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1. (WO2017151131) INNER BARREL SHEAR ZONE FOR A CORING TOOL

Pub. No.:    WO/2017/151131    International Application No.:    PCT/US2016/020616
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Fri Mar 04 00:59:59 CET 2016
IPC: E21B 25/00
E21B 10/02
E21B 17/00
Applicants: HALLIBURTON ENERGY SERVICES, INC.
Inventors: MAGEREN, Olivier
Title: INNER BARREL SHEAR ZONE FOR A CORING TOOL
Abstract:
Systems and methods are disclosed for an inner barrel system. The inner barrel system that includes a coring inner barrel. The system also includes a connector sub coupled to the coring inner barrel. The connector sub includes a tubular wall defining a central axis and a shear zone extending longitudinally along at least a portion of the tubular wall. The shear zone severs with less force than the coring inner barrel.