Characteristics of Sedimentary Microfacies of Late Triassic Yanchang Formation in North-Central Ordos Basin

Sedimentary microfacies refer to the smallest unit with unique rock structure, structure, thickness, rhythm, and other sedimentary characteristics and certain plane configuration rules in the subfacies zone. Sedimentary microfacies research is the most basic sedimentary unit formed in the same or ba...

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Main Authors: Jiangwei Wei, Fawang Li, Shikuo Zhang, Hanlie Cheng, Qiang Qin, David Cadasse
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2022/1513503
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author Jiangwei Wei
Fawang Li
Shikuo Zhang
Hanlie Cheng
Qiang Qin
David Cadasse
author_facet Jiangwei Wei
Fawang Li
Shikuo Zhang
Hanlie Cheng
Qiang Qin
David Cadasse
author_sort Jiangwei Wei
collection DOAJ
description Sedimentary microfacies refer to the smallest unit with unique rock structure, structure, thickness, rhythm, and other sedimentary characteristics and certain plane configuration rules in the subfacies zone. Sedimentary microfacies research is the most basic sedimentary unit formed in the same or basically the same sedimentary background. Sedimentary microfacies marks are the key to the division of sedimentary microfacies. If we cannot find effective marks, we cannot correctly divide sedimentary microfacies. These marks are mainly obtained from detailed observation of cores. On the premise of fully understanding the regional tectonic background of the study area, the sedimentary facies and sedimentary subfacies types within the oilfield control range are determined. In this study, the single-well facies and profile facies are deeply analyzed by observing and describing the cores of Chang 2 reservoir group in Huangjialing, north-central Ordos Basin, and comprehensively utilizing the data of coring, logging, and core analysis and testing. The basic sedimentary characteristics, types of sedimentary facies and microfacies, and plane distribution of sedimentary facies in this area are systematically studied. The results show that there are mainly three microfacies: underwater distributary channel, natural dike, and distributary bay. Among them, the microfacies of the underwater natural dike are relatively undeveloped, mainly the microfacies of underwater distributary channel and underwater distributary bay. These studies have important practical significance for the later exploration of oil and gas in Ordos Basin.
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spelling doaj-art-fdaa462e1cf145708c74f511844d83502025-02-03T06:00:55ZengWileyJournal of Chemistry2090-90712022-01-01202210.1155/2022/1513503Characteristics of Sedimentary Microfacies of Late Triassic Yanchang Formation in North-Central Ordos BasinJiangwei Wei0Fawang Li1Shikuo Zhang2Hanlie Cheng3Qiang Qin4David Cadasse5No. 5 Oil Production Plant of Changqing Oilfield CompanyNo. 10 Oil Production Plant of Changqing Oilfield CompanyNo. 10 Oil Production Plant of Changqing Oilfield CompanyCOSL-EXPRO Testing Services (Tianjin) Co. Ltd.COSL-EXPRO Testing Services (Tianjin) Co. Ltd.The King’s SchoolSedimentary microfacies refer to the smallest unit with unique rock structure, structure, thickness, rhythm, and other sedimentary characteristics and certain plane configuration rules in the subfacies zone. Sedimentary microfacies research is the most basic sedimentary unit formed in the same or basically the same sedimentary background. Sedimentary microfacies marks are the key to the division of sedimentary microfacies. If we cannot find effective marks, we cannot correctly divide sedimentary microfacies. These marks are mainly obtained from detailed observation of cores. On the premise of fully understanding the regional tectonic background of the study area, the sedimentary facies and sedimentary subfacies types within the oilfield control range are determined. In this study, the single-well facies and profile facies are deeply analyzed by observing and describing the cores of Chang 2 reservoir group in Huangjialing, north-central Ordos Basin, and comprehensively utilizing the data of coring, logging, and core analysis and testing. The basic sedimentary characteristics, types of sedimentary facies and microfacies, and plane distribution of sedimentary facies in this area are systematically studied. The results show that there are mainly three microfacies: underwater distributary channel, natural dike, and distributary bay. Among them, the microfacies of the underwater natural dike are relatively undeveloped, mainly the microfacies of underwater distributary channel and underwater distributary bay. These studies have important practical significance for the later exploration of oil and gas in Ordos Basin.http://dx.doi.org/10.1155/2022/1513503
spellingShingle Jiangwei Wei
Fawang Li
Shikuo Zhang
Hanlie Cheng
Qiang Qin
David Cadasse
Characteristics of Sedimentary Microfacies of Late Triassic Yanchang Formation in North-Central Ordos Basin
Journal of Chemistry
title Characteristics of Sedimentary Microfacies of Late Triassic Yanchang Formation in North-Central Ordos Basin
title_full Characteristics of Sedimentary Microfacies of Late Triassic Yanchang Formation in North-Central Ordos Basin
title_fullStr Characteristics of Sedimentary Microfacies of Late Triassic Yanchang Formation in North-Central Ordos Basin
title_full_unstemmed Characteristics of Sedimentary Microfacies of Late Triassic Yanchang Formation in North-Central Ordos Basin
title_short Characteristics of Sedimentary Microfacies of Late Triassic Yanchang Formation in North-Central Ordos Basin
title_sort characteristics of sedimentary microfacies of late triassic yanchang formation in north central ordos basin
url http://dx.doi.org/10.1155/2022/1513503
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