... A carbon sequestration site has been developed onshore Abu Dhabi where, for the first time, CO2 injection occurs in a carbonate saline aquifer. The site currently has one well, fully equipped with fiber optic sensors, which can monitor passive and active seismic activity. The selected design...

... We show a practical and general approach to estimating the acoustic fluid properties required in 4D seismic applications involving complex fluid mixtures, such as the ones encountered during CO2 injection in depleted oil and gas reservoirs and saline aquifers for carbon sequestration (CS), H2...

... stratal cubes. Because seismic travel time is different for the injection layer, the object cubes of two data must be int-erpolated, and make them having the same samples. The th-ird step is amplitude matching processing. Using the top su-rface amplitude as a reference, the surface amplitude of twodata...

... and during a CO 2 injection experiment carried out at the Svelvik CO 2 Field Laboratory. We focus on VSP attributes typically employed for seismic characterization (e.g., arrival time shifts and amplitude decay of direct waves) as well as on wave types which are not commonly used (e.g., tube waves) but may...

... and gas production using horizontal wells, combined with strategic water injection, resulting in a substantial increase in recovery (21%). These findings contribute to establishing definitive guidelines and offer valuable insights for the understanding and optimizing oil rim reservoirs throughout...

... geologist nullspace climate change inversion innanen chemical flooding methods economic geology geometry fwi result injection sparse acquisition kimberly enhanced recovery geological subdiscipline shuttle nullspace shuttle geophysics acquisition geometry reservoir characterization co 2...

... a feasibility study of the SQUID-TEM survey for reservoir monitoring during CO2 sequestration in the Middle East test site. The SQUID-TEM measurements have been made before and after seawater/CO2 fluid injection into the subsurface reservoir. The goal was to produce 3D resistivity models around the injection...

... characterizing these formations for their storage and sealing capacity using geological and geophysical data. In addition, when hydrogen is injected into the formation, it is also necessary to combine time-lapse geophysical data with fluid-flow simulation, geomechanical modeling, and rockphysics into a joint...

... West Texas has been a seismically active region in the past decade due to the injection of industrial wastewater and hydrocarbon exploitation. The newly founded Texas seismological network has provided a catalog that characterizes the intense seismicity down to a magnitude of 1.5 Ml. However...

... In this work, we are interested in the capability of 4D seismic in helping the back allocation of injected fluid volumes which is a key information for an efficient reservoir management or for guarantying that the injected volumes are still in place in CCS contexts. We propose a workflow...

... Carbon Capture, Utilization, and Storage (CCUS) projects are crucial for mitigating greenhouse gas emissions and combating climate change. These projects involve the injection of captured CO 2 into subsurface geological formations for longterm storage, necessitating detailed knowledge...

... fracturing geology production logging upstream oil & gas complex reservoir production control reservoir geomechanics reservoir characterization geological subdiscipline estimation operation fracture energy 10 society injection reflectometry expanded abstract downhole sensor completion...

... multiple wells. In this study, we propose a machine learning implementation of this technique (well2seisML) to resolve these issues. The new solution is applied to CO 2 plume evolution during injection in the Sleipner field. This allows us to optimally integrate the data from injected volumes...

... of injection for 20 years and 100 years of monitoring. Economically, the project demonstrates favorable prospects, with an estimated cost of US$33 per tonne of CO 2 , considering carbon tax credits and existing infrastructure. The low-risk nature of the project and its potential for high-volume storage make...

... reservoir characterization formation applied geoscience broom creek formation united states government co 2 geological subdiscipline exploration geophysicist web-avo inversion shear compliance clastic rock rock type enhanced recovery inversion american association injection line 2 2D...

... In recent years our research group has observed quasi-transient changes in seismic transmission data associated with CO 2 injection (Innanen et al., 2019). Here, we present images generated through elastic full waveform inversion (EFWI) of rapid-repeat time-lapse vertical seismic profile (VSP...

... For seismic monitoring injected CO 2 during geologic CO 2 storage, it is useful to measure time-lapse (TL) variations of seismic impedance. Acoustic impedance (AI) and elastic impedance (EI) give direct connections to the mechanical and fluid-related properties of the CO 2 storage complex...

... Subsurface characterization is important in managing large volumes of wastewater injection but is often time consuming because of complex subsurface properties and intricate geological structures, particularly in carbonate systems. This study aimed to develop a practical statistical method...

... was able to capture the subtle changes in pressure caused by multiple water injections into the reservoir. The correlation between perturbations in travel-time and pressure was up to 0.997 (R 2 ) depending on the source-receiver pair. We used a granular contact model to show that these travel-time...

... Our working group has performed a set of experiments designed to evaluate the challenges facing deep disposal of fluids in the Midland Basin. These challenges include seismicity related to the injection process, and challenges in locating seismic events and characterizing them for causal...