John T Cleveland

US Patent:

40872076, May 2, 1978

Filed:

Mar 1, 1976

Appl. No.:

5/662503

Inventors:

Walter L. Chappell - Houston TX
John T. Cleveland - Houston TX
John D. Watts - Houston TX

International Classification:

F04F 120

US Classification:

417 54

Abstract:

A method of achieving gas induced production of liquid from wells wherein the wells have a production tubing string extending to a production formation wherein such wells may have insufficient gas production for achieving continuous production of liquids from such wells. The method includes establishing a liquid accumulation chamber being located downstream of a gas accumulation chamber and being in communication with the tubing string, while the gas accumulation chamber is in communication with the production formation. Liquid from the production formation is produced by maintaining a condition of predetermined low flow of gas and liquid produced from the production formation. The method includes accumulating a predetermined quantity of liquid within the liquid accumulation chamber during the predetermined low flow condition, while simultaneously accumulating a quantity of gas within the gas accumulation chamber. Upon accumulation of the predetermined volume of liquid within the liquid accumulation chamber, a quantity of gas from the gas accumulation chamber is suddenly released into the liquid accumulation chamber, transporting a portion of the accumulated liquid from the liquid accumulation chamber upwardly through the tubing string for production thereof. Suitable apparatus for achieving the method of the present invention may include a flow control mechanism connected to the tubing string and cooperating with the tubing string to define the liquid accumulation chamber and the gas accumulation chamber.

US Patent:

40476952, Sep 13, 1977

Filed:

Mar 28, 1975

Appl. No.:

5/563190

Inventors:

John T. Cleveland - Houston TX
Walter L. Chappell - Houston TX
John D. Watts - Houston TX

Assignee:

Chappell Industries, Inc. - Houston TX

International Classification:

F16K 4704

US Classification:

251122

Abstract:

A low pressure drop adjustable choke has a variably adjustable tapered annular port for metering flow of a fluid. The annular port is defined by a tapered plug extending through a mating, correspondingly tapered seat. The area of the port is selectively varied by axial movement of the plug relative to the seat. The device is mechanically adjustable to a selected flow rate, which may be indicated on a precision indicator.