EP 2906660 A4 20160601 - METHODS OF PREVENTING EMULSIFICATION OF CRUDE OIL IN WELL BORE TREATMENT FLUIDS
Title (en)
METHODS OF PREVENTING EMULSIFICATION OF CRUDE OIL IN WELL BORE TREATMENT FLUIDS
Title (de)
VERFAHREN ZUR PRÄVENTION DER EMULGIERUNG VON ROHÖL IN BOHRLOCHBEHANDLUNGSFLÜSSIGKEITEN
Title (fr)
PROCÉDÉS DE PRÉVENTION DE L'ÉMULSIFICATION DE PÉTROLE BRUT DANS DES FLUIDES DE TRAITEMENT DE PUITS DE FORAGE
Publication
Application
Priority
- US 201213649156 A 20121011
- US 2013064373 W 20131010
Abstract (en)
[origin: WO2014059167A1] Of the many compositions and methods provided herein, one method includes a method of preventing emulsification of crude oil into an aqueous-based treatment fluid, comprising: contacting crude oil in a well bore with the aqueous-based treatment fluid comprising a styrene-acrylate copolymer, wherein the crude oil has an API gravity of about 10 or greater; and allowing the styrene-acrylate copolymer to interact with the crude oil in the well bore.
IPC 8 full level
C09K 8/588 (2006.01); C09K 8/12 (2006.01); E21B 43/22 (2006.01)
CPC (source: EA EP)
C09K 8/035 (2013.01 - EA EP); C09K 8/588 (2013.01 - EA EP)
Citation (search report)
- [I] WO 2009050432 A1 20090423 - HALLIBURTON ENERGY SERV INC [US], et al
- [A] US 2004204324 A1 20041014 - BALTOIU LEN [CA], et al
- [A] WO 2004050790 A1 20040617 - MARQUIS FLUIDS INC [CA]
- [A] WO 2011006024 A2 20110113 - NALCO CO [US], et al
- [A] WO 2006070173 A1 20060706 - HALLIBURTON ENERGY SERV INC [US], et al
- See references of WO 2014059167A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2014059167 A1 20140417; AR 092926 A1 20150506; AU 2013329180 A1 20150416; AU 2013329180 B2 20160609; BR 112015007806 A2 20170704; CA 2886931 A1 20140417; EA 031903 B1 20190329; EA 201590499 A1 20150930; EP 2906660 A1 20150819; EP 2906660 A4 20160601; MX 2015004318 A 20151009; MX 369071 B 20191028
DOCDB simple family (application)
US 2013064373 W 20131010; AR P130103628 A 20131007; AU 2013329180 A 20131010; BR 112015007806 A 20131010; CA 2886931 A 20131010; EA 201590499 A 20131010; EP 13844827 A 20131010; MX 2015004318 A 20131010