Piezotube borehole seismic source
Abstract
A piezoelectric borehole source capable of permanent or semipermanent insertion into a well for uninterrupted well operations is described. The source itself comprises a series of piezoelectric rings mounted to an insulative mandrel internally sized to fit over a section of well tubing, the rings encased in a protective housing and electrically connected to a power source. Providing an AC voltage to the rings will cause expansion and contraction sufficient to create a sonic pulse. The piezoelectric borehole source fits into a standard well, and allows for uninterrupted pass-through of production tubing, and other tubing and electrical cables. Testing using the source may be done at any time, even concurrent with well operations, during standard production.
- Inventors:
- Issue Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1130469
- Patent Number(s):
- 8717850
- Application Number:
- 12/444,136
- Assignee:
- The Regents of the University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL B06B - METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, {e.g.} FOR PERFORMING MECHANICAL WORK IN GENERAL
G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS
- DOE Contract Number:
- AC02-05CH11231
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2007 Oct 30
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Daley, Tom M, Solbau, Ray D, and Majer, Ernest L. Piezotube borehole seismic source. United States: N. p., 2014.
Web.
Daley, Tom M, Solbau, Ray D, & Majer, Ernest L. Piezotube borehole seismic source. United States.
Daley, Tom M, Solbau, Ray D, and Majer, Ernest L. Tue .
"Piezotube borehole seismic source". United States. https://www.osti.gov/servlets/purl/1130469.
@article{osti_1130469,
title = {Piezotube borehole seismic source},
author = {Daley, Tom M and Solbau, Ray D and Majer, Ernest L},
abstractNote = {A piezoelectric borehole source capable of permanent or semipermanent insertion into a well for uninterrupted well operations is described. The source itself comprises a series of piezoelectric rings mounted to an insulative mandrel internally sized to fit over a section of well tubing, the rings encased in a protective housing and electrically connected to a power source. Providing an AC voltage to the rings will cause expansion and contraction sufficient to create a sonic pulse. The piezoelectric borehole source fits into a standard well, and allows for uninterrupted pass-through of production tubing, and other tubing and electrical cables. Testing using the source may be done at any time, even concurrent with well operations, during standard production.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 06 00:00:00 EDT 2014},
month = {Tue May 06 00:00:00 EDT 2014}
}
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