Method of lifting oil from a well
OwnerJohn Splawn Page, Jr.inventor
Life of this patent
Estimating the term…
Abstract
In a well, the method of lifting oil to the surface that utilizes the hydrostatic pressure, the stored energy in a column of fluid in a tubing string to power a down hole pump that is controlled by a directional switching control valve that selectively directs said hydrostatic pressure to said pump resulting in a flow of production fluid into another string of tubing that conducts that fluid up to the surface.
Claims11
In a well, the method of lifting oil to the surface that utilizes the hydrostatic pressure, the stored energy in a column of fluid in one tubing string to power and operate a down hole pump that discharges its output into another string of tubing that conducts its output up to the surface.
In a well, in combination a device for lifting oil to the surface that includes a plurality of tubing strings installed into a well, one of the tubing strings is a conductor for oil to flow upwardly to the surface from a down hole pump carried by a supporting structure that is connected to one or more of the tubing strings, one of the tubing strings is a conductor for water to flow downwardly from the surface to a pump, water is poured into this tubing string to cause a hydrostatic fluid pressure to build up in its interior and that fluid pressure is conducted into said pump to cause it to operate and suck in oil from the well and discharge it up through the production tubing string to the surface.
In a well in combination a down hole reciprocating pump connected to a four-way valve with lever handle connected to a rod projecting out from the pump, a tension spring connected to the lever of the four-way valve and also connected to the rod projecting out from the pump, whereby movement of the rod back-and-forth over a predetermined distance pulls on the spring to change the position of the lever on the four-way valve resulting in a snap action of the four-way valve thereby directing fluid pressure alternately to the appropriate chambers of the pump.
Dependencies are inferred from the claim text.