Genesis and energy significance of natural hydrogen
2023
H2 is clean energy and an important component of natural gas. Moreover, it plays an irreplaceable role in improving the hydrocarbon generation rate of organic matter and activating ancient source rocks...
Share article
Overview of hydrogen storage and transportation technology in China
2023
In response to the global climate change and the need for green and low-carbon development, hydrogen energy has been recognized as a clean energy source that can achieve carbon neutrality unlike fossil...
Share article
Prospect evaluation of CO2 sequestration in coal beds of Anambra Basin, Nigeria
2023
Sequestrating carbon dioxide (CO2) for enhancing methane production from coal beds is one of the approaches being advanced to reduce the concentration of CO2 in the Earth's atmosphere. Some aspects...
Share article
Methods for identifying complex lithologies from log data based on machine learning
2023
The sedimentary environment of the marine-continental transitional facies leads to complex reservoir lithologies characterized by rapid changes in lithology, the presence of thin interbeds, and strong...
Share article
Pore structure characterization and its significance for gas adsorption in coals: A comprehensive review
2022
The coal reservoir has multifaceted and hierarchical characteristics influenced by heterogeneity of the pore and fracture networks. The coal pore including micropore, mesopores and macropores determines...
Share article
Geological characteristics and resources potential of shale oil in Chang 7 Member of Upper Triassic Yanchang Formation in Fuxian area, southern Ordos Basin, western China
2023
Ordos Basin is rich in shale oil resources. Fuxian area in the southern Ordos Basin is an important area where Sinopec is expected to make a breakthrough in the exploration and development of lacustrine...
Share article
Geology still matters – Unconventional petroleum system disappointments and failures
2021
Machine learning and factory drilling approaches have increased efficiency and improved the commerciality in many tight plays. However, not all the original resource estimates and potential opportunities...
Share article
Facies, textural and geochemical evaluation of the post-Santonian sandstones in the Bida basin, Nigeria: Implications for control on hydrocarbon sandstone reservoir characteristics and paleoenvironments
2023
Using a combination of field observations, textural analysis, scanning electron microscopy (SEM), mineralogical X-ray diffraction (XRD), X-ray fluorescence spectroscopy (XRF), and thin-section analysis,...
Share article
Application of molecular simulation in coalbed methane reservoirs: A systematic review
2022
As an important strategic supplementary energy of conventional natural gas, coalbed methane (CBM) has become a hot topic in energy exploration at home and abroad due to its advantages of high efficiency,...
Share article
Modeling wellbore instability in hot dry rock under various temperature conditions
2023
Hot Dry Rock (HDR) is a renewable energy source that has garnered attention due to its abundant reserves, widespread distribution, and consistent energy supply. However, the injection of cold water...
Share article
Synthesis of mixed methane-ethylene hydrate with ice powder
2023
The study of gas hydrate researched by the ice powder method is helpful for us to understand the storage, separation, transportation and transformation of gas on the solid surface. In this work, the...
Share article
Hydrogen's organic genesis
Available online 28 July 2023
Natural hydrogen exploration has been restricted in scope due to the predominance in thinking that various rock interactions with water in cratonic settings offer the best natural hydrogen sources....
Share article
Feature selection in GC-MS, NMR and MALDI-TOF spectra of tar sand bitumen
2023
Expectations from unconventional reservoirs are often overly optimistic when estimation criteria are transferred from one location to another but some of the many important elements of petroleum systems...
Share article
Source rock and reservoir qualities of middle Jurassic Lianggaoshan lacustrine shale at fuxing area, Sichuan Basin: Implication for shale-oil enrichment
2023
The shale oil exploration, in the Middle Jurassic Lianggaoshan Formation in the Fuxing area of Sichuan Basin, is in preliminary stage, requiring further in-depth study on shale oil and gas enrichment...
Share article
Permeability prediction in tight gas reservoirs based on pore structure characteristics: A case study from South Western Iran
2021
Porosity, pore structure characteristics, and permeability are among the key petrophysical properties of shale gas resources. Accurate characterization of these parameters in the unconventional gas...
Share article
Genetic mechanism of multi-scale sedimentary cycles and their impacts on shale-oil distribution in Permian Lucaogou Formation, Jimusar Sag, Junggar Basin
2023
Complex lithofacies of Lucaogou Formation in Jimusar Sag promote strong heterogeneity of oil distribution in fine grained sedimentary rocks. It is of great significance to define the formation mechanism...
Share article
Reservoir characteristics and gas production potential of deep coalbed methane: Insights from the no. 15 coal seam in shouyang block, Qinshui Basin, China
2022
Considering the large burial depth and unclear coalbed methane (CBM) development potential of the No. 15 coal seam in the Shouyang block in the northern Qinshui Basin, this study investigated the characteristics...
Share article
A short review of recent studies on applying low salinity water injection in unconventional reservoirs: An experimental approach
2022
The primary production from unconventional reservoirs remains almost low, so applying enhanced oil recovery (EOR) methods is inevitable. Due to the different structures of these reservoirs from conventional...
Share article
Diagenesis of tight sandstone and its influence on reservoir properties: A case study of Fuyu reservoirs in Songliao Basin, China
2023
Diagenesis is the primary cause of the densification of the Fuyu reservoir in Sanzhao sag, Songliao Basin. In this paper, the types of diagenesis, the influence of diagenesis on reservoir physical properties...
Share article
An investigation of data analysis method for hydraulic fracturing based on the water hammer effect
2023
Hydraulic fracturing plays a crucial role in the development of unconventional resources, and assessing fracture geometry is a fundamental aspect of hydraulic fracturing analysis. Among the various...
Share article
Logging identification of complex lithology of the Lower Jurassic Da'anzhai Member in the eastern slope of the western Sichuan Depression
2023
In recent years, with the in-depth development of oil and gas exploration in the eastern slope of the western Sichuan Depression, breakthroughs have been made in the research on high-quality gas reservoirs...
Share article
Characteristics of the tuffaceous shale oil reservoir and its sweet spots: A case study of the Tiaohu depression in the Santanghu Basin
2022
Shale oil has become an important alternative resource for conventional hydrocarbon resources. There are many areas with great exploration potential for shale oil worldwide, but the degree of exploration...
Share article
Brittleness assessment of the shale oil reservoir based on neural network method: A case study of the Yanchang Formation, Ordos Basin
2023
The Chang 7 oil-bearing layer of Yanchang Formation is rich in shale oil resources. However, the reservoir indicates strong reservoir heterogeneity and has obvious differences in productivity among...
Share article
Evaluation method for in-situ stress orientation using wave anisotropy and electrical imaging logging data: A case study from the Longmaxi Formation in Yongchuan area, Sichuan Basin
2023
In-situ stress orientation is a key parameter in studying oil and gas migration and accumulation, analyzing the stability of borehole wall during drilling, carrying out horizontal well design, fracturing...
Share article