Joseph S Newbrough

US Patent:

40836606, Apr 11, 1978

Filed:

Mar 30, 1977

Appl. No.:

5/782848

Inventors:

Joseph S. Newbrough - El Cajon CA

International Classification:

F04F 120
F04F 524

US Classification:

417108

Abstract:

The system incorporates conical screens spaced along the producing tubing as mixing means to reduce the separation of gas and oil and enhances the lifting power of the gas. Supplemental lift devices are provided for non-flowing wells. The lift devices incorporate check valves in conjunction with the mixing means to lift the oil in stages. Motive power is provided by one or more jet pumps positioned in the producing zone and at vertically spaced points along the producing tubing.

US Patent:

40252353, May 24, 1977

Filed:

Nov 19, 1975

Appl. No.:

5/633370

Inventors:

Joseph S. Newbrough - El Cajon CA

International Classification:

F04F 514

US Classification:

417 54

Abstract:

A system utilizing intermittent build-up and bleeding of gas pressure in the annulus between the casing and tubing in an oil well with an inert gas interface between the gas and the producing fluid. The well is equipped with a down hole packer, inlet aperture above the packer through the tubing, and check valves above and below the packer and aperture. The system is sequentially operated by successively injecting the gas into the annulus forcing oil fluids through the aperture and up the tubing, and then bleeding the gas pressure, allowing the fluid to pass back into the annulus to the extent of the bottom hole pressure, while maintaining the necessary pressure on the formation. The cross section of the tubing is substantially smaller than the cross section of the annulus volume, thus a multiplying occurs in lifting the fluid in the tubing.