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岩溶地貌是岩溶作用与各类地质作用综合作用的结果,不同地貌形态对岩溶储层发育又起着控制作用。以塔里木盆地轮古西地区为例,通过地震层拉平技术恢复了该区的古岩溶地貌,发现研究区岩溶地貌起伏变化很大,自东向西依次发育峰丛洼地、峰林谷地和峰林平原地貌组合。根据测井、钻井、录井等资料对不同地貌区垂向上的岩溶相带进行了划分,并在此基础上,探讨了不同古地貌区岩溶储层的发育特征,结果表明不同古岩溶地貌区、不同岩溶相带中不同类型岩溶储层发育状况存在较大差异,反映了古岩溶地貌明显控制岩溶相带的空间发育,并进一步控制了岩溶的发育。
Karst landform is the result of the combined effect of karstification and various geological functions. Different landform morphologies play a controlling role in the development of karst reservoirs. Taking the Lunxiu-West area of the Tarim basin as an example, the ancient karst landform was restored through seismic leveling technology. The karst topography in the study area was greatly varied. Peak-cluster depressions, Fenglin valley and Fenglin plain developed successively from east to west Landform combinations. The karst facies belts of different geomorphic zones are divided according to logging, drilling and logging data. On the basis of this, the developmental characteristics of karst reservoirs in different paleo-topographic areas are discussed. The results show that different karst facies zones The developmental status of different types of karst reservoirs in different karst facies belt is quite different. It shows that the karst facies obviously controls the spatial development of karst facies and further controls the karst development.