石油与天然气地质 ›› 2012, Vol. 33 ›› Issue (2): 256-264.doi: 10.11743/ogg20120212

• 储层与层序 • 上一篇    下一篇

低渗透致密砂岩储层成岩相类型及测井识别方法——以鄂尔多斯盆地苏里格气田下石盒子组8段为例

张海涛1,2, 时卓1, 石玉江1,2, 王亮亮3, 贺陆军4   

  1. 1. 中国石油 长庆油田分公司 勘探开发研究院, 陕西 西安 710018;
    2. 低渗透油气田勘探开发国家工程实验室, 陕西 西安 710018;
    3. 中国石油 长庆油田分公司 第四采气厂, 内蒙古 鄂尔多斯 017300;
    4. 中国石油 新疆油田分公司 采气一厂, 新疆 克拉玛依 834000
  • 收稿日期:2011-03-31 修回日期:2012-02-20 出版日期:2012-04-28 发布日期:2012-05-24
  • 基金项目:

    国家科技重大专项(2011ZX05044);中国石油股份有限公司科技重大专项(2010E-2304)。

Diagenetic facies types and logging identification methods for low-permeability tight sandstone reservoirs:a case study on the 8th member of Xiashihezi Formation in Sulige gasfield,Ordos Basin

Zhang Haitao1,2, Shi Zhuo1, Shi Yujiang1,2, Wang Liangliang3, He Lujun4   

  1. 1. Research Institute of Exploration and Development, PetroChina Changqing Oilfield Company, Xi’an, Shaanxi 710018, China;
    2. National Engineering Laboratory for Exploration and Development of Low-permeability Oil & Gas Fields, Xi’an, Shaanxi 710018, China;
    3. The 4th Gas Production Plant, PetroChina Changqing Oilfield Company, Erdos, Inner Mongolian 017300, China;
    4. No.1 Gas Production Plant, PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China
  • Received:2011-03-31 Revised:2012-02-20 Online:2012-04-28 Published:2012-05-24

PDF (PC)

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摘要：

鄂尔多斯盆地苏里格气田是低渗透致密砂岩气藏的典型代表,根据碎屑成分、成岩矿物组合、填隙物成分、成岩作用类型等特征,将苏里格气田盒8段储层划分为粒间孔+火山物质强溶蚀相、晶间孔+火山物质溶蚀相、晶间孔+岩屑溶蚀相、晶间孔+石英加大胶结相、水云母胶结+岩屑微溶蚀相和压实胶结致密成岩相6种成岩相类型,分析了不同成岩作用对测井响应的影响。在此基础上,通过自然伽马、声波时差、密度及深侧向测井等参数与成岩相的对应关系,建立了连续定量识别储层成岩相的方法。利用该方法对Z65井测井资料进行了处理,通过与薄片鉴定及压汞结果对比,验证了方法的准确性。利用单井成岩相判别结果划分苏里格气田盒8段成岩相展布,其中气田中部主要以粒间孔+火山物质强溶蚀相和晶间孔+火山物质溶蚀相为主,是有利的成岩相带。

关键词: 成岩相类型, 测井识别标准, 致密砂岩储层, 苏里格气田, 鄂尔多斯盆地

Abstract:

Sulige gasfield in Ordos Basin is a typical tight gas reservoir.According to clastic constituents,diagenetic mineral assemblage,interstitial matter,and diagenesis types,et al,we identified 6 diagenetic faceis types in the 8th member of Xiashihezi Formation(He8)reservoir of Sulige gas field,including intergranular pore+strong solutional phase of volcanic material,intercrystal pore+solutional phase of volcanic material,intercrystal pore+solutional phase of debirs,intercrystal pore+cementation phase of quartz,hydromica cementation+weak solutional phase of debris and compaction+cementation tight phase.In addition,we analyzed the impacts of different digenesis on log responses.On the basis of these studies,a method for continuously and quantitatively identifying diagenetic facies was established by using gamma ray,interval transit time,density and deep lateral resistivity log data.Logging data of Well Z65 were processed with this method,and a comparison with the thin section data and mercury injection data show that the results are accurate.Based on single well diagenetic facies identification,we defined the diagenetic face distribution in He8 reservoirs of Sulige gasfield.The central part of the gas field is dominated by intergranular pore+strong solutional phase of volcanic material and intercrystal pore+solutional phase of volcanic material,which are the favorable diagenetic faces belts.

Key words: diagenetic facies type, logging identification criterion, tight sand reservoir, Sulige gasfield, Ordos Basin

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