- Products and Service
- Rotary Steering System
Rotary Steering System
BHA: MWD+LWD+Flex Joint+RSS Unit+Bit
Compatible with MWD, Azimuth gamma, Resistivty, PWD, S&V
TOOL SIZE | HT-4.75LWD&RSS | HT-6.75LWD&RSS | HT-9.5LWD&RSS |
OD | 4 3/4” | 6 3/4” | 9 1/2” |
ID | 2.845” | 2.845-3.25” | 3.25” |
BTM CONNECTION | 3-1/2”IF | 4-1/2”IF | 6-5/8”REG OR 7-5/8”REG |
FLOW RATE | 150-350GPM | 225-650GPM/td> | 225-1200GPM |
BR | 10°/30m | 8°/30m | 6.5°/30m |
PASSAGE/ROTATE | 14°/30m | 10°/30m | 6°/30m |
HOLE SIZE | 6”、6.5” | 8.5”、8.75”、9.5” | 12.25”、113-1/8”、17.5” |
MAX. SPP | 140Mpa(20000psi) | ||
MAX. TEMP | 150°C |
RSS Peculiarity
(1)BPA:Smart downlink while drilling
- Downlink by negative pulse, 10-15% mud flow is diverted from the bypass valve
- Downlink sending and confirm by computer
- More than 10,000 detailed downlink command, Inc increasement by 0.15deg
- Downlink wihile drilling in 3-5minutes, no need bit off bottom
- Reliable downlink, max to 8000m
(2)NO bit pressure drop issue
Compared with other RSS with same rig equipment, can increase 10-15% flow rate, to ensure well cleaning and reduce pipe stuck and well kick risks. Sterring without issue as:
- Flow rate change
- Mud properties change
- Bit noozle plug/lost
(3)Efficient push force control mode
- To ensure the well trajectory control and increase ROP, it will auto adjust each sterring rib push force and achieve even vector force.
- By downlink to on/off high efficiency control mode, up to 4 levels steering rib force can be reached in different formation.
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BHA: MWD/LWD+Mud Motor+RSS unit+Bit
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Features: Increase ROP for drilling optimization, less period to reduce drilling cost
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Date transmitting by electromagnetic wave
![](/static/en/images/rssImg/pic2.jpg)