天然气地球科学

• 天然气地质学 • 上一篇    下一篇

准噶尔盆地红山嘴油田红153井区二叠系夏子街组砂砾岩储层特征及影响因素

杨志冬   

  1. 1.油气藏地质及开发工程国家重点实验室·西南石油大学,四川 成都 610500;
    2.中国石油天然气股份有限公司新疆油田分公司采油一厂,新疆 克拉玛依 834000
  • 收稿日期:2017-07-12 修回日期:2017-11-26 出版日期:2017-12-10 发布日期:2017-12-10
  • 作者简介:杨志冬(1971-),男,湖南宁乡人,高级工程师,在读博士,主要从事油气田开发研究.E-mail:Yangzd688@petrochina.com.cn.
  • 基金资助:
    中国石油新疆油田分公司采油一厂科研项目(编号:XJYT_cyyc_2015_JS_182)资助.

Reservoir characteristics and influencing factors of the Permain Xiazijie Formation sandand gravel reservoir in Red 153 area of the Hongshanzui Oilfield,Junggar Basin

Yang Zhi-dong
 
  

  1. 1.State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,Sichuan 610500,China;
    2.First Oil Plant of Xinjiang Oilfield Company,CNPC,Karamay 834000,China
  • Received:2017-07-12 Revised:2017-11-26 Online:2017-12-10 Published:2017-12-10

摘要: 红153井区是准噶尔盆地红山嘴油田近年来发现的较好的油气富集高产区块之一,特殊的砂砾岩储层特征及控制因素是其高产的主要原因。为阐明红山嘴油田红153井区二叠系夏子街组储层特征及影响因素,应用钻井取心、录井、测井、地震及岩心分析化验等资料,通过储层岩石学特征、沉积作用和成岩作用分析,表明该区岩性主要为砂砾岩,属碎屑岩中最近源的沉积体系,其沉积过程间歇性大、分选性差,岩石颗粒组成可以从巨砾到细砾各种砾级共存,岩石粒度频率呈多峰态,反映了冲积扇砂砾岩储层的特殊性。该区的储集空间类型主要为溶蚀孔及微裂缝,无原生或剩余粒间孔,普遍发育的微裂缝对储层的改善效果明显。研究认为构造作用是影响该区储层特征的主要因素之一,由构造形成的裂缝可显著改善储层孔隙度,并且为后期流体进入和改造储层提供了通道;此外,沉积和成岩作用对该区储层也有很大影响,控制了储层的形成和发育。

关键词: 储层特征, 冲积扇, 砂砾岩, 储集空间, 影响因素

Abstract: In recent years,the Well block Red 153 is one of the most oil-gas-rich and high-yield blocks discovered in Hongshanzui Oilfield,Junggar Basin.The characteristics and controlling factors of special sandstone and conglomerate are the main reasons for its high yield.We utilize coring,well logging,mud logging,seismic,core testing and other data analysis,to analyze reservoir petrologic characteristics,deposition and diagenesis to illustrate the reservoir characteristic of the Permain Xiazijie Formation in the Red 153 area of the Hongshanzui Oilfield and its influence on reservoir physical property,which indicate that the lithology is mainly sand conglomerate.Sand conglomerate is the most recent sedimentary system in clastic rock,whose intermittent during deposition process is maximum and sorting is the worst.The composition of the rocks can coexist from boulder to mud gravels,and the granularity frequency of the rocks is characterized by multi-peak states,which reflect the particularity of alluvial sand and conglomerate reservoir.The reservoir space types of this area are mainly dissolved pore and microcrack pore.It has no primary or residual intergranular pore.The widespread development of microcrack has a significant improvement in the reservoir.In addition,one of the influential factor for this reservoir is tectonism,because cracks formed by tectonism can significantly improve the porosity of reservoir and later provide a channel for fluid getting into the changed reservoir.The influence of deposition and diagenesis on reservoir is also important to the reservoir,which control the formation and development of reservoirs.

Key words: Reservoir characteristics, Alluvial fan, Sand and gravel, Reservoir space, Influencing factors

中图分类号: 

  • TE122.2

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