松辽盆地东部断陷群层序地层学研究

在松辽盆地东部断陷群层序地层学研究基础上，详细探讨了陆相地层准层序和准层序组、层序界面等层序地层的关键要素的识别方法，并通过钻井层序与地震层序对比、井间钻井层序对比和地震剖面间层序对比等工作将深层地层划分为３ 个超层序和１１ 个层序，建立了本区的层序地层格架， 探讨了层序内密集段和体系域的识别方法。在此基础上识别出５４ 个地层超覆圈闭和３ 套烃源层、４ 套储集层和３ 套盖层， 进一步综合研究认为， 安达—肇州背斜带是最有利的勘探区带。在该区带共钻探井１４ 口，均有良好显示，取得了良好的勘探效果。图１ 表１ 参１０（ 邹冬平摘

Fault basin sequence stratigraphy in eastern part of Songliao basin.

Based on the sequence stratigraphy study of the faulted basins in eastern Songliao, discriminating methods for the key elements of continental sequence stratigraphy, parasequence, parasequence sets and sequence boundary, are discussed in detail. The strata of Songliao fault basins are divided into 3 supersequences and 11 sequences through correlation between the well sequences and the seismic sequences, and a sequence stratigraphic framework for the area is established as well. In addition the characteristics of condensed continental sequence stratigraphic section and systems tract and their identification methods are discussed. Based upon this, 54 stratigraphically overlapping traps, 3 sets of hydrocarbon source rocks, 4 sets of reservoir beds and 3 sets of cap rocks are identified, and further comprehensive study recognizes that Anda Zhaozhou anticlinal belt is the most favorable belt for oil and gas exploration. 14 wells with good oil and gas shows are drilled in this belt, indicating a good explorational result is obtained.