Title:
COMPACT CABLE SUSPENDED PUMPING SYSTEM FOR DEWATERING GAS WELLS
Document Type and Number:
WIPO Patent Application WO/2011/156157
Kind Code:
A3
Abstract:
A method of unloading liquid from a reservoir includes deploying a pumping system into a wellbore to a location proximate the reservoir using a cable. The pumping system includes a multi-section motor, an isolation device, and a pump. The method further includes supplying a power signal from the surface to the motor via the cable and sequentially operating each section of the motor to mimic a multi-phase motor, thereby driving the pump and lowering a liquid level in the tubular string to a level proximate the reservoir.
Inventors:
FIELDER LANCE I (US)
CARSTENSEN CHRISTIAN (DE)
DE DONCKER RIK (BE)
BRAUER HELGE (DE)
CARSTENSEN CHRISTIAN (DE)
DE DONCKER RIK (BE)
BRAUER HELGE (DE)
Application Number:
PCT/US2011/038417
Publication Date:
December 06, 2012
Filing Date:
May 27, 2011
Export Citation:
Assignee:
ZEITECS B V INC (NL)
FIELDER LANCE I (US)
CARSTENSEN CHRISTIAN (DE)
DE DONCKER RIK (BE)
BRAUER HELGE (DE)
FIELDER LANCE I (US)
CARSTENSEN CHRISTIAN (DE)
DE DONCKER RIK (BE)
BRAUER HELGE (DE)
International Classes:
H02K5/132; E21B43/12; H02K5/22; H02K16/00
Domestic Patent References:
| WO2009077714A1 | 2009-06-25 |
Foreign References:
| US20040217665A1 | 2004-11-04 | |||
| CN201374627Y | 2009-12-30 | |||
| GB2358740A | 2001-08-01 |
Other References:
DATABASE WPI Week 199211, Derwent World Patents Index; AN 1992-087497, XP002685279
DATABASE WPI Week 201038, Derwent World Patents Index; AN 2010-G26535, XP002685280
DATABASE WPI Week 201038, Derwent World Patents Index; AN 2010-G26535, XP002685280
Attorney, Agent or Firm:
PATTERSON, William B. et al. (LLP3040 Post Oak Blvd., Suite 150, Houston Texas, US)
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