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Title: Method and apparatus for coupling seismic sensors to a borehole wall

Abstract

A method and apparatus suitable for coupling seismic or other downhole sensors to a borehole wall in high temperature and pressure environments. In one embodiment, one or more metal bellows mounted to a sensor module are inflated to clamp the sensor module within the borehole and couple an associated seismic sensor to a borehole wall. Once the sensing operation is complete, the bellows are deflated and the sensor module is unclamped by deflation of the metal bellows. In a further embodiment, a magnetic drive pump in a pump module is used to supply fluid pressure for inflating the metal bellows using borehole fluid or fluid from a reservoir. The pump includes a magnetic drive motor configured with a rotor assembly to be exposed to borehole fluid pressure including a rotatable armature for driving an impeller and an associated coil under control of electronics isolated from borehole pressure.

Inventors:
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175279
Patent Number(s):
6,868,035
Application Number:
10/288,963
Assignee:
Bechtel BWXT Idaho, LCC (Idaho Falls, ID)
DOE Contract Number:  
AC07-99ID13727
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

West, Phillip B. Method and apparatus for coupling seismic sensors to a borehole wall. United States: N. p., 2005. Web.
West, Phillip B. Method and apparatus for coupling seismic sensors to a borehole wall. United States.
West, Phillip B. 2005. "Method and apparatus for coupling seismic sensors to a borehole wall". United States. https://www.osti.gov/servlets/purl/1175279.
@article{osti_1175279,
title = {Method and apparatus for coupling seismic sensors to a borehole wall},
author = {West, Phillip B.},
abstractNote = {A method and apparatus suitable for coupling seismic or other downhole sensors to a borehole wall in high temperature and pressure environments. In one embodiment, one or more metal bellows mounted to a sensor module are inflated to clamp the sensor module within the borehole and couple an associated seismic sensor to a borehole wall. Once the sensing operation is complete, the bellows are deflated and the sensor module is unclamped by deflation of the metal bellows. In a further embodiment, a magnetic drive pump in a pump module is used to supply fluid pressure for inflating the metal bellows using borehole fluid or fluid from a reservoir. The pump includes a magnetic drive motor configured with a rotor assembly to be exposed to borehole fluid pressure including a rotatable armature for driving an impeller and an associated coil under control of electronics isolated from borehole pressure.},
doi = {},
url = {https://www.osti.gov/biblio/1175279}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {3}
}