| 万永平.基于流体包裹体的储层微裂缝研究
—以陕北斜坡上古生界为例[J].地质与勘探,2010,46(4): |
| 基于流体包裹体的储层微裂缝研究
—以陕北斜坡上古生界为例 |
| Fractures of Reservoirs Inferred From Fluid Inclusions: A Case Study On the Upper Paleozoic of Northern Shaanxi Slope |
| 投稿时间：2010-04-28 修订日期：2010-06-17 |
| DOI： |
| 中文关键词: 陕北斜坡 上古生界 微裂缝 流体包裹体 储层 |
| 英文关键词: Northern shannxi slope,upper Paleozoic,fracture,fluid inclusion,reservoir |
| 基金项目:科技部低(超低)渗透油田高效增产改造和提高采收率技术研究与产业规范化项目(编号:2007BAB17B00),延长探区上古生
界储层裂缝预测及评价项目(编号:ycsy2009-A-08)资助 |
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| 中文摘要: |
| [摘要]储层裂缝研究是低渗致密岩性油气藏研究的关键。低孔低渗储层中裂缝的发育不仅成
为油气运移通道,更是储存空间,为研究研究区储层裂缝在天然气成藏过程中的作用及意义,文章从鄂
尔多斯盆地构造背景出发,通过显微构造研究、成岩作用研究及储层微裂缝中的流体包裹体测温研究,
认为研究区上古生界储层微裂缝发育时间晚于压溶作用发生时间,而早于储层最大埋深时间即排烃高
峰期。储层微裂缝的发育为上古生界气藏的成藏提供了必要的运移通道。 |
| 英文摘要: |
| Abstract:Fracture is a vital issue in the research of low-permeability and tight sandstone reservoirs. These fractures can provide channels for oil and
gas migration as well as space for storage. Based on the tectonic setting of the Ordos basin,this paper studies the micro-structure and fluid inclusions in
fractures of reservoirs in northern Shaanxi slope. It is suggested that the time of fracture forming in the upper Paleozoic should be later than that of the pres鄄
sure solution,and earlier than the peak stage of hydrocarbon expulsion during the deepest burial of the reservoirs. The fractures in reservoirs play an impor鄄
tant role in the gas reservoir generation of the upper Paleozoic in the Ordos basin. |
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