(19)
(11) EP 3 444 426 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
13.03.2019 Bulletin 2019/11

(43) Date of publication A2:
20.02.2019 Bulletin 2019/08

(21) Application number: 18173422.9

(22) Date of filing: 21.05.2018
(51) International Patent Classification (IPC): 
E21B 19/16(2006.01)
(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:
KH MA MD TN

(30) Priority: 26.05.2017 US 201715607049

(71) Applicant: Weatherford Technology Holdings, LLC
Houston, TX 77056 (US)

(72) Inventors:
  • WERN, Frank
    30655 Hannover (DE)
  • AMEZAGA, Federico
    Cypress, TX Texas 77433 (US)

(74) Representative: Talbot-Ponsonby, Daniel Frederick 
Marks & Clerk LLP Fletcher House Heatley Road The Oxford Science Park
Oxford OX4 4GE
Oxford OX4 4GE (GB)

   


(54) LOCAL ELECTRIC POWER GENERATION FOR TONG CONTROL SYSTEM


(57) A method and apparatus for tong power and control. A tong includes a tong control system; and a local electric power generation system, wherein the tong control system is powered by the local electric power generation system. A method includes supplying hydraulic power to a motor on a tong; driving an electric generator on the tong with the motor; and supplying electric power to a tong control system on the tong. A method includes installing a tong control system on a tong; and installing a local electric power generation system on the tong, wherein the tong control system is powered by the local electric power generation system.







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