主成分分析法在煤储层评价中的应用——以鹤岗煤矿为例  

Application of Principal Component Analysis in Coal Reservoir Assessment——A Case Study of Hegang Coalfield

作　　者：毛毳[1] 邹文斌 孙世轩 王有智[4] 

机构地区：[1]东北石油大学地球科学学院,黑龙江大庆163318 [2]大庆油田第十采油厂第一油矿地质队,黑龙江大庆163318 [3]中石油煤层气有限责任公司忻州分公司,山西忻州036600 [4]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《中国煤炭地质》2016年第11期15-18,24,共5页Coal Geology of China

基　　金：国家科技重大专项资助项目(2011ZX05014)

摘　　要：煤储层相关参数众多,定量评价储层质量成为必然发展趋势。为了提高煤层气储层评价的工作效率,基于主成分分析方法,选取鹤岗煤田城子河组煤储层11个相关参数,包括兰氏体积、平均孔直径、比表面积、总孔体积、灰分、镜质组、微孔含量、矿物、甲烷含量、割理、视密度,构建主成分变量,简化数据结构,建立有效评价模型。结果表明,提取的三个主成分分别代表孔隙结构、沉积环境和构造作用对煤储层质量影响具有较好的控制作用,而且影响程度依次降低。煤储层评价结果与实际物性情况进行检验,具有较好的符合性。证实主成分分析方法在鹤岗煤田煤储层评价中的实用价值及可行性。The coal reservoir has many related parameters; while to assess reservoir quality quantitatively has become an inevitable trend of development. To improve the efficiency of CBM reservoir assessment, on the basis of principal component analysis, 11 related parameters of the Chengzihe Formation coal reservoir in Hegang coalfield have been selected, including Langmuir volume, average pore throat diameter, specific surface area, total pore volume, contents of ash, vitrinite, micropore, mineral, methane, cleat and apparent density to build principal component variables, simplify data structure, establish effective assessment model. The result has shown that the extracted 3 principal components have respectively represented pore structure, sedimentary environment and tectonism impacts on coal reservoir quality, they have preferable control effect, and impact extents decreasing in turn. Comparing the coal reservoir assessed result with practical physical property can found better conformity between. Thus confirmed the principal component analysis has practical value and feasible in Hegang coalfield coal reservoir assessment.

关 键 词：煤储层 储层评价 评价参数 主成分分析 鹤岗煤田 

分 类 号：TE122.2[石油与天然气工程—油气勘探]