| 张海,韩华峰,张锦锋,曹磊.靖边韩家沟地区延长组长6储层特征及沉积微相演化[J].矿产勘查,2022,13(1):9-18 |
| 靖边韩家沟地区延长组长6储层特征及沉积微相演化 |
| The characteristics of the types and the evolution of sedimentary microfacies of Chang 6 Formation in Hanjiagou oil area in Jingbian area |
| 投稿时间：2021-04-27 |
| DOI：10.20008/j.kckc.202201002 |
| 中文关键词: 鄂尔多斯盆地 靖边地区 韩家沟油区 长6油层组 三角洲前缘 沉积微相 |
| 英文关键词: Ordos Basin Jingbian area Hanjiagou Oil area Chang 6 Formation delta front microfacies |
| 基金项目: |
|
| 摘要点击次数: 1432 |
| 全文下载次数: 688 |
| 中文摘要: |
| 鄂尔多斯盆地靖边地区韩家沟油区长6油层组储层特征及沉积微相展布和演化规律认识不清,长期制约着该区域的油气勘探开发。根据韩家沟油区长6油层组储层测试、钻井、岩芯、粒度分析以及测井等资料,对研究区储层特征、沉积微相类型、沉积微相展布及演化特征进行了研究分析。研究认为,研究区长6油层组储层孔隙类型主要有4类:残余粒间孔、溶蚀孔、粒内孔及微裂隙。储层微观结构属于小孔-微细喉型,具有低渗、特低渗的特征。三角洲前缘水下分流河道微相最发育,其次为水下分流间湾微相。水下分流河道微相长64至长621沉积时期逐渐增大并达到鼎盛,从长621至长611沉积时期逐渐减小。研究成果可为该地区后续勘探开发工作奠定基础。 |
| 英文摘要: |
| The characteristics of the distribution and the evolution of sedimentary microfacies of Chang 6 Formation are not clear in Hanjiagou oil area in Jingbian area of Ordos Basin,which has long restricted the oil and gas exploration and development in this area.Based on the core data,petrology data,particle size analysis data and well logging data of Chang 6 Formation in Hanjiagou oil area,the sedimentary microfacies types,distribution of sedimentary microfacies and characteristic of evolution of sedimentary microfacies in the study area were studied in combination with the sedimentary microfacies profiles of single and continuous wells and the distribution of sedimentary microfacies.The study indicates that the facies of Chang 6 Formation in the study area are mainly delta front subfacies,and the sedimentary microfacies are mainly subaqueous distributary channel microfacies,subaqueous interdistributary bay microfacies followed below.The subaqueous distributary channel microfacies gradually developed and reached its peak during the deposition period from Chang 64 to Chang 621,and gradually decreased from Chang 621 to Chang 611. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|