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天然气地球科学 ›› 2010, Vol. 21 ›› Issue (1): 42–46.doi: 10.11764/j.issn.1672-1926.2010.01.42

• 天然气地质学 • 上一篇    下一篇

大北气田储层裂缝定量描述

张博, 李江海, 吴世萍, 陈德友, 袁克学, 巴旦   

  1. 1.北京大学地球与空间科学学院,北京 100871;
    2.塔里木油田公司生产运行处监督中心,新疆 库尔勒 841000
  • 收稿日期:2009-06-30 修回日期:2009-08-16 出版日期:2010-02-10 发布日期:2010-02-10
  • 通讯作者: 张博zhang_bo-tlm@petrochina.com.cn E-mail:zhang_bo-tlm@petrochina.com.cn
  • 作者简介:张博 （1966-），男，河北深州人，高级工程师，主要从事致密砂岩裂缝性储层研究.

The Quantitative Description of Tight Sand Reservoir Fissures in Dabei Gas Field

 ZHANG  Bo, LI  Jiang-Hai, WU  Shi-Ping, CHEN  De-You, YUAN  Ke-Xue, BA  Dan   

  1. 1.Institute of Earth and Space Sciences, Peking University, Beijing 100871, China;
    2.The Production Running Department, The Geoglogy Supervisor Center, Tarim Oil Field,Korla 841000,China
  • Received:2009-06-30 Revised:2009-08-16 Online:2010-02-10 Published:2010-02-10

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摘要：

大北气田属于裂缝型致密砂岩储层，裂缝发育程度直接影响了天然气的发现，以及后期产能建设，因而对裂缝的正确描述意义重大。目前一般用裂缝密度描述裂缝的发育程度，但该方法存在着固有的局限性：只能应用于野外露头、岩心和成像测井方面。针对井下裂缝描述，岩心先天具有量少、代表性差的缺陷，而利用成像测井资料解释裂缝，对资料、人员要求高，解释结果随机性相对较大，并且成像测井成本高，资料缺乏。因此，通过实践，在裂缝的研究过程中，引入了分形学的概念。根据分形学的定义，利用常规测井资料，结合大北气田裂缝在常规测井曲线上的反应特征，利用R/S 分析对大北地区目的层段裂缝发育程度进行了定量分析。经钻井、岩心等验证，效果良好，表明在大北气田，应用R/S方法对岩心进行定量描述是一个行之有效的方法。

关键词: 分形学, R/S分析, 大北气田, 裂缝型致密砂岩储层, 常规测井数据

Abstract:

The Dabei gas field as a tight sand reservoir is controlled by the fracture development which directly affects the discovery and deliverability of the natural gas. The appropriate way to describe the fracture is very important. At present, the fracture spacing is a general method to describe the fracture degree, but its shortage is only suitable for the description of outcrop, core and FIM. A few of drill cores and poor representativeness can not illustrate the fracture distribution in well bore. The fracture analysis by image data requires the skillful analyst and the image data, with the random interpreted conclusion, the high expense of the image data, and absence of image data. So, the concept of fractal is proposed in the research of fractured reservoir. According to fractal concept, the data of conventional logging suite were used, in combination with the logging feature of fracture in the Dabei gas field. The fracture in the goal layer of Dabei area is quantitatively described by the method of R/S. The result which was tested by the data of cores and drilling available, suggests that the method of  R/S  is feasible to quantitatively describe the fractures in the Dabei gas field.

Key words: Fractal, R/S analysis, Dabei gas field, Fracture tight sand reservoir, Conventional logging data.

中图分类号: 

  • TE132.1
 
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[1] 孙可欣，李贤庆，魏强，梁万乐，李剑，张光武. 利用流体历史分析技术研究库车坳陷大北气田油气充注史[J]. 天然气地球科学, 2018, 29(9): 1289-1300.
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