Global Patent Index - EP 1836272 A2

EP 1836272 A2 20070926 - EMULSIFIER-FREE WELLBORE FLUID

Title (en)

EMULSIFIER-FREE WELLBORE FLUID

Title (de)

EMULGATORFREIER BOHRSCHLAMM

Title (fr)

LIQUIDE DE PUITS DE FORAGE EXEMPT D'ÉMULSIFIANT

Publication

EP 1836272 A2 20070926 (EN)

Application

EP 05807816 A 20051123

Priority

  • GB 2005004504 W 20051123
  • GB 0425679 A 20041123

Abstract (en)

[origin: WO2006056774A2] A wellbore fluid is described having a continuous non-aqueous phase and inorganic particles wherein said particles are coated with essentially permanently adsorbed amphiphilic molecules causing a lipophilic behavior of said particles under operating conditions.

IPC 8 full level

C09K 8/36 (2006.01)

CPC (source: EP GB)

C09K 8/32 (2013.01 - GB); C09K 8/34 (2013.01 - GB); C09K 8/36 (2013.01 - EP); C09K 8/48 (2013.01 - GB); C09K 8/516 (2013.01 - GB); C09K 8/588 (2013.01 - GB); C09K 2208/18 (2013.01 - EP)

Citation (search report)

See references of WO 2006056774A2

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2006056774 A2 20060601; WO 2006056774 A3 20060810; CA 2588667 A1 20060601; EA 200701135 A1 20071228; EP 1836272 A2 20070926; GB 0425679 D0 20041222; GB 2421038 A 20060614; GB 2421038 B 20061101; MX 2007006193 A 20070803; NO 20072757 L 20070820

DOCDB simple family (application)

GB 2005004504 W 20051123; CA 2588667 A 20051123; EA 200701135 A 20051123; EP 05807816 A 20051123; GB 0425679 A 20041123; MX 2007006193 A 20051123; NO 20072757 A 20070530