| 水进砂研究进展 |
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| 引用本文： | 张冠杰,方石,张新荣,高先超,沈伟.水进砂研究进展[J].吉林大学学报(地球科学版),2018(3):626-639. |
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| 作者姓名： | 张冠杰 方石 张新荣 高先超 沈伟 |
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| 作者单位： | 吉林大学地球科学学院,长春,130061 |
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| 基金项目： | 国土资源部杰出青年科技人才培养计划项目(201311111)，国家自然科学基金项目(3A414BA74422 |
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| 摘 要： | 水进砂在水进过程中被侵蚀、淘洗、搬运,其沉积特征明显有别于背景砂体,表现出明显的穿时性。水进砂的发现完善了层序地层学理论,同时它在油气储存运移、原油物性预测以及油气勘探开发方面也有重要价值。本文从砂体的性质、来源、所处背景砂体的环境以及发育的构造条件4个方面对水进砂进行了分类,并总结了具代表性的形成机制:地层响应模型、水进型三角洲模型、海侵—海退模型、水动力模型、下切谷模型和潮汐改造的沙脊模型。近年来,相关学者在传统沉积学的基础上,又运用水动力学、遗迹学和不整合面识别等比较独特的方法对水进砂进行了研究。未来水进砂的研究工作将不再局限于海相砂体中,同时将运用更精细的方法对水进砂进行更深入的研究。"
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| 关 键 词： | 水进砂 海侵 特征分类 形成机制 water-transgressive sand transgression classification formation mechanism |
Research Status of Water-Transgressive Sand |
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| Zhang Guanjie,Fang Shi,Zhang Xinrong,Gao Xianchao,Shen Wei.Research Status of Water-Transgressive Sand[J].Journal of Jilin Unviersity:Earth Science Edition,2018(3):626-639. |
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| Authors: | Zhang Guanjie Fang Shi Zhang Xinrong Gao Xianchao Shen Wei |
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| Abstract: | Water-transgressive sand is defined as the rock or unconsolidated sediments,which are eroded,eluted,transported and so on during the process of transgressive,forming the sedimentary characteristics that are obviously different from the background sand bodies in the original sedimentary environment,and shows obvious diachronism.Water-transgressive sand plays an important role in hydrocarbon migration and storage,prediction of crude oil properties,and oil and gas exploration and development.The discovery of water-transgressive sand improves the theory of sequence stratigraphy.The authors classified the water-transgressive sand based on four aspects:the nature of sand body,the source of sand body,the environment of background sand body and the tectonic development conditions,and summarized the representative forming mechanism as follows.:the formation response model,the transgressive delta model,the transgression-regression model,the hydrodynamic model,the incised valley model,and the tidal ridge model.Based on the traditional sedimentology,some scholars have also applied the comparatively unique methods,such as hydrodynamics,ichnology and unconformity recognition,to study the water-transgressive sand in recent years.The future research on water-transgressive sand will no longer be confined to marine sand bodies,more sophisticated methods will be used to conduct a more in-depth study on water-transgressive sand. |
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