Results 21 to 30 of about 1,878,542 (168)

Hydrocarbon Charge History of the Upper Paleozoic, Ordos Basin as Revealed by Fluid Inclusions

open access: yesFrontiers in Physics, 2022
The petrographic characteristics of fluid inclusions of the main gas-bearing intervals of the Upper Paleozoic in the Ordos Basin are analyzed by means of plane-polarized light, fluorescence microscopy, and microthermometry. With the burial history of the
Qing Cao   +4 more
doaj   +1 more source

The CSF accumulator

open access: yesNeurological Research, 2000
The ability of the central nervous system (CNS) to store and release fluid energy plays an important role in both health and disease. The stored fluid energy is the product of the fluid volume and pressure. How changes in CNS fluid (CSF, blood, or extracellular fluid) energy are distributed is determined by the compliance of the fluid containers and ...
Magram, G., Liakos, A. M.
openaire   +3 more sources

Microscopic recognition of micro fossils in carbonate rocks based on convolutional neural network

open access: yesShiyou shiyan dizhi, 2021
The identification of microfossils in carbonate rocks with thin-section observation is of great significance for the study of sedimentary environment, but the traditional method by manual identification is highly experience required and is greatly ...
Xiaolu YU   +4 more
doaj   +1 more source

Numerical Simulation Study of Pore-Throat Evolution of Upper Paleozoic in Ordos Basin, China

open access: yesGeofluids, 2021
The parameters of grain size, contents of silica, kaolinite, hydromica, calcite, and a geological time of tight sandstone reservoirs in Upper Paleozoic in Ordos basin were researched thoroughly, and the impact of the diagenetic evolution process of ...
Qing Cao   +5 more
doaj   +1 more source

TOC interpretation of lithofacies-based categorical regression model: A case study of the Yanchang formation shale in the Ordos basin, NW China

open access: yesFrontiers in Earth Science, 2023
In this paper, taking the shale of Chang 7-Chang 9 oil formation in Yanchang Formation in the southeastern Ordos Basin as an example, through the study of shale heterogeneity characteristics, starting from the preprocessing of supervision data set, a ...
Jintao Yin   +12 more
doaj   +1 more source

Petroleum accumulation: from the continuous to discontinuous

open access: yesPetroleum Research, 2017
Based on the extensive studies of conventional and unconventional hydrocarbon accumulations, the concept, classification and formation as well as distribution of petroleum reservoirs are discussed. The revised concept defined the petroleum reservoir as a
Jingzhou Zhao   +6 more
doaj   +1 more source

Accumulator pricing [PDF]

open access: yes2009 IEEE Symposium on Computational Intelligence for Financial Engineering, 2009
Accumulator is a highly path dependant derivative structure that has been introduced as a retail financial product in recent years and becomes very popular in some Asian cities with its speculative nature. Despite its popularity, its pricing formula is not well known especially when there is a barrier structure.
Lam, K, Yu, PLH, Xin, L
openaire   +2 more sources

Siliceous and calcareous sources in marine high-quality hydrocarbon source rocks: skeleton-wall-shell of organism and their debris

open access: yesShiyou shiyan dizhi
Using techniques such as ultra-microscopic organic petrology, the study explores the relationship between bioclasts such as siliceous and calcareous skeleton-wall-shell organism and high-quality hydrocarbon source rocks in terms of their biomolecular ...
Longfei LU   +5 more
doaj   +1 more source

Characterization of Residual Oil Distribution in Sandstone by NMR: A Microscopic View on Oil Recovery by Miscible CO2 Flooding

open access: yesLithosphere, 2022
Miscible CO2 flooding gains rising popularity due to high displacement efficiency and potential carbon negativity. It is well documented that pore-level heterogeneity is one of the dominant mechanisms responsible for the variation in oil recovery ...
Anlun Wang   +9 more
doaj   +1 more source

Geochemical characteristics and mechanisms of densification of pre-Jurassic crude oil in the Tainan Sag, Turpan-Hami Basin, China

open access: yesUnconventional Resources, 2022
Large volumes of heavy oil were distributed in the pre-Jurassic strata of Tainan sag, Turpan Hami Basin, China. The geochemical characteristics and origins of heavy oil are of great significance to future exploration in the region.
Yaao Chi   +6 more
doaj   +1 more source

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