... characterization thermal maturity asphaltene compound improved oil saturation recovery complex reservoir geological subdiscipline unconventional resource technology conference producible hydrocarbon evaluation niobrara biogeochemistry kerogen alteration carbon isotope donohue URTeC: 3860229...

... that consume hydrogen, generate undesired gases, and alter pore structures of wellbores. Here, we present observations of biogeochemical alteration of wellbore cement after interactions with H 2 . Experiments were conducted with a wellbore cement core and shale submerged in synthetic formation brine...

... exposure. Results showed significant alteration in microstructure at the surface in contact with the CO 2 . Carbonates were dramatically altered and wholly removed in some areas. Iron sulfide was observed to be altered with some areas appearing to form a layer of iron oxide where the iron sulfide...

... Abstract Carbon sequestration is one of the approaches to achieve carbon dioxide reduction in the atmosphere. Underground storage of CO 2 requires an understanding of geochemical and geomechanical alteration on the integrity of the injection wellbore. In this study, we investigate...

... minerals. Tuning of the water salinity has shown positive results to reduce swelling, but problems persist due to alteration in the wettability of the pore system. Proper choices of friction reducers and surfactants have shown remarkable differences in Interfacial Tension Tests (IFT) reduction, and rock...

... Abstract During hydraulic fracturing of unconventional reservoirs, injected fluids and proppants induce a series of chemo-mechanical alterations that impact fluid flow. There is a wide range of alteration types from geochemical reactions to proppant emplacement, which requires understanding how...

... URTeC: 2559 CO2-Fracturing Fluid Driven Geochemical Alterations at the Shale Matrix-Fracture Interface Sean Sanguinito*,1,2, Patricia Cvetic1,2, Barbara Kutchko1, Sittichai Natesakhawat1,2, Angela Goodman1, 1. United States Department of Energy, National Energy Technology Laboratory, P.O. Box...

... popular in the recent decade. Mechanisms of the improved productions are either Interfacial Tension (IFT) reduction or Wettability (WTB) Alteration. While surfactant based shale oil EOR has been proven to be an effective approach by several scholars, the dominating mechanism is still vague and needing...

... systems were tested in this work consisting of one case of water without surfactant component as the base case and three cases with different surfactants. Reduction of IFT, alteration of wettability to water-wet region, and stable zeta potential were observed for the three surfactants tested. Adsorption...

... seismic amplitude Artificial Intelligence seismic data Upstream Oil & Gas alteration repeat survey information fracture network monitor case Reservoir Characterization modeling Efficiency production begin bubblepoint pressure fracture shear modulus seismic survey production...

... that maybe integrated into geophysical data sets to interpret stratigraphic boundaries and changes in basin architecture over geological time. Reservoir Characterization Upstream Oil & Gas organic matter Duvernay Formation structural geology alteration kerogen type complex reservoir western...