陆相含油气盆地古地貌恢复研究进展  

Study development of palaeogeomorphology reconstructions in continental facies hydrocarbon basin

作　　者：庞军刚[1] 杨友运[1] 李文厚[2] 李玲 文莹 

机构地区：[1]西安石油大学地球科学与工程学院,陕西西安710065 [2]西北大学地质学系,陕西西安710069 [3]长庆油田第七采油厂,陕西西安710021

出　　处：《西安科技大学学报》2013年第4期424-430,共7页Journal of Xi’an University of Science and Technology

基　　金：国家科技重大专项"鄂尔多斯盆地大型低渗透地层油气藏开发示范工程"(2011ZX05044)

摘　　要：古地貌是控制含油气盆地沉积相发育与分布的主要因素,在一定程度上控制着后期油藏的储盖组合,精确的古地貌恢复对油气勘探至关重要,目前已成为国际沉积学领域的研究热点之一,文中选取陆相含油气盆地为分析对象,结合研究实例对古地貌恢复的沉积学、层拉平、高分辨率层序地层学等方法进行了论述,并分断陷湖盆和坳陷湖盆分别论述了古地貌对沉积体系的控制作用,强调了三维建模技术建立古地貌模型的重要性。今后应加强定量研究,且要注意进行古水深校正,完善埋藏史恢复,以此来进行绝对古地貌恢复,提高研究的精度,也应加强高分辨率层序地层学在的古地貌恢复中的作用。Palaeogeomorphology is one of the main factor controlling the sedimentary facies type and its distribution in petroliferous basin, and in certain extent, controlling the reservoir and cap combination. Therefore, accurate palaeogeomorphology reconstructions is vital to petroleum exploration, which becomes a study hotspot in the field of international sedimentology. Continental petroliferous basin was selected as the analysis object in this paper, such methods as sedimentology,layer adequation and high resolution se- quence stratigraphy were summaried combining with study example, and the control of palaeogeomorphol- ogy on sedimentary system was discussed in faulted and depression lake basin, respectively, emphasizing the importance of palaeogeomorphology model reconstructions using 3D reservoir modeling technique. By palaeobathymetric calibration, improving burial history, in order to reconstruct absolute palaeogeomor- phology and improve study accuracy, high resolution sequence stratigraphy should be forther emphasized on the research of palaeogeomorphology reconstructions in the near future.

关 键 词：古地貌恢复 沉积学 层拉平 基准面旋回 沉积体系 

分 类 号：TE122.3[石油与天然气工程—油气勘探]