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Patent Searching and Data


Title:
ADAPTIVE PUMP CONTROL FOR POSITIVE DISPLACEMENT PUMP FAILURE MODES
Document Type and Number:
WIPO Patent Application WO/2013/012832
Kind Code:
A3
Abstract:
Detecting a failure mode of a fluid flow controller configured to control fluid flow between first and second chambers of a downhole positive displacement pump and a flow line, wherein the positive displacement pump comprises a piston moving in an axial reciprocating motion, and subsequently adjusting operation of the downhole positive displacement pump based on the detected failure mode such that the downhole positive displacement pump piston operates differently in different axial directions.

Inventors:
VILLAREAL STEVEN (US)
POP JULIAN (US)
HOEFEL ALBERT (US)
HARMS KENT D (US)
Application Number:
US2012/046997
Publication Date:
April 25, 2013
Filing Date:
July 17, 2012
Export Citation:
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Assignee:
SCHLUMBERGER CA LTD (CA)
SCHLUMBERGER SERVICES PETROL (FR)
SCHLUMBERGER HOLDINGS (GB)
SCHLUMBERGER TECHNOLOGY BV (NL)
PRAD RES & DEV LTD (GB)
VILLAREAL STEVEN (US)
POP JULIAN (US)
HOEFEL ALBERT (US)
HARMS KENT D (US)
International Classes:
E21B47/008; F04B47/12; F04B49/22
Foreign References:
EA015138B12011-06-30
US20040117132A12004-06-17
US4705459A1987-11-10
US20050022589A12005-02-03
Other References:
See also references of EP 2723982A4
Attorney, Agent or Firm:
HEWITT, Cathy et al. (IP Administration Center of ExcellenceRoom 472, Houston TX, US)
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