Title:
GAS OPERATED AUTOMATIC, LIQUID PUMPING SYSTEM FOR WELLS
Document Type and Number:
WIPO Patent Application WO2003087521
Kind Code:
A3
Abstract:
An improved, unattended, liquid pumping device (10) for oil and gas wells featuring a bellows (35) controlled flow valve (20) that opens and closes at preset pressures. Additionally a well head receiver (60) design that releases shut in production gas below the pumping device (10) and provides a positive pressure differential across the pumping device (10) prior to valve (20) opening.
Inventors:
SWOYER GERALD L (US)
HUNT CHARLES H (US)
YANIGA PAUL M (US)
BORDOGNA RICHARD J (US)
HUNT CHARLES H (US)
YANIGA PAUL M (US)
BORDOGNA RICHARD J (US)
Application Number:
PCT/US2003/010593
Publication Date:
July 08, 2004
Filing Date:
April 07, 2003
Export Citation:
Assignee:
BRANDYWINE ENERGY AND DEVELPOM (US)
SWOYER GERALD L (US)
HUNT CHARLES H (US)
YANIGA PAUL M (US)
BORDOGNA RICHARD J (US)
SWOYER GERALD L (US)
HUNT CHARLES H (US)
YANIGA PAUL M (US)
BORDOGNA RICHARD J (US)
International Classes:
E21B43/12; (IPC1-7): E21B43/00; F04B47/12
Foreign References:
| US4889473A | 1989-12-26 | |||
| US4923372A | 1990-05-08 | |||
| US5462115A | 1995-10-31 | |||
| US3095819A | 1963-07-02 | |||
| US5253713A | 1993-10-19 | |||
| US6554580B1 | 2003-04-29 |
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