E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/33
E21B 43/29 (2006.01)
Patent
CA 1277229
ABSTRACT GAS LIFT SYSTEM The method of the present invention relates to a gas lift operation wherein pressurized injection gas is mixed with pressurized injection liquid prior to introducing the pressurized mixture into a borehole. The pressurized injection gas and liquid mixture is introduced into one portion of the well bore to a point below an initial column of well fluid present in another portion of the well bore conduit. As the mixture of injection gas and liquid travels towards the bottom of the well bore the gas is compressed more and more by the height of the column of liquid thereabove and is subsequently passed to said another portion of the well bore where the gas rises and expands to lift the oil or other well fluid to the surface. As a result of the expanding rising gas in the production conduit and the lifting of the initial charge of well fluid in the production conduit, the pressure at the lower end of the production conduit adjacent the producing formation drops, thereby inducing additional well fluid to enter said another portion of the well bore from the formation. Further injection of pressurized injection gas and liquid lifts any additional oil or other well fluid emerging from the formation to the surface.
549903
Bobo Roy A.
Bobo Sarah S.
Riches Mckenzie & Herbert Llp
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