Global Patent Index - EP 2702241 A4

EP 2702241 A4 20150916 - FLOW-INDUCED ELECTROSTATIC POWER GENERATOR FOR DOWNHOLE USE IN OIL AND GAS WELLS

Title (en)

FLOW-INDUCED ELECTROSTATIC POWER GENERATOR FOR DOWNHOLE USE IN OIL AND GAS WELLS

Title (de)

FLUSSINDUZIERTER ELEKTROSTATISCHER STROMGENERATOR ZUR VERWENDUNG IN ÖL- UND GASBOHRLÖCHERN

Title (fr)

GÉNÉRATEUR D'ÉNERGIE ÉLECTROSTATIQUE INDUITE PAR L'ÉCOULEMENT DESTINÉ À ÊTRE UTILISÉ EN FOND DE PUITS DANS LES FORAGES PÉTROLIERS ET GAZIERS

Publication

EP 2702241 A4 20150916 (EN)

Application

EP 12776615 A 20120330

Priority

  • US 201113094954 A 20110427
  • US 201113094964 A 20110427
  • US 2012031432 W 20120330

Abstract (en)

[origin: WO2012148628A2] The present invention is directed to processes (methods) for harnessing flow- induced electrostatic energy in an oil and/or gas well and using this energy to power electrical devices (e.g., flowmeters, electrically-actuated valves, etc.) downhole.

IPC 8 full level

E21B 41/00 (2006.01); E21B 17/00 (2006.01); E21B 43/08 (2006.01); E21B 47/12 (2012.01)

CPC (source: EP)

E21B 17/003 (2013.01); E21B 41/0085 (2013.01); E21B 43/086 (2013.01); E21B 47/13 (2020.05)

Citation (search report)

  • [A] US 5839508 A 19981124 - TUBEL PAULO [US], et al
  • [A] US 4223241 A 19800916 - PASZYC ALEKSY J, et al
  • [A] US 4494009 A 19850115 - YUKL TEX [US]
  • [A] HUBER P W ET AL: "Theory for electric charging in liquid hydrocarbon filtration", JOURNAL OF COLLOID AND INTERFACE SCIENCE, ACADEMIC PRESS, NEW YORK, NY, US, vol. 61, no. 1, 1 August 1977 (1977-08-01), pages 109 - 125, XP025436975, ISSN: 0021-9797, [retrieved on 19770801], DOI: 10.1016/0021-9797(77)90420-9
  • [A] HUBER P W ET AL: "Electric charging in liquid hydrocarbon filtration: A comparison of theory and experiments", JOURNAL OF COLLOID AND INTERFACE SCIENCE, ACADEMIC PRESS, NEW YORK, NY, US, vol. 61, no. 1, 1 August 1977 (1977-08-01), pages 126 - 145, XP024205586, ISSN: 0021-9797, [retrieved on 19770801], DOI: 10.1016/0021-9797(77)90421-0
  • See references of WO 2012148628A2

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 2012148628 A2 20121101; WO 2012148628 A3 20121227; AU 2012250159 A1 20131107; BR 112013027083 A2 20161227; CA 2833243 A1 20121101; EP 2702241 A2 20140305; EP 2702241 A4 20150916

DOCDB simple family (application)

US 2012031432 W 20120330; AU 2012250159 A 20120330; BR 112013027083 A 20120330; CA 2833243 A 20120330; EP 12776615 A 20120330