Weatherford International has released its Revolution rotary-steerable system (RSS) at the Unconventional Resources Technology Conference (URTeC).
Revolution RSS provides capabilities for diverse directional drilling applications in complex wellbores. The sensors and telemetry use by the Revolution RSS gives operators a method for drilling from vertical to horizontal in a single run. With the point-the-bit design and real-time geological control, operators can drill in a variety of wellbore environments, including unconventional fields, deepwater fields, damaged and underbalanced formation, and brown fields. The system also allows operators to drill in high-pressure, high-temperature (HPHT) zones with temperatures exceeding 300°F (149°C), allowing operators to produce wells in the increasingly challenging environments with controlled drilling in long laterals, high-angle curves and parallel vertical sections in a single run.
“Revolution RSS allows single-run drilling of curve and lateral sections, as well as HPHT and high-dogleg applications,” said Etienne Roux, vice president of drilling services at Weatherford. “In the last year and a half, Revolution RSS has drilled 284 vertical-curve-lateral wells in a single run, totaling 2.4 million ft.”
The Revolution RSS has completed several successful drilling projects for major operators in the Eagle Ford Shale in Texas. Recently, in an onshore horizontal well, Revolution RSS was used to drill a well through dense limestone and sandstone formation to a total depth of 16,559ft (5014m) and high temperatures up to 328°F (164°C).
On a separate project with six wells in the Eagle Ford, Revolution RSS achieved an average of 180 ft/hr (55 m/hr) on all six wells and a record of 227 ft/hr (69 m/hr) on one well, reducing the drilling cycle by two weeks and saving the operator more than US$1 million in operational costs.
The Revolution RSS is compatible with the full Weatherford suite of logging-while-drilling formation evaluation services, including real-time feedback on tool settings and status.
Image: Revolution RSS/ Weatherford