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1. (WO2017034924) BOREHOLE ACOUSTIC LOGGING RECEIVER QUALITY CONTROL AND CALIBRATION

Pub. No.:    WO/2017/034924    International Application No.:    PCT/US2016/047568
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Fri Aug 19 01:59:59 CEST 2016
IPC: E21B 47/00
G01V 1/40
G01V 1/48
Applicants: HALLIBURTON ENERGY SERVICES, INC.
Inventors: SUN, Baichun
WALKER, Kristoffer T.
TRACADAS, Philip W.
LI, Wei
WANG, Ruijia
KAINER, Gary
CHANG, Chung
Title: BOREHOLE ACOUSTIC LOGGING RECEIVER QUALITY CONTROL AND CALIBRATION
Abstract:
A method and system of performing quality control for a downhole tool. An acoustic source is employed to generate a Stoneley wave, and acoustic receivers generate signals indicative of the Stoneley wave. A reference value is calculated from the signals to assess the quality of the receivers. The reference value may be for a selected receiver or a selected receiver ring. The reference value is compared to a threshold deviation to determine if the reference value is outside the threshold deviation. If the reference value is outside of the threshold deviation, the deviation for one of the selected receiver or the selected receiver ring is corrected.