(19)
(11) EP 3 565 951 A1

(12)

(43) Date of publication:
13.11.2019 Bulletin 2019/46

(21) Application number: 17889796.3

(22) Date of filing: 05.01.2017
(51) International Patent Classification (IPC): 
E21B 47/10(2012.01)
E21B 47/00(2012.01)
 E21B 21/08(2006.01)
(86) International application number:
PCT/CN2017/070265
(87) International publication number:
WO 2018/126392 (12.07.2018 Gazette 2018/28)
(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
Designated Validation States:
MA MD

(71) Applicant: General Electric Company
Schenectady, NY 12345 (US)

(72) Inventors:
  • ZHOU, Jian
    Shanghai 201203 (CN)
  • MEI, Yan
    Shanghai 201203 (CN)
  • LIAO, Yi
    Oklahoma City OK 73104 (US)
  • LU, Weijia
    Shanghai 201203 (CN)
  • YE, Jing
    Shanghai 201203 (CN)
  • SHANG, Weihua
    Shanghai 201203 (CN)
  • LI, Shiguang
    Shanghai 201203 (CN)
  • NIU, Ran
    Shanghai 201203 (CN)

(74) Representative: Dehns 
St. Bride's House 10 Salisbury Square
London EC4Y 8JD
London EC4Y 8JD (GB)

   


(54) SENSING SUB-ASSEMBLY AND METHOD OF OPERATING A HYDRAULIC FRACTURING SYSTEM