PUMPS
ATEX Application for Water Re-injection
Cat Pumps ( U . K .) were contacted by an onshore wellsite based in the South of England , looking for a complete pump and motor unit that was able to deliver the pressure and flowrate required for their water injection “ downhole re-injection ” system . Following an online search , they discovered via the Cat Pumps ( U . K .) website that Cat Pumps offer ATEX Pumps and Pump Motor Units that were a suitable solution for their application .
Our customer drills , appraises and develops any hydrocarbons found at an onshore wellsite in the Weald Basin in the South of England . During this process our customer wanted produced water from oil and gas fields to be reinjected into the formation to stimulate hydrocarbon production in aging wells . This is known as water injection or water flooding . Produced water is very expensive to dispose of , so it is cost effective to re-inject into designated wells , back into compatible ground formations . Water injection into oil wells involves the following steps :
• Injection wells are first drilled close to the producing well . An injection well is a well that is designed to channel water into the surrounding formation in proximity of a producing well to stimulate hydrocarbon production or for fluid disposal purposes .
• Produced water or treated water is pumped into the formation under high pressure . Tests may be carried out to ensure that the produced water to be injected is compatible with the formation , therefore the water may be treated to remove fine particles that might clog the well and oxygen that encourages the growth of bacteria .
• The pressurised fluid exerts a sweeping force that collects existing hydrocarbon from hard-to-reach areas in the formation , driving the products toward a nearby producing well for collection .
Cat Pumps has provided high-pressure pumps , pump systems and components to the well drilling industry for over 30 years . Due to the field-proven dependability and superior suction capabilities , our pumps have become the industry standard for water injection applications worldwide .
With field-proven dependability in applications around the globe , Cat Pumps provides the best value for water injection systems .
Our customer advised : “ Cat Pumps had a very good understanding of our requirements . Their Technical support , after-purchase correspondence and ease of delivery to our location , made it a pleasure to do business . Any further requirements , we will contact Cat Pumps as our preferred supplier .”
P : + 44 ( 0 ) 1252 622031 • F : + 44 ( 0 ) 1252 626655 • sales @ catpumps . co . uk • www . catpumps . co . uk
Performance Under Pressure
The hostile environments and high technical demands of the Oil & Gas sector require quality , dependable high-pressure pumps . Cat Pumps positive-displacement pumps meet those harsh requirements , combining low life-cycle costs and high performance for :
• Reverse Osmosis Seawater Desalination
• Oil Well Stimulation
• Hose Pressure Testing
• Enhanced Gas & Oil Recovery
• Umbilical & Control Line Flushing
• Divers ’ Hot Water Suit Umbilical Feed
• Chemical Injection
• TEG Dehydration Pumping
• Deck Wash-Down & Marine Growth Removal
• HPUs For Water & Water-Glycol Hydraulics
• Accumulator Charging ; Blow-Out Preventers
• Equipment for Use In Explosive Atmospheres ( Zones 1 / 21 & 2 / 22 )
Cat Pumps — Taking On High-Pressure Offshore
UK : + 44 1252 622031 | sales @ catpumps . co . uk | www . catpumps . co . uk
© 2021 Cat Pumps ( U . K .) Ltd . All Rights Reserved . 21212 9 / 21
Issue 60 PECM 111