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A versatile Steerable solution for maximum build rate
Rotary Steerable System for Directional Drilling
The SureSteer™-RSS™475 rotary steerable tool was created to complement APS’s field-proven Rotary Steerable Motor (RSM®). Whereas the RSM incorporates an integrated power section designed to maximize horsepower at the bit, the RSS either runs below a drilling motor or is driven directly from the top drive to maximize build rate capability and drillstring speed.
The APS RSS is a modular design and is currently offered in two configurations; A 4.75” directional gamma RSS system utilizing a single collar assembly or a 2 part configuration for RSS with WPR, or higher LWD capability
Features & Benefits
- Can be programmed to use a closed-loop feedback system for vertical or tangent angle control, or to operate with surface-supplied instructions to efficiently drill any directional well plan.
- Easily programmable downhole and straightforward to use. A series of timed pump speed changes allow for switching between modes or turning the tool off for events such as wiper trips, drilling out or back-reaming.
- Desired tool face on the initial unit is set by surface orientation (similar to a steerable motor), minimizing time required for downlinking.
- Desired build rate is communicated with timed pump speed changes.
- Can be directly linked to an APS MWD or LWD system for higher-level, comprehensive trajectory control, depending on the deployment method.
Design
- Available tool sizes: 4.75 in. (121 mm) OD for 6.0 in. (152.4 mm) and 6.75 in. (171 mm) boreholes sizes.
- The steering head houses the steering pads; directional measurement and control electronics; and the electrical and hydraulic power systems, which are driven by an integrated turbine and alternator system.
- The control electronics provide timing signals to a hydraulic manifold to control the steering direction and force to achieve the desired directional objective.
Applications
- Maximize build rate and drillstring speed during directional drilling
Tool Specifications
SureSteer-RSS Technical Data Sheet
General Specifications
| Dimensions | |||
| DIM | Description | Dimensions | |
| Nominal Hole Size | 6.0 in. (152.4 mm) | 6.75 in. (171 mm) | |
| A | Bit Box to Center of Steering Pad | 1.4 ft (0.4 m) | |
| B | Bit Box to Center of Sleeve Stabilizer | 9.3 ft (2.8 m) | |
| C | Overall Length including Pulser | 32.4 ft (9.9 m) | |
| Steering Pad Dia. – Retracted | 5.9 in. (149.9 mm) | ||
| Steering Pad Dia. – Extended | 6.6 in. (167.4 mm) | 7.0 in. (177.8 mm) | |
| D | Steering Pad Upset Dia. | 5.75 in. (146 mm) | |
| E | Sleeve Stabilizer Dia. | 5.9375 in. (150.8 mm) | 6.6875 in. (169.9 mm) |
| Bottom Connection | 3-1/2 in. API REG box | ||
| Top Connection – Standard, Housing | 3-1/2 in. IF box | ||
| Operational | |||
| Flow Rate | 150 to 350 gpm (9.5 to 22 l/sec) | ||
| Maximum Drill String Rotation Speed | 200 RPM | ||
| Maximum Operating Torque | 9,700 ft-lbs (13,150 N-m) | ||
| Pressure Drop | 200 psi @ 350 gpm (1.4 MPa @ 22 l/sec) | ||
| Build Rate Capability | To 12˚/100 ft (30 m) | ||
| Environmental | |||
| Maximum Temperature | 302˚F (150˚C) | ||
| Maximum Pressure | 20,000 psi (137.9 MPa) | ||
| Maximum Bend Radius – Rotating | 15˚/100 ft | ||
| Maximum Bend Radius – Sliding | 21˚/100 ft | ||
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