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Rebecca C Jachmann

from Spring, TX
Age ~43
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Also known as:
Rebecca Corina Jachmann, Rebecca C Lachmann, Rebecca C Juchmann, Becky Jachmann
Related to:
David A Jachmann, 52Susan E Jachmann, 48Jachmann BrunoRobert B Jachmann, 47Charlotte W Maynard, 50Corina M Jachmann, 78Lydia JachmannJachmann Siegfried, 81Alison D Jachmann, 49
Connected to:
Alicia R Jachmich, 43Jacob J Jachna, 84Jody T Jachna, 55Alexander Jachno, 69Veronica L Jachowicz, 64Jan Z Jachym, 34Michael J Jachym, 73Anna Jachymiak, 39Gerald L Jacilla, 71Deborah S Jacintho, 80

Rebecca Jachmann Phones & Addresses

  • Spring, TX
  • Houston, TX
  • Kingwood, TX
  • Downingtown, PA
  • Exton, PA
  • Berkeley, CA
  • Salt Lake City, UT
  • Lehi, UT

Work

Company: Halliburton Apr 2012 Position: Principle scientist

Education

Degree: Doctor of Philosophy (Ph.D.) School / High School: University of California, Berkeley 2002 to 2007 Specialities: Physical Chemistry

Skills

Nmr • Physics • Matlab • Formation Evaluation • Simulations • Engineering • Electrochemistry • Instrumentation • Analytical Chemistry • Machining • Microsoft Excel • Electronics • Milling • Experimentation • Comsol • Microsoft Word • Characterization • Nuclear Magnetic Resonance • Stimulation • Lathe • Sensors • Research • Science • Microsoft Office

Industries

Oil & Energy

Resumes

Resumes

Rebecca Jachmann Photo 1

Principle Scientist

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Location:
4122 west Main St, Artesia, NM 88210
Industry:
Oil & Energy
Work:
Halliburton since Apr 2012
Principle Scientist
Halliburton - North Belt, Houston Dec 2007 - Apr 2009
Senior Scientist
UC Berkeley - Berkeley, CA Aug 2002 - Aug 2007
Graduate Student
Education:
University of California, Berkeley 2002 - 2007
Doctor of Philosophy (Ph.D.), Physical Chemistry University of Utah 1999 - 2002
Bachelor’s of science, Chemistry, emphysis physics
Skills:
Nmr
Physics
Matlab
Formation Evaluation
Simulations
Engineering
Electrochemistry
Instrumentation
Analytical Chemistry
Machining
Microsoft Excel
Electronics
Milling
Experimentation
Comsol
Microsoft Word
Characterization
Nuclear Magnetic Resonance
Stimulation
Lathe
Sensors
Research
Science
Microsoft Office

Publications

Us Patents

Nuclear Magnetic Resonance Logging Tool Having An Array Of Antennas

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US Patent:
20130093422, Apr 18, 2013
Filed:
Jun 16, 2010
Appl. No.:
13/519647
Inventors:
Marian L. Morys - Downingtown PA, US
Rebecca C. Jachmann - Downingtown PA, US
Robert Epstein - Downingtown PA, US
International Classification:
G01V 3/32
US Classification:
324303
Abstract:
Various disclosed nuclear magnetic resonance (NMR) logging systems and methods employ an array of antennas to provide increased resolution without sacrificing signal-to-noise ratio. Certain method embodiments include: establishing a static magnetic field (B) with a tool moving along a borehole through a formation; concurrently driving a multiple antenna cells to produce a radio frequency field (B) in said formation; measuring an individual response from each antenna cell as nuclear spins undergo precession in the formation; and determining at least one characteristic relaxation time of the formation based at least in part on the individual response. The individual responses can be associated with positions where the individual responses were measured, and the relaxation time can be determined from a combination of those responses associated with a given position. Certain responses may be excluded due to tool motion that degrades the measured response.

Measuring Formation Properties And Drilling Mud Properties Using Nuclear Magnetic Resonance In A Wellbore

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US Patent:
20230084875, Mar 16, 2023
Filed:
Sep 15, 2021
Appl. No.:
17/475574
Inventors:
- Houston TX, US
Rebecca Jachmann - Spring TX, US
International Classification:
E21B 44/00
E21B 49/00
E21B 49/08
E21B 47/085
Abstract:
A measurement tool may be positioned downhole in a wellbore for measuring formation properties and drilling mud properties during a drilling operation. The measurement tool may include a body and an antenna. The body may include magnets for generating a magnetic field and a transmitter for transmitting a radiofrequency pulse. The antenna may be positioned proximate to the body to measure properties using nuclear magnetic resonant frequencies. The antenna may measure formation properties in a first volume of a formation using a first frequency. The antenna may measure drilling mud properties in a second volume in a borehole using a second frequency.

Speed Of Tool Assessment Via Speed Kernels

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US Patent:
20210270990, Sep 2, 2021
Filed:
Apr 12, 2019
Appl. No.:
16/638513
Inventors:
- Houston TX, US
Rebecca Jachmann - Spring TX, US
International Classification:
G01V 3/32
G01V 3/38
E21B 49/00
Abstract:
Echo signals are acquired from operation of a nuclear magnetic resonance logging (NMR) tool in a borehole. The acquired echo signals are processed with respect to an inversion of each matrix in a plurality of matrices, wherein each matrix in the plurality of matrices accounts for motion of the NMR tool at a respective rate of penetration (ROP) of the NMR tool in the borehole, to produce respective spectrum coefficients for each ROP. Each spectrum is processed with respect to the respective matrices in the plurality of matrices to produce a test echo signal for each ROP. The acquired echo signals and the test echo signal for each ROP are processed to produce an error for each ROP. The ROP for the minimum of the errors is identified as the ROP of the NMR tool.

