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1. (WO2018125918) LOGGING-WHILE-DRILLING SPECTRAL AND AZIMUTHAL GAMMA RAY APPARATUS AND METHODS

Pub. No.:    WO/2018/125918    International Application No.:    PCT/US2017/068536
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Thu Dec 28 00:59:59 CET 2017
IPC: E21B 47/01
E21B 49/00
G01V 5/00
G01V 5/06
G01V 5/12
Applicants: SCIENTIFIC DRILLING INTERNATIONAL, INC.
Inventors: MICKAEL, Medhat
Title: LOGGING-WHILE-DRILLING SPECTRAL AND AZIMUTHAL GAMMA RAY APPARATUS AND METHODS
Abstract:
A downhole assembly includes a drill collar, the drill collar having an outer wall and an insert, the insert positioned within drill collar. The insert has a bore therethrough. The downhole assembly further includes at least one sensor within the insert, wherein the sensor is a gamma ray detector.