| 乌南油田N_2~1油藏储层非均质性研究 |
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| 引用本文： | 李建明,罗丹,马力宁,屈信忠.乌南油田N_2~1油藏储层非均质性研究[J].长江大学学报,2011(2). |
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| 作者姓名： | 李建明 罗丹 马力宁 屈信忠 |
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| 作者单位： | 长江大学地球科学学院;中石油青海油田分公司; |
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| 摘 要： | 乌南油田N12主要为一套三角洲前缘-滨浅湖亚相的沙泥沉积,储层属于特低孔特低渗储层。利用储层的测井物性解释资料,结合岩心分析资料,对研究区N12储层的层内、层间、平面非均质性进行了研究。研究表明,总体储层非均质性强。层内非均质性与沉积微相密切相关,单砂层垂向上渗透率以正韵律和反韵律为主,夹层多。各沉积微相非均质性强弱依次为:水下分流河道、河口坝、远沙坝-席状沙、坝核、坝缘、沙滩。层间渗透率差别大,Ⅰ、Ⅱ油组非均质性最强,单层层数越多,层间非均质性越强。储层平面非均质性变化受沉积相控制,渗透率平面变化较大,砂体相变较快,连通性较差。
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| 关 键 词： | 乌南油田 N12油藏 储层非均质性 三角洲前缘 滨浅湖 |
Research on N_2~1 Reservoir Heterogeneity in Wunan Oilfield |
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| LI Jian-ming,LUO DanMA li-ning,QU Xin-zhong.Research on N_2~1 Reservoir Heterogeneity in Wunan Oilfield[J].Journal of Yangtze University,2011(2). |
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| Authors: | LI Jian-ming LUO DanMA li-ning QU Xin-zhong |
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| Institution: | LI Jian-ming,LUO Dan(Yangtze University,Jingzhou 434023)MA li-ning,QU Xin-zhong(PetroChina Qinghai Oilfield Company,Dunhuang 736202) |
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| Abstract: | Wunan Oilfield N12 reservoir is mainly of silt deposition of delta front-offshore shallow lacustrine intrafacies,the reservoir has the characteristics of very low porosity and permeability.In this paper,the logging matter interpretation data of reservoirs and the core analysis data are used to investigate the intra-layer,inter-layer,planer heterogeneity of the N12 reservoir.The heterogeneity of intra-layer is closely related to sedimentary micro-facies.Permeability of single sand-layer in the vertical direc... |
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| Keywords: | Wunan Oilfield N12 reservoir reservoir heterogeneity delta front offshore shallow lake |
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