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Studying the Accumulation Characteristics of Crude Oil in an Oil Formation in the Aspect of Predicting the Effectiveness of Crude Oil Exploration.

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Title: Studying the Accumulation Characteristics of Crude Oil in an Oil Formation in the Aspect of Predicting the Effectiveness of Crude Oil Exploration.
Authors: Zhao, Yande1 (AUTHOR) zydlzcu@163.com, Hui, Xiao2 (AUTHOR), Zhang, Zhongyi2 (AUTHOR), Yang, Mingyi2 (AUTHOR), Luo, Anxiang2 (AUTHOR), Guo, Qing1 (AUTHOR)
Source: Chemistry & Technology of Fuels & Oils. Jul2024, Vol. 60 Issue 3, p703-713. 11p.
Subjects: Petroleum, Albite, Petroleum prospecting, Freezing points, Petroleum industry
Abstract: The development of tight oil sandstones in the Extension Formation in the southwestern Ordos Basin and the mode of crude oil migration is a hotspot. A large number of geochemical experiments and computational methods were used to systematically study the crude oil transport characteristics of the Yanchang Formation in the Huaqing area. The results show that four typical types of inclusions are developed in the Yanchang Formation: inclusions in quartz fissures, inclusions in quartz colluvium and large rims, inclusions in calcareous colluvium, and inclusions in sodium feldspar. There are two peaks in the homogenization temperature of the inclusions: 80-100°C and 120-130°C. The Chang 6 and Chang 8 reservoirs in the Huaqing area have experienced the process of densification while forming reservoirs, and the physical properties of the sand body reservoirs during the maximum hydrocarbon discharge period are good, which is an effective channel for oil and gas transportation. The minimum oil column heights for oil and gas transportation in Chang 6 and Chang 8 Members are 7.48m and 15.68m, respectively. Proximity vertical transportation is an important mode of crude oil transportation and aggregation in the Yanchang oil group in the Huaqing area. The physical properties of crude oil in Huaqing area are good, showing low density, low viscosity, low freezing point and good fluidity. The hydrocarbon source rocks of the Chang 7 Member were transported under excess pressure and buoyancy along channels such as cheese root networks, connected sands and microfractures, and thus large composite lithologic reservoirs were formed in the Chang 6 and Chang 8 Members. [ABSTRACT FROM AUTHOR]
Copyright of Chemistry & Technology of Fuels & Oils is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
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  Data: Studying the Accumulation Characteristics of Crude Oil in an Oil Formation in the Aspect of Predicting the Effectiveness of Crude Oil Exploration.
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  Data: <searchLink fieldCode="JN" term="%22Chemistry+%26+Technology+of+Fuels+%26+Oils%22">Chemistry & Technology of Fuels & Oils</searchLink>. Jul2024, Vol. 60 Issue 3, p703-713. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Petroleum%22">Petroleum</searchLink><br /><searchLink fieldCode="DE" term="%22Albite%22">Albite</searchLink><br /><searchLink fieldCode="DE" term="%22Petroleum+prospecting%22">Petroleum prospecting</searchLink><br /><searchLink fieldCode="DE" term="%22Freezing+points%22">Freezing points</searchLink><br /><searchLink fieldCode="DE" term="%22Petroleum+industry%22">Petroleum industry</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The development of tight oil sandstones in the Extension Formation in the southwestern Ordos Basin and the mode of crude oil migration is a hotspot. A large number of geochemical experiments and computational methods were used to systematically study the crude oil transport characteristics of the Yanchang Formation in the Huaqing area. The results show that four typical types of inclusions are developed in the Yanchang Formation: inclusions in quartz fissures, inclusions in quartz colluvium and large rims, inclusions in calcareous colluvium, and inclusions in sodium feldspar. There are two peaks in the homogenization temperature of the inclusions: 80-100°C and 120-130°C. The Chang 6 and Chang 8 reservoirs in the Huaqing area have experienced the process of densification while forming reservoirs, and the physical properties of the sand body reservoirs during the maximum hydrocarbon discharge period are good, which is an effective channel for oil and gas transportation. The minimum oil column heights for oil and gas transportation in Chang 6 and Chang 8 Members are 7.48m and 15.68m, respectively. Proximity vertical transportation is an important mode of crude oil transportation and aggregation in the Yanchang oil group in the Huaqing area. The physical properties of crude oil in Huaqing area are good, showing low density, low viscosity, low freezing point and good fluidity. The hydrocarbon source rocks of the Chang 7 Member were transported under excess pressure and buoyancy along channels such as cheese root networks, connected sands and microfractures, and thus large composite lithologic reservoirs were formed in the Chang 6 and Chang 8 Members. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Chemistry & Technology of Fuels & Oils is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10553-024-01728-4
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        Text: English
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      – SubjectFull: Petroleum prospecting
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      – SubjectFull: Freezing points
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      – TitleFull: Studying the Accumulation Characteristics of Crude Oil in an Oil Formation in the Aspect of Predicting the Effectiveness of Crude Oil Exploration.
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            NameFull: Zhao, Yande
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              Text: Jul2024
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              Y: 2024
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