油气地质

鄂尔多斯盆地伊陕斜坡延长组东、西成藏差异

  • 吕栋梁 ,
  • 唐海 ,
  • 吕渐江 ,
  • 马小明 ,
  • 余贝贝 ,
  • 汪全林
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  • 1.中国石油长庆油田分公司勘探开发研究院; 2. 低渗透油气田勘探开发国家工程实验室; 3.中国石油长庆油田分公司油气工艺研究院
王芳,1980 年生,女,硕士,工程师,主要从事油藏评价地质综合研究工作。地址:(710018)陕西省西安市未央区长庆油田兴 隆园小区勘探开发研究院。电话:(029)86592826。E-mail:wangfang_cq@petrochina.com.cn

网络出版日期: 2010-12-15

Reservoir difference between east and west of Yanchang Formation in Yishan Slope, Ordos Basin

  • LV Dongliang ,
  • TANG Hai ,
  • LV Jianjiang ,
  • MA Xiaoming ,
  • YU Beibei ,
  • WANG Quanlin
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  • 1. Research Institute of Petroleum Exploration and Development, Changqing Oilfield Company, PetroChina, Xi’an 710018, China; 2. State Engineering Laboratory for Exploration and Development of Low-Permeability Oil & Gas Field, Xi’an 710018, China; 3. Institute of Oil and Gas Technology, Changqing Oilfield Company, PetroChina, Xi’an 710018, China

Online published: 2010-12-15

摘要

鄂尔多斯盆地伊陕斜坡延长组东、西部油藏分布格局存在较大差异,东部志靖—安塞地区纵向上油藏集中分布于长6 段,平面上长6 油层大面积连片分布;西部姬塬地区具有同一区块垂向上多油层叠合、平面上发育多个独立含油富集区的特点。分析认为,不同的运聚成藏模式导致了2 个地区不同的油藏分布格局,主要表现在以下4 个方面:①沉积规模不同。东部的志靖—安塞地区属于陕北复合三角洲的主体部分,沉积规模大于西部的姬塬地区。②储层物性差异较大。受沉积和成岩作用双重控制,志靖—安塞地区储层物性好于姬塬地区。③主要运移通道不同。志靖—安塞地区的主要运移通道是连通砂体,而姬塬地区主要是微裂缝。④运聚成藏模式不同。东部志靖—安塞地区为连通砂体侧向运移的运聚模式,西部姬塬地区为裂缝垂向多点式充注的运聚模式。明确盆地伊陕斜坡东、西成藏差异,总结石油运聚规律,对于指导盆地石油勘探部署及为勘探决策提供依据等,均具有重要的意义。

本文引用格式

吕栋梁 , 唐海 , 吕渐江 , 马小明 , 余贝贝 , 汪全林 . 鄂尔多斯盆地伊陕斜坡延长组东、西成藏差异[J]. 岩性油气藏, 2010 , 22(4) : 68 -71 . DOI: 10.3969/j.issn.1673-8926.2010.04.012

Abstract

There is biggish difference in the reservoir distribution between the east and west ofYanchang Formation in Yishan Slope, Ordos Basin. In the eastern Zhijing- Ansai area, the reservoir mainly vertically distributed in Chang 6 Formation, and large area distribution in plane, while in the western Jiyuan area, multiple zones overlay in vertical and multiple rich zones developed in horizon in the same block. The analysis result shows that different migration and accumulation model cause the different reservoir distribution, which mainly displays in the following four aspects:①Different sedimentary scale. It is the main body of Shanbei multiple delta in the eastern Zhijing- Ansai area, which is large than that in the western Jiyuan area. ②Different reservoir property under the dual control of deposition and diagenesis. The reservoir property in Zhijing- Ansai area is better than that in Jiyuan area. ③Different migration pathway. The main migration pathway in Zhijing- Ansai area is connected sand body, while it is micro- fracture in Jiyuan area. ④Different migration and accumulation model. It is connected sand body and parallel migration in the eastern Zhijing- Ansai area, while it is fracture and vertical multi- points migration in the western Jiyuan area. The reservoir difference between the east and west of Yishan Slope is defined and the migration and accumulation rule is summed up, which provides significant guidance for exploration and deployment.

参考文献

[1] 杨俊杰.鄂尔多斯盆地构造演化与油气分布规律[M].北京:石油工业出版社,2002:39.
[2] 长庆油田石油地质志编写组.中国石油地质志:卷十二[M].北京:石油工业出版社,1992:242.
[3] 杨华,张文正.论鄂尔多斯盆地长7 段优质油源岩在低渗透油气成藏富集中的主导作用:地质地球化学特征[J].地球化学,2005,34(2):147-154.
[4] 刘勇,金晓辉,雷天成.鄂尔多斯盆地延长组油气初次运移特征[J].西安石油学院学报,1997,12(1):8-11.
[5] 席胜利,刘新社.鄂尔多斯盆地中生界石油二次运移通道研究[J].西北大学学报:自然科学版,2005,35(5):628-632.
[6] 席胜利,刘新社,王涛.鄂尔多斯盆地中生界石油运移特征分析[J].石油实验地质,2004,26(3):49-52.
[7] 杨新生.鄂尔多斯盆地南部侏罗系石油成藏与分布的控制因素[C]∥长庆油田公司勘探开发研究院.鄂尔多斯盆地油气
勘探开发论文集(1990—2000).北京:石油工业出版社,2000:190-198.
[8] 姚泾利,王克,宋江海,等.鄂尔多斯盆地姬塬地区延长组石油运聚规律研究[J].岩性油气藏,2007,19(3):32-37.
[9] 李元昊,张铭记,王秀娟,等.鄂尔多斯盆地西北部上三叠统延长组复合油藏成藏机理[J].岩性油气藏,2010,22(2):32-36.
[10] 杨华,刘显阳,张才利,等.鄂尔多斯盆地三叠系延长组低渗透岩性油藏主控因素及其分布规律[J].岩性油气藏,2007,19(3):1-6.
[11] 张文正,杨华,李剑峰,等.论鄂尔多斯盆地长7 段优质油源岩在低渗透油气成藏富集中的主导作用———强生排烃特征及机理分析[J].石油勘探与开发,2006,33(3):289-293.
[12] 刘化清,袁剑英,李相博,等.鄂尔多斯盆地延长期湖盆演化及其成因分析[J].岩性油气藏,2007,19(1):52-56.
[13] 赵文智,胡树云,汪泽成,等.鄂尔多斯盆地基底断裂在上三叠统延长组石油聚集中的控制作用[J].石油勘探与开发,2003,30(5):1-5.
[14] 梁晓伟,韩永林,王海红,等.鄂尔多斯盆地姬塬地区上三叠统延长组裂缝特征及其地质意义[J].岩性油气藏,2009,21(2):50-52.
[15] 刘新社,席胜利,黄道军,等.鄂尔多斯盆地中生界石油二次运移动力条件[J].石油勘探与开发,2008,35(2):143-147.
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