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天然气地球科学

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南八仙油气田中浅层(N1—N22)油气藏类型研究

颉永琛，关平,戴胜群,杨国军   

  1. 1.北京大学地球与空间科学学院，北京 100871;2.中国石油青海油田分公司，甘肃 敦煌 736202;
     3.长江大学地球科学学院，湖北 荆州 434023
  • 收稿日期:2011-11-19 修回日期:2012-08-10 出版日期:2012-10-10 发布日期:2012-10-10
  • 通讯作者: 颉永琛xieysqh@petrochina.com.cn. E-mail:xieysqh@petrochina.com.cn.
  • 作者简介:颉永琛(1970-)，男，甘肃甘谷人，高级工程师，在读硕士，主要从事油藏地质研究和油田开发管理工作.E-mail:xieysqh@petrochina.com.cn.

Study on Reservoir Types of Medium-shallow Layer（N1—N22） in Nanbaxian Oil-gas Field

XIE Yong-chen,GUAN Ping,DAI Sheng-qun,YANG Guo-jun   

  1. 1.School of Earth and Space Sciences,Peking University,Beijing 100871,China;
    2.PetroChina Qinghai Oilfield Company,Dunhuang 736202,China;3.Yangtze University,Jingzhou 434023,China
  • Received:2011-11-19 Revised:2012-08-10 Online:2012-10-10 Published:2012-10-10

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摘要：

南八仙油气田属于复杂断块型油气田，N1—N22油气藏受构造、断层和岩性等多重因素影响，储层流体性质复杂，存在多套油气水系统，无统一的油气水界面。利用电测资料准确识别油气层的难度大，油气田的开发定位、开发方式难以确定，严重影响了油气田的开发效益。通过综合应用油气藏流体性质、化验分析、高压物性、天然气组分分析、生产井产出物等资料，综合分析判断南八仙N1—N22油气藏类型，以气藏、凝析气藏为主，少量为带油环凝析气藏，并针对不同的油气藏类型，分析了依靠自然能量衰竭开发、注气保压开发和注水开发的可行性，为指导油气藏提高开发效益提供依据。

 

关键词: 南八仙油气田, 油气藏类型, 开发方式

Abstract:

Nanbaxian oil-gas field belongs to complex fault block oil-gas field.The N1—N22  hydrocarbon reservoirs controlled by tectonic,faults,lithology,etc.have complex fluid properties,several sets of oil-gas-water systems,and no united oil-gas-water separating surface.The oil and gas field development efficiency has been seriously affected by the difficulties in reservoir identification through logging data,developing orientation and modes.Through the comprehensive application of reservoir fluid properties test and analysis,high pressure property,natural gas composition analysis,and production output data,it is concluded that  N1—N22  reservoir is dominated by gas and gas condensate reservoirs with small amount of gas condensate reservoirs with oil rings.Feasibility of development of the natural energy failure,gas injection,water injection has been analysed to provide basis for improving development beneficial result.

 

Key words: Nanbaxian oil-gas field, Reservoir types, Developing mode

中图分类号: 

  • TE122

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