Title:
PROCESS FOR OIL RECOVERY
Document Type and Number:
WIPO Patent Application WO/2017/161556
Kind Code:
A1
Abstract:
A process for recovering oil by injecting an enhanced oil recovery formulation comprising of from 80 to 95% by weight of carbon dioxide and of from 5 to 20% by weight of dimethyl sulfide comprising (i) reacting carbon with oxygen in the presence of steam to obtain a reaction product containing hydrogen, carbon monoxide, carbon dioxide and steam, (ii) optionally combining carbon monoxide obtained in step (i) with further steam to obtain a reaction product containing carbon dioxide and hydrogen, (iii) separating carbon monoxide and hydrogen from the product of step (i) and optionally hydrogen from the product of step (ii) and converting hydrogen and carbon monoxide to methanol, (iv) reacting at least part of the methanol with hydrogen sulfide to obtain dimethyl sulfide, and (iv) injecting enhanced oil recovery formulation comprising dimethyl sulfide obtained in step (iv) and carbon dioxide obtained in step (i) and optionally step (ii).
Inventors:
WEI LINGLI (CN)
BOERSMA DIEDERIK MICHIEL (NL)
BOERSMA DIEDERIK MICHIEL (NL)
Application Number:
PCT/CN2016/077328
Publication Date:
September 28, 2017
Filing Date:
March 25, 2016
Export Citation:
Assignee:
SHELL INT RESEARCH (NL)
WEI LINGLI (CN)
WEI LINGLI (CN)
International Classes:
E21B43/16; C07C319/30
Domestic Patent References:
WO2014210115A1 | 2014-12-31 |
Foreign References:
US20140000884A1 | 2014-01-02 | |||
US20140000879A1 | 2014-01-02 | |||
CN104471187A | 2015-03-25 | |||
CN105408308A | 2016-03-16 | |||
US7918906B2 | 2011-04-05 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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