公开(公告)号：US10174608B2

公开(公告)日：2019-01-08

申请号：US15500717

申请日：2015-07-31

Applicant: Schlumberger Technology Corporation

Inventor： Vincent Chatelet ,  Axel Quignard ,  Peter Wraight ,  Jean-Pierre Poyet ,  Fabien Nibodeau ,  Luke Perkins

IPC: E21B47/12 ,  G01V5/10

Abstract: An installation for intervention in a well, comprises a lower assembly comprising a neutron generator and a power source electrically connected to the neutron generator; a surface assembly comprising one or more safety devices, each safety device being either in a safe state or an unsafe state; and a communication module that connects the lower and surface assemblies. The surface assembly also comprises a surface transmitting device for transmitting data to the downhole assembly via the communication module including a first transmitter for transmitting an activating command, where the first transmitter transmits the activating command only if each of the safety device is in a safe state, and a second transmitter for transmitting a stopping command, where the second transmitter transmits the stopping command if one of the safety device is in an unsafe state.

公开(公告)号：US20170226848A1

公开(公告)日：2017-08-10

申请号：US15500717

申请日：2015-07-31

Applicant: Schlumberger Technology Corporation

Inventor： Vincent Chatelet ,  Axel Quignard ,  Peter Wraight ,  Jean-Pierre Poyet ,  Fabien Nibodeau ,  Luke Perkins

IPC: E21B47/12 ,  G01V5/10

CPC classification number: E21B47/122 ,  E21B47/12 ,  G01V5/10 ,  G01V11/002

Abstract: An installation for intervention in a well, comprises a lower assembly comprising a neutron generator and a power source electrically connected to the neutron generator; a surface assembly comprising one or more safety devices, each safety device being either in a safe state or an unsafe state; and a communication module that connects the lower and surface assemblies. The surface assembly also comprises a surface transmitting device for transmitting data to the downhole assembly via the communication module including a first transmitter for transmitting an activating command, where the first transmitter transmits the activating command only if each of the safety device is in a safe state, and a second transmitter for transmitting a stopping command, where the second transmitter transmits the stopping command if one of the safety device is in an unsafe state.