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1. (WO2017196375) BOTTOM HOLE ASSEMBLIES

Pub. No.:    WO/2017/196375    International Application No.:    PCT/US2016/034070
Publication Date: Fri Nov 17 00:59:59 CET 2017 International Filing Date: Thu May 26 01:59:59 CEST 2016
IPC: E21B 17/00
E21B 17/02
E21B 17/03
E21B 23/00
Applicants: HALLIBURTON ENERGY SERVICES, INC.
Inventors: RANDLE, Hartley
Title: BOTTOM HOLE ASSEMBLIES
Abstract:
A bottom hole assembly may include a shaft having threads, a first fastener member positioned on the shaft, the first fastener member having first fastener threads that mesh with a first portion of the threads on the shaft, and a second fastener member positioned downhole of the first fastener member on the shaft, the second fastener member having second fastener threads that mesh with a second portion of the threads on the shaft, wherein the first fastener member and the second fastener member interact with each other such that an uphole face of the first fastener threads are pressed against a downhole face of the first portion of the threads on the shaft and a downhole face of the second fastener threads are pressed against an uphole face of the second portion of the threads on the shaft.