David Jacobi Email & Phone Number

Responsibilities:• Working with unconventional operations teams in Saudi Arabia to develop new innovative technologies and applications characterizing the hydrocarbon potential of source rock reservoirs using integrated organic and inorganic geochemical methods. • Development of organic and inorganic geochemical analysis laboratory including pyrolysis, gas chromatography (GC) and gas chromatography mass spectroscopy, and gas chromatography isotope ratio mass spectroscopy (GCIRMS) to analyze molecular, biomarker and compound specific isotope geochemistry. •Charter member of the Carbon Capture Underground Treatment and Storage Team (CCUTS) - responsible for developing innovative methods for sequestering CO2 in the subsurface via source rocks and saline aquifers and also working on sustainability measures related to alternative energy sources. Related Accomplishments: •Developed a model for predicting maturity, API, hydrocarbons in place, gas-oil ratio and bubble point pressure using the integration of pyrolysis with X-ray diffraction data for source rock reservoirs. Operations utilized the model for calibrating basin model and for exploration of prospects. •Developed gas isotope fractionation model utilizing Rayleigh fractionation and thermal cracking theory to obtain 13C of methane, ethane, propane and butane computed using hydrogen index from pyrolysis. •Co-invented a method to use waste, green tea, to develop hierarchical carbon substrates as a substitute for kerogen in source rocks. Developed a heating protocol constrained by elemental, molecular chemistry and thermal gravimetric analysis to roast tea to obtain carbon that was comparable to the chemical properties of kerogen from the immature to gas maturity window. This was implemented to better understand CO2 gas adsorption according to the changing chemistry and surface area. Results where presented to the American Chemical Society conference 2023.

Responsibilities:• To employ organic and inorganic geochemistry methods to characterize the maturity and hydrocarbon potential of unconventional and some conventional reservoirs. • To work collaboratively with operations on basin scale characterization projects using pyrolysis data, oil chemistry, biomarkers, gas isotope data and other ancillary geochemical methods for both North America and other international plays.Accomplishments:• Conducted a regional basin scale geochemical characterization of the Wolfcamp for the Permian-Midland and the Delaware basin using a combination of pyrolysis data and biomarkers derived from analysis of archived cuttings and core. • Developed method using gas composition and measured Btu’s from producing wells in the Mancos of the San Juan basin to predict maturity to help refine basin models where maturity data was sparse. • Developed Fe-C-S redox couple for establishing variations in anoxia using the mineralogy of source rock intervals for the purpose of mapping facies changes in the Eagle Ford and Wolfcamp for exploration purposes.• Conducted geochemical characterization and evaluation of the Woodford in the Anadarko Basin to determine the cause for differences between the properties of produced fluids compared to maturities of the source rock. • Utilized biomarkers and isotope geochemistry to show production from the Niobrara in the DJ Basin, was restricted to certain organofacies within the projected stimulated rock volumes. Work was used to develop algorithm for determining production allocation for this play.• Explored Solid State Nuclear Magnetic Resonance (SSNMR) for characterizing the chemical properties of kerogen and bitumen from source rocks in collaboration with Dr. Jeffrey White and Dr. Andrew Clough of Oklahoma State University. Scope of project involved measuring changing chemical moieties of kerogen correlated to the changing surface area as measured by BET.

Responsibilities:• Direct and initiate research in petroleum geochemistry in unconventional source rock reservoirs and hybrid plays with other scientists, and to work with operations geologist and petrophysicists to characterize their maturity and fluid properties to determine their hydrocarbon generation potential. Accomplishments:• Developed and equipped a Petroleum Geochemistry Lab with High Performance Liquid Chromatography, Gas Chromatography, and Gas Chromatography Mass Spectroscopy. Worked with technicians and other chemist toward bringing it to operational status. • Applied the principles of polymer chemistry and conducted experiments to study the interaction of kerogen with solvents to determine the degree of swelling that can occur as a function of the changing maturity. The work revealed the use of organic solvents could influence the intra-kerogen pore network in source rocks because of the polymer properties of kerogen • Initiated the use of Solid State Nuclear Magnetic Resonance “Magic Angle Spinning” techniques from collaboration with Oklahoma State University to study kerogen molecular composition with changing maturity. • Completed geochemical characterizations and evaluations for projects covering the following plays: Avalon, Bone Springs, Barnett, Wolfcamp, Eagle Ford, Marcellus, Haynesville, Woodford, Niobrara, Utica (Point Pleasant) and Mississippi Lime • Completed regional study of produced hydrocarbons from Mississippi Lime in the Anadarko basin to determine the cause for variations in oil densities. Used a combination of biomarkers and GC chemistry to show some of the low fluid densities were not due to maturity or biogenic alteration, but rather evaporative fractionation was responsible for the lower densities measured from the produced fluids.

Responsibilities: • 2005-2010: Team scientist responsible for aiding in the development of a new pulsed neutron geochemical down-hole tool called Formation Lithology Explorer or (FLEX). The work involved calibration and refinement of tool response. Also developing geochemical relationships and algorithms to identify lithologies and quantify mineralogies of both conventional and unconventional reservoirs using inelastic and capture elemental spectra.• 2007-2010: Team leader and member of a research group to develop integrated petrophysical unconventional reservoir characterization models. The approach was to use a combination of geochemical, petrophysical and geomechanical data to develop algorithms to identify lithofacies, compute organic content, estimate gas saturations, and identify potential frac targets based on their computed minimum and maximum horizontal stress. Accomplishments:• Co-inventor with another colleague of an expert system of logic designed to identify and quantify the probable mineralogy and lithologies of subsurface formations given inputs of elemental compositions.• Co-inventor of an algorithm designed to delineate between lithofacies in source rocks and select favorable frac targets based on the computed minimum horizontal stress using the integration of geochemical, neutron-density and nuclear magnetic resonance and acoustic data.• Worked with applied mathematicians and physicist in developing pore scale models of sandstones and limestones for the purpose of predicting log resistivity and NMR responses.

• Conducting passive and active (hybrid source) magneto-telluric surveys of aquifer systems across the U.S. Responsible for evaluating and interpreting resistivity data to determine the lateral extent of porous zones, as well as identifying possible barriers to transmissivity, and the thickness of saturated zones in aquifer systems. Projects resulted in creation of 2D resistivity cross sections and in some instances 3-dimensional subsurface maps. Data was used to supply information about optimal drilling sites for conducting environmental assessments, enhancing municipal water supplies, and improving agriculture irrigation activities. Some of the work also involved surveying and prospecting for hydrocarbons in shallow carbonate shoal deposits and bioherms as well as coal bed methane prospects.

Pittsburgh, Pa, Us

Ensuring, environmental compliance of a large super-alloy-gas turbine, casting plant with compliance to Resource Conservation Recovery Act (RCRA), Clean Air Act (CAA) Clean Water Act (CWA) and CERCLA. •Implemented and designed pollution prevention plan in compliance with NPDES permit and RCRA regulations. •Worked with facility engineering in waste reduction by aiding in development of bag-house collection system that recovered nickel-rich particulate which was recycled at a profit of ~$100,000.00/year •Reengineered and increased the efficiency of waste water treatment system used for removing suspended solids and nickel particulate by using a combination of anionic polymers and aluminum sulfate.Implemented electrochemistry for removing silver from waste water stream complexed as a thiosulfate using a series of electrolytic units coupled with mesh copper screens to reduce metal concentrations . This was to reach compliance with POTW requirements.