Global Patent Index - EP 2859060 A4

EP 2859060 A4 20151230 - FLUIDS FOR USE WITH HIGH-FREQUENCY DOWNHOLE TOOLS

Title (en)

FLUIDS FOR USE WITH HIGH-FREQUENCY DOWNHOLE TOOLS

Title (de)

FLÜSSIGKEITEN ZUR VERWENDUNG MIT HOCHFREQUENTEN BOHRLOCHWERKZEUGEN

Title (fr)

FLUIDES DESTINÉS À ÊTRE UTILISÉS AVEC DES OUTILS DE FOND DE PUITS À FRÉQUENCE ÉLEVÉE

Publication

EP 2859060 A4 20151230 (EN)

Application

EP 13800948 A 20130529

Priority

  • US 201261656733 P 20120607
  • US 201213545706 A 20120710
  • US 201313903692 A 20130528
  • US 2013043004 W 20130529

Abstract (en)

[origin: WO2013184457A1] A fluid may contain nanoparticles and a base fluid where the base fluid may be a non-aqueous fluid. The base fluid may be, but is not limited to a drilling fluid, a completion fluid, a production fluid, and/or a stimulation fluid. The fluid may have at least one property, such as but not limited to a relative dielectric constant ranging from about 5 to about 10,000, an electrical conductivity ranging from about 1x10-6 S/m to about 1 S/m, and combinations thereof. The non aqueous fluid may be a brine-in-oil emulsion, or a water-in-oil emulsion, and combinations thereof. The addition of nanoparticles to the base fluid may modify the electrical properties of the fluid.

IPC 8 full level

C09K 8/32 (2006.01); E21B 43/22 (2006.01)

CPC (source: EP)

C09K 8/32 (2013.01); C09K 2208/10 (2013.01)

Citation (search report)

  • [XI] US 2011111988 A1 20110512 - IONESCU VASII LUMINITA LILIANA [CA], et al
  • [X] US 2011254553 A1 20111020 - VAN ZANTEN RYAN [US]
  • [A] US 6770603 B1 20040803 - SAWDON CHRISTOPHER [GB], et al
  • [A] WO 2009158117 A2 20091230 - UNIV CALIFORNIA [US], et al
  • [X] YU-ZHEN LV ET AL: "Experimental investigation of breakdown strength of mineral oil-based nanofluids", DIELECTRIC LIQUIDS (ICDL), 2011 IEEE INTERNATIONAL CONFERENCE ON, IEEE, 26 June 2011 (2011-06-26), pages 1 - 3, XP032051482, ISBN: 978-1-4244-7352-6, DOI: 10.1109/ICDL.2011.6015446
  • [X] SARTORATTO P ET AL: "Preparation and electrical properties of oil-based magnetic fluids", JOURNAL OF APPLIED PHYSICS, AMERICAN INSTITUTE OF PHYSICS, US, vol. 97, no. 10, 17 May 2005 (2005-05-17), pages 10Q917 - 10Q917, XP012070140, ISSN: 0021-8979
  • [A] DMITRY V. KOSYNKIN ET AL: "Highly Conductive Graphene Nanoribbons by Longitudinal Splitting of Carbon Nanotubes Using Potassium Vapor", ACS NANO, vol. 5, no. 2, 22 February 2011 (2011-02-22), pages 968 - 974, XP055202158, ISSN: 1936-0851, DOI: 10.1021/nn102326c
  • [A] MARK ET AL: "Encyclopedia of Polymer Science and Engineering, Vol. 2, Carbon Black, pages 623-637", 1 January 1985, ENCYCLOPEDIA OF POLYMER SCIENCE AND ENGINEERING. ANIONIC POLYMERIZATION TO CATIONIC POLYMERIZATION; [ENCYCLOPEDIA OF POLYMER SCIENCE AND ENGINEERING], NEW YORK, J.WILEY & SONS, US, PAGE(S) 623 - 637, XP002140365
  • See references of WO 2013184457A1

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

DOCDB simple family (publication)

WO 2013184457 A1 20131212; AU 2013271988 A1 20141204; EP 2859060 A1 20150415; EP 2859060 A4 20151230; MX 2014014606 A 20150305

DOCDB simple family (application)

US 2013043004 W 20130529; AU 2013271988 A 20130529; EP 13800948 A 20130529; MX 2014014606 A 20130529