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地应力研究结果可为煤层气评价选区提供重要的资料。对于井下某一煤层，通过测试和计算可得到地应力、地层压力、解吸压力以及据以上基础数据而得出的许多推算值。它们构成了一个复杂的力学系统从而影响煤层气的储存和产出。通常对上述数值进行分析时，特别是涉及到不同煤层和不同井的煤层之间的对比时，显得相当麻烦。介绍了一种煤层气井地应力评价图解法，既可对同一井的不同煤层，又可对不同地区不同井的煤层按深度将有关的各项力学参数在图上直观地表示出来，在图上进行煤层间各种数值对比十分方便。对美国、中国的５口代表井进行了作图分析，并结合各煤层的产气量，说明了地应力评价的重要性和作图法评价的有效性。
The results of geostress can provide important information for CBM evaluation and selection. For a certain coal seam, a number of inferred values of in-situ stress, formation pressure, desorption pressure, and the above basic data are available through testing and calculations. They form a complex mechanics system that affects the storage and production of coalbed methane. Often it is troublesome to analyze the above values, especially when it comes to the contrast between coal layers of different and different wells. This paper introduces a graphical method for stress evaluation of coalbed methane wells, which can not only intuitively show the different mechanical parameters related to different depths of coal seams in different wells in the same well, It is very convenient to compare various numerical values of coal seam. Based on the mapping analysis of the five representative wells in the United States and China, the importance of in-situ stress assessment and the validity of the mapping method are illustrated based on the gas production in each coal seam.