Field and numerical modelling on the stability of underground strata in longwall workings
January 2023
The longwall method is one of the feasible and efficient underground mining methods for greater depth of workings. Recently, Singareni Collieries Company Limited (SCCL), the largest coal-producing government...
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Exploration progress of the Paleogene in Jiyang Depression, Bohai Bay Basin
January 2023
With increased exploration in the faulted basins of eastern China, petroleum exploration in this region has been challenged by unclear remaining petroleum resources distribution, complex reservoir and...
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Reservoir quality evaluation using sedimentological and petrophysical characterization of deep-water turbidites: A case study of Tariki Sandstone Member, Taranaki Basin, New Zealand
January 2023
The current study aims to ascertain the reservoir characteristics of the Tariki Sandstone Member of the Otaraoa Formation, Taranaki Basin, New Zealand. This study was carried out by integrating the...
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Analysis of high-resolution airborne-magnetic data for hydrocarbon generation and preservation potential evaluation of Yola sub-basins, northern Benue Trough, northeastern Nigeria
January 2023
High-resolution airborne-magnetic data acquired over the Yola extension of the northern Benue Trough, northeastern Nigeria, were analyzed to delineate rock distribution, define basement geometry, determine...
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Layered injection technology for chemical flooding of Class-III oil reservoirs in the Daqing Oil Fields complex, Songliao Basin, Northeast China
January 2023
The Class-III oil reservoirs of Lasaxing oilfield in the Daqing Oil Fields complex have geological oil reserves of 1.86 billion tonnes, an oil recovery of 39%, with remaining reserves accounting for...
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Geochemical analysis and quality assessment of geothermal water in Gujarat, India
January 2023
Geothermal water can have a wide range of direct applications, including drinking, domestic use, irrigation and industrial use. This study analyses geothermal water from Dholera, Diu, Gandhar, Kutch,...
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Roles of gypsum/salt-bearing sequence in hydrocarbon accumulation and storage
January 2023
Gypsum/salt beds are widely developed in petroliferous basins across the world. Most basins with gypsum/salt beds have been proven to host abundant hydrocarbon resources. Previous studies on the effects...
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Effects of cementation on physical properties of clastic rock-originated weathering crust reservoirs in the Kexia region, Junggar Basin, NW China
January 2023
Cements are widely developed in clastic rock-originated weathering crust (CWC) reservoirs in the Kexia region along the northwestern margin of the Junggar Basin and significantly affect reservoir physical...
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Behavior and controlling factors of methane adsorption in Jurassic continental shale, northeastern Sichuan Basin
January 2023
The behavior and controlling factors of natural gas adsorption in the Jurassic continental shale in the northeastern Sichuan Basin are studied based on the organic geochemical features, mineral compositions...
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Recent advances in evaluation, evolution and quantitative characterization of tight reservoirs: Introduction
October 2022
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Status-quo of proved oil/gas initially-in-place in China as of 2020 and its variation trend in the past decade
October 2022
This study analyzes the status-quo of the proved oil/gas initially-in-place and its variation trend, the proved undeveloped oil/gas initially-in-place, and the remaining proved technically recoverable...
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Physical properties of sandstone reservoirs: Implication for fluid mobility
October 2022
Core samples representing depths of hydrocarbon-bearing zones are not readily accessible for reservoir evaluations. On the other hand, wireline logs with incorporated seismic data, which can be archived...
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Reconnaissance investigation of geothermal resources in parts of the Middle Benue Trough, Nigeria using remote sensing and geophysical methods
October 2022
In Nigeria, the basement complex and the sedimentary basins house many thermal springs which are physical manifestations of geothermal energy. However, there are difficulties in accessing the sustainability...
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A new understanding of Jurassic provenance and sedimentary framework in northwestern Sikeshu Sag, Junggar Basin, China
October 2022
For a basin or sag with low exploration maturity, the understanding of its provenance system and clastic distribution system is the key to the analysis of its sedimentary framework and further influence...
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Tight sandstone reservoir sensitivity and damage mechanism analysis: A case study from Ordos Basin, China and implications for reservoir damage prevention
October 2022
Analysis of reservoir sensitivity to velocity, water, salt, acid, alkali and stress is critical for reservoir protection. To study the tight sandstone reservoir sensitivity at different formation depths...
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Characteristics and classification of paleozoic tight reservoirs in the central uplift of the South Yellow Sea Basin
October 2022
Several sets of Paleozoic tight reservoirs are developed in the Central Uplift of the South Yellow Sea Basin. A qualitative analysis of the microscopic pore structure of the tight reservoir rocks was...
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Acoustic emission-based numerical simulation of tectonic stress field for tectoclase prediction in shale reservoirs of the northern Guizhou area, China
October 2022
Natural fractures, like tectoclases, are essential in the formation of shale gas reservoirs and have been the focus of study for shale gas development. Tectoclases provide most storage space for gas...
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Restoration of the pre-Jurassic paleogeomorphology and its control on hydrocarbon distribution in western Ordos Basin
October 2022
In recent years, the discovery of the Jurassic oil reservoirs in the Western Thrust Belt of the Ordos Basin reveals that the Jurassic formation in this area has huge oil and gas potential. The pre-Jurassic...
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Analysis of tight oil accumulation conditions and prediction of sweet spots in Ordos Basin: A case study
October 2022
Tight sandstone reservoirs are widely developed in the Mesozoic Yanchang Formation of the Ordos Basin, China. There is a lack of understanding on the sedimentary setting, source-reservoir relationship...
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A new method for predicting injection multiples of extreme displacement in waterflood reservoirs
October 2022
The theoretical relationship between water injection multiple (i.e. injected pore volume) and water saturation is inferred from theoretical concepts of reservoir engineering. A mathematical model based...
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Quality characterization of tight sandstone reservoirs in the Yanchang Formation of the Honghe oilfield, Ordos Basin, central China
October 2022
Reservoir quality is one of the important geological factors controlling the development of tight oil in the Honghe oilfield, Ordos Basin, northwestern China. Analyses of core, well logging, mud logging...
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The effect of thermal fluid derived from mud diapir on sandstone reservoirs in the Yinggehai Basin, South China Sea
October 2022
The underground thermal fluid is one of the significant factors controlling the formation and quality of reservoirs. The Huangliu Formation (N1h) in YF1 area of the central depression belt in the Yinggehai...
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Factors controlling tight oil and gas reservoir development in the Jurassic siliciclastic-carbonate rocks in Sichuan Basin, China
October 2022
The prediction of “sweet spot” of multi-lithology composite tight oil and gas reservoirs within mixed siliciclastic-carbonate sequences is a hot topic in oil and gas exploration. There are mixed lacustrine...
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Advances and challenges in hydraulic fracturing of tight reservoirs: A critical review
October 2022
The hydraulic fracturing technology has been widely utilized to extract tight resources. Hydraulic fracturing involves rock failures, complex fracture generation, proppant transport and fracture closure....
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Callovian-Oxfordian sedimentary microfacies in the middle of Block on the right bank of the Amu Darya Basin, Turkmenistan
Available online 30 September 2022
The right bank of the Amu Darya Basin enjoys abundant natural gas resources, on which the Callovian-Oxfordian strata in the middle of Block B serve as the major horizons for natural gas production....
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