天然气地球科学 ›› 2007, Vol. 18 ›› Issue (1): 84–88.doi: 10.11764/j.issn.1672-1926.2007.01.84

• 天然气地质学 • 上一篇    下一篇

北部湾盆地涠西南凹陷始新统隐蔽油气藏类型及勘探方向

孙文钊1,2,王传雷1,杨希滨2   

  1. (1.中国地质大学,湖北  武汉 430074; 2.中国海洋石油有限公司湛江分公司,广东 湛江 524057)
  • 收稿日期:2006-09-04 修回日期:2006-12-29 出版日期:2007-02-10 发布日期:2008-06-20
  • 通讯作者: 孙文钊sunwzh@cnooc.c om.cn. E-mail:sunwzh@cnooc.c om.cn.
  • 作者简介:孙文钊(1973-),男,山东临沂人, 在读硕士,主要从事地球物理与油气地质研究工作.
  • 基金资助:

     国家“十·五”攻关项目“南海海域隐蔽油气藏地球物理特征及识别技术研究”(编号:004 BA616A-07-03)资助.

TYPES AND FAVORABLE EXPLORATION AREAS OF EOCENE SUBTLE TRAPS IN WEIXINAN SAG, BBW BASIN

SUN Wen-zhao1,2,WANG Chuan-lei1,YANG Xi-bin2   

  1. (1.China University of Geosciences, Wuhan  430074, China; 2.Zhanjang Branch Company of China National  Offshore Oil Corpora tion, Zhanjiang 524057, China)
  • Received:2006-09-04 Revised:2006-12-29 Online:2007-02-10 Published:2008-06-20

摘要:

南海北部湾盆地涠西南凹陷具有圈闭控制油气分布、储层控制油气富集、储集物性及流体性质控制油气产能的基本特点,因此,不同类型圈闭发育及展布特征,对油气成藏乃至分布均至关重要。指出本区不仅存在不同类型构造圈闭,而且亦在多物源湖盆沉积的始新统流一段2个三级层序内,发育有陡坡(扇)三角洲、缓坡(扇)三角洲、凹中盆底扇或浊积体、(扇)三角洲前端经改造形成的滩坝及低位滨浅湖砂岩超覆等多种类型的隐蔽圈闭,且这些不同类型非构造圈闭与油气运聚成藏条件配置良好,其中,尤以一号断层下降盘和二号断层下降盘中西段发育且易于识别的稳定沉降之缓坡(扇)三角洲、小型陡坡扇三角洲和高位浊积体等勘探潜力最佳。

关键词: 涠西南凹陷, 非构造圈闭特征, 隐蔽油气藏类型, 有利钻探目标, 勘探潜力

Abstract:

In the Weixinan sag, BBW basin, South China Sea, the laws of hydrocarbon migration and accumulation include the following basic characteristics: traps control the hydrocarbon distribution, reservoirs control the hydrocarbon accumulation, and the geophysical property of reservoirs and the property of fluids control the production capability. Therefore the development and distribution of various types of traps are very important for the hydrocarbon pool formation and distribution. Multiple structural traps as well as subtle traps develop in the Weixinan sag. In the Liushgang I Formation of lacustrine facies and multi-provenance, subtle traps of various types develop in two third-order sequences, including (fan)delta on steep slope, (fan) delta on gentle slope, basin fan, turbidite, sandbar formed from restructured delta front, onlap pinchout trap of lowstand sands. These nonstructural traps have good conditions of hydrocarbon migration and accumulation. Among these subtle trap types, (fan) deltas on gentle slope with stablesubsidence rates, small fan deltas on steep slope and highstand turbidites, which mainly locate in the mid-west part of the downthrown blocks of No.1 fault and No.2 fault, are easy to define and favorable for exploration.

Key words: Weixinan sag, Nonstructural trap, Type of subtle trap, Favorable prospects for drilling, Exploration potential

中图分类号: 

  • TE51

[1 ] 杜金虎,易士威,张以明,等.二连盆地隐蔽油藏勘探 [M ].北京:石油 工业出版社,2003:74-85. 
[2]  朱伟林,江文荣.北部湾盆地涠西南凹陷断裂与油气藏 [J ].石油学报,1998,19(3 ):6-10.
[3] 邹才能,池英柳,李明,等.陆相层序地层学分析技术 [M ].北京:石油工业出版社 ,2004:119-135.
[4] Jory A Pacht, Robert E Sheriff, Bob F Perkins, et al. Strati-graphic a nalysis utilizing advanced geophysical,wireline and borehole technology for petr oleum exploration and production [M ]. Earth Enterprie,Inc,1996:241-253. 
[5] 丁卫星,王文军,马英俊,等.北部湾盆地福山凹陷流沙港组含油气系统特征 [J ]. 海洋石油,2003,23(2):1-6.
[6] 古莉,于兴河,万玉金,等.冲积扇相储层沉积微相分析 [J ].天然气地球科学,20 04,15(1):83-86. 
[7]  尹太举,张昌民.层序地层格架内的油气勘探 [J ].天然气地球科学,2005,16(1) :25-30.

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[2] 潘建国;郝 芳;张虎权;卫平生;张景廉. . 花岗岩和火山岩油气藏的形成及其勘探潜力[J]. 天然气地球科学, 2007, 18(3): 380-385.
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