辽河盆地欧利坨子地区煤层气开发潜力

通过对欧M1井煤层测试结果进行分析，并与中外成功开发的低煤阶煤田的储层特征进行对比，评价了辽河盆地欧利坨子地区的煤层气开发潜力。欧M1井具有含气饱和度高且含气量偏高的优点，具有一定的开发潜力，但埋藏深、地层压力与临界解析压力之差过大又给煤层气开发带来很多困难。针对欧M1井的储层特性及目前开发现状，对其煤层气开发失败的原因进行了分析，并就欧利坨子地区煤层气开发提出了降低开发成本、减少储层污染以及改变储层改造措施等建议。

Development potential of coal-bed gas in Oulituozi area, Liaohe Basin

The development potential of coal-bed gas in Oulituozi area is estimated by analyzing testing result of Ou Ml well, compared with reservoir characteristics of lower - rank coalfields which have been developed successfully in China and foreign countries. The Ou Ml well has considerable development potential for its high gas saturation and high gas content. However, development of coal - bed gas is also difficult because burial depth and the differences between stratum pressure and critical analytic pressure are all large. The reason of the failure of Ou Ml well is analyzed according to its reservoir characteristic and development status,and some suggestions are proposed to decrease development cost, controlling reservoir pollution and changing reservoir reforming measure.