... Abstract In 2020, a depleted horizontal well in the black oil window of Eagle Ford shale was stimulated with a surfactant huff-n-puff treatment selected through laboratory screening on reservoir rock and fluid samples. After 17 hours of injection and one month of shut-in, the well increased...

... recovers energy by injecting cold water via fracture networks that can be either naturally occurring or artificially created. Therefore, by acting as the primary conduit for fluid flow and heat exchange, cracks and fractures play a crucial role in the extraction of geothermal energy. Hydraulic fracturing...

... trials have shown that injected surfactants can be an effective means of improving recovery. Most experiments, however, have been conducted at ambient rather than reservoir conditions. This study presents a novel approach to screen thermally stable surfactants at high pressures and high temperatures...

...) is a frequently implemented approach. However, a significant challenge encountered during the process of injecting Carbon Dioxide (CO 2 ) or Nitrogen (N 2 ) to displace oil is the occurrence of asphaltene precipitation and deposition, which can impede production. This work is an experimental study to examine...

... for disposing produced water and can result in increased earthquake activity. This can have a significant impact on the environment and add uncertainty to design and planning decisions. In this work, we designed a hybrid method to understand the relationship between saltwater injection in the Ellenburger...

..., this study addresses the effect of Sc-CO 2 injection in the Bakken Formation and evaluates the resulting geochemical processes and physical alterations. To this end, core samples were taken from the target formations, cleaned, characterized, and then saturated with brine. The core samples were exposed...

... reservoir fluids. Repeated THG observations over months and years will enable operators to observe the reservoir response to changes in production, injection and operating procedures. Results/Observations/Conclusions Years of observations of THG in heavy oil reservoirs demonstrate that THG...

... Abstract Hydraulic fracturing in unconventionals ascribes to "fractures should be perpendicular to the axis of least stress". First published in 1957 by, this theory stands the test of time. They determined this by injecting a plaster slurry into "ordinary gelatine" (homogeneous medium) under...

... Abstract Gas injection performance may vary significantly depending on the reservoir fluid, rock, and natural-fracture characteristics. Hence, well design and injection strategy optimization is essential to maximize the recovery. While the reliability of the optimization results is contingent...

... was built for a shale gas well in Weiyuan Field, the production history was matched, and the depletion production was predicted. Then, the CO 2 huff and puff scheme was optimized to maximize gas recovery, including CO 2 injection timing, injec-tion rate, injection time, soaking time, and production times...

... as through mineralization. Mineralization, favored in rocks rich in magnesium and iron (e.g., volcanic-rich rocks), is considered to be the most stable form of CO 2 trapping, as injected carbon dioxide is converted to carbonate minerals in situ . The success of IOR technologies and CO 2 trapping via...

... reservoir completion, primary depletion and enhanced oil recovery modeling and 2) retain the injection mechanism and simplify the complex fracture characterization to enhance the computation efficiency. This newly developed advanced dual porosity dual permeability (A-DPDK) model transfers the complex...

... reservoir characterization urtec information signature injection university reservoir geomechanics shear deformation fiber optic strain response orientation geologist complex reservoir geological subdiscipline magnitude seismicity research group catalogue modeling URTeC: 3852059 Modeling...

... Abstract To safely sequester carbon dioxide (CO 2 ) in the subsurface, it is vital to maintain the injection pressure below formation breakdown pressure, which is dominantly governed by lithology, principal stresses, and presence of natural fractures. This prevents the creation of injection...

... into the depleted formation in Avalon shale. A pilot project was executed, determining the injectivity of the well, allocation method verification and operability. A dual-tank model was built with a stimulated reservoir volume (SRV) and matrix volume based on rate transient analysis (RTA). The transmissibility...

... and rock minerals. We conducted reactive transport simulations of the Wallula pilot-scale CO 2 injection into the flow tops of the Grande Ronde Basalt using our Pacific Northwest National Laboratory STOMP-CO2 simulator with the ECKEChem reactive module. Our mineralization simulation of the ∼1,000 tons...

... Abstract The utilization of CO 2 as an injection agent to enhance shale oil recovery has garnered significant attention. Nonetheless, the introduction of CO 2 results in complex phase behavior and flow mechanisms of formation fluids. Thus, a comprehensive framework consisting of theoretical...

... Abstract Injecting CO 2 into coal seams can be an important strategy for reducing carbon emissions. Although CO 2 has a strong affinity for coal through the sorption mechanism, resulting potentially in securing long-term carbon storage, it also causes severe coal matrix swelling (along...

... temperature profile complex reservoir infill well temperature response simulated downhole temperature profile injection URTeC: 3721052 Simulation of Downhole Temperature Distribution in Fractured Shale Gas Wells by Incorporating Geomechanics and Apparent Permeability Modeling Chuanyao Zhong...

... Abstract Many previous studies have highlighted the effect of injected fluid salinity on recovery performance and flowback analysis in tight reservoirs. However, the complex interactions between the oil, original formation water, fracturing fluid, and rocks make capturing all the relevant...