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现代地质 ›› 2013, Vol. 27 ›› Issue (4): 968-977.

• 地层学 • 上一篇    下一篇

松辽盆地七棵树油田沙河子组层序地层格架与油气的关系

陈贤良1,纪友亮1,樊太亮2,王宏语2,郝悦娟2,聂文彬2,闫宁3(   

  1. (1.中国石油大学 油气资源与探测国家重点实验室,北京102249;2.中国地质大学 能源学院,北京100083;3.中国石化江汉油田分公司 物探研究院,湖北 武汉430035)
  • 出版日期:2013-08-10 发布日期:2013-08-07
  • 作者简介:陈贤良,女,博士研究生,1985年出生,石油地质学专业,主要从事层序地层学和沉积学研究。 Email:chenxianliang1985@163.com。
  • 基金资助:
    中国石油化工股份有限公司东北油气分公司基础研究项目(G1200-09-WT-045)。

Relationship between Sequence Stratigraphic Framework and Petroleum of Shahezi Formation in Qikeshu Oilfield

CHEN Xian-liang1, JI You-liang1, FAN Tai-liang2, WANG Hong-yu2, HAO Yue-juan2, NIE Wen-bin2 ,YAN Ning3   

  1. (1.State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing102249, China; 2. School of Energy Resources, China University of Geosciences, Beijing100083, China; 3.Exploration and Development Research Institute of Jianghan Oilfield Company, SINOPEC, Wuhan,Hubei430035, China)
  • Online:2013-08-10 Published:2013-08-07

摘要: 应用层序地层学和沉积学原理及方法,建立松辽盆地七棵树油田沙河子组层序地层格架,并划分沉积相,识别了沉积相在纵向上的演化规律和横向上的展布特征。同时,在上述研究基础之上分析层序地层格架内砂体的展布特征和油气的分布规律,并预测了研究区岩性油气藏的类型及分布。研究结果表明:沙河子组为一个三级层序,内部可划分出2个四级层序,其整体演化经历了一个由快速退积到缓慢进积的过程。受构造沉降、湖平面变化和沉积物供给的影响,砂体主要发育在四级层序的基准面下降半旋回,是寻找岩性透镜体油气藏和岩性上倾尖灭油气藏的有利部位。

关键词: 层序地层格架, 沙河子组, 七棵树油田

Abstract: On the basis of the sequence stratigraphy and sedimentology, the sequence stratigraphic framework and sedimentary facies of Shahezi Formation in Qikeshu oilfield, Songliao Basin were established, and the distribution characteristics of sandstone and the rules of hydrocarbon accumulation within the sequence stratigraphic framework were analyzed, then the type and distribution of lithologic reservoir were predicted. The results show that Shahezi Formation is a third-order sequence and can be subdivided into two fourth-order sequences, experiencing an evolution process from rapid regression to slow transgression. The development of sand bodies is controlled by the tectonic effect, lake-level change and sediment supply, and the sand bodies mainly grow in the descending base-level cycles of the fourth-order sequence, which are favorable exploration zones for lithologic reservoirs.

Key words: sequence stratigraphic framework, Shahezi Formation, Qikeshu oilfield

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