... Abstract Liquid polymer emulsions, a promising alternative to powder polymers, can minimize facility footprint and initial CAPEX. This study evaluates their use in a low permeability, small-sized reservoir in Austria, typically used in high permeability reservoirs. It aims to assess...

... to be drilled based on pre-model mapping, while the acquired 3D seismic data was under the processing stage. The Neogene age reservoirs consist in alternating sedimentary thin layers of clay, siltstone and sandstone, low resistivity contrast formations. The vertical thickness of these layers is varying from...

... liquified natural gas (lng) well integrity drilling operation drilling fluids and materials geological subdiscipline operational safety natural hydrogen real time system accumulation reservoir hydrogen exploration australia natural hydrogen exploration underground hydrogen storage...

... less effective in high-temperature (≥ 80°C) and high-salinity reservoirs (≥ 100 g/L TDS). More robust synthetic polymers have been developed that show stability up to 140°C and high salinity levels of up to 260 g/L. Despite their effectiveness, these improved polymers are more expensive and need a high...

... microbiological risk of depleted reservoirs located on the Italian territory and currently converted into Underground Gas Storages (UGS). Preserved samples of formation fluids were collected from nine different UGS spread across Italy. The microbiological analyses involved a comprehensive metabarcoding...

... density correction log (DRHO) Gamma ray log (GR) Spectroscopy gamma ray log (SGR) Computed gamma ray log (CGR) Neutron porosity log (NPHI) Potassium log (POTA) Thorium log (THOR) Uranium log (URAN) Operational and Geographic Parameters Calculated Reservoir Parameters...

... mineral precipitation formation water simulation mineral phase evaluate mineral scaling risk precipitation precipitate barite equilibrium paraffin remediation geothermal loop reservoir composition silicate highest amount geochemical characterization solubility silica saturation index...

..., or if the reactions occur in situ deep within the reservoir, they may reduce Flow Assurance risks by removing scaling ions from the brines before they reach the production wells. This study considers these processes in a Norwegian Sea carbonate-containing sandstone reservoir, and the impact they will have...

... across the whole field. Economic Assessment and Area of Interest (AOI) Selection A Field Re-Development project was proposed to evaluate the feasibility of polymer flooding in specific regions of the reservoir. The selection of an Area of Interest (AOI) was based on key criteria such as remaining...

... to casing, cement, and completion. Wellbore Integrity: Fundamentals and Challenges Definition and Components The purpose of a well is to establish a secure connection between the reservoir and the surface. Therefore, wellbore integrity is critical to maintaining both structural and sealing...

... Abstract Inflow Control Devices (ICDs) are designed to optimize oil and gas production by managing inflow profiles along the wellbore. They are particularly effective in reservoirs with challenges such as water coning, high water-cut zones, and heterogeneity. By restricting inflow from high...

... Extended-reach drilling (ERD) has become a key strategy for maximizing reservoir contact, unlocking bypassed reserves, and reducing surface footprint, emissions, and overall development costs. Slim-hole ERD wells, in particular, offer a cost-effective and environmentally sustainable means...

... performance injectivity enhanced recovery well performance artificial intelligence monitoring injectivity index efficiency operation real time system geothermal plant waterflooding machine learning digital twin technology hall plot operator geothermal reservoir shoeibi omrani reservoir...

... sintered bauxite proppants ( Wu, 2017 ; Ding 2022 ). These fly ash-based proppants compressive strengths were around 28 MPa, 4000 psi, making them suitable for use in a variety of reservoir conditions (Zhang, 2019). Furthermore, studies have shown that fly ash proppants can be coated with resins or other...

... of baseload energy. To ensure efficient heat utilization the produced fluid should have high enough temperature to support downstream power generation. Geothermal reservoirs, much like oil and gas reservoirs, can suffer from non-optimum and/or overproduction if not properly managed. Excessive extraction...

... A methodological approach is proposed in order to define and evaluate the rock volume surrounding an underground gas storage (UGS) reservoir that is potentially subjected to a stress perturbation due to the storage activities. The analysis is based on a coupled computational modeling approach...

... Abstract Hydrogen offers a potential replacement for conventional fossil fuels as a sustainable energy vector. Despite this promise, its large-scale storage is one of the main bottlenecks. Utilizing depleted gas reservoirs for hydrogen storage could present a viable solution. However...

... Abstract This paper introduces a novel approach to optimize the allocation of injection and production wells in geothermal systems, based on the Look-Ahead Models (LAMs) framework that was originally designed for hydrocarbon reservoir optimization using numerical simulation. The goal...

... and 16.TH reservoir of the Matzen field before AP pilot. A series of core flood experiments (with PITTs) were also conducted before and after AP to compare the estimated Sor from the PITT with the measured Sor from the core flood. For all the projects, the K-value of the selected partitioning tracer...

... rock surfaces, such as chalk. A study on low salinity waterflooding in Danish Chalk reservoirs yielded results differing from existing literature. To further investigate these results, core flooding experiments were conducted using diverse chalk samples, including outcrop material, dry-stored reservoir...