In-situ porosity restoration of clay-rich lacustrine shale oil reservoirs and its implications for shale oil reserve evaluation
June 2026
To accurately evaluate the storage capacity of shale oil reservoirs under in-situ temperature and pressure conditions, we constructed a new model for determining the porosity under formation conditions,...
Research advances and exploration breakthrough directions of the Jurassic coal-measure whole petroleum system in the Junggar Basin, China
June 2026
Under the guidance of the whole petroleum system (WPS) concept, the Jurassic coal-measure source rocks, source-reservoir- caprock conditions, and configurations of various hydrocarbon accumulations...
Phase behavior and mass transfer mechanisms of CO2 multicomponent gas and crude oil system
June 2026
The large-scale deployment of carbon capture, utilization and storage (CCUS) technologies and the growing demand for low-cost gas sources provide new opportunities for the development of CO2 multicomponent...
Seepage field construction and technical directions for efficient development of shale gas reservoirs: A case study of Fuling shale gas field, Sichuan Basin, China
June 2026
Based on the post-frac core evaluation results for shale gas reservoirs in the Jiaoshiba block of the Fuling gas field, a simulation method for tensile-shear composite fracture networks in shale and...
Development status and trends of oil production engineering technology in the context of interdisciplinary integration
June 2026
This paper systematically reviews the development stages and current status of key oil production engineering domains, including injection-production engineering, artificial lift, reservoir stimulation,...
Temperature-pressure history of the Cretaceous Qingshankou Formation and its relationship with Gulong shale oil enrichment in the northern Songliao Basin, China
June 2026
The temperature-pressure history of the organic-rich shale in the Cretaceous Qingshankou Formation in the northern Songliao Basin was reconstructed through comprehensive analyses, including field tests,...
Cementing and film-forming hydrophobic drilling fluid technology for long horizontal wells in deep coal-rock gas reservoirs
June 2026
Through a systematic analysis of the physical properties of coal and gangue, including microscopic pore structure, surface wettability and mechanical strength, the mechanism of borehole wall collapse...
Formation mechanism of coal-rock gas accumulation transition zones
June 2026
Research on hydrocarbon accumulation mechanism in coal-measure whole petroleum systems and coal-rock gas exploration has revealed that coal-rock gas occurs along coal-bearing strata and forms different...
Progress in shale gas accumulation theory and exploration of the Cambrian Qiongzhusi Formation in the Sichuan Basin, China
June 2026
Taking the Cambrian Qiongzhusi Formation in the Ziyang–Jingyan area of the southwestern Sichuan Basin as the research object, this study investigates the reservoir characteristics, enrichment mechanism...
Enrichment factors and strategic target areas of medium- to low-rank coal-rock gas/coalbed methane in Xinjiang, China
June 2026
To solve the problems of the poor understanding of enrichment factors, unclear exploration targets, and challenging selection of favorable areas for medium- and low-rank coal-rock gas/coalbed methane...
A multi-agent collaborative framework with human-in-the-loop for well log interpretation and applications
June 2026
This paper proposes a multi-agent system centered on large language models to address the issues that traditional well log interpretation relies on expert experience and poses great difficulty in multi-disciplinary...
Design framework for polymer gel treatments from a database of field projects
June 2026
This study compiles and analyzes data from over 125 published field projects around the world, covering nearly 900 treated wells. Building on those detailed studies, this paper distills the most important...
An intelligent injection-production model based on graph connection element driven by data and physics
June 2026
To address the challenges of connectivity characterization, dynamic prediction efficiency, and real-time optimization in complex reservoir injection-production systems, this study proposes a physics-...
Research status and prospects of numerical simulation technology for hot dry rock geothermal development
June 2026
This paper systematically investigates the numerical simulation model construction and methods for hot dry rock geothermal resource development. It highlights the influence law and characterization...
Aqueous two-phase high-viscosity friction reducer for deep reservoir fracturing and its mechanisms of temperature resistance and viscosity enhancement
June 2026
Given the stringent requirements for friction reducers in terms of long-distance friction reduction, efficient proppant transport, temperature resistance and viscosity enhancement in deep oil and gas...
Research progress, challenges, and prospects of continental shale oil
June 2026
Through systematic comparison of the geological characteristics, resource distribution, and exploration and development status of global marine and continental shale oil, this paper deeply analyzes...
Accumulation characteristics and exploration progress of global ultra-deep oil and gas
June 2026
Global deep Earth exploration and ultra-deep oil and gas exploration (below 6 000 m) have attracted increasing attention, with a growing number of major oil and gas discoveries. This article systematically...
Geologic characteristics, development technologies and prospects of unconventional natural gas in China
June 2026
Based on China’s latest exploration and development achievements, production performance data of over 7 000 horizontal wells, and the Unconventional Oil & Gas Digital-Intelligent Platform (UOG), and...
Dynamic conditions and processes of three-dimensional accumulation of Sinian-Permian natural gas in Penglai gas area, central Sichuan Basin, SW China
April 2026
Considering the complexities of gas-water relationships in the gas reservoirs, unclear natural gas distribution and difficult exploration expansion of the Sinian–Permian natural gas in the Penglai gas...
Key technologies for efficient and stable production through intelligent zonal fine water injection in Qinghai Oilfield, NW China
April 2026
In response to the unsatisfactory water injection performance in Qinghai Oilfield caused by complex reservoir geological conditions, the fourth-generation cable-controlled zonal water injection technology...
Experimental study on mechanism of inter-well steam channeling and steam channeling control capability of multicomponent thermal composite system in difficult- to-produce heavy oil reservoirs
April 2026
Taking typical difficult-to-produce heavy oil reservoirs as the research object, a multi-scale physical simulation experimental device for heavy oil thermal recovery and corresponding similarity criteria...
Hydrocarbon enrichment patterns and exploration targets in the Paleogene Liushagang Formation, Wushi Sag, Beibuwan Basin, China
April 2026
The Paleogene Liushagang Formation in the Wushi Sag of the Beibuwan Basin is characterized by dispersed hydrocarbon distribution, small-scale residual exploration targets and large burial depth. Based...
Internal architecture characterization of carbonate reservoirs and its geological significance for reservoir development: A case study of Cretaceous Main Mishrif Formation in H oilfield, the Middle East
April 2026
This study investigates the strong heterogeneity and complex internal architecture of carbonate reservoirs, using the Cretaceous Main Mishrif Formation in the Middle East as an example. A multi-scale...
Connotation, key issues, and future development of the new-generation volume stimulation technology
April 2026
This paper systematically reviews the development history and generational characteristics of multi-stage fracturing technology in horizontal wells and defines the connotation and essence of the new-generation...
Hydrocarbon accumulation characteristics and exploration progress of the Triassic Jiucaiyuan Formation in the eastern Fukang Sag, Junggar Basin, NW China
April 2026
Based on data from drilling, logging, seismic surveys and tests, a systematic study was conducted on the petroleum geological characteristics and hydrocarbon accumulation features/models of the Triassic...
