多煤层地区煤层气井合采可行性分析  

Feasibility Analysis of Coalbed Methane Wells Commingling in Multiple Seam Area

作　　者：张馨元[1] 张宏燕[2] 翟文芳[1] 李赫然[2] 许岩炯 

机构地区：[1]河南省地质调查院,河南郑州450001 [2]河南省地质矿产勘查开发局第一地质勘查院,河南郑州450001

出　　处：《资源导刊（地球科技版）》2015年第5期48-50,共3页

摘　　要：黔西多煤层地区煤层层数多、层间距小、含气量高、资源丰度高，煤层气井合层开采潜力大。然而多层合采与单层开采存在很大差异，尤其在黔西地区，发育多层叠置独立含气系统，煤层气成藏背景复杂，层间非均质性强，煤层气井合层排采存在潜在的层间干扰现象，合采产能偏低。以黔西珠藏向斜为研究对象，收集了大量煤田地质勘探资料，结合实验测试分析数据及参数井X1的排采数据，分析了研究区煤层气井合采产能特征，对研究区合采可行性进行了探讨。The coal seam in Western Guizhou is characterized by multiple layers, small layer spacing, gas content high and high CBM abundance. There is a great potential for commingled production of CBM wells. However, there is a great difference between single layer exploitation and commingled production, especially in Western Guizhou where unattached multiple superposed CBM system exists currently and the background of coalbed methane reservoiring is Complicated. For the strong reservoir interlayer heterogeneity, there may be potential interlayer interference during commingled production, which leads to a low productivity. Zhuzang Syncline was regarded as the research object in this paper. Massive information of coal resource geological exploration was collected. With drainage and production data of X1 well of Study area Combined, the Productivity performance of commingled production was analyzed. At last, the feasibility analysis of commingling production of CBM wells in study area was discussed.

关 键 词：多煤层地区 煤层气井 合层排采 产能 

分 类 号：P618.11[天文地球—矿床学]