Petrographic Services for the Petroleum Industry

Curriculum Vitae of Ryan McLin


New Mexico Institute of Mining and Technology, Socorro, NM
Master of Science in Geology 2007
Quantifying the influence of calcium carbonate accumulation on hydraulic properties of three semi arid soils: Socorro County, New Mexico.

New Mexico Institute of Mining and Technology, Socorro, NM
Bachelor of Science in Geology 2000
Environmental Geology Option

Oil and Gas Industry Experience

Petrologist/Owner, December 2013-Present
Key responsibility: Sole proprietor of McLin Petrographics, delivering quality time sensitive petrographic and petrologic analysis and interpretation to clients in the petroleum industry.
Key accomplishments: Continued characterization of conventional and unconventional reservoirs; delivered numerous datasets, proprietary client reports, and presentations, meeting client deadlines and quality expectations.

Senior Geologist, Petrology Manager; DRIFTS Product Champion - January 2012 – December 2013
Key responsibility: Management and technical leadership of a petrology team, technical marketing, and product development.

Key accomplishments: formation and promotion of the Houston-based petrology department, including hiring, purchasing equipment, and marketing services; training new hires in conventional and unconventional reservoir quality description and analysis, new petrology product development related to Digital Rocks; represented Schlumberger Reservoir Laboratory to Houston clients; co-responsible for the product development of Diffuse Reflective Infrared Fourier Transform Spectroscopy (DRIFTS), which is a laboratory-based remote sensing service designed to detect mineralogy and kerogen on core and cuttings material calibrated with Transmission Infrared Fourier Transform Spectroscopy.


Geologist/Petrologist - September 2005 - December 2011
Key responsibility: Provide detailed microtextural analysis of conventional and unconventional reservoirs to clients using thin sections, X-ray diffraction mineralogical data, scanning electron microscope, and core description.

Key accomplishments: Developed a specialization in microtextural analysis and characterization of hydrocarbon reservoirs including conventional and deepwater sandstones and carbonates, and unconventional shale-gas, and shale-oil reservoirs; developed and championed new technologies and service products that integrated with petrophysics, geomechanics, and routine and special core analysis to provide a decision justification tool for clients; led the development of broken and ion-milled sister sample SEM imaging as published in Milner et al., 2010 and Spain and McLin, 2013.

Environmental Industry Experience


Monitoring Specialist - August 2004 – May 2005

Key Responsibility: Implementing the monitoring of the Lower Rio Grande Salt Cedar Control Project in Socorro County. Duties included working with Socorro SWCD Cooperators that have signed up for the Lower Rio Grande Salt Cedar Control Project on monitoring the treatment sites after herbicide treatment. Maintain and submit proper documentation on all items monitored on the treatment sites.

This includes wildlife, water quality, vegetation, and soil health. More Specifically: 
Wildlife: Species Diversity; Species Density; Endangered Species.
Water Quality: Salinity; pH Levels; Shallow Groundwater Table Depth.
Vegetation: Natural Succession; Species Diversity; Species Density; Noxious Weed Inventory.
Soil Health: Soil Type ID; Soil Salinity; Soil Moisture; pH Levels; Erosion Hazard.

Research Assistant - March 2004 – July 2004
Co-responsible for sample preparation and analysis of approximately 700 drill core samples through X-ray diffraction to determine crystalline composition and properties.The samples were analyzed at the NMBGMR X-ray facility.


Soils Laboratory Technician - October 1999 – September 2000
Responsible for analyzing various soil and suspended sediment samples for particle size using standard and wet sieve analysis, concentration analysis, chloride analysis, bulk density, total carbonate analysis, and field sample collection.

Publications And Papers

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David R. Spain, Ryan McLin, 2013, SEM characterization of shale gas reservoirs using combined secondary and backscatter electron methods: An example from the Haynesville Shale, Texas and Louisiana, Texas and Louisiana, in W. Camp, E. Diaz, and B Wawak, eds., Electron Microscopy of shale hydrocarbon reservoirs: AAPG Memoir 102, P. 45-52

Core Truth in Formation Evaluation”. Mark A. Andersen, Brent Duncan, Ryan McLin, Schlumberger. Oilfield Review, Summer 2013:25, no. 2.

"1D and 2D NMR Core-Log Integration in Organic Shale". Phillip M. Singer, Erik Rylander, Tianmin Jiang, Ryan McLin, Richard E. Lewis, Schlumberger, Steven M. Sinclair, Matador Resources Company. This paper was prepared for presentation at the International Symposium of the Society of Core Annalists held in Napa Valley, California, USA, 16-19 September, 2013.

"NMR T2 Distributions in the Eagle Ford Shale: Reflections on Pore Size". Erik Rylander, Philip M. Singer, Tianmin Jiang, Rick Lewis, Ryan McLin, Schlumberger, Steve Sinclair, Matador Resources Company. This paper was prepared for presentation at the Unconventional Resources Conference-USA held in The Woodlands, Texas, USA, 10-12 April 2013, SPE 13URC-P-92-SPE

"Imaging Texture and Porosity in Mudstones and Shales: Comparison of Secondary and Ion-Milled Backscatter SEM Methods". M. Milner, R. McLin, J. Petriello. Canadian Unconventional Resources and International Petroleum Conference, Calgary, Alberta, Canada, 19-21 October, 2010. CSUG/SPE SPE-138975-PP.

Key Skills And Abilities

Technical: Petrologic investigation, analysis, and interpretation of conventional, hybrid, and unconventional siliciclastic, carbonate, and shale/fine-grained gas and liquids rich reservoirs; textural and compositional analysis and interpretation, including grain framework, matrix, and pore systems); sandstone point counting, including grain size and grain coat analysis and specialized methodologies (e.g. Touchstone); core logging, description, and interpretation (visual and CT images); scanning electron microscopy operation and interpretation; sample selection for petrographic and complementary data analysis; XRD, DRIFTS, XRF data interpretation and integration; interpretation and integration of geomechanical and routine and special core analyses in the context of petrologic textures in nano- to log-scale; development of petrographic work flows, including SEM-CL, broken and ion-milled sister sample imaging, and point counting and morphometric analysis of backscatter SEM images

Communication: Industry recognized and cited technical publications and presentations; technical marketing; company and client reports; documenting workflows and standard operating procedures; compilation and communication of work products (petrophysics, geochemistry, geomechanics, routine and special core analysis, and petrology) into a cohesive integrated reservoir quality analysis and interpretation

Leadership: Management and technical leadership of a petrology staff; project management; mentoring; designed and implemented training programs; product and workflow development and implementation; owner of a sole proprietorship

Example Software Competencies: Can easily adapt to any software platform for data visualization and reporting; Touchstone 7, Petrel (Basic), Techlog (Basic), PowerCore (Core Description Software), Microtrac Flex (Particle Size Measurement Software), Microsoft Office Suite, Adobe Photoshop CS6, Spot (Petrographic Photography Software), Zeiss Axio Vision (Petrographic Photography Software), JMicroVision Image Analysis Toolbox, Pointcounter

Professional Affiliations

AAPG Member 2008 – Present
Houston Geological Society Member 2011 – Present
Member Sigma Gamma Epsilon Honor Society