期刊文献+

煤储层孔隙度的协同模拟 被引量:5

Building porosity model of coalbed using collocated cokriging
下载PDF
导出
摘要 利用灰分与孔隙度具有较好相关性的特点,充分利用灰分提供的信息对孔隙度进行预测.同位协同克里金方法能够协同灰分数据进行孔隙度预测,且具有很高的运算效率.沁水盆地枣园试验区煤储层灰分与孔隙度具有较好的线性关系,在对孔隙度进行预测的过程中,首先建立灰分产率的三维模型,然后采用同位协同克里金方法,以灰分产率为次变量对孔隙度进行模拟,建立三维孔隙度模型.并与未采用协同模拟的孔隙度模型进行了比较,结果表明:利用协同模拟方法能够充分利用灰分产率提供的信息,建立的孔隙度模型更好地反映了孔隙度的分布特征与非均质性. Based on the good relationship between ash content and porosity of coal reservoirs, the porosity distribution can be predicted by using of information provided by ash content. The collocated cokriging is such a method that can simulate porosity distribution integrating ash content data with high efficiency. The analysis of 17 samples from Zaoyuan well pattern of Qinshui basin revealed that there existed a fair linear relation between ash content and porosity, and the porosity decreasing along with the increase in ash content. There are data about ash content for all 13 development wells in Zaoyuan well pattern, but only a few wells have the data about porosity of coalbed. So, firstly built 3D model of coal ash content, then adopting the coal ash content as second variable, built 3D model of porosity of coal reservoir using collocated cokriging method. Furthermore, compared the previous porosity model and the porosity model which is built using ordinary kriging. The result shows that the method of collocated cokriging is better than ordinary kriging at making use of other correlative information, and the 3D porosity model which is built u- sing collocated cokriging can characterize the distribution and heterogeneity of porosity more subtle.
出处 《煤炭学报》 EI CAS CSCD 北大核心 2007年第9期980-983,共4页 Journal of China Coal Society
基金 国家重点基础研究发展计划"973"基金资助项目(2002CB211708) 湖北省教育厅资助项目(Q200612001)
关键词 煤层 孔隙度 协同模拟 灰分 枣园 coalbed porosity collocated cokriging ash content Zaoyuan
  • 相关文献

参考文献10

二级参考文献37

  • 1汪昌贵.多元统计储后预测[J].石油地球物理勘探,1994,29(4):504-511. 被引量:1
  • 2王生维,陈钟惠.煤储层孔隙、裂隙系统研究进展[J].地质科技情报,1995,14(1):53-59. 被引量:36
  • 3庄成三,王培强,肖姹莉,彭勇.用地震资料预测油气的模式识别方法的一些技术问题[J].石油物探,1995,34(3):69-77. 被引量:4
  • 4杨勤勇.地震解释新技术进展.SEG等70届年会论文集[M].北京:石油工业出版社,2002..
  • 5XoⅡoTBB著 宋世钊 王佑安译.煤与瓦斯突出[M].北京:中国工业出版社,1966.27-30.
  • 6蔡世启 李秀富.石油与天然气储量评价方法[M].北京:石油工业出版社,1998.98-99.
  • 7钱凯 赵庆波 汪泽成 等.煤层气甲烷勘探开发理论与实验测试技术[M].北京:石油工业出版社,1997.70.
  • 8戴金星 戚厚发.我国煤层气的气油地球化学特征[M].北京:石油工业出版社,2001..
  • 9范维唐.中国煤矿区甲烷减排展望[A]..第三届国际甲烷及氧化亚氮减排大会论文集[C].,2003..
  • 10韩金炎.数学地质[R].徐州:中国矿业大学院地质系,1985..

共引文献102

同被引文献52

引证文献5

二级引证文献35

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部