Impact of salt dome morphology on geological storage volumetric estimations: Implications for prospect-scale assessment
December 2025
Geological storage in salt caverns plays a critical role in managing energy resources, yet regional assessments often fall short in accounting for specific salt dome morphological variations that can...
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An intelligent log-seismic integrated stratigraphic correlation method based on wavelet frequency-division transform and dynamic time warping: A case study from the Lasaxing oilfield
September 2025
Stratigraphic correlations are essential for the fine-scale characterization of reservoirs. However, conventional data-driven methods that rely solely on log data struggle to construct isochronous stratigraphic...
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Hydrocarbon generation characteristics and potential of liptinite-rich coal in China
September 2025
Coal-measure source rocks may play an important role in hydrocarbon generation in petroliferous basins where coal seams are well developed. Hydrocarbon generation characteristics and potential of coal-measure...
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Key technologies for increasing production based on the best practices of major shale oil and gas basins
September 2025
Key technologies that make productivity increase are revealed through analyzing the best practices and production data in major shale basins of North America. Trends of the key technologies and optimization...
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Transient well-test model of a slanted well in a heterogeneous multi-zonal reservoir
September 2025
To enhance the comprehension of flow characteristics and enrich the well-test theory of slanted wells, this study established a well-test model for a slanted well in a heterogeneous multi-zonal reservoir....
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Cambrian-Devonian paleogeographic evolution of the western and central segments of North Africa
September 2025
This study reconstructs the lithofacies and paleogeographic evolution of North Africa during the Cambrian to Devonian periods, emphasizing the influence of tectonic events, sea-level fluctuations, and...
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Enhanced understanding of carbonate-rich shale heterogeneity through multifractal characterization based on N2 adsorption data: A case study of the Permian Wujiaping Formation in the Sichuan Basin
September 2025
The carbonate-rich shale of the Permian Wujiaping Formation in Sichuan Basin exhibits significant heterogeneity in its lithology and pore structure, which directly influence its potential for shale...
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Organic pore heterogeneity and its impact on absorption capacity in shale reservoirs in the Wufeng and Longmaxi formations, South China
September 2025
This study aims to determine the variation and controlling factors of shale gas adsorption capacity in reservoirs in the Upper Ordovician Wufeng Formation and the Lower Silurian Longmaxi Formation (also...
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Facies and NMR-based petrophysical analyses of the Apollonia unconventional gas reservoir: A case study from the BED 9 field, Abu Gharadig Basin, North Western Desert, Egypt
September 2025
The Early Paleocene to Middle Eocene Apollonia Formation in the BED‒9 field has been particularly interesting for unconventional hydrocarbon exploration since its discovery in 2006. However, the multiscale...
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Comparative investigation of the heat extraction performance of an enhanced geothermal system using H2, CO2, and H2O as working fluids
September 2025
The optimization of working fluids in single-well coaxial geothermal systems presents a critical pathway for advancing the use of enhanced geothermal systems (EGS) in renewable energy applications....
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Characteristics of pore-throat structures in volatile oil reservoirs and strategies for optimal development
September 2025
The third member of Shahejie Formation (also referred to as Sha 3 Member) in Dongpu Depression, China, a volatile, low-permeability oil reservoir with complex fluid compositions, is subjected to high...
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Spatiotemporal distribution patterns and exploration implications of multi-type coal-measure gases in the Daniudi gas field, Ordos Basin, China
September 2025
Coal-measure gas is a primary target with significant potential for the exploration of unconventional hydrocarbon resources. However, the spatiotemporal distribution and combination patterns of multi-type...
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Evaluating poro-elastic production drive mechanisms: Quantifying the potential contribution to well-rates and risk of core handling damage inflating pore-volume compressibility measurements
September 2025
By analyzing core data from an offshore Gulf of Mexico reservoir and developing analytical solutions, it can be demonstrated that laboratory measurements on pore-volume compressibility include artifacts,...
