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| 塔南凹陷下白垩统南屯组砂体展布特征及分散机制 | |
| 引用本文： | 闫磊,刘招君,方石,张革,张君龙,胡菲.塔南凹陷下白垩统南屯组砂体展布特征及分散机制[J].吉林大学学报(地球科学版),2015,45(2):507-517. |
| 作者姓名： | 闫磊 刘招君 方石 张革 张君龙 胡菲 |
| 作者单位： | 1. 中国石油勘探开发研究院, 北京 100083; 2. 吉林大学地球科学学院, 长春 130061; 3. 大庆油田有限责任公司勘探开发研究院, 黑龙江 大庆 163712 |
| 基金项目： | 全国油气资源战略选区项目(2009GYXQ12-04-1);吉林大学创新团队建设项目(201004001) |
| 摘 要： | 通过对研究区下白垩统南屯组沉积时期重矿物组合、砂岩组合和地震反射特征资料的综合研究,确定了沉积物的物源方向和砂体展布特征。研究发现同生断裂组合对砂体起到了分散及阻挡的作用,根据同生断裂的组合以及与砂体的制约关系,划分出掀斜型阶梯状、未掀斜型阶梯状和极性3种类型的控砂断裂组合。并根据物源特征和砂体展布特征,将控砂断裂组合分为"横向砂体"和"纵向砂体"2种砂体展布类型;综合各类断裂组合对砂体的控制作用,总结出"诱导型"和"遏制型"两种控砂机制模式。本次研究对在断陷湖盆开展构造对沉积控制作用及分散机制研究提供一个实例。 |
| 关 键 词： | 塔南凹陷 南屯组 砂体展布特征 控砂断裂 分散机制 砂岩 |
| 收稿时间： | 2014-06-03 |
Sandstone Distribution Characteristics and Dispersal Mechanism of the Lower Cretaceous Nantun Formation,Tanan Depression |
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| Yan Lei , Liu Zhaojun , Fang Shi , Zhang Ge , Zhang Junlong , Hu Fei.Sandstone Distribution Characteristics and Dispersal Mechanism of the Lower Cretaceous Nantun Formation,Tanan Depression[J].Journal of Jilin Unviersity:Earth Science Edition,2015,45(2):507-517. | |
| Authors: | Yan Lei Liu Zhaojun Fang Shi Zhang Ge Zhang Junlong Hu Fei |
| Institution: | 1. Research Institute of Petroleum Exploration & Dvelopment, Petro China, Beijing 100083, China; 2. College of Earth Sciences, Jilin University, Changchun 130061, China; 3. Exploration and Development Research Institute, Daqing Oilfield Company Ltd. Daqing 163712, Heilongjiang, China |
| Abstract: | The source direction and sand distribution characteristics of Nantun Formation are concluded by heavy mineral analysis, isopach maps of sandstone and seismic reflection in Tanan depression.The study result shows that the fault system played a role in scattering and blocking of the sediments.According to the relationship between the fault assemble and sandstone distribution characteristics,the fault assemble can be divided into three types,“tilting ladder type”,“non-tilting ladder type”,and “polar type”.Based on the source and sand distribution characteristics,the fault assemble can be divided into “horizontal sand type”and “vertical sand type”.To integrate the fault assemble control effect on sand distribution, the two models of sand control mechanism can be concluded,“induced model”and “contained model”.This study provides a typical example for the research on the structurally controlled deposition and sand disperse machanism in a rift basin. |
| Keywords: | Tanan depression Nantun Formation sandstone distribution characteristics sand-control fracture dispersal mechanism sandstone |
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