Reconstruction of meandering paleo-channels using dense well data, Daqing Oil Field, Songliao Basin, China

Abstract Reconstructing meandering paleo-channels is attracting global research attention. We implemented a novel method by comprehensively integrating migration models and sedimentary structures. Firstly, the migration architectures of the corresponding characteristics in planform and cross-section...

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Autores principales:	Jing-Fu Shan, Zhi-Peng Lin, Le Chen, Bin Zhang, Shi-Xiang Fang, Xue Yan, Wei Fang, Li-Li Xie, Bo Liu, Le Zhang
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2018
Materias:	Songliao Basin Reconstruction Meandering paleo-channels Meandering rivers Point bar Planform Science Q Petrology QE420-499
Acceso en línea:	https://doaj.org/article/518e473431794df5a05ef69d14035301
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spelling	oai:doaj.org-article:518e473431794df5a05ef69d140353012021-12-02T04:07:10ZReconstruction of meandering paleo-channels using dense well data, Daqing Oil Field, Songliao Basin, China10.1007/s12182-018-0270-x1672-51071995-8226https://doaj.org/article/518e473431794df5a05ef69d140353012018-10-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-018-0270-xhttps://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract Reconstructing meandering paleo-channels is attracting global research attention. We implemented a novel method by comprehensively integrating migration models and sedimentary structures. Firstly, the migration architectures of the corresponding characteristics in planform and cross-sectional models were summarised as expansion, translation, expansion and translation, expansion and downstream rotation, constriction and downstream rotation, and expansion and countercurrent rotation models. Secondly, full continuous core data from 270 dense drilling wells were collected from the Daqing Oil Field in the Songliao Basin, China, providing information on rock textures, sedimentary cycles, and boundary information for the two layers being studied. Through a comprehensive analysis of dense drill cores and logging data, the abandoned channels and the initial and final channel centrelines were identified. Consequently, four profiles, including one longitudinal and three transverse sections, were constructed to reveal the cross-sectional structures and planform migration architecture. Profile interpretation revealed the evolution from the initial channel centreline to the final centreline. Using a method of rational interpolation, we were able to reconstruct the migration architecture of the meandering channels. The results showed that the average ancient bankfull width (W c) was approximately 100 m, a single meandering belt was 800 m, the radius of the curvature was 250 m, the length of the channel bend was 700 m, the average meander wavelength was 1300 m, the sinuosity was 3.0, and the annual average discharge rate was 450 m3/s. Furthermore, we compared the results from empirical equations, which verified that our reconstruction is both feasible and potentially widely applicable.Jing-Fu ShanZhi-Peng LinLe ChenBin ZhangShi-Xiang FangXue YanWei FangLi-Li XieBo LiuLe ZhangKeAi Communications Co., Ltd.articleSongliao BasinReconstructionMeandering paleo-channelsMeandering riversPoint barPlanformScienceQPetrologyQE420-499ENPetroleum Science, Vol 15, Iss 4, Pp 722-743 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Songliao Basin Reconstruction Meandering paleo-channels Meandering rivers Point bar Planform Science Q Petrology QE420-499
spellingShingle	Songliao Basin Reconstruction Meandering paleo-channels Meandering rivers Point bar Planform Science Q Petrology QE420-499 Jing-Fu Shan Zhi-Peng Lin Le Chen Bin Zhang Shi-Xiang Fang Xue Yan Wei Fang Li-Li Xie Bo Liu Le Zhang Reconstruction of meandering paleo-channels using dense well data, Daqing Oil Field, Songliao Basin, China
description	Abstract Reconstructing meandering paleo-channels is attracting global research attention. We implemented a novel method by comprehensively integrating migration models and sedimentary structures. Firstly, the migration architectures of the corresponding characteristics in planform and cross-sectional models were summarised as expansion, translation, expansion and translation, expansion and downstream rotation, constriction and downstream rotation, and expansion and countercurrent rotation models. Secondly, full continuous core data from 270 dense drilling wells were collected from the Daqing Oil Field in the Songliao Basin, China, providing information on rock textures, sedimentary cycles, and boundary information for the two layers being studied. Through a comprehensive analysis of dense drill cores and logging data, the abandoned channels and the initial and final channel centrelines were identified. Consequently, four profiles, including one longitudinal and three transverse sections, were constructed to reveal the cross-sectional structures and planform migration architecture. Profile interpretation revealed the evolution from the initial channel centreline to the final centreline. Using a method of rational interpolation, we were able to reconstruct the migration architecture of the meandering channels. The results showed that the average ancient bankfull width (W c) was approximately 100 m, a single meandering belt was 800 m, the radius of the curvature was 250 m, the length of the channel bend was 700 m, the average meander wavelength was 1300 m, the sinuosity was 3.0, and the annual average discharge rate was 450 m3/s. Furthermore, we compared the results from empirical equations, which verified that our reconstruction is both feasible and potentially widely applicable.
format	article
author	Jing-Fu Shan Zhi-Peng Lin Le Chen Bin Zhang Shi-Xiang Fang Xue Yan Wei Fang Li-Li Xie Bo Liu Le Zhang
author_facet	Jing-Fu Shan Zhi-Peng Lin Le Chen Bin Zhang Shi-Xiang Fang Xue Yan Wei Fang Li-Li Xie Bo Liu Le Zhang
author_sort	Jing-Fu Shan
title	Reconstruction of meandering paleo-channels using dense well data, Daqing Oil Field, Songliao Basin, China
title_short	Reconstruction of meandering paleo-channels using dense well data, Daqing Oil Field, Songliao Basin, China
title_full	Reconstruction of meandering paleo-channels using dense well data, Daqing Oil Field, Songliao Basin, China
title_fullStr	Reconstruction of meandering paleo-channels using dense well data, Daqing Oil Field, Songliao Basin, China
title_full_unstemmed	Reconstruction of meandering paleo-channels using dense well data, Daqing Oil Field, Songliao Basin, China
title_sort	reconstruction of meandering paleo-channels using dense well data, daqing oil field, songliao basin, china
publisher	KeAi Communications Co., Ltd.
publishDate	2018
url	https://doaj.org/article/518e473431794df5a05ef69d14035301
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Reconstruction of meandering paleo-channels using dense well data, Daqing Oil Field, Songliao Basin, China

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