Rotary-Steerable Systems

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To get the most out of your assets, you need to get creative with well plans that employ vertical, curve, and lateral sections to maximize reservoir exposure. Because rig time is a huge factor in drilling economics, particularly in offshore and unconventional fields, you also need to execute these multifaceted wellbores efficiently and produce a well that is stable and ready to complete. Economically meeting today's drilling challenges requires reliable, versatile technology.

The Weatherford Revolution® rotary-steerable system (RSS) provides industry-leading capabilities for diverse directional drilling applications, including high-temperature/high-pressure (HTHP) and high-dogleg wells. Our point-the-bit technology delivers clean, accurately placed, and completion-ready wellbores. With an autopilot function that maintains your drilling parameters, plus the ability to make real-time adjustments, you can confidently steer from vertical to horizontal in a single run.


Rotary-Steerable Systems Tool in use

Reliably reach target depth with speed and control.

With a suite of technologies suited for different applications and hole sizes, the Revolution rotary-steerable system can enhance the efficiency of drilling operations in a variety of conditions. The precise point-the-bit design boosts rate of penetration (ROP) and creates a clean, in-gauge wellbore that is easy to complete.

The Revolution suite harnesses advanced technologies to improve performance in HTHP and high-dogleg applications.

The Revolution Heat features HTHP-optimized hydraulics for enhanced reliability in challenging fields, and the Revolution 16 can build curves at a rate of 16°/100 ft (30 m) to enable deeper kickoffs and greater reservoir exposure. For cost-sensitive operations, the Revolution SRT provides efficient directional drilling using an innovative technique to control bit speed through modulated mud flow.

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We developed the proprietary technologies integrated into the Revolution suite at our state-of-the-art facility in Tewkesbury, England.

The facility reproduces extreme environmental conditions including temperature, pressure, vibration, torque, and—uniquely—backward whirl. As a result of our research on backward whirl, the Revolution rotary-steerable system includes real-time whirl sensors. Other on-board technologies include the TVM™ 2+ sensor, featuring our award-winning angular-rate gyroscope, which measures high-speed downhole rotation and helps to determine the type and severity of torsional vibration phenomena.


Enhance efficiency, reliability, ROP, and hole quality with the Revolution suite of rotary-steerable drilling solutions.

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Available Rotary-Steerable Technologies

Revolution® Core

High-efficiency, point-the-bit drilling with LWD

The Weatherford Revolution Core rotary-steerable system (RSS) features point-the-bit drilling technology for improved borehole quality, rates of penetration, and bit life. The Revolution Core RSS has a short, compact design that reduces the complexity of rotary-steerable drilling technology while placing critical logging-while-drilling (LWD) measurements close to the bit. Point-the-bit technology uses a pivot stabilizer to orient the drillbit axis with the axis of the planned well path, which optimizes the directional-drilling process and maximizes drilling efficiency. Relative rotation between the center shaft carries torque to the bit and nonrotating outer housing drive. A hydraulic pump generates the motive force to deflect the drillstring as programmed in the well plan.

Applications

  • Extended-reach, underbalanced, and tangent drilling

  • Drilling from vertical and building to horizontal

  • Formations requiring reduced slide intervals

Revolution Heat

Precision, directional drilling with LWD in challenging wells

The Weatherford Revolution Heat RSS enables precision drilling in high-temperature, high-pressure (HTHP) wells. The tool improves hole quality, increases drilling rates, and provides better hole cleaning in extreme drilling environments. The Revolution Heat RSS has a short, compact design to reduce the complexity of rotary-steerable drilling technology, while placing critical LWD measurements close to the bit. The Revolution Heat RSS can be combined with a comprehensive range of advanced Weatherford HTHP LWD sensors to deliver a complete drilling-and-evaluation service in extreme well conditions.

Applications

  • HTHP RSS drilling projects

  • Extended-reach drilling in HTHP wells

  • Complete RSS and LWD evaluation in HTHP environments

  • Continuous real-time near-bit inclination and gamma ray

  • Formations requiring reduced slide intervals

Revolution SRT

Cost-effective, directional drilling

The Weatherford Revolution SRT (slide-reduction tool), with targeted bit-speed technology, offers an economic alternative to RSS. This system provides rotary well-trajectory control for a variety of different drilling conditions and full 3D directional control while maintaining drillstring rotation to effectively reduce drilling time and to mitigate lost-in-hole risk in problematic drilling environments. The Revolution SRT uses a positive-displacement mud motor in conjunction with a proprietary synchronized-motor rpm controller and directional guidance system. The system uses the Weatherford HEL (hostile-environment-logging)-MWD technology and the real-time, high-temperature azimuthal gamma ray (HAGR) sensor.

Applications

  • Simple 3D well-design applications, including vertical control, build/hold/drop, tangent, S-type, extended-reach drilling, and horizontal wells

  • Unconventional wells that require slide elimination in long tangent sections

  • Reduction of slide/correction intervals in horizontal sections

Revolution V

Affordable, automated vertical drilling with LWD

The Weatherford Revolution V RSS enables cost-effective vertical rotary drilling that continuously and automatically maintains a vertical wellbore. The Revolution V RSS has a short, compact design that reduces the complexity of rotary-steerable drilling technology while placing critical LWD measurements close to the bit. Available on nearly any rotary rig, the Revolution V RSS actively measures and corrects any deviation to maintain a vertical wellbore through the entire well profile. The wellbore survey information is monitored by Weatherford wellsite directional drillers but does not require direct input for automatic corrections.

Applications

  • Automatically maintains a vertical wellbore

  • Eliminates motor correction runs

  • Continuously monitors real-time, near-bit inclination

  • Combinable with Weatherford LWD sensors

  • Can be run in standalone mode, preconfigured at the surface

Revolution 16

Enhanced drilling reach, control, and speed

The Weatherford Revolution 16 RSS allows deeper kick-offs and the drilling of complex build sections that result in more reservoir exposure and faster drilling times. The Revolution 16 RSS has a short, compact design that reduces the complexity of rotary-steerable drilling technology and improves trajectory control and wellbore placement. The Revolution 16 RSS can drill complex 3D wellbores with full bottomhole-assembly (BHA) rotation while approaching 16°/100 ft (/30 m). Complete shoe-to-shoe drilling in a single run reduces overall drilling time while drilling well trajectories that were previously unattainable. Continuous string rotation with the Revolution 16 RSS reduces drilling torque-and-drag, while providing better hole cleaning and improved borehole quality.

Applications

  • Deeper kick-offs

  • Increased reservoir exposure

  • Drilling from vertical building to horizontal in a single run

  • Near-bit inclination and gamma ray measurements for geological control

  • Motorized option available