Antony Marsh

Antony Marsh


  • The University of Western Australia (M004), 35 Stirling Highway,

    6009 Perth


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Personal profile

Previous positions

Chevron Australia


Senior Geophysicist - Applied Exploration Technology (AET), Chevron Australian Business Unit (ABU)

Nov 2013 - Nov 2020 7 years 1 month Perth, Australia

• Co-developer of Regional Stratal Slice Volume (RSSV) technology within Chevron ABU used to evaluate key reservoir intervals in the North Carnarvon Basin (NCB)
• Evaluation and deployment of PaleoScan for regional stratigraphic imaging in North Carnarvon Basin for Jurassic/Cretaceous and Triassic intervals in ABU
• Evaluation and application of machine Learning in seismic interpretation automation in ABU

Exploration, New Venture, and Regional Work:
• Leveraging RSSV technology, worked collaboratively with other AET geoscientists to build prospect portfolio in Chevron, competitor, and open acreage used to influence ABU gazettal bid decisions and new venture activities.
• RSSV data sets were used in exploration & new ventures work, used to build channel belt analog databases by Chevron reservoir services team, to guide depositional facies for static reservoir models in field appraisal teams, de-risk exploration play elements for CRS maps.
• Worked on team building of Common Risk Segment (CRS) maps for the NCB.
• Managed NCB seismic interpretation used for building and updating RSSV data sets.
• Regularly presented in exploration permit TCMs and exploration workshops with JV partners highlighting AET regional products such as RSSV imaging work and new play evaluations.
• Authored and presented numerous technical papers at Chevron internal technical forums at ABU and corporate levels.

Lead Geoscientist - ABU Shelf Exploration Team

Jul 2012 - Nov 2013 1 year 5 months Western Australia, Australia

Project Management:
• Managed and QC’d internal Chevron seismic reprocessing, velocity model building and key offset well petrophysical work
• Mentored junior earth scientist assigned to team

Lead and Prospect Generation Work
• Led permit exploration review and lead & prospect identification, quantification, and risking
• Worked with Chevron drilling department on all aspects of well planning including costs, pore pressure, logging programs, and site survey design
• Took drilling prospects through the Chevron pre-drill assessment process presenting prospects to the corporate exploration review.

Senior Volume Interpretation Specialist - Regional Exploration Team

Jan 2009 - Jul 2012 3 years 7 months Western Australia, Australia

• Field scale structural interpretation, DHI imaging, and reservoir geobody analysis of Gorgon field area used in populating and building first full field static model of Gorgon
• Worked closely with regional geologist and biostratigraphers to produce a regional stratigraphic framework integrating seismic with available well control
• Worked on team producing Common Risk Segment maps, regional velocity and basin models which were used in basin screening and Chevron basin exploration strategy
• Update of the Triassic exploration portfolio and new play identification in Mungaroo and Jurassic intervals leading to several new exploration discoveries
• Led team that produced basin-scale horizon interpretations across the North Carnarvon Basin from sea-floor through main reservoir zones
• Seismic interpretation mentoring of new hire and early career geoscientists to Chevron
• Stratigraphic imaging presentations at ABU and corporate technical forums




US Technical Director - Presales Team

Apr 2007 - Dec 2008 1 year 9 months Houston, Texas Area

• Participated in corporate turnkey software evaluations at several US Oil and Gas majors, including benchmark testing and software evaluations/demonstrations
• Managed onsite technical support with a US mid-cap oil and gas company - creating customised software workflows for subsurface seismic interpretation
• Technical presentations at AAPG, and several other US-based conferences wrote several short articles in US oil and gas journals
• Managed and mentored technical consultants for Paradigm's US presales group

Product Manager - Interpretation

2004 - 2007 3 years Houston, Texas, United States

• Managed and QC'd user interface design for software development and worked with software testing team for eventual worldwide software roll-out and deployment
• Worked collaboratively with 3D Canvas project manager and R&D groups in designing and implementing the O&G industries first integrated comercial 2D-3D interpretation and 3D visualisation platform
• Development strategies and marketing activities for VoxelGeo and SeisEarth seismic interpretation platforms
• Coordinated client software user requirements with development teams in Houston and Israel

Volume Visualization Team Lead Asia Pacific

2000 - 2004 4 years Perth, Western Australia, Australia

• Extensive prospect generation and evaluation work on the Indian sub-continent including project work with Cairn Energy, Reliance Oil and Gas, and various ONGC offices
• Technical presentations at industry conferences (IPA Jakarta and AAPG Bali) and industry seminars on volume visualisation and interpretation methodologies
• Mentored junior geoscientists in use of volume visualisation techniques and workflows
• Conducted industry software training courses in VoxleGeo at various locations
• Onsite customer support and mentoring/training (Japan, India, Indonesia, Australia

Regional Geoscientist

1998 - 2000 2 years Jakarta, Indonesia

• Involved along with the Country Manager in establishing a new Paradigm office in Indonesia
• Managed customer support relationships, providing onsite support/mentoring/training for VoxelGeo and Geosec software.
• Conducted presentations in various industry events (e.g. Indonesian Petroleum Association and International AAPG conferences) and industry seminars on volume visualisation and interpretation methodologies.

Geoscientist - Visualisation and Structural Geology Support

Jun 1993 - 1998 5 years Singapore, Singapore

• Launched VoxelGeo volume visualisation and interpretation product line in Asia Pacific Region
• VoxelGeo customer presentations, training, and onsite support
• 2D cross section balancing/restoration and 3D structural model building support and consulting services (GeoSec2D/3D)

Geoscientist - Structural Geology Support

May 1991 - May 1993 2 years 1 month Houston, Texas, United States

• 2D cross section restoration and balancing training, onsite consulting, and customer support.
• Consulting work in extensional (Thailand, Indonesia), salt (GOM), and thrust tectonic environments (PNG, USA)


An experienced exploration geophysicist with a background in development and deployment of new technology with a focus on delivering high quality results. International experience in lead and prospect identification in diverse geological settings as well as a sound understanding of basin scale risk analysis processes. Additionally, I have project planning experience in broad basin-scale interpretation initiatives as well as software development and implementation experience. Passionate about applying new technologies such as machine learning to active project work and have a strong interest in increasing organisational capabilities through mentoring and collaboration.

Education/Academic qualification

Geology, Master of Science, University of Texas at San Antonio

Award Date: 25 May 1993


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