(19)
(11) EP 2 981 672 A2

(12)

(88) Date of publication A3:
27.11.2014

(43) Date of publication:
10.02.2016 Bulletin 2016/06

(21) Application number: 14725287.8

(22) Date of filing: 17.03.2014
(51) International Patent Classification (IPC): 
E21B 47/00(2012.01)
(86) International application number:
PCT/US2014/030286
(87) International publication number:
WO 2014/165314 (09.10.2014 Gazette 2014/41)
(84) Designated Contracting States:
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 States:
BA ME

(30) Priority: 02.04.2013 US 201313855463

(71) Applicant: Halliburton Energy Services, Inc.
Houston, TX 77032 (US)

(72) Inventors:
  • RODDY, Craig W.
    Duncan, Oklahoma 73533 (US)
  • COVINGTON, Ricky L.
    Frisco, Texas 75034 (US)

(74) Representative: Turner, Craig Robert 
A.A. Thornton & Co. 10 Old Bailey
London EC4M 7NG
London EC4M 7NG (GB)

   


(54) SURFACE WELLBORE OPERATING EQUIPMENT UTILIZING MEMS SENSORS