基于层次分析法的煤层气钻完井方式优选

Selection of CBM drilling completion methods by hierarchical analysis

付利 申瑞臣 屈平 夏健 杨恒林 韩敬

FU Li SHEN Ruichen QU Ping XIA Jian YANG Henglin HAN Jing

中国石油钻井工程技术研究院，北京　100195 中国石油勘探开发研究院，北京　100083 华北油田公司采油工艺研究院，河北任丘　062552

CNPC Drilling Research Institute, Beijing 100195, China Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China

科学的钻完井方式能够使煤层气得到经济有效的开采，而煤层地质参数则对钻井完井方式的选择起着至关重要的作用。将地质参数分为煤层几何参数与煤层物性参数，利用层次分析法建立了煤层气钻完井方式的层次分析体系结构。通过统计国内外相关文献中各地质参数的出现频次，计算得到各地质参数对钻完井方式选择的影响权重。根据层次分析方法分析的结果结合现场工程实践，得到了不同地质条件下的煤层气钻完井选择方式，并以此对我国沁水盆地晋城地区、鄂尔多斯保德地区、滇东黔西玉舍—米罗地区进行分析，给出了以上地区适用的钻完井方式

Scientific drilling completion method may make coal-bed methane being produced at high efficiency. The coal geologic parameters play an important role in the selection of drilling completion methods. The parameters can be classified into geometric parameters and physical parameters. The hierarchical structure of drilling completion methods is established by hierarchical analysis. the weighting of the parameters on the drilling completion selection is calculated by counting the occurrence frequency of the parameters in literatures at home and abroad. In the basis of hierarchical analysis results and field applications, the different drilling completion methods are obtained in accordance with different geological conditions. the method is applied in Jincheng, Baode block and Yushe-Miluo district, and the drilling completion methods are selected for the zones above.