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Title: Method for enhancing low frequency output of impulsive type seismic energy sources and its application to a seismic energy source for use while drilling

Abstract

A method for operating an impulsive type seismic energy source in a firing sequence having at least two actuations for each seismic impulse to be generated by the source. The actuations have a time delay between them related to a selected energy frequency peak of the source output. One example of the method is used for generating seismic signals in a wellbore and includes discharging electric current through a spark gap disposed in the wellbore in at least one firing sequence. The sequence includes at least two actuations of the spark gap separated by an amount of time selected to cause acoustic energy resulting from the actuations to have peak amplitude at a selected frequency.

Inventors:
; ;
Publication Date:
Research Org.:
Technology International, Inc., Kingwood, TX (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1164673
Patent Number(s):
8,902,712
Application Number:
12/337,406
Assignee:
Technology International, Inc. (Kingwood, TX) NETL
DOE Contract Number:  
FC26-04NT42242
Resource Type:
Patent
Resource Relation:
Patent File Date: 2008 Dec 17
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; 15 GEOTHERMAL ENERGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Radtke, Robert P, Stokes, Robert H, and Glowka, David A. Method for enhancing low frequency output of impulsive type seismic energy sources and its application to a seismic energy source for use while drilling. United States: N. p., 2014. Web.
Radtke, Robert P, Stokes, Robert H, & Glowka, David A. Method for enhancing low frequency output of impulsive type seismic energy sources and its application to a seismic energy source for use while drilling. United States.
Radtke, Robert P, Stokes, Robert H, and Glowka, David A. Tue . "Method for enhancing low frequency output of impulsive type seismic energy sources and its application to a seismic energy source for use while drilling". United States. https://www.osti.gov/servlets/purl/1164673.
@article{osti_1164673,
title = {Method for enhancing low frequency output of impulsive type seismic energy sources and its application to a seismic energy source for use while drilling},
author = {Radtke, Robert P and Stokes, Robert H and Glowka, David A},
abstractNote = {A method for operating an impulsive type seismic energy source in a firing sequence having at least two actuations for each seismic impulse to be generated by the source. The actuations have a time delay between them related to a selected energy frequency peak of the source output. One example of the method is used for generating seismic signals in a wellbore and includes discharging electric current through a spark gap disposed in the wellbore in at least one firing sequence. The sequence includes at least two actuations of the spark gap separated by an amount of time selected to cause acoustic energy resulting from the actuations to have peak amplitude at a selected frequency.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 02 00:00:00 EST 2014},
month = {Tue Dec 02 00:00:00 EST 2014}
}

Patent:

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