EP 2964719 A1 20160113 - METHOD OF DRILLING BOREHOLES WITH INVERT EMULSION DRILLING FLUIDS CHARACTERIZED BY FLAT RHEOLOGY
Title (en)
METHOD OF DRILLING BOREHOLES WITH INVERT EMULSION DRILLING FLUIDS CHARACTERIZED BY FLAT RHEOLOGY
Title (de)
VERFAHREN ZUR BOHRUNG VON BOHRLÖCHERN MIT DURCH EINE FLACHE RHEOLOGIE GEKENNZEICHNETEN INVERTEMULSIONS-BOHRFLÜSSIGKEITEN
Title (fr)
PROCÉDÉ POUR LE FORAGE DE TROUS DE FORAGE AVEC DES FLUIDES DE FORAGE À ÉMULSION INVERSE CARACTÉRISÉS PAR UNE RHÉOLOGIE PLATE
Publication
Application
Priority
- US 201313791958 A 20130309
- US 2014022214 W 20140309
Abstract (en)
[origin: WO2014164381A1] An invert emulsion drilling fluid, and a method of drilling with such fluid, having improved rheology effected with addition of a fatty dimer diamine additive in the presence of little or no lime. The drilling fluids of the present invention exhibit similar yield points and gel strengths at temperatures ranging from about 40°F to about 375 °F or higher and at pressures ranging from about 0 psi to about 13500 psi.
IPC 8 full level
C09K 8/36 (2006.01)
CPC (source: EP)
C09K 8/36 (2013.01)
Citation (search report)
See references of WO 2014164381A1
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 2014164381 A1 20141009; AU 2014249450 A1 20150716; AU 2014249450 B2 20160811; CA 2900563 A1 20141009; EP 2964719 A1 20160113
DOCDB simple family (application)
US 2014022214 W 20140309; AU 2014249450 A 20140309; CA 2900563 A 20140309; EP 14732654 A 20140309