Deep shale gas in China: Geological characteristics and development strategies

Energy Reports, Journal Year: 2021, Volume and Issue: 7, P. 1903 - 1914

Published: April 14, 2021

Deep shale gas reservoir (3,500 ∼ 4,500 m) of Wufeng–Longmaxi Formation in southern Sichuan Basin China has great potential for exploration and development, with resource 16.31 × 1012 m3, counting 84% the total resources this area. And deep wells Luzhou west Chongqing have achieved good development results past two years. We systematically summarized geological characteristics Formation, discussed facing challenges proposed some corresponding strategies. The six major characteristics. is concentrated depositional center deep-water shelf environment. rich silica organic carbon while low calcium clay. Organic pores, inorganic microfractures are developed well interconnected to form networks. Surface porosity generally > 5% increasing depth. content 4.7 7.5 m3/t, higher than that Changning, Weiyuan, Zhaotong pressure coefficient greater 2.0 highest Basin, indicating its best preservation condition. Up now, still encountered many problems challenges, including difficulty accurately obtaining parameters, unclear high production mechanism, urgent need optimal quick drilling technology, fracturing, hydro-fracture expansion rules. strategies deepen delicate evaluation clarify rules enrichment wells, strengthen field experiments explore effective applicable technologies fracturing China.

Language: Английский

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Study of void space structure and its influence on carbonate reservoir properties: X-ray microtomography, electron microscopy, and well testing

Marine and Petroleum Geology, Journal Year: 2023, Volume and Issue: 151, P. 106192 - 106192

Published: Feb. 25, 2023

Language: Английский

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Parametric Study of Polymer-Nanoparticles-Assisted Injectivity Performance for Axisymmetric Two-Phase Flow in EOR Processes

Nanomaterials, Journal Year: 2020, Volume and Issue: 10(9), P. 1818 - 1818

Published: Sept. 12, 2020

Among a wide range of enhanced oil-recovery techniques, polymer flooding has been selected by petroleum industries due to the simplicity and lower cost operational performances. The reason for this selection is mobility-reduction water phase, facilitating forward-movement oil. objective comprehensive study develop mathematical model simultaneous injection polymer-assisted nanoparticles migration calculate an factor. Then, sensitivity analysis provided consider significant influence formation rheological characteristics as type curves. To achieve this, we concentrated on driving equations recovery factor compare each parameter significantly nurture differences explicitly. Consequently, results extensive study, it evident that higher value mobility ratio, concentration formation-damage coefficient leads external filter cake being made in period subsequent solution administered sweep efficiency

Language: Английский

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Machine and deep learning for estimating the permeability of complex carbonate rock from X-ray micro-computed tomography

Energy Reports, Journal Year: 2021, Volume and Issue: 7, P. 1460 - 1472

Published: March 11, 2021

Accurate estimation of permeability is critical for oil and gas reservoir development management, as it controls production rate. After assessing numerical techniques ranging from pore network modeling (PNM) to the lattice Boltzmann method (LBM), an AI-based workflow developed a quick accurate complex carbonate rock its X-ray micro-computed tomography (micro-CT) image. Following features engineering using both image processing PNM, we trained tested on thousands segmented 3D micro-CT images shallow deep learning algorithms assess permeability. A broad variety supervised are implemented tested, including linear regression, support vector improved gradient boosting, convolutional neural networks. Additionally, explored hybrid physics-driven that takes into account petrophysical properties. Finally, found predicted by machine (ML) agrees very well with more computationally-intensive voxel-based direct simulation. In addition, ML model here provides substantial reduction in computation time roughly three orders magnitude compared LBM. This paper highlights crucial role played predicting properties learning. The proposed framework, integrating diverse algorithms, imaging, modeling, has potential quickly accurately estimate aid simulation characterization.

Language: Английский

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Current Status and Potential of Tire Pyrolysis Oil Production as an Alternative Fuel in Developing Countries

Sustainability, Journal Year: 2021, Volume and Issue: 13(6), P. 3214 - 3214

Published: March 15, 2021

Energy is essential for the nature of life and development countries. The main demand 21st century to fulfill growing energy needs. Pakistan, through use fossil fuels, meets demands. There pressure on economy country due massive reliance this tendency influenced by various environmental impacts. To overcome burden more attention has been drawn provide fuel substitution. Tire pyrolysis among effective substitutes technology that generates useful products liquid oil, char, pyro gas. This research focuses environmental, social, economic viability tire oil in Pakistan. study estimates production potential (TPO) Based calculations, Pakistan from 2015–2019 468,081 548,406 tons. TPO 2018–2019 was ~8.30% total import (6.6 million tons) crude oil. Therefore, considered an alternative representing environmentally solution

Language: Английский

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Microwave pyrolysis and its applications to the in situ recovery and conversion of oil from tar-rich coal: An overview on fundamentals, methods, and challenges

