CLSR
What is the CLSR Coalescing Pump?
The CLSR is a device to coalesce small oil droplets to large oil droplets for easier separation. The CLSR only changes the droplets size distribution; the change in concentration (separation) is done downstream in another device. More info about the models is found here.
How does it work?
Placed just upstream of a separator, the CLSR centrifuges the produced water to coalesce micron-sized oil droplets to over 30 times their original size. Oil droplets are forced inward to a (channel) wall, where the droplets coalesce into an oil film. At the end of the channel wall, the oil film breaks up into droplets again, but these droplets are much larger than at the inlet. Together with the water, the large droplets leave the CLSR to be separated in the downstream separator.
The heart of the patented CLSR is a rotating element, consisting of ten thousands of small channels, typically 1,5 mm in diameter, rotating at around 1000 rpm.
The core is intergrated in the housing of a horizontal multistage pump The core replaces the internal stages of the pump, while the in- and outlet, shaft, seals and motor are original. More information about the working principle and the advantages is found here.
Models
Integrated in the design of a multistage centrifugal pump, the CLSR technology is now available with the CLSR-series Coalescing Pump. The CLSR Coalescing Pump combines the innovative and new technology of the CLSR with the proven technology of a high-pressure multistage pump.
The CLSR Coalescing Pump is available in three models, covering any flowrate up to 12,000 barrels water per day (or 80 m3/hr / 350 gpm). A fourth model, handling up to some 25,000 bpd is currently in development.
Housing CLSR
Since CoalesSense is using standard industry accepted multistage centrifugal pumps to house the CLSR technology, we can offer a wide range of pumping configurations. Depending on our customers requirements, we are able the adjust the configuration of the pump without the need to redesign or reinvent the complete machine.
Standard, we offer a vertical configuration for our CLSR-15, and a horizontal configuration for the CLSR-30 and CLSR-45. The housings a rated up to 15, 30 and 36 bar respectively (220, 435 and 520 psi) while higher ratings are available.
For the CLSR-15, the standard housing is AISI 304, while the CLSR-30 and CLSR-45 have a cast iron housing. For these models, other materials such as AISI 316 or (super) duplex are available. The standard base frame is fabricated steel.
Internals CLSR
The standard internals of the our Coalescing Pump are made of stainless AISI 316. Optional, the channels in the core can ben made of PTFE, drastically lowering adhesive forces and therefore minimalizing fouling of the channels. For less critical applications and in our test units, we offer a core made of AISI 304.
The internal diameter of the channels is a major parameter afflecting the size of the collected droplets. Reducing the size leads to a smaller collected droplet, ans therefore a better performance in the most critical droplet size range.
Standard, CoalesSense offers channels with an internal diameter of around 1.5 mm (0,06 inch) for all materials. Optional, we provide channels with an ID of around 0.75 mm (0,03 inch) in all materials. For special applications, we also offer a PTFE core with an channel ID of around 0.4 mm (0.016 inch).
Further, all internal parts such as the inlet and outlet configuration are standard made from AISI 316. These parts can be provided in (super) duplex or other stainless on request.
