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Title: Methods and apparatus of suppressing tube waves within a bore hole and seismic surveying systems incorporating same

Abstract

Methods and apparatus for attenuating waves in a bore hole, and seismic surveying systems incorporating the same. In one embodiment, an attenuating device includes a soft compliant bladder coupled to a pressurized gas source. A pressure regulating system reduces the pressure of the gas from the gas source prior to entering the bladder and operates in conjunction with the hydrostatic pressure of the fluid in a bore hole to maintain the pressure of the bladder at a specified pressure relative to the surrounding bore hole pressure. Once the hydrostatic pressure of the bore hole fluid exceeds that of the gas source, bore hole fluid may be admitted into a vessel of the gas source to further compress and displace the gas contained therein. In another embodiment, a water-reactive material may be used to provide gas to the bladder wherein the amount of gas generated by the water-reactive material may depend on the hydrostatic pressure of the bore hole fluid.

Inventors:
;
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175574
Patent Number(s):
6,973,993
Application Number:
10/881,529
Assignee:
Battelle Energy Alliance, LLC (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., and Haefner, Daryl. Methods and apparatus of suppressing tube waves within a bore hole and seismic surveying systems incorporating same. United States: N. p., 2005. Web.
West, Phillip B., & Haefner, Daryl. Methods and apparatus of suppressing tube waves within a bore hole and seismic surveying systems incorporating same. United States.
West, Phillip B., and Haefner, Daryl. Tue . "Methods and apparatus of suppressing tube waves within a bore hole and seismic surveying systems incorporating same". United States. https://www.osti.gov/servlets/purl/1175574.
@article{osti_1175574,
title = {Methods and apparatus of suppressing tube waves within a bore hole and seismic surveying systems incorporating same},
author = {West, Phillip B. and Haefner, Daryl},
abstractNote = {Methods and apparatus for attenuating waves in a bore hole, and seismic surveying systems incorporating the same. In one embodiment, an attenuating device includes a soft compliant bladder coupled to a pressurized gas source. A pressure regulating system reduces the pressure of the gas from the gas source prior to entering the bladder and operates in conjunction with the hydrostatic pressure of the fluid in a bore hole to maintain the pressure of the bladder at a specified pressure relative to the surrounding bore hole pressure. Once the hydrostatic pressure of the bore hole fluid exceeds that of the gas source, bore hole fluid may be admitted into a vessel of the gas source to further compress and displace the gas contained therein. In another embodiment, a water-reactive material may be used to provide gas to the bladder wherein the amount of gas generated by the water-reactive material may depend on the hydrostatic pressure of the bore hole fluid.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {12}
}

Patent:

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