鄂尔多斯盆地杭锦旗地区不整合结构类型及运移特征

发布时间：2018-03-16 08:30

  本文选题：运移通道类型　切入点：不整合结构类型　出处：《石油与天然气地质》2016年02期 　论文类型：期刊论文

【摘要】：杭锦旗地区地处鄂尔多斯盆地北部边缘,存在上古生界-下古生界、上古生界-元古生界、上古生界-太古界3个不整合面。根据已钻井测井响应特征以及岩心观察和岩屑录井资料,对研究区不整合空间结构特征进行了详细研究,同时结合不整合面上下岩性结构的输导作用以及气藏分布等因素,分析了不整合结构类型的运移特征,指出了优势运移通道的分布区域。研究表明,杭锦旗地区存在9种不整合结构类型:砂-泥-砂、砂-泥-灰、砂-泥-变、砂-变、砂-灰、泥-泥-砂、泥-泥-灰、泥-泥-变和砂-泥-泥结构类型。同时存在3种运移通道类型:双运移通道Ⅰ型、单运移通道Ⅱ1型和单运移通道Ⅱ2型。双运移通道Ⅰ型是优势运移通道,主要分布在3个区域:最大区域位于中东部,其目标圈闭是断裂南侧的十里加汗东圈闭以及断裂北侧的什股壕圈闭,其次是位于西部的新召东圈闭,东部阿镇圈闭面积最小;十里加汗西圈闭双运移通道相对不发育,有利于天然气就近富集成藏。
[Abstract]:The Hangjinqi area is located in the northern margin of the Ordos Basin. There are Upper Paleozoic and Lower Paleozoic, Upper Paleozoic and Proterozoic. Three unconformities from the Upper Paleozoic to the Archaean. Based on the well logging response characteristics, core observation and cuttings logging data, the unconformity spatial structure of the studied area is studied in detail. At the same time, the migration characteristics of unconformity structure and the distribution of gas reservoir are analyzed, and the distribution area of dominant migration channel is pointed out, which is based on the transportation of upper and lower lithologic structure of unconformity surface and the distribution of gas reservoir. There are 9 types of unconformities in Hangjinqi area: sand-mud-sand, sand-mud-ash, sand-mud-change, sand-change, sand-ash, mud-mud-sand, mud-mud-ash, There are three types of migration channels: double migration channel type I, single migration channel type 鈪，

本文编号：1619118