Subsea PIG Detector
Subsea PIG Detector
PIG detection made easy and reliable
The Non-intrusive ClampOn DSP PIG Detector detects and monitors when the PIG is passing the point of installation. Providing reliable information about the passage of the PIG increases pipeline integrity and produces cost savings.
How it works
The ClampOn subsea sensors are designed to meet these requirements:
- Designed for a service life of more than 25 years
- Independent redundant electronics
- Independent high and atmosphere pressure chambers
- Electron beam (EB) welding of the chamber against external pressure (no rubber or mechanical seals)
- Glass-metal penetrator as a barrier between high and atmosphere pressure chambers
- Outstanding sensitivity, repeatability, accuracy and signal/noise ratio thanks to Digital Signal Processing (DSP)
Advantages
The ClampOn DSP Pig Detector, available in topside and subsea versions, is a more compact and user-friendly unit than other instruments on the market. It is easier to install in the field and easier to move to other locations.
DSP involves complete digitalization of the system and the elimination of analogue filters. This technology is increasingly used in a wide range of “smart electronic devices” as it provides sufficient capacity to perform advanced signal-processing tasks in real time. Such devices include medical diagnostic instruments, radar and sonar systems and mobile phones. ClampOn is the only manufacturer of pig detection systems to use DSP, which enables the sensor to operate in several frequency ranges simultaneously, eliminating the danger of the detector being triggered by noise sources other than pigs.
Integration
All our instruments are equipped with both digital and analogue interface, and comply with all common protocols. Our instruments can easily be integrated into any existing or new control system. A computer with our software is often used in-between our instruments and the control system. The computer will be used for sand calculation by using the RAW data from our sand detectors and flow data from third party systems, then output calculated sand rate to the control system. All recorded data will also be stored for analyzing and calibration purposes. We always recommend using the digital interface due to following benefits:
- Two way communication enabling instrument software update and configuration
- Full signal range resolution
- All sensor data can be transmitted
- No signal loss
Specifications
Subsea PIG Detector
Principle of operation
Passive acoustics and/or magnetic gate
Type of Pig
All types
Minimum Pig Speed
0.3 meter per second
Method of installation
Clamped to pipe surface, non-intrusive
Sensor electronics
Intelligent DSP electronics with signal processing
Interface options
All sensors can be supplied with: Digital RS485 (ASCII, binary, ModBus RTU), Relay, reset
Options for subsea: CANBus
Other functions available: Vibration monitoring, sensor selftest
Two-way communication
Yes
Software upgrading
Yes
Operating Temperature
-40 °C to +150 °C (-40 °F to +302 °F)
High temperature fixture
500 °C (932 °F)
Flow regimes
Oil, gas, water, multiphase
Diagnostic features
Self test, vibration, 0.25Hz – 1000Hz ±5G
COMPUTER
Minimum hardware
Pentium III (or equivalent) with 512 MB RAM
Software requirements (for Clampon Software)
Windows 2000/2003/XP/Vista
Input
Serial, Modbus, ethernet, OPC
Signal output
Serial, Modbus, ethernet, Relay, Client Server
SAFE AREA EQUIPMENT
Power Input
12 VDC to 30 VDC
Power consumption
Typical 1.5 W @24 VDC
COMPACT MODEL
Water depth
3000m
Max. operating pressure barA
300 (4351psi)
Max. test pressure bar
345 bar (5000 psi)
Housing material
Titanium, grade 2/5
Dimensions excl. handle
ø84 mm x 321 mm (ø3.3 in x 12.6 in)
Dry weight, kg (lbs)
5.2 (11.5)
Hose/jumper interface
Siemens Anguila/Aquatron or ODI
Independent redundant electronics / single electronic
Yes
Gasket/sealing
No
EB welding
Yes
Glass-metal penetrator
Yes
Low pressure / high pressure chamber
Yes
ROV installation/retrieval
Yes
Retrofit clamp/funnel
Yes
Power Supply
12-30VDC
Current draw
Approx. 70mA @ 24VDC
MTBF Calculation
>30 years @+60 °C (+140 °F)
>80 years @+30 °C (+86 °F)
ClampOn DSP Subsea PIG Detector Data Sheet »