| 塔里木盆地顺北地区断溶体地震反射特征与识别 |
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| 引用本文： | 马乃拜,金圣林,杨瑞召,孟令彬,王力,胡永蓁.塔里木盆地顺北地区断溶体地震反射特征与识别[J].石油地球物理勘探,2019,54(2):398-403. |
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| 作者姓名： | 马乃拜 金圣林 杨瑞召 孟令彬 王力 胡永蓁 |
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| 作者单位： | 1. 中国石化西北油田分公司勘探开发研究院, 新疆乌鲁木齐 830011;2. 中国矿业大学(北京)地球科学与测绘工程学院, 北京 100083 |
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| 基金项目： | 国家重点研发计划项目“井—地联合CO2运移及封存监测技术研究及设备研制”（2018YFB0605603）资助。 |
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| 摘 要： | 断溶体为塔里木盆地奥陶系一种重要的碳酸盐岩储集体，是油气勘探开发的重要目标之一。根据断溶体形成机理，结合实际岩石物理参数，设计断溶体正演模型，通过正演模拟得到断溶体地震反射特征。正演结果表明，断溶体以大型走滑断裂为核心，形成“花束”状地震反射；大型走滑断裂处同相轴“错断”，断溶体缝洞型储层表现为单个“串珠”状反射或强、弱“串珠”反射群等特征。正演模拟结果与实际地震资料吻合较好，证明了设计的断溶体模型较为可靠，可以指导地震剖面上断溶体的识别。
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| 关 键 词： | 顺北地区 断溶体 正演模拟 大型走滑断裂 “串珠”状反射 |
| 收稿时间： | 2018-07-27 |
Seismic response characteristics and identification of fault-karst reservoir in Shunbei area,Tarim Basin |
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| MA Naibai,JIN Shenglin,YANG Ruizhao,MENG Lingbin,WANG Li,HU Yongzhen.Seismic response characteristics and identification of fault-karst reservoir in Shunbei area,Tarim Basin[J].Oil Geophysical Prospecting,2019,54(2):398-403. |
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| Authors: | MA Naibai JIN Shenglin YANG Ruizhao MENG Lingbin WANG Li HU Yongzhen |
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| Affiliation: | 1. Research Institute of Exploration and Production, Northwest Oilfield Branch Co., SINOPEC, Urumqi, Xinjiang 830011, China;2. School of Geosciences and Survey Engineering, ChinaUniversity of Mining and Technology(Beijing), Beijing 100083, China |
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| Abstract: | The fault-karst reservoir is a kind of the Ordovician carbonate reservoirs in the Tarim Basin,which is also one of the important targets for the hydrocarbon exploration and development.According to the formation mechanism of fault-karst reservoir combined with real petrophysical parameters,a seismic model of fault-karst reservoir is built,and seismic reflection characteristics of fault-karst reservoir are obtained with seismic forward modeling.The seismic modeling results show that the fault-karst reservoir is centered on large-scale strike-slip faults,forming a bouquet-like seismic reflection.The large-scale strike-slip faults show faulted-fracture on seismic events.Fault-karst fracture-cavity reservoirs show single bead-like reflection,strong or weak bead-like reflection groups.The seismic modeling results agree well with seismic data,which proves that the built fault-karst reservoir model is reliable and can help the identification of fault-karst reservoirs on seismic sections. |
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| Keywords: | Shunbei area fault-karst reservoir forward modeling large-scale strike-slip fault bead-like reflection |
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