Energy Reports, Journal Year: 2021, Volume and Issue: 7, P. 523 - 536

Published: Jan. 19, 2021

Efficient, safe, and environmentally friendly methods for the low-carbon utilization of coal are required to exploit this resource as a source cleaner energy. Tar-rich can produce high volume oil is abundant in western China. Currently, tar-rich mostly combusted power generation, which results wastage valuable resources serious environmental pollution. Researchers have focused on achieving zero or near-zero carbon emissions while alleviating damage pollution geological formations when mining resources. In particular, use an intelligent unmanned automatic machine (UAMM) integrating microwave pyrolysis technology situ conversion into gas has been proposed. However, date, studies efficient extraction lacking. study, we outline state-of-the-art developments treatments coal. The principles advantages heating compared with traditional discussed. Further, current research applications microwave-assisted processing reviewed. We also discuss challenges future field microwave-based This report provides reference application mining, pyrolysis, liquid energy based UAMM.

Language: Английский

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Waste heat recovery in iron and steel industry using organic Rankine cycles

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 477, P. 146925 - 146925

Published: Nov. 8, 2023

In energy intensive industries, the Organic Rankine Cycles (ORCs), as a promising technology can remarkably enhance efficiency and reduce carbon emissions by converting low, medium, high-temperature heat source to electricity. Among most energy-intensive iron steel industry represents almost 5% of total world consumption. The significant amounts waste are produced being lost in industrial thermal processes. Better use process excess/waste savings provide an affordable reliable technical solution increase sector enhancing self-production This help mitigating electricity consumption due electrification thereby reducing load on power grids. Moreover, recovery substantially contribute challenge combat against global warming. ORC technologies for recovery, one suitable boost sustainable transition sector. feasibility study will knowledge design criteria, achievable performance cost components paving way ORCs industry, supporting their market penetration role fight climate change.

Language: Английский

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Thermodynamic Optimization of a Geothermal Power Plant with a Genetic Algorithm in Two Stages

Processes, Journal Year: 2020, Volume and Issue: 8(10), P. 1277 - 1277

Published: Oct. 12, 2020

Due to the harmful effects and depletion of non-renewable energy resources, major concerns are focused on using renewable resources. Among them, geothermal has a high potential in volcano regions such as Middle East. The optimization an organic Rankine cycle with heat source is investigated based genetic algorithm having two stages. In first stage, optimal variables depth well extraction flow rate fluid mass. value well, mass rate, temperature found be 2100 m, 15 kg/s, 150 °C. second efficiency output power plant optimized. To achieve maximum efficiency, variable pressure high-temperature exchanger. optimum values production equal 0.433 MW 14.1%, respectively.

Language: Английский

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CO2 Utilization via Integration of an Industrial Post-Combustion Capture Process with a Urea Plant: Process Modelling and Sensitivity Analysis

Processes, Journal Year: 2020, Volume and Issue: 8(9), P. 1144 - 1144

Published: Sept. 13, 2020

Carbon capture and utilization (CCU) may offer a response to climate change mitigation from major industrial emitters. CCU can turn waste CO2 emissions into valuable products such as chemicals fuels. Consequently, attention has been paid petrochemical industries one of the best options for CCU. The largest removal monoethanol amine-based plant in Iran simulated with aid chemical process simulator, i.e., Aspen HYSYS® v.10. thermodynamic properties are calculated acid gas property package models, which available HYSYS®. results simulation validated by actual data provided Kermanshah Petrochemical Industries Co. Results show that there is good agreement between real performance under different operational conditions. main parameters efficiency percent, heat consumption MJ/kg removed, working capacity function inlet pressure temperature absorber column. case occurred at approximate 40 42 °C atmospheric 80.8 81.2%; 0.232 0.233; 4.78 CO2.

Language: Английский

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CFD-based simulation to reduce greenhouse gas emissions from industrial plants

International Journal of Chemical Reactor Engineering, Journal Year: 2021, Volume and Issue: 19(11), P. 1179 - 1186

Published: Aug. 1, 2021

Abstract Greenhouse gas (GHG) pollution is considered one of the challenging concerns in industrial plants, and to emit appropriate designation nitrogen oxide reduction, it required implement proper numerical simulation procedures. In this study, ANSYS Fluent ® software used as dynamic solve heat mass flow transfer numerically by considering non-structured networks for complex geometries. Dry burners have an additional thermocouple provide extra fuel pathway combine with air. Then, standard K-ε simulations calculate thermal efficiency combustion processes turbulent regimes. It can cause removal 50% into atmosphere. Furthermore, increase temperature, concentration has been increased system. After 1975 K, Fuel changed dry fuel, therefore because steam a relatively non-combustible compound than fuel. On other hand, regarding water volume at inlet steam, percentage decreased dramatically, especially first periods increase. Consequently, when instead water, reduction increased. Moreover, our results match Gibbs energy equilibrium.

Language: Английский

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