收稿日期: 2009-04-07
修回日期: 2009-06-27
网络出版日期: 2009-08-10
Reservoir Characteristics and Microfacies of Oligocene Member Lingshui Ⅲ, Yacheng13-1 Gasfield
Received date: 2009-04-07
Revised date: 2009-06-27
Online published: 2009-08-10
王香增, 杜海峰 . 崖城13-1气田古近系渐新统陵三段储层特征与沉积微相分析[J]. 天然气地球科学, 2009 , 20(4) : 497 -503 . DOI: 10.11764/j.issn.1672-1926.2009.04.497
The previous studies on reservoir heterogeneity for the Yacheng13-1 gas field are not very convincing; the reserves of some areas are not produced very well; the difference between dynamic and static geological reserves is obvious. Therefore, it is very important to do research on depositional facies and characteristics of the Yacheng13-1 gas field in detail using the well coring, logging data and seismic data adequately, particularly on the major pay zone, the third Member of the Lingshui Formation (Lingshui Ⅲ). Lingshui Ⅲ belongs to marine-shore transitional environment, its depositional facies is braided delta. The main reservoirs are medium\|coarse sandstone and conglomeratic coarse sandstone, and the sedimentary micofacies are distributary channel, mouth bar, and distal bar. The reservoir properties are good and porosity is larger than 10%. The reservoir properties are controlled by microfacies, later compaction, and corrosion.
Key words: Sedimentary microfacies; Physical properties; Braided delta.
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