Who we are

T.D.DemchukThomas D. Demchuk established his geological technology consulting practice with the formation of TDDemchuk CONSULTING, LLC in 2015. With over 23 years in the energy industry working in biostratigraphy and organic petrography, his specific fields of experience include palynology and integrated micropaleontological interpretations, and characterization of organic matter in source rocks and unconventional resources. He has held positions of principal responsibility in biostratigraphic program development and management, interpretation and integration of varied micropaleontological data, and the formation and successful execution of an organic petrography technical service program.

Thomas’ palynological expertise includes microscopy and the generation of new data, the development and management of biostratigraphic programs for wellsite and post-well exploration activities, the interpretation of new and archived micropaleontological data and integration with other diverse stratigraphic and exploration data, the creation of high-quality robust chronostratigraphic frameworks, paleoenvironmental interpretations, and the management and oversight of corporate biostratigraphic databases. During his time in industry he was also charged with the oversight of internal and external (JIP) biostratigraphy research programs of benefit to the company.

Organic petrography experience consists of the initiation and execution of an in-house program including promotion and understanding of the science among the business units, microscopic investigations and generation of new maceral and associated mineral data, and integration of the subsequent interpretations with organic/inorganic geochemical data as well as other stratigraphic data. The associated programs primarily investigate unconventional resource plays characterizing the organic matter for a greater understanding of quantity and quality, integration with organic geochemical data to address hydrocarbon risk parameters, and subsequent contributions to resource assessment. Investigations also encompass the characterization of diverse source rocks, and maturation assessment including vitrinite reflectance and spectral fluorescence for basin modeling inputs.

Thomas began his career as a Biostratigrapher with Amoco Corp. in 1992 where he worked for over four years generating new palynological data for exploration plays, and integrating these data with other diverse micropaleontological interpretations to create chronostratigraphic frameworks using graphic correlation and other data interrogation techniques. In 1997 he moved to Conoco Inc., which later became ConocoPhillips in 2001. At ConocoPhillips he was a Stratigraphic Coordinator later becoming a Principal Stratigrapher, developing and managing outsourced biostratigraphic programs for exploration programs, and subsequently interpreting the data and integrating the eventual results with the exploration teams. In 2013 he was charged with creating, building and promoting the very successful in-house organic petrography program that continues to benefit the company.

As part of his networking and volunteer duties, Thomas has been very involved over the past few decades with AASP-The Palynological Society. He was a Director-at-Large from 1994-1996, then later became Secretary-Treasurer in 1998, a position he held until the fall of 2015. He continues his dedication to the Society as (incoming) Chair of the AASP Foundation, being a member of Editorial Board for their flagship journal Palynology, and being on the Organizing Committees for several past and upcoming AASP annual meetings (San Antonio 2001, Mendoza 2015, Houston 2016, Calgary 2018).

Along with his involvement in AASP, Thomas has conducted official duties for The Society for Organic Petrography (various TSOP committees), the Coal Division of the Geological Society of America (Secretary: 1996-2006) and the Canadian Society of Petroleum Geologists (Paleontological Division Chair: 1990-1991). He has acted as a reviewer for numerous manuscripts that have been published in world-class geological journals, and has been Guest Editor of multiple special scientific publications. Thomas has been very involved in other Houston-based micropaleontological activities, taking over as General Chair for the successful Geological Problem Solving with Microfossils Conferences in 2005, and being Chief Editor for the subsequent proceedings volume. He was also Chief Guest Editor for a similar proceedings volume from the 2013 conference.

He is the Chief Organizer of the Pollen and Spore Master Class which has been held twice in Utrecht, The Netherlands (2010, 2013). In conjunction with other world class palynologists this Class teaches various aspects of Phanerozoic terrestrial palynology. Over the years Thomas has participated in numerous training opportunities, particularly those dealing with palynology including dinoflagellates, paleoclimate, and paleoceanography, as well as other training in organic geochemistry, sequence stratigraphy, seismic facies, and varied software.

thomas with earth moverThomas has a B.Sc. and M.Sc. from the University of Alberta in Edmonton, Canada. He earned his Ph.D. from The University of Calgary in 1992.

TDDemchuk Curriculum Vitae