Title:
NOVEL COPOLYMERS FOR USE AS OILFIELD DEMULSIFIERS
Document Type and Number:
WIPO Patent Application WO/2012/030600
Kind Code:
A3
Abstract:
Lactone/alkylene oxide polymers are useful as demulsifiers to break emulsions, e.g. water-in-oil and oil-in-water emulsions, particularly oilfield emulsions. These polymers are random or block polymer made from addition reactions of a hydroxyl- and/or amine-containing base compound with at least one lactone monomer and at least one alkylene oxide monomer.
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Inventors:
HILFIGER MATTHEW (US)
SQUICCIARINI MICHAEL P (US)
BLUNDELL CHRISTINE ANN (GB)
STEPIEN DARRYL M (US)
BREEN PATRICK J (US)
SQUICCIARINI MICHAEL P (US)
BLUNDELL CHRISTINE ANN (GB)
STEPIEN DARRYL M (US)
BREEN PATRICK J (US)
Application Number:
PCT/US2011/049032
Publication Date:
May 10, 2012
Filing Date:
August 25, 2011
Export Citation:
Assignee:
BAKER HUGHES INC (US)
HILFIGER MATTHEW (US)
SQUICCIARINI MICHAEL P (US)
BLUNDELL CHRISTINE ANN (GB)
STEPIEN DARRYL M (US)
BREEN PATRICK J (US)
HILFIGER MATTHEW (US)
SQUICCIARINI MICHAEL P (US)
BLUNDELL CHRISTINE ANN (GB)
STEPIEN DARRYL M (US)
BREEN PATRICK J (US)
International Classes:
C10G33/04; B01D17/04; C08G63/08; C08G63/664
Foreign References:
| US3689531A | 1972-09-05 | |||
| US4291155A | 1981-09-22 | |||
| JPH07310077A | 1995-11-28 | |||
| JPS59123503A | 1984-07-17 |
Other References:
See also references of EP 2611885A4
Attorney, Agent or Firm:
LITTLEFIELD, Stephen, A. (P.O. Box 4740Houston, TX, US)
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