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James A Tencate

from White Rock, NM
Age ~66
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Also known as:
James Alan Ten, James Cate, James Summa, Jim Alan Ten
Phone and address:
542 Todd Loop, Los Alamos, NM 87544
(505) 672-1953
Related to:
Jen SummaEmily E Tencate, 31John J Tencate, 94Beatrice A Tencate, 90Jennifer M SummaEmily E TencateDavid M Tencate, 63Deborah A Summa, 61Jennifer M Summa, 57Lauren L Tencate
Connected to:
Andrew J Tencer, 33Jennie M Tench, 42Judy P Tench, 81Julie A Tench, 53Kelly H Tench, 49Lori E Tench, 50Rick L Tencheira, 71Wendell L Tendayi, 61Clint A Tendean, 38Legal D Tender

James Tencate Phones & Addresses

  • 542 Todd Loop, Los Alamos, NM 87544 (505) 672-1953
  • 300 Cheryl Ave, Los Alamos, NM 87544 (505) 672-1953
  • White Rock, NM
  • Grandville, MI
  • Austin, TX

Education

Degree: Associate degree or higher

Publications

Us Patents

System And Method To Estimate Compressional To Shear Velocity (Vp/Vs) Ratio In A Region Remote From A Borehole

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US Patent:
8289808, Oct 16, 2012
Filed:
May 11, 2009
Appl. No.:
12/463796
Inventors:
Cung Vu - Houston TX, US
Kurt T. Nihei - Oakland CA, US
Denis P. Schmitt - Dhahran, SA
Christopher Skelt - Houston TX, US
Paul A. Johnson - Santa Fe NM, US
Robert Guyer - Reno NV, US
James A. TenCate - Los Alamos NM, US
Pierre-Yves Le Bas - Los Alamos NM, US
International Classification:
G01V 1/00
US Classification:
367 31, 367 35
Abstract:
In some aspects of the disclosure, a method for creating three-dimensional images of non-linear properties and the compressional to shear velocity ratio in a region remote from a borehole using a conveyed logging tool is disclosed. In some aspects, the method includes arranging a first source in the borehole and generating a steered beam of elastic energy at a first frequency; arranging a second source in the borehole and generating a steerable beam of elastic energy at a second frequency, such that the steerable beam at the first frequency and the steerable beam at the second frequency intercept at a location away from the borehole; receiving at the borehole by a sensor a third elastic wave, created by a three wave mixing process, with a frequency equal to a difference between the first and second frequencies and a direction of propagation towards the borehole; determining a location of a three wave mixing region based on the arrangement of the first and second sources and on properties of the third wave signal; and creating three-dimensional images of the non-linear properties using data recorded by repeating the generating, receiving and determining at a plurality of azimuths, inclinations and longitudinal locations within the borehole. The method is additionally used to generate three dimensional images of the ratio of compressional to shear acoustic velocity of the same volume surrounding the borehole.

System And Method To Create Three-Dimensional Images Of Non-Linear Acoustic Properties In A Region Remote From A Borehole

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US Patent:
8345509, Jan 1, 2013
Filed:
May 11, 2009
Appl. No.:
12/463802
Inventors:
Cung Vu - Houston TX, US
Kurt T. Nihei - Oakland CA, US
Denis P. Schmitt - Dhahran, SA
Christopher Skelt - Houston TX, US
Paul A. Johnson - Santa Fe NM, US
Robert Guyer - Reno NV, US
James A. TenCate - Los Alamos NM, US
Pierre-Yves Le Bas - Los Alamos NM, US
Assignee:
Chevron U.S.A., Inc. - San Ramon CA
Los Alamos National Security - Los Alamos NM
International Classification:
G01V 1/44
G01V 1/50
G01S 1/72
US Classification:
367 32, 367 49, 367 57, 367 72, 367117
Abstract:
In some aspects of the disclosure, a method for creating three-dimensional images of non-linear properties and the compressional to shear velocity ratio in a region remote from a borehole using a conveyed logging tool is disclosed. In some aspects, the method includes arranging a first source in the borehole and generating a steered beam of elastic energy at a first frequency; arranging a second source in the borehole and generating a steerable beam of elastic energy at a second frequency, such that the steerable beam at the first frequency and the steerable beam at the second frequency intercept at a location away from the borehole; receiving at the borehole by a sensor a third elastic wave, created by a three wave mixing process, with a frequency equal to a difference between the first and second frequencies and a direction of propagation towards the borehole; determining a location of a three wave mixing region based on the arrangement of the first and second sources and on properties of the third wave signal; and creating three-dimensional images of the non-linear properties using data recorded by repeating the generating, receiving and determining at a plurality of azimuths, inclinations and longitudinal locations within the borehole. The method is additionally used to generate three dimensional images of the ratio of compressional to shear acoustic velocity of the same volume surrounding the borehole.

