收稿日期: 2014-01-10
修回日期: 2014-03-16
网络出版日期: 2014-08-10
基金资助
国家科技重大专项“岩性地层油气藏成藏规律、关键技术及目标评价”(编号：2011ZX05001)资助.
High Resolution Sequence Stratigraphy and Excellent Reservoir Distribution of the Donghe Sandstone Reservoir in Tazhong16 Reservoir
Received date: 2014-01-10
Revised date: 2014-03-16
Online published: 2014-08-10
尹楠鑫,徐怀民，伍轶鸣，刘勇，陈俊舟，韩涛，刘华，尹玉明 . 塔中16油藏东河砂岩段高精度层序地层划分与优质储层预测[J]. 天然气地球科学, 2014 , 25(8) : 1172 -1180 . DOI: 10.11764/j.issn.1672-1926.2014.08.1172
The Donghe sandstone is one of the most important oil-bearing and development formations of Tazhong structural belt,Tarim Basin.In order to reduce water ratio and improve development of Tazhong 16 reservoir,high-resolution sequence stratigraphy,reservoir microfacies,spatial distribution of high-quality reservoir and other reservoir geological characteristics including sandstone geometry and its internal architecture were studied with comprehensive application of core,well logging,3D seismic and production data.Through identification and correlation of sequence boundaries of different orders and analysis on depositional model,high-resolution sequence stratigraphic sketch of the pebbled sandstone interval,the main development of Donghe sandstone was reconstructed,that is,2 parasequence sets and 5 parasequences.According to the analysis of facies signs,the Donghe sandstone of Tazhong 16 reservoir was deposited in a foreshore of an open shore facies environment with sand bars as the most favorable development target.Finally,the vertical stack pattern and lateral junction relationship of the reservoir sandstones,as well as the spatial variation of physical properties were finely depicted,leading to the horizontal distribution of high-quality reservoir,which could provide geological basis for the establishment of secondary development plan and the improvement of the development effectiveness of the Donghe sandstone reservoir.
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