(19)
(11)EP 3 422 054 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
23.01.2019 Bulletin 2019/04

(43)Date of publication A2:
02.01.2019 Bulletin 2019/01

(21)Application number: 18162458.6

(22)Date of filing:  19.03.2018
(51)International Patent Classification (IPC): 
G01V 13/00(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: 07.04.2017 US 201715481713

(71)Applicant: SERCEL
44470 Carquefou (FR)

(72)Inventor:
  • BRAVARD, Nicolas
    44470 CARQUEFOU (FR)

(74)Representative: Dutreix, Hugues Ours 
Ipsilon 3, rue Edouard Nignon
44300 Nantes
44300 Nantes (FR)

  


(54)GAUGE WITH ADAPTIVE CALIBRATION AND METHOD


(57) Memory gauge and method for processing recorded raw data acquired with a memory gauge in a well. The method includes selecting a first calibration table (Ci), of the memory gauge, that has a highest calibration value for the measured parameter; performing a first analysis of the recorded raw data using the first calibration table (Ci) to determine a highest measured value of the measured parameter; comparing the highest measured value of the measured parameter with highest calibration values of the plural calibration tables of the memory gauge; and when a highest calibration value of a second calibration table is closer to the highest measured value of the measured parameter than the highest calibration value of the first calibration table, selecting the second calibration table (C2); and performing a second analysis of the recorded raw data using the second calibration table (C2) to generate measured values of the measured parameter.







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