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轮南古潜山位于塔里木盆地塔北隆起轮南低凸起中部地区,主要岩溶层位是奥陶系鹰山组与一间房组,轮南古潜山的形成条件和表生岩溶作用时间与中国南方的桂林岩溶存在极其相似之处。本文通过研究轮南地区古风化壳表层岩溶带发育分布特征及其形成影响因素,认为:表层岩溶带主要分布于距古风化面以下0~40m范围内,此带范围内岩溶缝洞系统相对比较发育,岩溶缝洞系统具有一定连通性,属岩溶储层较为发育的部位,岩溶储层有效储集空间主要是溶蚀孔洞、小规模溶洞和溶蚀裂缝;表层岩溶带发育与古岩溶地貌及古水动力条件具有密切关系,岩溶地貌类型或水动力条件不同,表层岩溶带发育厚度、岩溶形态与岩溶缝洞系统发育规模、岩溶缝洞系统充填特征也不同。
The Lunnan ancient buried hill is located in the central part of the southern uplift of Tabei uplift in the Tarim Basin. The main karst layers are the formation conditions of the Ordovician Yingshan Formation and the Yiefang Formation and the Lunnan buried hill and the epikarst time It has very similarities with Guilin Karst in southern China. In this paper, through the study of the distribution and distribution of epikarst karst belt in the ancient weathering crust in Lunnan area, it is concluded that the epikarst zone is mainly distributed within 0 ~ 40m below the paleo-weathering surface. Development and fractured karst cave system, which belongs to the more developed karst reservoirs. The effective reservoir space of karst reservoirs is mainly dissolved vugs, small-scale karst caves and dissolution fractures. The development of epikarst zone is related to paleokarst topography and ancient water The dynamic conditions are closely related. The types of karst topography or hydrodynamic conditions are different. The thickness of karst topography, the karst morphology and the systematic development of karst cave systems are also different.