准噶尔盆地白家海凸起侏罗系顶部剥蚀厚度恢复  

Restoration of Eroded Thickness of Jurassic Top in Baijiahai Arch in Junggar Basin

作　　者：谭思哲[1,2] 王振奇[1,2] 马志亮[3] 黄芸[3] 吴坚[3] 陈勇[3] 陈扬[3] 

机构地区：[1]长江大学油气资源与勘探技术教育部重点实验室,湖北荆州434023 [2]长江大学地球科学院,湖北荆州434023 [3]中国石油新疆油田分公司勘探开发研究院地球物理研究所,乌鲁木齐830013

出　　处：《新疆石油地质》2010年第1期20-21,32,共3页Xinjiang Petroleum Geology

摘　　要：地层剥蚀厚度的准确恢复对建立沉积盆地原始沉积-构造演化史、热史及油气生、排、运、聚史和定量评价油气资源潜力至关重要。目前,虽有很多传统方法应用于沉积盆地地层剥蚀厚度的恢复,但这些方法都具有局限性。在充分结合白家海凸起构造演化特征的基础上,依据实际地层情况和资料条件,采取一种更新的沉积速率比值法对白家海凸起侏罗系顶部剥蚀厚度进行了恢复。研究认为,白家海凸起石树沟群剥蚀现象普遍,但总的剥蚀量较小,最大剥蚀厚度在彩16井附近,约为280m.Restoration of the exact thickness of eroded strata is important to rebuild the primary sedimentary and structural evolution history, the geothermal history, the history of hydrocarbon generation, expulsion, migration and accumulation, and to evaluate the potential of oil and gas resources accurately. At present, many methods have been employed in the research of the strata denudation in sedimentary basin, but each method has its own limit in application. Based on the tructural evolution research in Baijiahai arch of Junggar basin, according to the practical geological conditions and data, the method of sedimentary ratio is applied to calculate the eroded thickness of top of Cretaceous in the arch. The restoration shows that the erosion exists pervasively in Shishugou group （J2-3sh） with a relatively small intensity. The biggest thickness of erosion is near Well Block Cai-16, with the value of 280 meters.

关 键 词：准噶尔盆地 白家海凸起 侏罗系 剥蚀厚度恢复 沉积速率比值法 

分 类 号：TE111.3[石油与天然气工程—油气勘探]