第31卷第2期 2017年4月
地
现
代
质
GEOSCIENCE
塔里木盆地玉北地区埋藏史及热史分析
斌12，汤良杰12，郭颖",2,3，余腾孝4，岳勇4 倪
Vol. 31Na.2 Apr.2017
（1.中国石油大学（北京）油气资源与探测国家重点实验室，北京102249；2.中国石油大学（北京）盆地与油藏研究中心，北京
102249：
3.临沂大学地质与古生物研究所，山东临沂276000；4.中国石化西北油田分公司，新疆乌鲁木齐
830011)
摘要：根据地层分层数据和古热流分析，对塔里木盆地玉北地区的5口代表性钻井进行了埋藏史、热史的模拟与分析探讨了研究区烃源岩的热演化成熟过程，初步划分了烃源岩的成熟阶段和生烃期次。研究结果认为：玉北地区寒武系-泥盆系沉积时期，具有多次沉积埋藏和隆升剥蚀的交替；泥盆系沉积之后，石炭-二叠系呈现沉积埋藏的特征；中生代在玉北地区东部少量沉积三叠系，随后被剥蚀，
而在中西部发生沉积间断；进人新生代，地层持续沉积，且沉积
速率呈现增大趋势。研究区寒武系烃源岩自沉积以来成熟度演化相对连续，奥陶纪时进入生烃门限，成熟时期较早；志留-泥盆纪，受海西早期运动的影响，发生隆升剥蚀作用，烃源岩演化变缓；石炭－-二叠纪受控于区域上持续稳定的地层沉积与广泛发育的火山活动，研究区寒武系烃源岩进人中高成熟阶段；由于喜马拉雅造山运动的远程效应，新
生代研究区持续沉降，形成巨厚沉积，烃源岩成熟度达到高-过成熟，为天然气生成阶段。关键词：玉北地区；烃源岩；埋截史；热史；R。；盆地模拟
中图分类号：TE122.1
文献标志码：A
文章编号：10008527(2017)02035710
Analysis of Burial History and Thermal History in Yubei Area,Tarim Basin
NI Bin'-2, TANG Liangjie'-2, GUO Ying'-2.3, YU Tengxiao', YUE Yong
(1. State Key Laboratory of Petroleum Resources and Prospecting, China Unitersiy of Peroleum, Bejing 102249, China
2. Basin and Resenoir Research Center, Chine Unitersity of Petroleum, Bejing102249, China; 3. Institule of Geology and Paleontology Linyi Unitersity, Linyi, Shandong 276000, China; 4. Northaest Oifield Company, SINOPEC, Urumqi, Xinjiang 830011, China)
Abstract: According to strata division data and the palaeo heat flow analysis, the authors simulated and ana lyzed the burial and thermal histories of 5 representative drillings in Yubei area, Tarim Basin. In this way, the thermal evolution and maturation processes of source rock are discussed and the mature stages of hydrocarbon source rock and hydrocarbon generation period are pointed out preliminarily in the study area. The research re-sults show that the study area experienced several cycles of sedimentary burial, uplift and erosion during the deposition of Cambrian to Devonian. After the sedimentation of Devonian, Carboniferous-Permian layers show characteristics of sedimentary burial. In the Mesozoic, a few Triassic layers, having been eroded in the easterm of Yubei area, appeared sedimentary discontinuity in the central and western regions. In the Cenozoic, the stra ta deposited continuously and the deposition rate presented an increasing trend. In the study area, after the Cambrian hydrocarbon source rock had deposited, the maturity evolution appears relatively successive. Cambri-an source rock came into the oil-generating window in the Ordovician, and the time of the hydrocarbon genera-tion is early. In the Silurian-Devonian, influenced by the Early Hercynian, the strata underwent the uplift and erosion, and the evolution of the source rock was slow. With the stable sedimentary and the active volcano wide ly in Carboniferous-Permian, the source rock entered into the high mature stage. Because of the remote effect of
收稿日期：2016-10-10；改回日期：2016-11-17；责任编辑：孙义梅。
基金项目：国家自然科学基金项目（41572105，41172125）；国家重点基础研究发展计划项目(2012CB214804)；国家科技重大专
项(2011ZX05002-003001)；中国石油化工股份有限公司项目（P14131,P11086）。
作者简介：倪斌，男，硕士研究生，1989年出生，地质工程专业，主要从事油区构造解析工作。Email：nibin0538@163.com。通信作者：汤良杰，男，教授，博士生导师，1957年出生，构造地质学专业，主要从事构造地质学研究工作。
Email: tanglj@ cup. edu. cn。