DSP-06 Subsea Particle Monitor 

 

The ClampOn subsea sensors are designed to meet these requirements:

 

 

The ClampOn DSP-06 Subsea Particle Monitor is based on the ClampOn “Ultrasonic Intelligent Sensor” technology. The sensor is installed two pipe diameters after a bend, where the particles/solids impact the inside of the pipe wall, generating an ultrasonic pulse.

 

The ultrasonic signal is transmitted through the pipe wall and picked up by the acoustic subsea sensor. In the patented “Intelligent” ClampOn sensor the signal is processed internally by a DSP engine and filtered before being sent digitally and/or analogically to the topside computer or control system (no Calculating Interface Unit required). Here the user can monitor and evaluate the data in real time and make the required decisions for profitable production.

 

Sand production in oil and gas wells is a serious issue for oil and gas producers. The challenge is not merely to avoid sand production, but also to increase commercial well productivity, as even small quantities of particles in the well flow can cause significant damage. As an operator you are interested in maximum production and profit from your wells, no matter what technology you use. Operators all over the world have made ClampOn their preferred supplier of sand monitoring systems, due to the patented technology that turns their wells into profit generators.

The ClampOn DSP-06 model incorporates a new filtering technique that makes the particle monitor an extremely useful tool for analyzing the true nature of sand production, helping to control it and finally, increasing the profit from the well! This filtering technique is the result of integrating our experience of thousands of wells, analyzing data, and using the results to enhance the technology used in our DSP-06 model.

The enormous capacity of the DSP sensor (the only one on the market) makes it possible to scan through a frequency range of 1 MHz 128 times per second. This illustrates the capacity of our technology and of the filtering technique that is at the core of acquiring and processing sand data.

 

 

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:

 

 

 

Mains power supply	12 - 48 VDC or 100-240 VAC 50-60 Hz
Power consumption	Max 2,1 W per sensor + computer rack module Signal and power barriers and converters supplied for DIN-rail mounting, in portable enclosure or for 19” rack mounting.

	COMPACT MODEL	DEEPWATER MODEL
Water depth	3000m	4500m
Max. operating pressure barA	300 (4351psi)	450 (6526psi)
Max. test pressure barA	333 (4829psi)	675 (9790psi)
Housing material	Titanium	Titanium
Dimensions excl ROV handle	ø90 x 324mm (ø3.5” x 12.8”)	ø150 x 359mm (ø5.9” x 14.1”)
Dry weight, kg (lbs)	5.2 (11.5)	15.0 (33.1)
Hose/jumper interface	Bennex or ODI	Bennex or ODI
Independent redundant electronics/single electronics	Yes	Yes
Gasket/sealing	No	Yes
EB welding	Yes	Yes
Glass-metal penetrator	Yes	Yes
Atmosphere pressure/high pressure chamber	Yes	Yes
ROV installation/retrieval	Yes	Yes
Retrofit clamp/funnel	Yes	No
Power Supply	12-28VDC	12-28VDC
Current draw	Approx. 70mA @ 24VDC	Approx. 70mA @ 24VDC
Design Lifetime (MTBF)	220 000 hours (25 years)	220 000 hours (25 years)
Puls function/vibration/ temperature measurement	Optional	Optional

ClampOn has since the beginning in 1994 grown to be the largest supplier of passive ultrasonic systems for sand/particle monitoring to the international oil and gas sector.

 

All products supplied by ClampOn, particle monitor, PIG detector, corrosion-erosion monitor, vibration monitor and leak monitor are based on the same, well proven technology platform. Both the topside and the subsea instruments incorporate Digital Signal Processing (DSP), complete digitalization eliminating analogue filters, circuits and amplifiers.

The ClampOn Ultrasonic Intelligent Sensor processes all data in the sensor itself (patented principle), thus enabling the instrument to discriminate between sand-generated and flow-generated noise. This is of importance to the user since changes in flow rates and the gas/oil ratio will not affect the performance of the system.

A good signal to noise (s/n) ratio is vital for quality measurements of this sort, and ClampOn’s sensors are the very best in this respect. With the new version, the external noise has been completely eliminated.
The sensors has memory capacity for storing up to 60 days of data, and can even be reprogrammed between being a sand monitor, a PIG detector or a leak monitor.

 

ClampOn Ultrasonic Intelligent Sensor

• Non-invasive
• Digital Signal Processing (DSP)
• Complete digitalisation
• No analogue filters, circuits or amplifiers
• Two-way communication
• Real-time measurement
• Easy to relocate
• Contains no moving parts
• Can be mounted in hostile environments
• Incorporates sensitive, intelligent, intrinsically safe sensors
• Can be upgraded by software download
• Can store up to 60 days of  measurement data within the sensor itself
• Self-testing capabilities
• Built-in temperature sensor and  accelerometer (optional)
• User-friendly software for Windows™ XP/Vista/2000-2008
• Versatile - one and the same sensor can perform particle detection, PIG detection, spectrum analysis and more, all available in the software package of your choice.