Characteristic of Mesozoic Volcanic Rock and Analysis of Reservoir Controlling Factors in the Honghaoershute Sag of Erlian Basin

详细信息   

• 责任者：Ji Hancheng (College of Geosciences ; China University of Petroleum ; Beijing 102249 ; China) ; Yang Dexiang
• 刊名：Acta Geologica Sinica
• 出版年：2012
• 卷期：86(8)
• 关键词：结晶岩类储集层 ; crystalline reservoirs ; 二连盆地 ; Erlian Basin
• 页码：p.1227-1240
• 图表：6 illus., 2 tables, 32 refs.
• 分类号：1003
• issnNo：ISSN0001-5717
• isbnNo：CN11-1951/P

摘要

Based on core observation, thin section identification and integration of well log and seismic data the Honghaoershute Sag, the distribution pattern of Mesozoic volcanic rock in the Honghaoershute Sag Erlian Basin was distinctly defined. This study proposed that the Mesozoic volcanic rock developed main within the Aershan Formation lower segment, Aershan Formation upper segment and Tengger Formation first segment, and consists of andesite, tuff and volcanic breccia, xplosive facies, effusive eruptive sedimentary facies can be identified, with effusive facies well developed and widely d The Mesozoic volcanic rocks are distributed mainly along faults and superimposed by multip eruptions. Three cycles and fourteen periods of volcanic eruption have been identified. Th porosity is versatile, and stomata and fractures are predominant. Reservoir accumulation is mainly by petrology, lithofacies and tectonic action as well as diagenesis. facies and istributed. le volcanic e reservoir controlled.