油气地质

鄂尔多斯盆地南部中生界延长组沉积体系与油气富集

  • 李传亮
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  • 1.中国石油长庆油田分公司第二采油厂;2.邢台职业技术学院;3.中国石油长城钻探测试公司
李士春,1973 年生,男,工程师,现主要从事油田开发及管理工作。地址:(745100)甘肃省庆阳市长庆油田分公司第二采油厂。 E-mail:lsc_cq@petrochina.com.cn

网络出版日期: 2010-06-15

Sedimentary system and hydrocarbon enrichment of Yanchang Formation in southern Ordos Basin

  • LI Chuanliang
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  • 1.No.2 Oil Production Plant,Changqing Oilfield Company,PetroChina,Qingyang745100,China; 2.XingtaiPolytechnic College,Xingtai 054035,China;3.Well TestingCompany.Great WallDrilling & Exploration En~needng Corp.Ltd.,PetroChina,Beijing 100101,China

Online published: 2010-06-15

摘要

通过鄂尔多斯盆地南部中生界延长组层序地层分析,将延长组划分为5个长期旋回,22个中期旋回 在层序地层格架控制下,研究了鄂尔多斯盆地南部沉积体系及其砂体展布特征。研究区发育北东、南西2大物源体系,其中北东物源(强势物源),为曲流河三角洲沉积体系,提供了富县一旬邑一宜君地区的沉积。发育2~3支分流河道砂体;南西物源为辫状河三角洲沉积体系,提供了陇东地区和镇泾地区沉积,发育4~5支分支河道砂体,纵向上具有良好的继承性。西南部砂体主要发育于长8油层组,东北部砂体主要发育于长6、长2+3油层组.东南部水下分流河道砂体与低幅度构造的组合区成为油气的有利聚集区。

本文引用格式

李传亮 . 鄂尔多斯盆地南部中生界延长组沉积体系与油气富集[J]. 岩性油气藏, 2010 , 22(2) : 79 -83 . DOI: 10.3969/j.issn.1673-8926.2010.02.014

Abstract

Based on the analysis of hish resolution sequence stratigraphy of Yanchang Formation in southern Ordos Basin,Yanchang Form ation is divided into five long-term cycles and 22 mid-term cycles.The sedimentary system and sand body distribution are studied.There are two provenance systems developed in the northeast and southwest of the study area.The meandering river delta in the northeast deposited in Fuxian-Xunyi-Yijun area,and developed two to three distributary channels.The braided delta in the southwest mainly deposited in Longdong and Zhenjing area,and developed four to five branch channel sand bodies with favorable inherit.The sand bodies in the southwest mainly developed in Chang 8 reservoir,while the sand bodies in the northeast mainly developed in Chang 6 and Chang 2+3 reservoirs.The subaqueous distributary chan nel san d bodies and low—amplitude structures in the southeast are the favorable zones for oil and gas accumulation.

参考文献

[1] 蔺宏斌,姚泾利.鄂尔多斯盆地南部延长组沉积特性与物源探讨fJ].西安石油学院学报,2000,15(5):7—10.
[2]宋凯,吕剑文.杜金良.鄂尔多斯盆地中部上三叠统延长组物源方向分析与三角洲沉积体系[J].古地理学报,2002,4(3):59-66.
[3]武富礼.李文厚.李玉宏.鄂尔多斯盆地上三叠统延长组三角洲沉积及演化[j].古地理学报,2004,6(3):307—315.
[4]魏斌,魏红红.陈全红.鄂尔多斯盆地上三叠统延长组物源分析[J].西北大学学报,2003,33(4):447—450.
[5]杨友运.鄂尔多斯盆地南部延长组沉积体系和层序特征[J].地质通报,2005,24(4):369—372.
[6]李文厚,邵磊,魏红红,等.西北地区湖相浊流沉积[J].西北大学学报,2001,31(1):57—62.
[7]王桂成,马维民,赵虹.鄂尔多斯盆地富县探区三叠系延长组沉积特征[J].西北大学学报,2003,33(5):608—612.
[8]郭艳琴,李文厚 胡友洲.等.陇东地区上三叠统延长组早中期物源分析与沉积体系[J].煤田地质与勘探,2006,34(1):1-4.
[9]张杰,赵玉华.鄂尔多斯盆地三叠系延长组地震层序地层研究[J].岩性油气藏,2007,19(4):71—74
[10]朱小燕,李爱琴,段晓晨,等.镇北油田延长组长3油层组精细地层划分与对比[J].岩性油气藏,2007,19(4):82—86.
[12]内蒙古地质矿产局.内蒙古自治区区域地质志[M].北京:地质出版社.1985.
[13]陕西地质矿产局.陕西省区域地质志[M].北京:地质出版社,1986.
[14]甘肃省地质矿产局.甘肃省区域地质志[M].北京:地质出版社.1985.
[15]宁夏地质矿产局.宁夏回族自治区区域地质志[M].北京:地质出版社.1995.
[16]陈永波,雍学善 刘化清.沉积体系域控制下的岩性油气藏预测方法研究及应用— — 以鄂尔多斯盆地北部中生界延长组岩性油气藏为例[J].岩性油气藏,2007,19(2):62—66.
[17]赵靖舟,杨县超.武富礼.等.论隆起背景对鄂尔多斯盆地陕北斜坡区三叠系油藏形成和分布的控制作用[J].地质学报,2006,80(5):648—655.
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