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Title: Device and method for imaging of non-linear and linear properties of formations surrounding a borehole

Patent ·
OSTI ID:1107801
; ; ; ; ;

In some aspects of the disclosure, a method and an apparatus is disclosed for investigating material surrounding the borehole. The method includes generating a first low frequency acoustic wave within the borehole, wherein the first low frequency acoustic wave induces a linear and a nonlinear response in one or more features in the material that are substantially perpendicular to a radius of the borehole; directing a first sequence of high frequency pulses in a direction perpendicularly with respect to the longitudinal axis of the borehole into the material contemporaneously with the first acoustic wave; and receiving one or more second high frequency pulses at one or more receivers positionable in the borehole produced by an interaction between the first sequence of high frequency pulses and the one or more features undergoing linear and nonlinear elastic distortion due to the first low frequency acoustic wave to investigate the material surrounding the borehole.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-06NA25396
Assignee:
Chevron U.S.A. Inc. (Sam Ramon, CA)
Patent Number(s):
8,576,661
Application Number:
12/893,530
OSTI ID:
1107801
Country of Publication:
United States
Language:
English

References (20)

High resolution device and method for imaging concealed objects within an obscuring medium patent April 2001
Highly-directional acoustic source for use in borehole surveys patent August 1976
Methods of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications patent November 2007
High efficiency parametric sonar patent March 2004
Nonlinear generation of elastic waves in granite and sandstone: Continuous wave and travel time observations journal January 1989
Bed continuity detection and analysis using crosswell seismic data patent September 1992
Method of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications patent December 2008
Cross-well connectivity mapping including separation of compressional and shear wave energy patent December 1999
Ultrasonic diagnostic imaging of nonlinearly intermodulated and harmonic frequency components patent August 2002
Ultrasonic Study of Three-Phonon Interactions. II. Experimental Results journal November 1964
Mapping reservoir characteristics using earth's nonlinearity as a seismic attribute patent October 2003
Nonlinear generation of elastic waves in crystalline rock journal January 1987
Cross-well seismic mapping method for determining non-linear properties of earth formations between wellbores patent January 2001
Parametric Acoustic Array journal April 1963
Dynamic nonlinear elasticity in geomaterials journal July 2001
Interaction of Elastic Waves in an Isotropic Solid journal January 1963
Identification of stress induced anisotropy in formations patent March 1995
Ground penetrating sonar patent February 1998
Apparatus for acoustically investigating a borehole patent May 1983
Measurement of formation characteristics using acoustic borehole tool having sources of different frequencies patent May 1996

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