| 松辽盆地西斜坡水动力场与油气的聚集成藏 |
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| 引用本文：康德江,庞雄奇,吕延防,付广.2008.松辽盆地西斜坡水动力场与油气的聚集成藏[J].地球学报,29(2):205-212. |
| DOI：10.3975/cagsb.2008.02.11 |
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| 基金项目:国家“973”重大基础研究项目(编号:2006CB202300) |
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| 中文摘要:本文以松辽盆地西斜坡大量水化学分析数据和钻井、地球化学等资料为基础，利用对水动力场的计算，通过平面和纵向上的研究认为，西斜坡高台子油层和萨尔图油层地层水化学性质和分布特征较为相似，表明两者间应该存在允许地下流体（包括油气）相互连通的窗口，从而导致高台子油层的规模弱于萨尔图油层；研究区内地层水以压实流和渗人流两种为主，由四周向中心交汇，在水动力方面，泥岩层以向上下排出为主，砂岩层则是顺层向上倾方面流动；寻找有利勘探区应以压实流和渗人流的交汇区为主，在其中以高矿化度的浓缩亚区为主要目标，即高台子油层应富裕构造带以南至泰康隆起带中部，萨尔图油层应以齐齐哈尔至平洋地区为下一步的重点考虑对象。 |
| 中文关键词:松辽盆地 水动力 油气聚集 矿化度 勘探有利区 |
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| Hydrodynamic Field and Hydrocarbon Accumulation on the West Slope of the Songliao Basin |
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| Abstract:Based on abundant data of hydrochemical analyses, drillings and geochemical materials and utilizing planar and vertical investigation, in combination with hydrodynamic field calculation, the authors found that the Sartu oil layer and the Gaotazi oil layer are quite comparable to each other in hydrochemical characteristics and distribution.Such comparability shows the probable existence of some windows between the two oil layers, through which the phreatic fluids migrated. This to some extent resulted in the situation that the Gaotaizi oil layer is smaller than the Sartu oil layer in size.Compaction flow and permeable flow constitute the main formation waters on the west slope, and they converge from the outer parts to the center. In hydrodynamics, mudstone expulses the fluid upwards and downwards, whereas sandstone makes the fluid flow upwards along the bedding surface. The favorable exploration positions seem to be areas where compaction flow and permeable flow converge, especially areas with high degrees of mineralization.This paper holds that the areas from the south Fuyu structural belt to the central Taikang uplifted belt for the Gaotaizi oil layer, and from Qiqihar to Pingyang for the Sartu oil layer are ideal targets for further exploration. |
| keywords:Songliao Basin hydropower hydrocarbon accumulation degree of mineralization favorable area for exploration |
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