DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Time-reversed nonlinear acoustics for downhole pressure measurements

Abstract

Apparatus (10) and methods for combining time reversal and elastic nonlinearity of formation materials for qualtitatively probing for over-pressured regions down hole in advance of a well drilling bit, to determine the distance to the over-pressured region, and for accurately measuring pore pressure downhole in a formation, are described. Classical and reciprocal time reversal methods may be utilized to achieve these measurements.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1840315
Patent Number(s):
11079505
Application Number:
16/083,441
Assignee:
Triad National Security, LLC (Los Alamos, NM); CHEVRON U.S.A. INC. (San Ramon, CA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Patent
Resource Relation:
Patent File Date: 03/09/2017
Country of Publication:
United States
Language:
English

Citation Formats

Johnson, Paul A., Ulrich, II, Timothy James, Le Bas, Pierre-Yves, Guyer, Robert A., Goodman, Harvey E., and Remillieux, Marcel C. Time-reversed nonlinear acoustics for downhole pressure measurements. United States: N. p., 2021. Web.
Johnson, Paul A., Ulrich, II, Timothy James, Le Bas, Pierre-Yves, Guyer, Robert A., Goodman, Harvey E., & Remillieux, Marcel C. Time-reversed nonlinear acoustics for downhole pressure measurements. United States.
Johnson, Paul A., Ulrich, II, Timothy James, Le Bas, Pierre-Yves, Guyer, Robert A., Goodman, Harvey E., and Remillieux, Marcel C. Tue . "Time-reversed nonlinear acoustics for downhole pressure measurements". United States. https://www.osti.gov/servlets/purl/1840315.
@article{osti_1840315,
title = {Time-reversed nonlinear acoustics for downhole pressure measurements},
author = {Johnson, Paul A. and Ulrich, II, Timothy James and Le Bas, Pierre-Yves and Guyer, Robert A. and Goodman, Harvey E. and Remillieux, Marcel C.},
abstractNote = {Apparatus (10) and methods for combining time reversal and elastic nonlinearity of formation materials for qualtitatively probing for over-pressured regions down hole in advance of a well drilling bit, to determine the distance to the over-pressured region, and for accurately measuring pore pressure downhole in a formation, are described. Classical and reciprocal time reversal methods may be utilized to achieve these measurements.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {8}
}

Works referenced in this record:

Pipelined pulse-echo scheme for an acoustic image tool for use downhole
patent, August 2015


Measurement while drilling apparatus and method of using the same
patent-application, March 2007


Encapsulated phased array segment for downhole applications
patent, September 2019


Device and method for imaging of non-linear and linear properties of formations surrounding a borehole
patent, October 2013


Device and Method for Imaging of Non-Linear and Linear Properties of Formations Surrounding a Borehole
patent-application, March 2012


Time-Reversed Nonlinear Acoustics for Downhole Pressure Measurements
patent-application, April 2019


Method and tool for evaluating fluid dynamic properties of a cement annulus surrounding a casing
patent, July 2010


Fast model based inversion of acoustic impedance of annulus behind casing
patent, July 2018


Super-resolution in time-reversal acoustics
journal, January 2002


Method for predicting pore pressure
patent, September 2007


Acoustic method for estimating mechanical properties of a material and apparatus therefor
patent, September 2005


Wellbore cement simulator
patent, February 2019


Method and device for checking structures by time reversal
patent, April 2016


Device and method for imaging of non-linear and linear properties of formations surrounding a borehole
patent, November 2013


Method for sonic indication of voids in casing cement
patent, December 2009