A new modelling approach for in-situ hydrogen production from heavy oil reservoirs: Sensitivity analysis and process mechanisms

Energy, Journal Year: 2024, Volume and Issue: 302, P. 131817 - 131817

Published: May 26, 2024

Language: Английский

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Evaluating reservoir suitability for large-scale hydrogen storage: A preliminary assessment considering reservoir properties

Energy Geoscience, Journal Year: 2024, Volume and Issue: 5(4), P. 100318 - 100318

Published: May 21, 2024

With rising demand for clean energy, global focus turns to finding ideal sites large-scale underground hydrogen storage (UHS) in depleted petroleum reservoirs. A thorough preliminary reservoir evaluation before (H2) injection is crucial UHS success and safety. Recent criteria often emphasize economics chemistry, neglecting key attributes. This study introduces a comprehensive framework the reservoir-scale assessment, specifically tailored long-term H2 within gas The encompass critical components, including geometry, petrophysical properties, tectonics, formation fluids. To illustrate practical application of this approach, we assess Barnett shale play parameters. assessment unfolds through three stages: (1) systematic reservoir's properties against our screening determines its suitability storage. (2) Using both homogeneous multilayered models, explore feasibility efficiency phase involves an in-depth examination behavior during stage. (3) enhance understanding performance, sensitivity analyses investigate impact varying dimensions injection/production pressures. findings reveal following: (a) Despite potential challenges associated with compaction aquifer support, exhibits substantial promise as site. (b) Notably, pronounced increase pressure manifests stage, particularly (c) Furthermore, optimizing injection-extraction cycle can be achieved by augmenting while maintaining consistent thickness. ensure smooth transition implementation, further investigations are advised, experimental numerical studies address injectivity concerns site development. valuable tool assessing reservoirs storage, advancing eco-friendly energy systems.

Language: Английский

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Comparative Numerical Study on the Optimization of Double-Simultaneous Gas Injection Techniques for Enhanced Hydrogen Production from Depleted Light Oil Reservoirs

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(17), P. 16358 - 16370

Published: Aug. 13, 2024

The growing demand for sustainable energy solutions due to escalating climate change challenges has spurred interest in the production of hydrogen from petroleum reservoirs. This comparative numerical study investigates optimization generation depleted light oil reservoirs through double-simultaneous gas injection techniques, namely, CH4 + CO2, CO2 O2, and N2 using CMG STARS thermal reservoir simulator. focuses on multilayered runs simulations a period 15 years evaluate long-term viability. Furthermore, it explores impact critical parameters strategies yield. Findings reveal that is most effective technique, yielding significant cumulative 189,225 kg, representing 102.26% increase base case. O2 also show substantial improvements upon optimization, with increasing by 33.95 181.80%, respectively. Sensitivity analysis highlights influence porosity, permeability, temperature, pressure, mole fraction Reservoir porosity permeability significantly affect efficiency, particularly strategy showing heightened sensitivity. Temperature proves crucial maximizing reaction kinetics, while adjusting pressure further enhances production. underscores complex interplay between characteristics situ generation. Optimization efforts offer promising avenues improving efficiency reservoirs, contributing solutions.

Language: Английский

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Sustained Casing Pressure Assessment Based on Gas Leakage Rate by the State of Equation for Real Gas

Energy Science & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

ABSTRACT Gas leakage is one of the most concerning issues in wells for exploring conventional or unconventional oil and gas reservoirs, carbon sequestration, geothermal energy. Wellbore barriers, such as tubing, casing, cement, are primary components that prevent undesirable flow subsurface fluids. However, due to complexity operating condition a harsh environment, tubing integrity prone failure, causing forming sustained casing pressure (SCP) at wellhead. This work proposes prediction model considering real effect when evaluating SCP. The proposed involves flow, leakage, accumulation wellbore. With temperature obtained by equations boundaries, estimates rate point Subsequently, comparing current with method demonstrates model's performance. Finally, applied an ultra‐deep well determine location inversion. Further sensitivity studies reveal influences wellbore conditions on SCP, including production rate, depth liquid level, annular fluid density. study indicates traditional based ideal underestimates mass approximately 22% compared model. When adiabatic index approximated isentropic coefficient, may agree It acceptable predict assuming pure methane ignoring influence composition. position influential factor These results would help engineers SCP wells.

Language: Английский

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Optimizing hydrogen generation from petroleum reservoirs: A dual-perspective approach for enhancing efficiency and cleaner production

Gas Science and Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 205576 - 205576

Published: Feb. 1, 2025

Language: Английский

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Risk Assessment of Wellbore Leakage during Underground Hydrogen Storage

Gas Science and Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 205661 - 205661

Published: May 1, 2025

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Optimizing gas lift for enhanced recovery in the Asmari formation: a case study of Abu Ghirab field in Southeastern Iraq

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Aug. 31, 2024

The gas lift technique applies bubble injection into the vertical wells to raise production. Gas and liquid rates, shifts in flow regimes, system equilibrium influence this process. This study explores efficient implementation of techniques maximize production from Asmari Formation Abu Ghirab Field, southeastern Iraq, using a continuous for maximum rate by PIPESIM TM software. results design four (AGCS-33, 26, 28, 36) show that Vogel method provided best design, faults facies distribution impact oil rates. These will become evident with AGCS-33 36 as their proximity increase rates limit 7 MMSCF/d. Conversely, 26 marginally rise, starting at 5 In addition, effect is clearly middle western crest, which shows an increasing percentage 136.6% minimum 198.5% well AGCS-26, 89.7% 105.7% AGCS-36. Wellhead pressure has significant on gas-lift performance, improving efficiency can be accomplished electric control valve. feasibility implementing depends water cut, location, saturation within Formation.

Language: Английский

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Probing the Mechanism and Impact of Light Oil Oxidation on In Situ Hydrogen Production from Petroleum Reservoirs: A Combined SARA-Based Experimental and Numerical Investigation

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(18), P. 17649 - 17661

Published: Aug. 28, 2024

Language: Английский

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Numerical Evaluation of Multi-well Cyclic Gas Injection Technique for Enhanced Oil Recovery in Composite Tight Oil Reservoirs

Arabian Journal for Science and Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 5, 2024

Language: Английский

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