基于测井方法的页岩有机碳含量计算.pdf

2015年6月
大庆石油地质与开发
June. 2015
第34卷第3期
Petroleum Geology and Oilfield Development in Daging
Vol 34 No. 3
DOI:10.3969/J.ISSN.1000-3754.2015.03.033
基于测井方法的页岩有机碳含量计算
王建国李忠刚朱智宋磊
(中国石油大学石油丁程学院,北京102249)
摘要:为了更好地评价页岩气有机质丰度,在分析含有机质页岩的测井响应机理、特征及其影响因素的基础上,
以四川盆地某页岩气工区多口井的页岩层有机碳含量计算为例,分析了自然伽马单因素计算模型、岩性密度测
井单因素计算模型和声波电阻率多因素计算模型的优缺点,给出了自然伽马、声波时差和电阻率的多因素计算
模型。计算结果表明,新提出的计算模型具有分析因素多、参数选择合理、计算结果稳定性好、精度高等特点,
为国内其他页岩储层的总有机碳含量评价提供了思路和方法。
关键词:页岩气;有机碳含量;测井解释;多元线性回归;四川盆地
中图分类号:P63
文献标识码:A
文章编号:1000-3754(2015)03-0170-05
CALCULATION OF THE SHALE TOC EXTENTS BASED
ON THE WELL LOGGING METHODS
WANG Jianguo, LI Zhonggang, ZHU Zhi, SONG Lei
(College of Petroleum Engineering, China University of Petroleum, Beijing 102249, China)
Abstract In order to better evaluate the organic matter's abundance in the shale gas, on the bases of the analyses
of the well logging responses, characteristics and their influencing factors for the matter-bearing shale, taking the
history case of the TOC calculation in several shale gas wells of the operational site in Sichuan Basin as example
the merits and dismerits are analyzed for the individual factor calculating models of both natural gamma ray log and
l thologic density logging and moreover the multi-factor caleulating model of acoustic and resistivity loggings, finally
the multi-factor calculating model of the natural gamma ray log, interval transit time and resistivity loggings is pres-
ented. From the viewpoints of the calculated results, the new established model is characterized by analyzing many
factors, rational choosing parameters, much better stability of the calculated results, higher precision and so on
thus the thought and method are provided for the evaluation of the TOC contents in the other shale reservoirs in our
country
Key words: shale gas; TOC content; well logging explanation; multiple linear regression; Sichuan Basin
目前,页岩气的墈探开发已成为石油工业研究级非有机质孔隙、有机质孔隙和徵裂缝。有机质孔
的热点。页岩气储层的储集空间为微米至纳米隙是页岩气赋存的主要场所,有机质孔隙的多少受
收稿日期:2014-04-24改回日期:2014-07-22
基金项目:中国石油大学(北京)科研基金项目(KYJ2012-02-28)
作者简介:王建国,男,1978年生,讲师,从事油气田开发地质的教学、科研工作。
E-mail:wiglww(@hotmail.com