气候变化领域集成服务门户(CCPortal): Seismic geomorphology and sedimentology of a fluvialdominated delta: Implications for the neogene reservoirs; offshore bohai bay basin; China

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DOI	10..1306/0130191522517122
	Seismic geomorphology and sedimentology of a fluvialdominated delta: Implications for the neogene reservoirs; offshore bohai bay basin; China
	Xu S.; Hao F.; Xu C.; Zou H.; Gao B.
发表日期	2019
ISSN	0149-1423
起始页码	2399
结束页码	2420
卷号	103 期号:10
英文摘要	Fluvial-dominated deltas are common along modern and ancient coasts and act as important hydrocarbon reservoirs. In this paper, an integration of high-resolution three-dimensional seismic, well log, and core data are employed to investigate the seismic geomorphology, depositional facies, reservoir types, and controlling factors of fluvial-dominated delta deposition in the lower segment of the Minghuazheng Formation (N1mL), Bohai Bay Basin, China. Three typical seismic facies and seismic geomorphologic units are identified. Seismic facies 1 displays discrete highamplitude reflection and a distinct U-shape incision. In plan form, this seismic facies shows a linear, dendritic, and sinuous morphology with high root-mean-square amplitudes. Seismic facies 2 occurs interspersedwith seismic facies 1 and shows low-frequency and low-amplitude reflection. Seismic facies 3 shows a continuous high-amplitude reflection and uniform sheet-like morphology covering more than 10 km2 (>3.86 mi2). The N1mL was primarily deposited in the upper delta plain, lower delta plain, and delta front environments and is dominated by three major facies types: (1) distributary channel (seismic facies 1), (2) interdistributary bay (seismic facies 2), and (3) sheet sand (seismic facies 3). Among them, the distributary channel sandstones and sheet sandstones are the major reservoirs in the N1mL. Fluvial processes and lake level cycles were important factors in the development and distribution of reservoirs and traps in fluvial-dominated delta systems. Integration of the seismic geomorphology and a modern geomorphology investigation provide an effective way to predict the sandstone reservoirs and traps in fluvial-dominated delta systems. © 2019 American Association of Petroleum Geologists. All rights reserved.
语种	英语
scopus关键词	Deposition; Geomorphology; Landforms; Morphology; Offshore oil well production; Sandstone; Well logging; Controlling factors; Delta deposition; Distributary channels; Geomorphologic units; Hydrocarbon reservoir; Root Mean Square; Sandstone reservoirs; Seismic geomorphology; Seismology; deltaic deposit; deltaic sedimentation; depositional environment; depositional sequence; facies analysis; fluvial geomorphology; lake level; Neogene; reservoir; seismic refraction; Bohai Sea; Bohaiwan Basin; China
来源期刊	AAPG Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/143796
作者单位	Key Laboratory of Tectonics and Petroleum Resources, China University of Geosciences, Ministry of Education, Wuhan, China; School of Geosciences, China University of Petroleum, Qingdao, China; Tianjin Branch, China National Offshore Oil Company, Tianjin, China; State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing, China; Strategic Research Center of Oil and Gas Resources, Ministry of Natural Resources, Beijing, China
推荐引用方式 GB/T 7714	Xu S.,Hao F.,Xu C.,et al. Seismic geomorphology and sedimentology of a fluvialdominated delta: Implications for the neogene reservoirs; offshore bohai bay basin; China[J],2019,103(10).
APA	Xu S.,Hao F.,Xu C.,Zou H.,&Gao B..(2019).Seismic geomorphology and sedimentology of a fluvialdominated delta: Implications for the neogene reservoirs; offshore bohai bay basin; China.AAPG Bulletin,103(10).
MLA	Xu S.,et al."Seismic geomorphology and sedimentology of a fluvialdominated delta: Implications for the neogene reservoirs; offshore bohai bay basin; China".AAPG Bulletin 103.10(2019).