科技导报

准噶尔盆地车排子地区古近系层序地层与岩性圈闭预测

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科技导报 | 研究论文 2011,29(11-11): 27-32

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科技导报 | 研究论文 2011, 29(11-11): 27-32

准噶尔盆地车排子地区古近系层序地层与岩性圈闭预测

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^{杨勇1，陈世悦1，王桂萍2，李玉贤3}

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通讯作者:

杨勇

Sequence Stratigraphy and Prediction of Lithologic Traps of Palaeogene in Chepaizi Area, Junggar Basin

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出版时间: 2011-04-18 doi: 10.3981/j.issn.1000-7857.2011.11.003

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为了探究车排子地区古近系层序地层发育规律和地层展布特征，应用经典层序地层学的原理和方法，通过对地震、钻井、测井和露头资料的综合分析，进行井间对比及井-震结合对比，详细研究了古近系层序的划分及特征。在车排子地区古近系识别出2个三级层序、4个体系域。研究区构造为一大型斜坡，可见小型坡折带，坡折带之下低位体系域发育，低位体系域与水进体系域由首次湖泛面分开，高位体系域不发育或不被识别。低位体系域以发育扇三角洲水下分流河道为特征，而水进体系域以滨浅湖相泥岩和粉砂岩沉积为主。地层发育受物源、古地形、气候和湖平面升降的控制，在研究区首次建立了古近系层序地层格架，并在层序地层格架内对研究区进行有利区带的预测，对车排子地区古近系地层寻找以岩性圈闭为主的非构造油气藏将起重要指导作用。

关键词

层序地层 / 体系域 / 岩性圈闭 / 古近系 / 准噶尔盆地 / 车排子地区

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To study the palaeogene growth and development, and distribution characteristics of sequence stratigraphic bed in Chepaizi area, the sequence stratigraphy is used with a discussion of its principle, method and technology. Based on composite analyses of seismic, drilling, well logging and outcrop data, together with interwell and log-seismic correlations, the palaeogene sequence stratigraphic classification and features are obtained with two third-scale sequences and four system tracts identified. It is shown that the structure of this area assumes a large-scale slope with a small distinct slope break, with the development of a tract of Lowstand systems under the slope break. The tract of Lowstand systems and that of Transgressive systems are divided by first flooding surface. The tract of Highstand systems is undergrown or not identified. From the tract of Lowstand systems develop diffluent rivers of fan delta and barfacies of beach. From the tract of Transgressive systems develop mudstone and siltstone in beach barfacies. Stratigraphic development is controlled by sediment sources, relic landform, climatic conditions and lake level changes. The sequence stratigraphic framework of palaeogene in Chepaizi area is established. Under the sequence stratigraphic framework, favorable sectors of oil and gas bearing are predicted in studied area, which would play an important role in the search of lithologic subtle reservoirs in northwestern margin of Jungger Basin.

Key words

Stratigraphic Sequence / system tract / lithologic trap / palaeogene period / Junggar Basin / Chepaizi area

引用本文

杨勇;陈世悦;王桂萍;李玉贤. 准噶尔盆地车排子地区古近系层序地层与岩性圈闭预测. 科技导报, 2011 , 29 (11-11) : 27 -32 . DOI: 10.3981/j.issn.1000-7857.2011.11.003

. Sequence Stratigraphy and Prediction of Lithologic Traps of Palaeogene in Chepaizi Area, Junggar Basin[J]. Science & Technology Review, 2011 , 29 (11-11) : 27 -32 . DOI: 10.3981/j.issn.1000-7857.2011.11.003

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2011年第29卷第11-11期

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doi: 10.3981/j.issn.1000-7857.2011.11.003

接收时间：2010-10-28
首发时间：2011-04-18
出版时间：2011-04-18

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收稿日期：2010-10-28
修回日期：2011-03-14

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通讯作者:

杨勇

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https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2011.11.003

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2种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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