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Geomechanical parameter-driven evaluation of ultra-deep reservoirs: An integrated methodology and its application to the Kuqa depression, Tarim Basin
September 2025
Reservoir evaluation is important in identifying oil and gas sweet spots in sedimentary basins. This also holds true in the Tarim Basin, where the ultra-deep oil and gas-bearing formations have high...
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Multi-analytical assessment of shale gas potential in the West Bokaro Basin, India: A clean energy prospect
September 2025
Shale gas, a type of unconventional natural gas found within shale formations, has emerged as a significant source of energy globally. The West Bokaro Basin, part of the Damodar Valley, is known for...
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Experimental assessment of enhanced geothermal system potential of partially abandoned or dry oil wells in a sedimentary basin
September 2025
An enhanced geothermal system (EGS) represents a promising approach to sustainable energy generation by harnessing subsurface heat from deep geological formations with low natural permeability. Sedimentary...
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A comprehensive review of CO2 subsurface storage: Integrity, safety, and economic viability
September 2025
Anthropogenic emissions reached 37.4 Gt/a in 2023, intensifying the need for effective carbon storage in subsurface formations to mitigate global warming. Carbon Capture and Storage (CCS) has emerged...
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Sequence stratigraphic and sedimentary evolution of the Cambrian Xiannüdong Formation in the north central Sichuan Basin, SW China
September 2025
The high-frequency cycles seen in the carbonates of the Cambrian Xiannüdong Formation in the Sichuan Basin commonly exhibit a certain coupling relationship with the development of grain shoals; this...
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Formation and evolution of thiadiamondoids in petroleum: Evidence from thermochemical sulfate reduction simulation experiments with 1,3-dimethyladamantane
September 2025
Thiadiamondoids (TDs) have recently attracted increasing attention as molecular proxies for thermochemical sulfate reduction (TSR) reactions in reservoirs. However, their formation mechanisms, as well...
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Cases of possible structural-stratigraphic accumulations in the Oriente Basin, analysis on their accumulation mechanisms and implication for future exploration
September 2025
Three cases of structural-stratigraphic accumulations in the foredeep zone of the Oriente Basin have been analyzed. The target reservoirs are U and M1 sections of Napo Fm. in the Basin. Seismic amplitude...
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Characterizing stratigraphically complex deepwater slope channel reservoirs for production optimization and better field management – A brown field example, offshore West Africa
September 2025
The dynamic relationship between field management and reservoir characterization has often been a puzzle, especially in complex deepwater channel systems. Reservoir management and infill drilling success...
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Mitigating clay swelling and permeability loss in thermal EOR with a quaternary ammonium clay stabilizer under high-temperature low-salinity conditions
Available online 26 July 2025
Clay swelling and fines migration pose significant challenges to thermally enhanced oil recovery (EOR) operations, particularly in clay-rich formations. This study systematically investigates clay swelling...
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Exploring interconnected indicators of energy transition: A global perspective
Available online 26 July 2025
This study aims to evaluate the relative importance of the pillars and indicators within the Energy Transition Index (ETI) and their influence on overall ETI performance. Using a dataset from the World...
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Quantitative recognition and petroleum geological significance of interlayers in coastal sandstone reservoirs: A case study from the Donghe Sandstone in the Hade Oilfield, Tarim Basin, NW China
Available online 10 July 2025
Buried coastal sandstones would be of high-quality hydrocarbon reservoirs. Controlled by deposition and diagenesis, coastal sandstones mixed with muddy and calcareous materials are usually low in porosity...
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Characteristics of carbon emission point sources and industry analysis in the Guangdong-Hong Kong-Macau Greater Bay Area
Available online 8 July 2025
Carbon Capture, Utilization, and Storage (CCUS) technology has gained widespread attention in recent years as a critical strategy to combat global climate change, particularly in achieving carbon neutrality...
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