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This profile was last updated on 8/16/14  and contains information from public web pages and contributions from the ZoomInfo community.

Dr. John C. Sherwood

Wrong Dr. John C. Sherwood?

Vice President of Research

Phone: +44 **** ******  HQ Phone
Geophysical Development Corporation
1 Grosvenor Court Hipley Street
Old Woking, Surrey GU22 9LL
United Kingdom

Company Description: During the past 25 years, GDC has grown into a leading provider of global solutions in Seismic Data Processing and Exploration Services. Renowned for its pioneering...   more
Background

Employment History

Board Memberships and Affiliations

Education

  • Physics
    Imperial College , London
  • Ph.D. , Acoustics
12 Total References
Web References
Geophysicists - John W. C. Sherwood
virtualmuseum.seg.org, 16 Aug 2014 [cached]
John W. C. Sherwood
A simple axiom "A geophysical success is accurate estimation of the earth model for recorded data" has been the motivating force for John Sherwood's career these last 40 years. How successful have John's contributions been? Today's younger geophysicists would find it difficult to imagine the range of influence that John's work has had on the direction that exploration geophysics has taken. In this regard, the SEG honors John Sherwood with Honorary Membership for his "insights that transposed complicated wave propagation problems into simplified concepts ... (and) being a leading contributor in the field of seismic modeling and imaging. It seems appropriate that John's early work at Imperial College in the mid1950s centered on one of geophysics' more difficult problems, the definition of the near-surface using both physical and theoretical models. After Imperial College, it was two years with the National Research Council of Canada, before John joined forces with the California Research Corporation (Chevron). In the 1960s, at Chevron Research, John developed the analog model for dereverberating the early marine records from the Gulf of Mexico with a spectrum-balancing technique referred to as the CAL Filter. With the computer still in its infancy, John's work on the Seismoline, a tool for both forward and inverse analog modeling of the earth, satisfied Chevron's dream of having "instantaneous" synthetic seismograms. Closely tied to this work were John's contributions to minimum-phase propagation effects and the lucid explanation of the proper sampling technique of the density and velocity logs. Moving from 1-D to 2-D, John still gets a twinkle in his eye when he recalls the results from his digital migration algorithms in the mid-1960s, from the unraveling of the seismic bowties from the San Joaquin Valley to the collapsing of the shallow North Sea fault diffractions. Or, was the twinkle related to his migration patent that ended up in the U.S. Supreme Court? In the early 1970s, John became director of research at Digicon and shortly produced prestack time and depth migrations which led to another significant geophysical contribution, "partial migration before stack," which John named "Devilish," a method we commonly call DMO and MZO. For such a "devilishly" clever idea, the SEG honored John with the Virgil Kauffman Gold Medal in 1986. In 1981, John cofounded Geophysical Development Corporation where he is vice-president of research. During his tenure at GDC, John has continued his efforts to better define the earth model. The SEG again recognized the importance of his work in 1989, when he was asked to be a Distinguished Lecturer. John spoke on the state of the art in seismic depthing and included examples of his robust linearized inversion (RLI) of a depth velocity model from seismic data, a procedure that he recognizes as his major achievement for defining the earth model. In fact, a few years ago, John astonished his colleagues when the RLI technique dramatically demonstrated the field surveying accuracy requirements necessary for seismic depth conversion. The contributions to the SEG and the field of geophysics continue to be an active part of John's life, from reviewing manuscripts, acting as associate editor, speaking at geophysical meetings, to overseeing PhD dissertations. This fervor carries over to John's personal life with stock and business ventures and a museum-quality collection of African art. Step-by-step with John is his dynamic wife, Edith, a biomedical scientist and amateur horticulturist. Of course, the Sherwoods' pride and joy are their three children, who are distinguishing themselves in the fields of medicine and computer science. Few individuals have contributed and distributed as significantly as John has to the SEG. I am proud to summarize a few of John's scientific accomplishments and to be part of this event, as the SEG bestows Honorary Membership on John W. C. Sherwood.
Applied Geophysical Services
www.appliedgeo.com, 22 Aug 2009 [cached]
John W. C. Sherwood
