| 摘要: |
| 综合应用岩心观察、薄片和扫描电镜等储层分析技术，对陈堡油田赤山组砂岩的沉积特征及成岩作用进行研 究。结果表明:研究区岩石学及沉积结构特征、颗粒表面特征,特别是斯托克斯风蚀界面的发现均证实赤山组砂岩 属于风成沉积;风成沙丘沉积具有沉积厚度大、成熟度高、孔隙发育等特点，是油气水的良好储集层;研究区成岩作 用具有弱压实和斯托克斯风蚀界面上下明显不同的胶结特征,界面之上属风成沉积，胶结物呈星点状分布,界面之 下受地下水改造具有水成沉积的特征，胶结物呈嵌晶状分布。 |
| 关键词: 风成砂岩 赤山组 成岩作用特征 斯托克斯面 陈堡油田 |
| DOI：10.3969/j.issn.1673-5005.2010.02.002 |
| 分类号:P581; TE 121.31 |
| 基金项目:国家油气重大专项课题(2009ZX05005MX)3) |
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| Sedimentary and diagenetic characteristics of aeolian sandstones of Chenpu Oilfield in northern Jiangsu and its petroleum searching significance |
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DING Sheng1,LIN Cheng-yan1,MA Bao-jun2,LI Jian3,GAO Jian-gang4,5
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(1. College of Geo-Resources and Information in China University of Petroleum, Dongying 257061, China;2. Zhandong Oil Production Plant of Xinjiang Oilfield，Fukang 831511，China ;3. Geological Scientific Research Institute of Shengli Oilfield，Dongying 257015, China ;4. Institute of Geochemistry in Chinese Academy of Sciences, Guiyang 550002，China ;5. Shengli Oil Production Plant of Shengli Oilfield, Dongying 257501，China)
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| Abstract: |
| By using the reservoir analysis techniques such as core observation，thin section determination and scanning electron microscope ( SEM ) , sedimentary and diagenetic characteristics of sandstones of Chishan group were studied. The lithol-ogical features, sedimentary structure and particle surface characteristics, as well as the discovery of Stokes wind erosion interface all demonstrate that the sandstones of Chishan group were aeolian deposits. The aeolian deposit is characterzed by thick deposit, high maturation, good development of the pores,which is good reservoir of oil-gas. The research area has weak compaction. The cement characteristics of aeolian sandstone above and under the Stokes wind erosion interface are different. Above the interface，the point distributed cements implicate that the sandstone belongs to aeolian deposits，whereas under the interface, sandstones with poikilitic cements are aqueous deposits. |
| Key words: aeolian sandstone Chishan group diagenetic characteristics Stokes interface Chenpu Oilfield |
