Survey Electronics Assembly (SEA)
The SEA module is a Geolink compatible Directional and Control unit; consisting of the AOM-35A Analogue Orientation Module, and new generation SEA Electronics Assembly. In addition to fully computed Directional data, the module provides 2-axis shock/vibration detection, mud-pulse signal encoding, rotation detection and Gamma/Resistivity tool communications control for the Negative Pulse MWD System.
The modules expands the capability of the Negative Pulse System, to include high temperature wells (175Deg Operating option).
- High temperature qualified (175ºC Option)
- Proven/robust technology
- Low quiescent power consumption
- Geolink system compatible
- Up to 20Kpsi Pressure rating
- Support for fast data transmission
- Shock and Vibration in Real Time
- Precision Orientation Module
| Value | Units | Comments | |||
|---|---|---|---|---|---|
| Inclination Accuracy | +/-0.1 | Deg. | |||
| Inclination Repeatability | +/-0.05 | Deg. | |||
| TF/Rotation at >5º Inc - Accuracy | +/-0.5 | Deg. | |||
| TF/Rotation at >5º Inc - Repeatability | +/-0.05 | Deg. | |||
| Azimuth at >5º Inc - Accuracy | +/-1.0 | Deg. | |||
| Azimuth at >5º Inc - Repeatability | +/-0.5 | Deg. | |||
| Dynamic Magnetic TF | +/-5.0 | Deg. | |||
| Vibration Threshold | 25 | g | 2-Axis | ||
| Mode | Real Time Memory |
| Value | Units | Comments | |||
|---|---|---|---|---|---|
| Diameter (Housing) LP | 1.895 | inches | |||
| 48.13 | mm | ||||
| Diameter (Housing) HP | 2.000 | inches | |||
| 50.80 | mm | ||||
| Length | 48.05 | inches | Excluding coupler | ||
| 1220.5 | mm | ||||
| 52.15 | inches | Including coupler (make-up) | |||
| 1324.5 | mm |
| Value | Units | Comments | |||
|---|---|---|---|---|---|
| Operating Voltage | +/-17V | Volts | Nominal | ||
| Accelerometer Scale | 1.4 | V/g | Nominal | ||
| Magnetometer Scale | 5.0 | V/Gauss | Nominal | ||
| Equivalent ADC Resolution | 13 | Bit | |||
| Quiescent Current | <20 | mA | (+17V only) |
| Value | Units | Comments | |||
|---|---|---|---|---|---|
| Operating Temperature SEA-150 | -25 to 150 | °C | (see note 1) | ||
| -13 to 302 | °F | ||||
| Operating Temperature SEA-175 | -25 to 175 | °C | |||
| -13 to 347 | °F | ||||
| Survival Temperature SEA-150 | -40 to 165 | °C | |||
| -40 to 329 | °F | ||||
| Survival Temperature SEA-175 | -40 to 185 | °C | |||
| -40 to 365 | °F | ||||
| Hydrostatic Pressure Low Pressure | 15,000 | psi | Maximum (1.895” Hsg) | ||
| 103.4 | MPa | ||||
| Hydrostatic Pressure High Pressure | 20,000 | psi | Maximum (2.000” Hsg) | ||
| 137.9 | MPa | ||||
| Vibration | 30 | g pk | 50 – 1000Hz | ||
| 20 | g rms | 50 – 1000Hz | |||
| Shock | 1000 | g | 0.5mS Half Sine |
Notes
- 175ºC option available
We provide a responsive repair, calibration and product support service. Our highly experienced and knowledgeable personnel are available to troubleshoot or repair equipment, and provide general product technical assistance.
If you need effective sensor support for your business contact
support@azimuthmwd.com for more information.