... that achieves high prediction accuracy, efficiency, and scalability compared to existing CNN-based and FNO approaches. Two dynamic surrogate models, predicting CO 2 saturation and pressure, were trained on 820 high-resolution samples from coupled flow-geomechanics simulations. The dataset integrates...

... Abstract CO 2 injection and sequestration in hydraulically fractured reservoirs is a complex process due to the intricate fracture network and various multiscale transport and surface mechanisms. Adsorption and molecular diffusion significantly enhance CO 2 injection and sequestration...

... Abstract Subsurface CO 2 sequestration is a promising method to advance carbon neutrality and support the shift toward sustainable energy. However, the unique behavior of CO 2 in these operations, particularly for cold CO 2 injection in depleted hydrocarbon reservoirs, poses challenges...

... Abstract This study presents a novel framework for simulating compositional two-component, two-phase CO 2 sequestration models by integrating the Enriched Galerkin (EG) discretization scheme with a phase-field formulation. Traditional equation of state (EoS) compositional models often face...

... Abstract In this work, we present a thermal-compositional simulation framework for modelling of CO 2 sequestration in de- pleted hydrocarbon reservoirs. The parametrization technique utilizes thermodynamic state-dependent operators expressing the governing equations for the thermal...

... Abstract We have advanced numerical simulation of CO 2 sequestration in subsurface aquifers by incorporating various non-isothermal effects in the mass and heat transport. The 11th SPE Comparative Solution Project in the field scale is selected as an example in this work. We formulate...

... Summary This paper presents a carbon dioxide (CO 2 ) storage application of a data-driven approach in forecasting reservoir performance (via the prediction of state variables and well outputs) of a compositional fluid system and multi-objective optimization under geological uncertainty using...

... Abstract Significant volumes of light oil are stranded in tight, thin and transition zone carbonate reservoirs. Waterflooding in these fields is not feasible due to poor water injectivity, and hence lack of pressure support required for commercial production. Continuous gas/CO 2 injection (CGI...

... Abstract The SPE11 comparative solution project presents a benchmark for geological carbon storage in an aquifer, as the development of sufficiently accurate CO 2 sequestration models is critical for predicting the distribution of CO 2 during and after injection. In this paper we present...

... Abstract Our objective is to seek optimal well placement design for maximizing immobile CO 2 storage capacity within an operating oilfield given a set of realistic input constraints consisting of well placement geometry as well as output constraints consisting of the CO 2 production rate...

... production monitoring simulator glm linear model reduction cost function selection time-step cut time-step and cumulative number time-step length injection reservoir simulator nonlinear iteration co 2 time-step selection link function gas injection Introduction (1) δ t c...

... geological CO 2 storage (GCS) projects, especially in reservoirs with abundant fractures and faults. The induced slip and reactivation of faults in fractured reservoirs can create significant leakage pathways. Therefore, investigating the geomechanical response on faults through hydromechanical...

... made in Gmsh, as just described. grid modeling & simulation fluid dynamics reservoir simulation resolution interface geology flow in porous media cartesian grid discretization scheme geologist subsurface storage co 2 discretization geometry cut-cell grid pebi grid...

... to the consideration of CO 2 dissolution in oil, the conventional B-L equation is modified to a concentration balance equation, without the effects of phase compressibility and gravity segregation. Then the front velocity of CO 2 can be expressed in fractional flow: At the core of PINNs is the idea of embedding...

... The pressure and temperature conditions for CCS in depleted oil and gas reservoirs can be close to the saturation and critical conditions of CO 2 . This gives rise to numerical complexities in reservoir simulation as pure or low-impurity CO 2 is a narrow boiling fluid that is known to yield...

..., utilization, and storage (CCUS) scenarios, it is essential to account for the dissolution of CO 2 and certain light hydrocarbon components in the aqueous phase. Throughout this paper, unless explicitly stated otherwise, no special distinction is made between hydrocarbon components and water. Governing...

...Theis Solution We start with solving the diffusivity equation for steady state flow in a radial system. The general diffusivity equation in porous media is a partial-differential equation for pressure with respect to both space (radius) and time. Abstract The primary goal of CO 2...

... integrity reservoir geomechanics production monitoring thermal expansion coefficient log analysis degc reservoir characterization upstream oil & gas reservoir simulation reservoir surveillance co 2 production control example 4 example 5 injection well flow model society injection...

... derivatives. We demonstrate the applications of the proposed inverse modeling framework to different energy transition applications, including petroleum production, extraction of geothermal energy, and CO 2 storage. We demonstrate various treatments of objective function definitions, well controls...

... impermeable. In this work we extend the idea of pressure jump stabilization to the compositional poromechanics setting in order to suppress these spurious oscillations. We apply this method to simulations of CO 2 injection into a synthetic aquifer which is represented using a fully unstructured mesh...