EP 4157962 A1 20230405 - METHOD FOR PRODUCING A VISCOSIFIED WATER FOR INJECTING IN A WELL, RELATED PROCESS AND EQUIPMENT
Title (en)
METHOD FOR PRODUCING A VISCOSIFIED WATER FOR INJECTING IN A WELL, RELATED PROCESS AND EQUIPMENT
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES VISKOSIFIZIERTEN WASSERS ZUR INJEKTION IN EIN BOHRLOCH, ZUGEHÖRIGES VERFAHREN UND VORRICHTUNG
Title (fr)
PROCÉDÉ DE PRODUCTION D'EAU VISCOSIFIÉE POUR INJECTION DANS UN PUITS, PROCÉDÉ ET ÉQUIPEMENT ASSOCIÉS
Publication
Application
Priority
IB 2020000533 W 20200527
Abstract (en)
[origin: WO2021240198A1] The method comprises: - feeding solid polymer particles and water to a dynamic mixer (56) having a rotor; - wetting and at least partially dissolving the solid polymer particles in water in the dynamic mixer (56) to produce a mother solution; - agitating the mother solution in at least two successive tanks (80, 84, 86) to obtain a matured mother solution; - diluting the matured mother solution with water to obtain the viscosified water; Water fed to the dynamic mixer (56) is a low salinity water having a salinity smaller than 3 g/l, the mother solution produced in the dynamic mixer having a temperature greater than 40°C, and a polymer concentration greater than 15 g/L, in particular greater than 19 g/L.
IPC 8 full level
C08J 3/05 (2006.01); C09K 8/588 (2006.01); E21B 43/16 (2006.01)
CPC (source: EP)
B01F 23/451 (2022.01); B01F 23/53 (2022.01); B01F 23/59 (2022.01); B01F 25/31331 (2022.01); B01F 27/1145 (2022.01); B01F 27/9214 (2022.01); B01F 33/811 (2022.01); B01F 33/821 (2022.01); C08J 3/05 (2013.01); C09K 8/588 (2013.01); E21B 21/062 (2013.01)
Citation (search report)
See references of WO 2021240198A1
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
IB 2020000533 W 20200527; EP 20743229 A 20200527