| 松辽盆地大老爷府油田泉四段三角洲前缘的沉积微相组合及特征 |
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| 关键词:sedimentary microfacies submerged distributary channel delta front Dalaoyefu Oilfield Songliao Basin |
| 基金项目:国际地质对比计划IGCP447项目(编号:SC/GEO/546/447); 科技部国家重点基础研究项目(编号:001CB711002); 国家自然科学基金(编号:40172043,40572073); 中国地质调查局项目(编号:200313000055) |
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| Microfacies Combination and Characteristics of Delta Front within the 4th Member of the Quantou Formation in the Dalaoyefu Oil Field, Southern Songliao Basin |
| The delta front was developed in Early Cretaceous strata of Dalaoyefu area, Songliao basin. This paper has studied the variety of microfacies combination, dominated by the distributary channel and mouth bar, in the delta front depositional system. The microfacies combination can be classified into "distributary channel area", "distributary channel and mouth bar mixed zone" and " mouth bars area". A detailed study of characteristics of the delta front depositional facies shows that the abundant sandbodies can reflect different sedimentary environments. For example, submerged distributary channels are divided into Abandon Type, Integrity Type and Multi-phase Overprint Type, and the mixed-facies combination is identified; The mouth bar can be divided into Complete Mouth Bar and Stack-mouth Bar. This paper has also discussed the formation mechanism and the model for distribution of the microfacies combinations of the reservoirs in delta front. |
| LIU Zi-liang,ZHONG Guo-sheng,LI Xian-gen.2008.Microfacies Combination and Characteristics of Delta Front within the 4th Member of the Quantou Formation in the Dalaoyefu Oil Field, Southern Songliao Basin[J].Acta Geoscientica Sinica,29(2):228-234. |
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