Results 31 to 40 of about 627 (208)

The methods of fracture prediction based on structural strain analysis and its application

open access: yesDizhi lixue xuebao, 2023
Formation strain can directly affect the generation of structural fractures. According to the magnitude of structural strain, the location and intensity of structural fracture development can be predicted, and the chief fracture development areas in the ...
GAO Chenyang   +5 more
doaj   +1 more source

Geochemical Characteristics of Trace Elements and REEs and their Geological Significance for Uranium Mineralization within the Qianjiadian Sandstone‐Hosted Uranium Deposit, Songliao Basin

open access: yesGeofluids, Volume 2023, Issue 1, 2023., 2023
The Qianjiadian uranium deposit is a typical interstratified oxidized zone sandstone‐hosted uranium deposit hosted in the Upper Cretaceous Yaojia Formation of the southern Songliao Basin. Despite its significance, little research has been conducted on the relationship between trace elements, REEs, and uranium mineralization in this deposit.
Zhaobin Yan   +7 more
wiley   +1 more source

Extremely High Primary Productivity and Organic Matter Enrichment in Lacustrine Sediments: Late Triassic Chang 73 Sub‐Member, Western Ordos Basin

open access: yesGeofluids, Volume 2022, Issue 1, 2022., 2022
The 7th member of the Late Triassic Yanchang Formation is the most important Mesozoic source rocks and shale oil reservoir in the Ordos Basin. The hydrocarbon potential and organic matter enrichment mechanism of this organic‐rich member are questioned because of the high heterogeneity of continental sediments. In particular, the lack of drilling in the
Zhiwei Liao   +7 more
wiley   +1 more source

Stratigraphic characteristics and geological significance of Qingshankou Formation in Songliao Basin

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract The Qingshan Formation is the first large-scale lake invasion in the geologic evolution history of the Songliao Basin, the central depression area of the basin is widely distributed with black mudstone and shale, and the coarse clastic rocks in the western slope area and the northern dumping area are obviously increased, while ...
openaire   +1 more source

Mechanical Properties of Shale‐Reservoir Rocks Based on Stress–Strain Curves and Mineral Content

open access: yesGeofluids, Volume 2022, Issue 1, 2022., 2022
The evaluation of rock mechanic characteristics of shale reservoir is the key for the success of fracturing. Several limitations such as complex lithology can affect the accuracy of the rock mechanic property computation. In this research, the mechanical rock properties of shale reservoirs were analyzed based on experimental tests including shale ...
Wen-Tie Sun   +7 more
wiley   +1 more source

Characteristics and Key Controlling Factors of the Interbedded-Type Shale-Oil Sweet Spots of Qingshankou Formation in Changling Depression

open access: yesEnergies, 2023
Different types of shale-oil sweet spots have developed and are vertically stacked in multiple layers of the Qingshankou Formation in the Changling Depression, southern Songliao Basin.
Liang Yang   +5 more
doaj   +1 more source

Using computer simulation in operating room management: impacts of information quality on process performance [PDF]

open access: yes, 2010
High quality information has a significant impact on improving operation performance and patient satisfaction, as well as resolving patient disputes. Based on the analysis of the perioperative process, information quality is considered as an important ...
Al-Hakim, Latif, Su, Ying
core   +1 more source

Mineral Composition and Full‐Scale Pore Structure of Qianjiadian Sandstone‐Type Uranium Deposits: Application for In Situ Leaching Mining

open access: yesGeofluids, Volume 2022, Issue 1, 2022., 2022
In situ leaching (ISL) is becoming the main mining practice for sandstone‐type uranium deposits in China. The key to ISL technology is to aid the leaching solution in contacting the ore bed over a large range, which will induce a series of chemical reactions to extract uranium; thus, it is essential to thoroughly understand the reservoir physical ...
Qizhi Wang   +13 more
wiley   +1 more source

Study on Micro‐Nano Pore Characteristics and Classification of Tight Sandstone Reservoir Based on Q‐Cluster

open access: yesGeofluids, Volume 2022, Issue 1, 2022., 2022
To realize the quantitative classification and comprehensive evaluation of the tight oil reservoir in the 4th of Quantou Formation in Songliao Basin, the pore structure of tight oil reservoir was quantitatively analyzed. In this study, experiments based on the constant‐speed mercury injection, nuclear magnetic resonance, and micron CT are based on the ...
Jing Ge   +7 more
wiley   +1 more source

Study on the Wettability and Spontaneous Imbibition Characteristics of Lacustrine Shale

open access: yesGeofluids, Volume 2022, Issue 1, 2022., 2022
Wettability plays a significant role in the exploration and development of shale oil. The wettability affects the oil enrichment and restricts the selection of fracturing fluids. Shale is composed of complex minerals and organic matter. The pores composed of inorganic minerals have water wettability, while the pores composed of organic matter show the ...
Haitao Xue   +11 more
wiley   +1 more source

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