Device And Method For Imaging Of Non-Linear And Linear Properties Of Formations Surrounding A Borehole

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US Patent:
8553495, Oct 8, 2013
Filed:
Sep 29, 2010
Appl. No.:
12/893573
Inventors:
Paul A. Johnson - Santa Fe NM, US
James A. Tencate - Los Alamos NM, US
Pierre-Yves Le Bas - Los Alamos NM, US
Robert Guyer - Reno NV, US
Cung Khac Vu - Houston TX, US
Christopher Skelt - Houston TX, US
Assignee:
Chevron U.S.A. Inc. - San Ramon CA
International Classification:
G01V 1/50
G01V 1/40
US Classification:
367 35, 367 31, 367 32, 181105
Abstract:
In some aspects of the disclosure, a method and an apparatus is disclosed for investigating material surrounding the borehole. The method includes generating within a borehole an intermittent low frequency vibration that propagates as a tube wave longitudinally to the borehole and induces a nonlinear response in one or more features in the material that are substantially perpendicular to a longitudinal axis of the borehole; generating within the borehole a sequence of high frequency pulses directed such that they travel longitudinally to the borehole within the surrounding material; and receiving, at one or more receivers positionable in the borehole, a signal that includes components from the low frequency vibration and the sequence of high frequency pulses during intermittent generation of the low frequency vibration, to investigate the material surrounding the borehole.

Device And Method For Imaging Of Non-Linear And Linear Properties Of Formations Surrounding A Borehole

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US Patent:
8576661, Nov 5, 2013
Filed:
Sep 29, 2010
Appl. No.:
12/893530
Inventors:
Paul A. Johnson - Santa Fe NM, US
James A. Tencate - Los Alamos NM, US
Pierre-Yves Le Bas - Los Alamos NM, US
Robert Guyer - Reno NV, US
Cung Khac Vu - Houston TX, US
Christopher Skelt - Houston TX, US
Assignee:
Chevron U.S.A. Inc. - Sam Ramon CA
International Classification:
G01V 1/50
G01V 1/40
US Classification:
367 35, 367 31, 367 32, 181105
Abstract:
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.

Resonant Nonlinear Ultrasound Spectroscopy

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US Patent:
63308274, Dec 18, 2001
Filed:
Nov 19, 1999
Appl. No.:
9/444219
Inventors:
Paul A. Johnson - Santa Fe NM
James A. TenCate - Los Alamos NM
Robert A. Guyer - Amherst MA
Koen E. A. Van Den Abeele - Sint-Niklaas, BE
Assignee:
The Regents of the University of California - Los Alamos NM
International Classification:
G01H 1300
US Classification:
73579
Abstract:
Components with defects are identified from the response to strains applied at acoustic and ultrasound frequencies. The relative resonance frequency shift. vertline. DELTA. function. /. function. sub. vertline. , is determined as a function of applied strain amplitude for an acceptable component, where. function. sub. 0 is the frequency of the resonance peak at the lowest amplitude of applied strain and. DELTA. function. is the frequency shift of the resonance peak of a selected mode to determine a reference relationship. Then, the relative resonance frequency shift. vertline. DELTA. function. /. function. sub. 0 is determined as a function of applied strain for a component under test, where fo. function. sub. 0 the frequency of the resonance peak at the lowest amplitude of applied strain and. DELTA. function. is the frequency shift of the resonance peak to determine a quality test relationship.
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James A Tencate from White Rock, NM, age ~66 Get Report