David Alan Dillon

US Patent:

8171997, May 8, 2012

Filed:

Dec 5, 2008

Appl. No.:

12/328884

Inventors:

David L. Olson - Los Alamitos CA, US
Josh T. Prather - Acton CA, US
David B. Dillon - Parker CO, US
Ray A. Watson - Conroe TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 43/00

US Classification:

166369, 166 68, 166 541, 166105

Abstract:

A method of producing a well fluid includes securing a motor to a string of outer tubing and lowering the outer tubing and motor into the well. A rotary pump is secured to a string of inner tubing and lowered into the outer tubing. The pump stabs into cooperative engagement with the motor. Supplying power to the motor rotates the pump, causing well fluid to flow into the outer tubing to an intake of the pump, which pumps the well fluid through the inner tubing to an upper end of the well. Removing the well fluid allows gas to flow up an annulus surrounding the outer tubing to the upper end of the well.

US Patent:

52096513, May 11, 1993

Filed:

Sep 3, 1991

Appl. No.:

7/753852

Inventors:

John M. Kelleher - La Palma CA
David B. Dillon - Anchorage AK

Assignee:

Trico Industries, Inc. - Huntington Park CA

International Classification:

F04B 3502

US Classification:

417404

Abstract:

A deep well pump for positioning in a bottom hole assembly and having at least one fluid pump and at least two fluid powered motors with the pump and motor pistons carried in alignment on the piston rod. The pump includes passages for delivering a power fluid to one end of each of the motor cylinders and for receiving exhaust fluid from the other end of the motor cylinders, and a valve for reversing this operation. A first sleeve is positioned around the first motor cylinder defining a power fluid path from one end of the first cylinder to one end of the second cylinder, a second sleeve is positioned around the first sleeve defining an exhaust fluid path from the other end of the first motor cylinder, and a third sleeve is positioned around the second motor cylinder defining an exhaust fluid path from the other end of the second motor cylinder, with the first and second exhaust fluid paths interconnected. When the valve reverses the operation, the power fluid paths become exhaust fluid paths and the exhaust fluid paths become power fluid paths.

US Patent:

50643550, Nov 12, 1991

Filed:

Mar 29, 1990

Appl. No.:

7/501595

Inventors:

John M. Kelleher - La Palma CA
David B. Dillon - Anchorage AK

Assignee:

Trico Industries, Inc. - Huntington Park CA

International Classification:

F02B 3502

US Classification:

417404

Abstract:

A deep well pump for positioning in a bottom hole assembly and having at least one fluid pump and at least two fluid powered motors with the pump and motor pistons carried in alignment on the piston rod. The pump includes passages for delivering a power fluid to one end of each of the motor cylinders and for receiving exhaust fluid from the other end of the motor cylinders, and a valve for reversing this operation. A first sleeve is positioned around the first motor cylinder defining a power fluid path from one end of the first cylinder to one end of the second cylinder, a second sleeve is positioned around the first sleeve defining an exhaust fluid path from the other end of the first motor cylinder, and a third sleeve is positioned around the second motor cylinder defining an exhaust fluid path from the other end of the second motor cylinder, with the first and second exhaust fluid paths interconnected. When the valve reverses the operation, the power fluid paths become exhaust fluid paths and the exhaust fluid paths become power fluid paths.