reduced; the clients found that, for the first time, casing could be run to bottom without rotation.

To date, PowerDrive Archer RSS has drilled 17 wells and more than 30,000 ft in the Eagle Ford, with many more wells planned.


Download: PowerDrive Archer RSS Increases ROP by 85% in Eagle Ford Shale Play (0.27 MB PDF)

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PowerDrive Archer RSS Increases ROP by 85% in Eagle Ford Shale Play
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