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分析煤层气开发时应该考虑的地质条件,即成藏条件、赋存环境条件及工程力学条件。其中成藏特性取决于煤层气生气条件、储气条件和保存条件;赋存环境主要包括地应力场、地下水压力场以及地下温度场,煤层气的开发也应该考虑开发地区的工程力学条件。
This paper analyzes the geological conditions that should be considered in CBM development, that is, reservoir forming conditions, environmental conditions and engineering mechanics conditions. The reservoir forming characteristics depend on the gas generation conditions, gas storage conditions and storage conditions of CBM gas. The storage environment mainly includes the ground stress field, the groundwater pressure field and the underground temperature field. The CBM development should also consider the engineering mechanics conditions of the developed area.