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Q-Sep(TM) G
Downhole Oil/Water Gravity Separation System
A diagram of Q-Sep(TM) G
Quinn Rod Pump Downhole Oil/Water Gravity Separation System can
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A dual reciprocating rod pump system that allows
oil and water to separate due to gravity in the wellbore and then
pumps an oil rich stream to surface while disposing of the majority
of the produced water downhole.
Benefits
-significantly reduced water handling costs
-power savings & reduced green house gases
-incremental oil production with existing production equipment
-reduced surface facilities corrosion
Features
-high percentage of standard pump parts.
-patented and proven Positive Seal Ring Standing Valve (PSRSV)
for the top pump.
-all other valving is traditional sucker rod pump configuration.
-dispose of water on the upstroke eliminating the need for sinker
bars and the inherent limitations of a "pump down" configuration.
-downstroke "dead time" enhances wellbore gravity separation.
-top pump is insert (or TH) design that can be retrieved with
sucker rods.
-all rod seals are part of top pump and retrievable with rods.
-flexibility of pump sizing to maximize oil production and minimize
water production to surface.
-on/off tool "hanger" on bottom pump eliminates spacing
problems.
Q-Sep(TM) G
Downhole Oil/Water Gravity Separation System
Case Histories
Petro-Canada Bellshill Lk. Pilot Well
Before After
4.73 m3/d oil 6.11 m3/d oil
74.6 m3/d water 9.73 m3/d water to surface
Renaissance Provost
Before After
2.1 m3/d oil 2.9 m3/d oil
40.1 m3/d water 9.5 m3/d water to surface
Renaissance Webb
Before After
4 m3/d oil 5.8 m3/d oil
40 m3/d water 11.0 m3/d water to surface
Q-Sep(TM) G
Downhole Oil/Water Gravity Separation System
System for 5-1/2" casing w/ 2-7/8" tubing
· 3-1/4" pump on bottom w/ 2" pump on top
· 90 m3/d to surface + 300 m3/d disposal
· 390 m3/d total production
System for 7" Casing w/ 3-1/2" Tubing
· 3-3/4" pump on bottom w/ 2-1/2" pump on top
· 145 m3/d to surface + 400 m3/d disposal
· 545 m3/d total production
Based on 168" stroke at 9 strokes per minute.
Pump sizes are maximum possible.
Typical systems may have smaller pumps.
Enquiries:
Reg Prostebby, CET
Manager, Engineering
Ph. (403) 347-1128
Fax (403) 343-3210
e-mail: RProstebby@quinnpumps.com
Quinn's Oilfield Supply Ltd. 2001©
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