President of Applied Geophysical Services. Prior to joining AGS, Dr. Sherwood co-founded Geophysical Development Corporation's where he held the position of VP of Research for seventeen years and led development work on prestack migration, DMO, tomography, AVO, FX-Decon, and anisotropy. Dr. Sherwood was also Vice-President of Research at Digicon Geophysical Corporation where he made significant contributions to DISCO, the industry leading seismic computing system. Dr. Sherwood began his career in geophysics as a researcher at California Research Corporation (Chevron) where he was granted the patent for Chevron's first digital migration. He has served as an Associate Editor for Geophysics on several occasions including Associate Editor for Tomography and Seismic Wave Propagation. He is an Honorary Member of the Geophysical Society of Houston and the SEG and received the prestigious Virgil Kauffman Gold Medal Award for his pioneering work in dip moveout and migration. Dr. Sherwood holds a B.Sc. A.R.C.S., D.I.C. and Ph. D. from Imperial College of London and was a Fellow of the National Research Council of Canada.
Candidates for 2010/2011 - 3-Mar-10: Candidates for Office Election of GSH Officers article: contact Lilly Hargrave
www.gshtx.org, 3 Mar 2010 [cached]
In 1981, John Sherwood, Reg Neale and he founded Geophysical Development Corporation (GDC) where he was VP of Development.
Biography for John W. C. Sherwood
museum.seg.org, 30 April 2001 [cached]
John W. C. Sherwood
A simple axiom-"A geophysical success is accurate estimation of the earth model for recorded data"-has been the motivating force for John Sherwood's career these last 40 years.How successful have John's contributions been?Today's younger geophysicists would find it difficult to imagine the range of influence that John's work has had on the direction that exploration geophysics has taken.In this regard, the SEG honors John Sherwood with Honorary Membership for his "insights that transposed complicated wave propagation problems into simplified concepts ... (and) being a leading contributor in the field of seismic modeling and imaging. It seems appropriate that John's early work at Imperial College in the mid1950s centered on one of geophysics' more difficult problems, the definition of the near-surface using both physical and theoretical models.After Imperial College, it was two years with the National Research Council of Canada, before John joined forces with the California Research Corporation (Chevron). In the 1960s, at Chevron Research, John developed the analog model for dereverberating the early marine records from the Gulf of Mexico with a spectrum-balancing technique referred to as the CAL Filter.With the computer still in its infancy, John's work on the Seismoline, a tool for both forward and inverse analog modeling of the earth, satisfied Chevron's dream of having "instantaneous" synthetic seismograms.Closely tied to this work were John's contributions to minimum-phase propagation effects and the lucid explanation of the proper sampling technique of the density and velocity logs. Moving from 1-D to 2-D, John still gets a twinkle in his eye when he recalls the results from his digital migration algorithms in the mid-1960s, from the unraveling of the seismic bowties from the San Joaquin Valley to the collapsing of the shallow North Sea fault diffractions.Or, was the twinkle related to his migration patent that ended up in the U.S. Supreme Court? In the early 1970s, John became director of research at Digicon and shortly produced prestack time and depth migrations which led to another significant geophysical contribution, "partial migration before stack," which John named "Devilish," a method we commonly call DMO and MZO.For such a "devilishly" clever idea, the SEG honored John with the Virgil Kauffman Gold Medal in 1986. In 1981, John cofounded Geophysical Development Corporation where he is vice-president of research.During his tenure at GDC, John has continued his efforts to better define the earth model.The SEG again recognized the importance of his work in 1989, when he was asked to be a Distinguished Lecturer.John spoke on the state of the art in seismic depthing and included examples of his robust linearized inversion (RLI) of a depth velocity model from seismic data, a procedure that he recognizes as his major achievement for defining the earth model.In fact, a few years ago, John astonished his colleagues when the RLI technique dramatically demonstrated the field surveying accuracy requirements necessary for seismic depth conversion. The contributions to the SEG and the field of geophysics continue to be an active part of John's life, from reviewing manuscripts, acting as associate editor, speaking at geophysical meetings, to overseeing PhD dissertations.This fervor carries over to John's personal life with stock and business ventures and a museum-quality collection of African art.Step-by-step with John is his dynamic wife, Edith, a biomedical scientist and amateur horticulturist.Of course, the Sherwoods' pride and joy are their three children, who are distinguishing themselves in the fields of medicine and computer science. Few individuals have contributed and distributed as significantly as John has to the SEG.I am proud to summarize a few of John's scientific accomplishments and to be part of this event, as the SEG bestows Honorary Membership on John W. C. Sherwood.
Geophysicists - Fred J. Hilterman
virtualmuseum.seg.org, 16 Aug 2014 [cached]
John W. C. Sherwood
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