Global Patent Index - EP 3775093 A1

EP 3775093 A1 20210217 - CRYSTALLIZATION SUPPRESSANT COMBINATIONS FOR HIGH DENSITY CLEAR BRINE FLUIDS

Title (en)

CRYSTALLIZATION SUPPRESSANT COMBINATIONS FOR HIGH DENSITY CLEAR BRINE FLUIDS

Title (de)

KRISTALLISATIONSUNTERDRÜCKUNGSKOMBINATIONEN FÜR HOCHDICHTE KLARE SOLE

Title (fr)

COMBINAISONS D'AGENTS DE SUPPRESSION DE LA CRISTALLISATION POUR DES FLUIDES DE SAUMURE TRANSPARENTE À HAUTE DENSITÉ

Publication

EP 3775093 A1 20210217 (EN)

Application

EP 19780945 A 20190402

Priority

  • US 201815944007 A 20180403
  • US 2019025347 W 20190402

Abstract (en)

[origin: WO2019195259A1] Compounds are identified that act as crystallization suppressants when added to clear brine fluids, significantly lowering the true crystallization temperatures of the brines, and allowing for higher salt content in clear brine fluids. The crystallization suppressants of the invention also allow for the preparation of higher density zinc free brines. Crystallization suppressant blends are also identified that allow for the preparation of high density clear brine fluids with lower viscosities.

IPC 8 full level

C09K 8/035 (2006.01); C09K 8/68 (2006.01); C09K 8/86 (2006.01); C09K 8/88 (2006.01)

CPC (source: EP IL)

C09K 8/03 (2013.01 - EP); C09K 8/035 (2013.01 - IL); C09K 8/52 (2013.01 - IL); C09K 8/665 (2013.01 - EP); C09K 8/68 (2013.01 - EP IL); C09K 8/845 (2013.01 - EP); C09K 8/86 (2013.01 - EP)

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 2019195259 A1 20191010; BR 112020019839 A2 20210105; CN 111971365 A 20201120; EP 3775093 A1 20210217; IL 277050 A 20201029; SG 11202008458U A 20201029

DOCDB simple family (application)

US 2019025347 W 20190402; BR 112020019839 A 20190402; CN 201980023582 A 20190402; EP 19780945 A 20190402; IL 27705020 A 20200831; SG 11202008458U A 20190402