Rotary Steerable System (RSS) – TSRSS Series

Short Description:

The TSRSS (Rotary Steerable System) is a push-the-bit directional drilling tool developed by Aerospace Petroleum Technology Company. It is designed for high build-up rate drilling in unconventional oil and gas wells. The system integrates real-time near-bit geological measurement with closed-loop trajectory control to deliver precise well placement. TSRSS enables one-trip drilling of build-up and horizontal sections, reducing drilling cycles and improving reservoir encounter rates. It is available in 675 standard, 675 high-temperature, 475 compact, and 950 rotary/vertical integrated configurations.

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Product Detail

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Key Technology

High Build-up Rate: Maximum build-up rate up to 15.3°/30m, providing stable performance for unconventional oil and gas exploration and development.

Multi-Geological Parameter Measurement: Electromagnetic wave resistivity, near-bit natural gamma, and near-bit azimuth gamma with real-time formation feedback.

Zero-Degree Build Up: High-precision near-bit azimuth measurement with zero-degree build-up function. Control accuracy of the slight deviation section is better than ±5°.

Trajectory Closed-Loop Control: 3D closed-loop control with ±0.2° accuracy.

Pressure Closed-Loop Steering: Hydraulic thrust monitored via pressure closed-loop for consistent and reliable steering force.

Product Series

Model	Hole Size	Max. Build-up Rate	Working Temp	Key Feature
TSRSS-01 (675 Basic)	8½"–9⅞"	15.3°/30m	150°C	Conventional system
TSRSS-01 (675 HT)	8½"–9⅞"	15.3°/30m	175°C	High-temperature system
TSRSS-10 (475)	6"–6½"	12°/30m	175°C	Miniaturized, compact design
TSRSS-950	—	—	175°C	Rotary/vertical steer integrated