Downhole Adaptive Data Compression And Formatting

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US Patent:
20210157026, May 27, 2021
Filed:
Nov 21, 2019
Appl. No.:
16/691066
Inventors:
- Houston TX, US
Rebecca Corina Jachmann - Spring TX, US
You Wang - Austin TX, US
Assignee:
Halliburton Energy Services, Inc. - Houston TX
International Classification:
G01V 3/32
G01V 3/34
G01V 3/38
Abstract:
Data is received downhole from a downhole logging tool to produce received data. The received data is processed to produce processed data. A binary formatting option is selected from a group of binary formatting options, wherein applying the selected binary formatting option to the processed data produces fewer bits than applying any other binary formatting option of the group of binary formatting options to the processed data. The selected binary formatting option is applied to the processed data to produce binary data. The binary data is transmitted uphole. The binary data is received uphole. The received binary data is decompressed to produce uncompressed data. The uncompressed data is processed uphole.

Pulse-Sequence Design To Reduce Motion Effects And Characterize Tool Motion During Logging

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US Patent:
20210062643, Mar 4, 2021
Filed:
Aug 30, 2019
Appl. No.:
16/557336
Inventors:
- Houston TX, US
Rebecca Corina Jachmann - Spring TX, US
Assignee:
Halliburton Energy Services, Inc. - Houston TX
International Classification:
E21B 47/12
G01V 3/38
G01V 3/32
G01V 3/34
Abstract:
A method may comprise disposing a nuclear magnetic resonance logging tool into a wellbore, identifying an upper limit of an amplitude for tool motion, identifying a frequency range based at least in part on the upper limit of the amplitude for tool motion, measuring the one or more frequencies from the echo train, and performing a frequency-domain processing of the one or more frequencies to suppress distortions in an echo train. A system may comprise a nuclear magnetic resonance logging tool and an information handling system. The nuclear magnetic resonance logging tool may further comprise an electromagnetic transmitter configured to emit a magnetic field, a radio frequency transmitter configured to transmit a pulse and one or more refocusing pulses, and a receiver configured to detect one or more frequencies from an echo train.

Circular Polarization Correction In Nuclear Magnetic Resonsance (Nmr) Logging

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US Patent:
20200319367, Oct 8, 2020
Filed:
Feb 19, 2020
Appl. No.:
16/795311
Inventors:
- Houston TX, US
Rebecca Corina Jachmann - Spring TX, US
International Classification:
G01V 3/32
G01N 24/08
E21B 47/00
G01R 33/38
G01R 33/36
Abstract:
A method for nuclear magnetic resonance (NMR) logging is disclosed that pulses, using a quadrature antenna of an NMR logging tool in a borehole, a circularly polarized (CP) signal into a formation surrounding the borehole. The method also pulses, using the quadrature antenna, a reverse circularly polarized (RCP) signal into the formation. A sensor of the NMR logging tool detects a first NMR signal from the formation in response to the RCP pulses and a second NMR signal from the formation in response to the CP pulses. A correct transverse magnetization value is then recovered based, at least in part, on the first NMR signal and the second NMR signal.

Borehole Signal Reduction For A Side-Looking Nmr Logging Tool Using A Magnet Assembly

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US Patent:
20200064285, Feb 27, 2020
Filed:
Oct 30, 2019
Appl. No.:
16/668771
Inventors:
- Houston TX, US
Rebecca Jachmann - Houston TX, US
Arcady Reiderman - Katy TX, US
International Classification:
G01N 24/08
G01R 33/38
G01V 3/32
Abstract:
A side-looking Nuclear Magnetic Resonance (“NMR”) logging tool is designed to reduce and/or eliminate a borehole signal. The logging tool includes a magnet assembly having at least two magnets with magnetizations in different directions, thus resulting in a net magnetization that reduces the borehole signal.

Frequency Weighting In Broadband Acoustic Beamforming

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US Patent:
20180355712, Dec 13, 2018
Filed:
Jul 12, 2016
Appl. No.:
15/781923
Inventors:
- Houston TX, US
Yi Yang Ang - Singapore, SG
Rebecca Corina Jachmann - Spring TX, US
Yinghui Lu - The Woodlands TX, US
Avinash Vinayak Taware - San Jose CA, US
International Classification:
E21B 47/10
G01V 1/40
Abstract:
Disclosed are systems and methods for processing broadband acoustic signals acquired by a plurality of acoustic sensors, using an array-signal-processing technique to compute fused-signal maps in the frequency domain for a plurality of frequency bins. In accordance with various embodiments, the fused-signal maps are combined across the frequency bins, with respective weightings that are based on eigenvalues of covariance matrices computed for the plurality of frequency bins. The combined maps can be used to locate an acoustic source in a wellbore.
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Rebecca C Jachmann from Spring, TX, age ~43 Get Report