Results 31 to 40 of about 4,180,288 (152)

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

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

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

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

Study on Sedimentary Macrofacies of Sandy Group V of the Second Section of Qingshankou Formation, Daqingzi Region

open access: yes, 2010
According to the core observation and log facies analysis, in the stage of the sand group V of the second section of Qingshankou formation, it mainly develop the delta of type IV which was proposed by Coleman and Wright and in Daqingzi region ,the delta ...
Jin Liang Zhang   +4 more
core   +2 more sources

Lithofacies and Source Rock Quality of Organic-Rich Shales in the Cretaceous Qingshankou Formation, Songliao Basin, NE China

open access: yes, 2022
The organic-rich shale of the Qingshankou Formation (K2qn) is the most important target in the Songliao Basin. The relationship between lithofacies and source rock quality, however, is still controversial. Core observation, thin section identification, X-
Chang Liu   +10 more
core   +1 more source

MULTIPLE CONTROLLING FACTORS OF THE ENRICHMENT OF ORGANIC MATTER IN THE UPPER CRETACEOUS OIL SHALE SEQUENCES OF THE SONGLIAO BASIN, NE CHINA: IMPLICATIONS FROM GEOCHEMICAL ANALYSES; pp. 142–166 [PDF]

open access: yesOil Shale, 2016
Two oil shale sequences in the Upper Cretaceous Qingshankou and Nenjiang Formations of the Songliao Basin, NE China, representing organic matter (OM)-rich hydrocarbon source rocks, are investigated. According to bulk and inorganic geochemical data, there
YU SONG   +6 more
doaj   +1 more source

Sedimentary Facies Study for IV Sand Group of the Second Member of Qingshankou Formation in Daqingzijing Area

open access: yes, 2010
Sedimentary microfacies of Ⅳ sand group of the second member of Qingshankou formation in Daqingzijing area are interpreted jointly with careful core description, sequence and distribution of sandstone. The area also develops delta.
Jin Liang Zhang, Wei Yan, Cun Lei Lei
core   +1 more source

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