Regional sedimentary responses to syndepositional faulting and reservoir potential of Upper Cretaceous limestones in the B Oilfield, Mesopotamian Basin
December 2025
Upper Cretaceous limestones represent the primary reservoirs in the B Oilfield, central Mesopotamian Basin. While syndepositional faults have clear influences on the thickness of these strata, their...
Investigation on full-scale pore characterization and its implications for gas storage and development potential of deep coal seam in the Jiaxian block, NE Ordos Basin, China
December 2025
Deep coal reservoirs (buried depth > 2000 m) represent a significant yet underexploited resource for coalbed methane (CBM) production. In these reservoirs, CBM primarily exists in adsorbed and free...
Quantitative kinetic modeling of methane generation and δ13C signals for multiple samples in closed-system pyrolysis
December 2025
Hydrocarbon generation kinetics are influenced by complex factors, including temperature, reaction time, pressure, and molecular structure, which render simple modeling approaches inadequate for accurately...
A preliminary evaluation of carbon dioxide sequestration in coal seams at the Mae Moh mine, northern Thailand: A review
December 2025
The Mae Moh lignite-fired power plant is the only lignite-fired power plant and is the main point source of CO2 emissions in Thailand. This power plant uses lignite supplied from the Mae Moh lignite...
Origin of bedding-parallel fibrous calcite veins in the Permian carbonate, central Thailand: Constraint on hydrocarbon generation
December 2025
Bedding-parallel fibrous calcite veins (BPCVs) are found extensively in sedimentary basins and usually developed in petroleum source rock; however, their origin remains debated. This study investigates...
Implications of the geochemical characteristics of post-fracturing flowback fluids for shale gas exploration and exploitation
December 2025
Previous studies on post-fracturing flowback fluids focus primarily on their cleaning and discharge, high salinity sources, and damage to gas reservoirs. An analysis of the geochemical characteristics...
Carbon sequestration efficiency of urban mangroves: The role of native vs. introduced species
Available online 24 December 2025
This study evaluates species-specific differences in aboveground carbon sequestration among native and introduced tree species in an urban mangrove ecosystem of Guayaquil, Ecuador. Field measurements...
Architecture and formation of mouth bars in a shoal-water delta: a case study from the Zhahaquan oilfield, Qaidam Basin, China
Available online 11 December 2025
Distinguishing between shoal-water deltas and shore–shallow lake beach-bars is challenging, creating a widespread problem for bar-scale reservoir architecture analysis and ultimately affecting oilfield...
Big data analysis of waterflood performance in mature conventional oilfields in Eastern China
Available online 11 December 2025
Most conventional oilfields in Eastern China with waterflood operations have reached ultra-high water cut in the recent decade. The high water injection demand and produced water treatment cost pose...
Pore-Scale Numerical Simulation of CO2-Water Alternating Gas Injection for Enhanced Oil Recovery in Heterogeneous Porous Media
Available online 4 December 2025
To address the problem of low oil recovery efficiency during CO2 flooding in low-permeability and heterogeneous reservoirs, a two-dimensional microscale numerical model for the three-phase flow of oil,...
Genetic model of intraplate volcanic high-temperature geothermal system in Yanggao-Tianzhen Basin, Datong
Available online 4 December 2025
The Yanggao-Tianzhen Basin comprises three stratigraphic sequences from top to bottom, namely the Quaternary, Neogene-Paleogene, and Archean. The Quaternary serves as the regional caprock, and heat...
Optimization of CO2 flooding in tight oil based on improved machine learning
Available online 2 December 2025
This study develops an innovative methodology for CO2 flooding optimization in tight oil reservoirs through a novel hybrid analytical framework that effectively combines Grey Relational Analysis (GRA),...
Impact of hysteresis of relative phase permeabilities in 3D modeling of cyclic waterflooding in a carbonate reservoir
Available online 1 November 2025
The main task when extracting oil from waterflooded reservoirs during late development stages is enhancing the mobility of the remaining reserves. In the context of declining oil export prices, the...
Big data-driven analysis of shale gas enrichment patterns: A case study of the Wufeng–Longmaxi Formation in the Sichuan Basin and its periphery
Available online 17 October 2025
The Wufeng–Longmaxi Formation derives its name from the Upper Ordovician Wufeng Formation and the Lower Silurian Longmaxi Formation, found in sequence in the Sichuan Basin. This formation hosts rich...
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...
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...
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...
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...
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...
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,...
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...
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...
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...
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...