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The Anatomy of Shallow Water Sandy Braided River Reservoir Architecture
Author(s) -
CHEN Liang,
YIN Taiju,
SU Yangling,
WANG Mengmeng,
SHEN Chunsheng,
LI Menglu
Publication year - 2017
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.13219
Subject(s) - geology , architecture , waves and shallow water , hydrology (agriculture) , water reservoir , geotechnical engineering , geography , petroleum engineering , oceanography , archaeology
Reservoir architecture refers to pattern, scale, direction and overlapping relationship of different levels of architecture units. The research of architecture in fluvial phase began in the 1980s (Miall, 1985). The braided river reservoir makes important role in fluvial, which has been one of the hotspots in the sedimentology at home and abroad. Previous opinions about the braided river are that it mainly composes of sand bars and the bars can be formed by vertical accretion because of the transverse circulation (Smith, 1980). And the foreign scholars proposed eight architecture elements, and summarize twelve deposition models (Miall, 1988). Of course, many domestic scholars make studies on the braided river reservoir architecture and put forward some relevant deposition models on the basic of outcrops and modern sedimentary survey (Cao yaohua et al, 1994; Liao baohua et al, 1998). However as the development of geological study, it is necessary to pay more attention to the subsurface reservoirs. The original method to analyze the sedimentary facies is on the basic of the single profile, which can not clearly make characterization of complex braided river reservoirs. The reservoir analytic hierarchy process (AHP) breaks the former ideal. It is used to describe each level by hierarchical division, to explain the results of the description, to find the regular conclusions, to establish models for different levels, so that different levels of The characteristics are hierarchically normalized in a system to achieve the purpose of prediction. The reservoir hierarchy analysis method is used to analyze the structure of the braided river and the stratigraphic structure of the braided river, which is based on the microfacies and reservoir architecture analysis (Zhang Changmin, 1992). *