Fracture initiation and propagation laws of supercritical CO2 shock fracturing
February 2026
To investigate the fracture initiation and propagation behavior of fractures in tight sandstone under the supercritical CO2 (SCCO2) shock fracturing, laboratory fracturing experiments were conducted...
Total play system of natural gas in the northern continental margin of the South China Sea
February 2026
For the next exploration direction and integrated evaluation and optimization of targets for the northern continental margin of the South China Sea, this paper proposes the concept of the “total natural...
Review of the classification and related terminology of fine-grained sedimentary rocks
February 2026
Through tracing the background and customary usage of classification of fine-grained sedimentary rocks and terminology, and comparing current “sedimentary petrology” textbooks and monographs, this paper...
A collaborative optimization design method of platform location and well trajectory for a complex-structure well factory
February 2026
Using platform-target matching deviation, anti-collision difficulty, trajectory complexity, and total drilling footage as objective functions, and comprehensively considering constraints such as platform...
Classification of coal-forming environments and the formation and evolution of coal
February 2026
There is a lack of systematic understanding of coal-forming environment classification and its influences on coal petrological characteristics, a coal-forming mire classification scheme applicable to...
Geological features and exploration potential of shale oil in Jiuquan Basin, NW China
February 2026
This paper systematically analyzes the reservoir-forming characteristics and cretaceous shale oil types in four major hydrocarbon-generating sags (Qingxi, Ying'er, Huahai, and Shida) of the Jiuquan...
Global coal-rock gas resource potential and distribution
February 2026
Based on the data of regional geology, seismic, drilling, logging and production performance obtained from 94 major petroliferous basins worldwide, the global coal resources were screened and statistically...
An iterative regularized inversion method of fracture width and height using cross-well optical fiber strain
February 2026
The forward model of optical fiber strain induced by fractures, together with the associated model resolution matrix, is used to demonstrate the interpretability of fracture parameters once the fracture...
Simulation of proppant transport in complex fracture networks based on the multiphase particle-in-cell method
February 2026
A three-dimensional multiphase particle-in-cell (MP-PIC) method was adopted to establish a liquid-solid two-phase flow model accounting for complex fracture networks. The model was validated using physical...
Geomodelling of multi-scenario non-stationary reservoirs with enhanced GANSim
February 2026
GANSim is a generative adversarial networks (GANs)-based geomodelling framework with direct conditioning capabilities. To extend GANSim for geomodelling of multi-scenario and non-stationary reservoirs,...
Enrichment mechanism and optimal in-situ conversion recovery method of lacustrine low-to-medium maturity shale oil
February 2026
In-situ heating conversion is the most practical recovery method for lacustrine low-to-medium maturity shale oil. However, the energy output-input ratio must exceed the economic threshold to achieve...
Seismic prediction methods for continental distributary channel sands: OVT high-resolution processing, multi-attribute fusion and varible-scale inversion
February 2026
To address the challenges of complex fluvial sandbody distribution and difficult remaining oil recovery in mature continental oilfields, this study focuses on key issues in reservoir identification...
Dynamic reconstruction of the source-to-sink system of the Paleogene Enping Formation in the Baiyun Sag, Pearl River Mouth Basin, China: Insights from stratigraphic forward modeling
February 2026
Traditional source-to-sink analyses cannot effectively characterize deep-time sedimentary processes involving multiple sediment sources and the spatiotemporal evolution of sediment contributions from...
A multi-scale capillary-core-reservoir approach to determining cluster spacing for volume fracturing: A case study of Chang 7 shale oil of Triassic Yanchang Formation, Ordos Basin, China
February 2026
This paper proposes an approach to determing the optimal cluster spacing for volume fracturing in shale oil reservoirs based on three scales, i.e. microscopic capillary displacement, large-scale core...
Gas-water flow mechanism during the closure process of self-supporting fractures in shale and its engineering applications
February 2026
Taking the underground shale of the Silurian Longmaxi Formation in southern Sichuan Basin as the research object, stress-sensitive experiments on self-supporting fractures and micro-visualization experiments...
Carbonate rimmed platform of the Ordovician Yingshan Formation in the Gucheng area of the Tarim Basin and its implications for petroleum exploration, NW China
December 2025
The well deployment in the Ordovician Yingshan Formation in the Gucheng area of the Tarim Basin mainly focuses on the inner gentle slope in the western part of the study area, which results in a low...
Advances and future prospects of shale oil and gas drilling fluid technology
December 2025
This paper systematically reviews the advances in shale oil and gas drilling fluid technology, provides an in-depth analysis of the critical bottlenecks in each technology and explores their future...
Lithium enrichment pattern and resource potential in saline lacustrine shale and prospects for co-production with shale oil
December 2025
Based on the survey of saline lacustrine shales in the Permian Lucaogou Formation and Fengcheng Formation in the Junggar Basin, it is found that the sweet intervals of these shale oil strata are enriched...
Application of new dating and temperature-measuring technologies in study of strike-slip fault-controlled reservoirs and hydrocarbon accumulation: A case study of Ordovician strata in non-foreland area of Tarim Basin, NW China
December 2025
Focusing on the geochronological issues related to the matching relationship between the strike-slip fault activity and the stages of hydrocarbon generation, reservoir formation, and hydrocarbon accumulation,...
Differential hydrocarbon enrichment and its major controlling factors in the southern Tethys Domain
December 2025
Using the latest global datasets of hydrocarbon fields and reservoirs, this study systematically investigates the characteristics of differential hydrocarbon enrichment and its primary controlling factors...
Diffusion, mass transfer and oil mobilization mechanisms of CO2 huff-n-puff in Gulong shale oil reservoirs
December 2025
To reveal the complex crude oil-CO2 interaction mechanism and oil mobilization behavior during CO2 huff-n-puff in shale-type shale oil reservoirs, CO2 huff-n-puff experiments with on-line nuclear magnetic...
Temperature-pressure coupled experiments and response mechanisms of permeability evolution in deep continental shale
December 2025
To address the unclear permeability evolution mechanisms during in-situ conversion of deep continental shale, this study employs a pioneering online THMC (thermo-hydro-mechanical-chemical)-CT coupled...
Key controls on the formation of reservoirs along the ultra-deep strike-slip fault zone in the depression of the northern Tarim Basin, NW China
December 2025
Based on the data of reservoir rock cores and 3D seismic inversion for reservoir, a comprehensive analysis was conducted using in-situ U-Pb dating of calcite cements, fluid inclusions, and geochemical...
Evaluation methodology of coal-rock gas resources and exploration potential of favorable areas in onshore China
December 2025
Based on new understandings of the whole petroleum system theory for coal measures, and utilizing data from coal-rock gas wells and other oil and gas wells in numerous pilot test areas for key parameter...
Multi-component hydrocarbon-generation patterns and geological significance of the Permian Pusige Formation source rocks in the piedmont of southwestern Tarim Basin, NW China
December 2025
The traditional binary hydrocarbon-generation patterns are inadequate for accurately evaluating the hydrocarbon- generation potential of different types of source rocks in the Permian Pusige Formation...