| Customization: | Available |
|---|---|
| After-sales Service: | Provided |
| Warranty: | 1 Year or 2000hours |
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Introduction
The North Seeking Fiber Optics Gyro While Drilling "Roar" system was designed based on the LIUHE NS-FOG. The Roar tool is designed and built to withstand harsh drilling conditions and is operated in a similar manner as a conventional MWD system.
When the pumps are turned off, the tool will seek North and take a survey and store it in its memory. After the shot is taken and the pumps are turned back on, the tool will transmit via mud pulse telemetry; the stored survey data as well as all quality control flags to verify the quality of the shot.
After the survey is transmitted, the tool will continue sending information like INC, GTF, ERH. The tool stores every shot it takes, while download, for use later when retrieved at surface
Specification
| OD | Φ48mm / 1.89" |
| Probe Length | 5.71m / 18.7ft |
| OD of Drilling Tool | 120 to 203mm / 4.75" to 8" |
| Maximum Pressure | 140MPa / 20,300psi |
| Power Consumption | Working: 140mA@21V |
| Standby | 35mA @ 21V |
| Storage Capacity | 64Mbit |
| Comm. Interface | 85 / Magnetic coupling |
| Regular Mud Drilling | Oil base and Water base mud |
| Max. Temperature | 70°C / 158°F (Without Heatshield) |
| Shock and Vibration resistance | 10G rms (30G peak, peak time 3%) |
| Impact | 1000G 0.5ms |
| Flow Rate | 10 to 55L/s / 158 to 871gpm |
| Pulse Signal | 0.5 to 2MPa / 73 to 290psi |
| Downhole Working Hours | 200hrs in Phase 1 Mode 180hrs in Phase 2 Mode |
| Operating Mode | Pump Survey Mode / GMWD Mode / Memory Mode |
| Inclination | 0 to 90° ±0.2° |
| Azimuth | 0 to 360° ±0.5° (10°≤ INC ≤70°) |
| Gravity High Side | 0 to 360° ±1° (10°≤ INC ≤90°) |
| Gyro North Toolface | 0 to 360° ±0.5° (0°≤ INC ≤70°) |
| Time for Survey | 45s ≤ SHOT ≤ 120s |
Features
Bottom-Mounted & Retrievable Positive Mud Pulse MWD
Wireless communication equipment, no need to lay out cablesModularized design, easy for update and maintenance
Adopt high-precision sensor component
Gamma and depth measuring system are option
Application
Oil & Gas drilling project
Coal mine construction
Tunnel and non-dig construction
Slim well orientation ! horizontal operation
Environmental Specification
Mud Viscosity ≤140s
Mud Density s2.5g/cm3
.Mud Sediment <1%
Mud Pulse Signal Strength 0.5MPa~2.0MPa
Mud Flow Rate 5-50L/s(LHE614501)
10-55L/S(LHE623501/LHE625601)
Specification
Inclination
0 to 180°+0.1°
Azimuth
0 to 360°±1.0°
High side tool face
0 to 360°+0.5°
Magnetic tool face
0 to 360°+0.5°
Data memory
300hrs @ 10s/record
Working time
180hrs (With Gamma) / 200hrs (Without Gamma)
Selective Parts
Depth system (Option)
Depth Range 0 to g999.99 m 1% (Single drill pipe)
Natural Gamma Module (Option)
API Range 0~500API+2%
2CPS/API(LHE623501/LHE625601)
1.5CPS/API(LHE614501)
172mm / 6.75"
300hrs @ 10s
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