Paul Vernon Oldershaw

US Patent:

20090263221, Oct 22, 2009

Filed:

Apr 16, 2009

Appl. No.:

12/425162

Inventors:

Paul Oldershaw - Houston TX, US

International Classification:

B60P 1/02
E21B 19/14

US Classification:

414495

Abstract:

A device for assisting in the loading and off-loading of oil well tubulars from a trailer comprising a frame, a bottom side and a top side defining a bed. The bed comprises a front and a back defining a longitudinal axis. A bin retaining the tubulars may be formed by upright members and attached to the frame. At least two horizontal pipe support members may be oriented transverse to the bed of the trailer and raising-lowering means may be provided for the horizontal pipe support members. The horizontal pipe support members may be raised in near simultaneous manner. The raising-lowering means may comprise a ram member comprising an extendable piston, wherein the piston extends and retracts in parallel alignment with the longitudinal axis of the trailer. The raising-lowering means may further comprise cable members attached at a first end to the piston, and attached at a second end to the horizontal pipe support members, and may comprise a plurality of pulleys.

US Patent:

45910065, May 27, 1986

Filed:

Sep 29, 1982

Appl. No.:

6/427096

Inventors:

Stanley O. Hutchison - Bakersfield CA
Paul V. Oldershaw - Bakersfield CA
James E. Hansen - Bakersfield CA

Assignee:

Chevron Research Company - San Francisco CA

International Classification:

E21B 1920

US Classification:

175 52

Abstract:

A fully mobil and totally contained well servicing and drilling rig is disclosed having equipment on the rig for automatically handling well elements (pipe, tubing and rods) going into and coming out of a well. The rig provides well element storage racks, cranes for moving well elements onto and off the tracks, transfer means for moving well elements from horizontal to vertical position, well element conveying means for moving elements to and from the transfer means, an automatic manipulator for moving elements into alignment with the well being serviced, automatic hoisting means, means for connecting and disconnecting elements from the element string within the well, driving means for all of the equipment, and control means for sequencing and operating all of the means so that the entire well servicing or drilling can be accomplished without human handling of well elements in the vicinity of the well head and rig.

US Patent:

43504787, Sep 21, 1982

Filed:

May 13, 1980

Appl. No.:

6/149331

Inventors:

Paul V. Oldershaw - Bakersfield CA
James E. Hansen - Bakersfield CA
Walter E. Hinds - Beverly Hills, CA

International Classification:

F04B 4706
F04B 2106
F04B 3910

US Classification:

417417

Abstract:

A bottom hole well pump comprising a pump housing supported by a control cable for raising and lowering the housing within tubing in a well, a linear motor within the housing causing reciprocation of a plunger extending into a pumping chamber formed by the housing with inlet and outlet check valves for controlling flow of oil or other liquid into the pumping chamber and from the pumping chamber into the tubing above the pump housing. In one embodiment, Belleville-type springs are employed for storing energy as the plunger approaches its opposite limits of travel in order to initiate movement of the plunger in the opposite direction. In this embodiment, a single pumping chamber is formed above the linear motor with a single-valve block arranged above the pumping chamber and including inlet check valve means for controlling liquid flow into the pumping chamber and outlet check valve means for controlling liquid flow from the pumping chamber into the tubing interior above the pump housing. In another embodiment, pumping chambers are formed above and below the linear motor with a tubular plunger extending into both pumping chambers, in order to achieve pumping during both directions of travel of the plunger.