| 单敬福,路杨,纪友亮.厚层河道砂体储层非均质性研究——以葡萄花油层组PI1—PI4小层为例[J].地质找矿论丛,2007,(2):125-130,151 |
| 厚层河道砂体储层非均质性研究——以葡萄花油层组PI1—PI4小层为例 |
| ANISOTROPY RESEACH ON THE THICK RIVER CHANNEL SAND RESERVOIR-A CASE OF LAYER PI1-PI4 IN PUTAOHUA OIL SET |
| 投稿时间：2006-03-20 修订日期：2006-05-08 |
| DOI：10.6053/j.issn.1001-1412.2007.2. 009 |
| 中文关键词: 储层非均质性 综合系数 夹层频数 |
| 英文关键词:reservoir anisotropy colligation coefficient interlayer frequency |
| 基金项目:大庆油田有限责任公司勘探分公司科研项目(编号:12010022002100330)资助 |
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| 中文摘要: |
| 储层非均质性对油气田的勘探和开发效果影响很大。结合测井资料二次解释的孔隙度(Φ)、泥质含量(Vsh)、粒度中值(Md)、束缚水饱和度(Swi)等资料,借助BP网络对渗透率进行预测。对萨尔图油田中部葡萄花油层组的非均质性进行了定量半定量的研究,认为萨尔图油田中部葡萄花油层组PI2小层层内非均质性最严重,与沉积微相密切相关。单砂层垂向上渗透率的变化以正韵律和复合式韵律为主,局部发育反韵律模式。葡萄花油层组PI1—PI4小层层内非均质性强弱依次为PI2a,PI3,PI2b,PI1,PI4;层间非均质性在PI3和PI4间表现得最强,其他相对要弱;各小层平面非均质性相差无几,整体表现为较强的非均质性。 |
| 英文摘要: |
| The reservoir anisotropy takes a serious effect on the oil-gas field exploitation.By means of BP neural net permeability prediction and combining the secondly interpreted logged porosity(Φ) shale content(Vsh),granularity mean(Md),irreducible water saturation(Swi)and so on the anisotropy at the Putaohua oil set in the middle of Sa’ertu oil field is researched quantitatively and semi-quantitatively with a conclusion drawn that serious anisotropy occurs within PI2 layer.The anisotropy is closely related to the micro-sedimentary facies.The permeability is varied upward with dominant positive gradus and compound gradus pattern,and locally counter-gradus pattern.Anisotropy from strong to weak within layer PI1-PI4is in turn PI2a,PI3,PI2b,PI1,PI4.Very strong interspace anisotropy occurs at PI3 and PI4 and it is relatively weak in other layers.The plane heterogeneity of each layer is basically the same and on the whole it is strong. |
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