煤层气井产能分级方案研究

煤层气井产能的分级便于煤层气开发管理、产能的调整，对科学地规划煤层气开发方案、调整气井作业动态，以及对煤层气开发的各项作业顺利实施具有重要指导作用。本文在综合考虑了煤层气开发方式、开发阶段以及开发的技术和工艺，按照气井产能的稳定程度、井口压力、产量大小，把地面垂直井分为高产气井、较高产气井、中等产气井和低产气井4类。

Study on CBM Well Capacity Grading Scheme

Capacity-grading of CBM wells is convenient to manage CBM exploitation and regulate capacity, which is of great significance in scientifically planning CBM schemes, regulating operational status of wells and smooth gas exploitation. Based on the analysis on the mode, the phase and the technology of CBM exploitation, surface vertical wells are divided into high capacity well, relatively-high capacity well, moderate capacity well and low capacity well according to the well stability, wellhead pressure and output.