EP 3052579 A1 20160810 - BLOCK POLYMERS FOR FLUID LOSS CONTROL
Title (en)
BLOCK POLYMERS FOR FLUID LOSS CONTROL
Title (de)
BLOCKPOLYMERE ZUR FLÜSSIGKEITSVERLUSTSTEUERUNG
Title (fr)
POLYMÈRES SÉQUENCÉS POUR LE CONTRÔLE DU FILTRAT
Publication
Application
Priority
- FR 1302315 A 20131004
- EP 2014071253 W 20141003
Abstract (en)
[origin: WO2015049378A1] The present invention relates to the use of a block polymer as fluid loss control agent in a fluid injected under pressure into an oil-bearing rock, where: the fluid comprises solid particles and/or is brought into contact with solid particles within the oil-bearing rock following the injection thereof, the polymer comprises: - a first block which is absorbed onto at least one portion of the particles; and - a second block, having a composition different from that of the first, and having a weight-average molecular mass of greater than 10 000 g/mol, for example greater than 100 000 g/mol, and that is soluble in the fluid.
IPC 8 full level
C09K 8/03 (2006.01); C04B 24/16 (2006.01); C04B 28/04 (2006.01); C08F 2/38 (2006.01); C08L 53/00 (2006.01); C09K 8/487 (2006.01); C09K 8/50 (2006.01); C09K 8/62 (2006.01); C09K 8/84 (2006.01); C09K 8/88 (2006.01)
CPC (source: EP US)
C04B 20/1033 (2013.01 - EP US); C04B 24/2688 (2013.01 - US); C04B 28/02 (2013.01 - EP US); C08F 293/005 (2013.01 - EP US); C08L 53/00 (2013.01 - EP US); C09K 8/035 (2013.01 - EP US); C09K 8/487 (2013.01 - EP US); C09K 8/50 (2013.01 - EP US); C09K 8/62 (2013.01 - EP US); C09K 8/845 (2013.01 - EP US); C09K 8/882 (2013.01 - EP US); E21B 33/14 (2013.01 - US); C04B 2103/46 (2013.01 - EP US); C08F 220/06 (2013.01 - EP US); C08F 2438/03 (2013.01 - EP US)
Citation (search report)
See references of WO 2015049378A1
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2015049378 A1 20150409; AU 2014331058 A1 20160407; AU 2014331058 B2 20180705; CA 2924260 A1 20150409; CA 2924260 C 20230321; CN 106414657 A 20170215; CN 116789917 A 20230922; EP 3052579 A1 20160810; EP 3770231 A1 20210127; FR 3011555 A1 20150410; US 11168026 B2 20211109; US 2016214896 A1 20160728
DOCDB simple family (application)
EP 2014071253 W 20141003; AU 2014331058 A 20141003; CA 2924260 A 20141003; CN 201480054646 A 20141003; CN 202310744364 A 20141003; EP 14780519 A 20141003; EP 20183217 A 20141003; FR 1302315 A 20131004; US 201415026780 A 20141003