西南石油大学学报(自然科学版) ›› 2008, Vol. 29 ›› Issue (4): 55-59.DOI: 10.3863/j.issn.1000-

• 地质勘探 • 上一篇    下一篇

过套管电阻率测井在克拉玛依低渗储层的应用

徐春华1 侯加根1 赵喜元2 王晓光2 郑胜2   

  1. 1.中国石油大学资源与信息学院,北京 昌平 102249; 2.中国石油新疆油田公司勘探开发研究院,新疆 克拉玛依 834000
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-08-20 发布日期:2008-08-20

THE APPLICATION OF CASED HOLE FORMATION RESISTIVITY LOGGING IN KARAMAY LOWPERMEABLE RESERVOIR

XU Chun-hua1 HOU Jia-gen1 ZHAO Xi-yuan2 WANG Xiao-guang2 ZHENG Sheng2

  

  1. 1.Faculty of Resource and Information Technology,China University of Petroleum,Changping Beijing 102249,China;2.Research Institute of Petroleum Exploration & Development,Xinjiang Oilfield Company,CNPC,Karamay Xinjiang 834000,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-08-20 Published:2008-08-20

摘要:

克拉玛依油田注水开发多年,进行过套管测井的目的是寻找潜力层,为开发调整提供依据。研究了准噶尔盆地西北缘的砾岩和准东彩南砂岩20多口井的测井资料,认为影响CHFR测井质量的主要因素有:测量过程中仪器的振动;固井质量、井筒结蜡、污垢、变形、套管腐蚀等容易造成仪器的供电、测量电极与套管耦合不好;咸水泥浆和注入水矿化度变化的影响;薄层分辨率低、过路油或储层污染的影响等几个主要方面。归纳认为:(1) CHFR测井对均质程度高、渗透性好的油层其解释可靠,反之则差;(2) 测量井段不宜过长,一般不应大于400m,否则电极磨损会影响测井质量。应用表明:尽管CHFR在砾岩油藏的应用还存在一些不足,但在克拉玛依油田的应用是大有前景的。

Abstract:

Karamay Oilfield has been producing many years with water injection,by cased hole formation resistivity logging,the potential netpay reservoirs can be explored,improvement of reservoir recovery put forward.The authors analyze over 20 welllogging data of northwest and east oilfield of Junggar Basin,the main influencing factors of the cased hole formation resistivity logging application include vibrating of instrument while measuring,cementation quality,well bore waxing,case deformed,salinity of mud and injected water,the resolution on thinner layer,reservoir pollution etc..Based on the analysis of the application for lowpermeability sandstone and conglomerate reservoir,the authors give the conclusion,on the one hand,the heterogeneity of reservoir is key factor for evaluation on remaining oil,on the other hand,in general,measured interval should not be more than 400 meters.Although there are some shortness,it is believed that the casd hole formation resistivity logging application is prospective in Karamay Oilfield.

Key words: low permeable reservoir, cased hole formation resistivity logging, depletion index, remaining oil saturation, influencing factor, Junggar Basin 

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