Solution of Directional Drilling
RSS Drilling systems
RSS Drilling systems
Rotary steerable System ：
6¾ with resistivity-------150℃ 9°-12°/30m
6¾ without resistivity-------150℃ 15°/30m
RSS Drilling systems
RSS System Parameters
NO. | Technical indicators | With resistivity | Without resistivity | NO. | Technical indicators | With resistivity | Without resistivity |
1 | Borehole size(mm) | 215.9 | 215.9 | 9 | INCN Zero-Length(m) | 1.8 | 1.8 |
2 | OD(mm) | 192 | 192 | 10 | GAMMA Zero-Length(m) | 5.7 | 3.7 |
3 | ID(mm) | 40 | 40 | 11 | MWD Zero-Length(m) | 8.1 | 6.6 |
4 | Lenght(m) | 15 | 15 | 12 | Lateral Vibration(g) | 25 | 25 |
5 | Temperature（℃) | 150 | 150 | 13 | Build-up Rate(°/30m） | 9-12 | 15 |
6 | Pressure(MPa) | 140 | 140 | 14 | Flow Rate(L/S) | 19-47 | 19-47 |
7 | Rated Tensile Load(KN) | 2000 | 2000 | 15 | 0°Build-up Capability | YES | YES |
8 | Lateral Force(KN) | 25.4 | 25.4 | | | | |
RSS Drilling systems
Technical details：Surface System
The surface system includes detection sensors (transducer, depth decoder, hook load sensors)、tcs/bb box, saraII box, bypass, and system software.
RSS Drilling systems
Technical details：Power Supply And Communication Sub
The Power Supply And Communication Sub includes: pulser、the electronic module,the main body node and the generator.
NO. | Parameters | Norm | NOTE |
1 | Temperature | 150℃/175℃ | |
2 | Pressure | 140MPa | |
3 | Max OD | 178mm | |
4 | Length | 3880mm | |
5 | Data Rata | 1-3bps | |
6 | RPM range | 2100-6700 rpm | |
7 | Flow Rate | 19 L/S - 47 L/S | |
8 | Power | 300W | |
9 | AC-RMS | 39V - 130V | |
RSS Drilling systems
Technical details：Measurement with drilling sub
The measurement with drilling sub includes : direction module, spacer module, battery module, and gamma module.
NO. | Measurement indicators | Parameters | NOTE |
1 | Azimuth | ±0.3°（INC 90°） | |
±1°（INC 10°） | | ||
±2°（INC 5°） | | ||
4 | INC | ±0.1° | |
5 | Max Temperature | 150℃ | |
6 | Min Temperature | -40℃ | |
7 | Shock-induced vibration | 1000G | |
8 | Vibration | 20G | |
RSS Drilling systems
Technical details：Steer Unit
Steer Unit includes : Upper electronic module, Lower electronic module, HU, LDS, UDS.
Performance Parameters | Geometric parameter（mm） |
RSS Drilling systems
Photos of RSS
RSS with resistivity
RSS without
resistivity
150℃ Vibration and Rotary Inclination Test
HU Oil Charge and Pressure Parameters Calibration
RSS Drilling systems
Photos of RSS
Hydraulic bin fixed drill collar
Upper Electronic Compartment drill collar
Upper Spindle
Hydraulic bin
Bearing
Rotary Steering Unit circuits
RSS Drilling systems
Field Applications
Since 2022, the system was deployed in 52 wells, Some data are as follows：
JinQian 8XX-X-H1
Depth：2176m～4220m
Circulation time：258h
Footage：2044m
Toolstring：AziGamma
Single trip operation: 173 hours
Changning HXX-6
Depth：2408m～3221m
Circulation time：121h
Footage：813m
Toolstring：AziGamma
Max ROP: 27.3m/h
Max INC: 101.12°
Max Build-up: 10°/30m
Zhage 4X well
Depth：4229m～5495m
Circulation time：306h
Footage：1258m
Toolstring：AziGamma
Single trip operation:
290 h
Single trip drilling depth: 1232m
Deng 5X well
Depth：5469m～6449m
Circulation time：226h
Footage：978m
Toolstring：：AziGamma
Maximum well depth: 6449m(TVD: 6243m）
Maximum temperature: 143.88℃
Mao2XX- fuping1X
Depth：2121m～3575m Footage：1454m
Circulation time：209h Toolstring ：LWD
Mao2X4- fuping3X
Depth：2147m～3230m Footage：1083m
Circulation time：188h Toolstring ：LWD
Thank You