低渗断决砂岩气田压力恢复曲线分类评价及应用

Classification Evaluation and Application of Pressure Build-up Curves on Low Permeability Sandstone Gas Reservoir

通过对低渗断块砂岩文23气田100多井次复压试井资料的分析与处理，研究了压力恢复曲线类型，弄清了不同类型曲线与其地质特征及井筒条件的内在联系规律，从而根据气井压力恢复曲线形态类型，判断气井储层物性、连通状况、污染程度、井筒条件等特征，为正确制定开发对策及增产措施提供了科学依据，提高了气田的开发水平，并为类似气田的开发提供了有益的经验。

By discussing and disposing pressure accelerating data in Wen 23 sandstone gas reservoir, the paper analyzes some types of pressure accelerating curves, makes clearly the inner laws between geologic structures and well conditions. According to different kinds of pressure accelerating curves of gas wells, the article features of reservoir, continuity, pollution, well structure and so on, preduces scientific accordings for gas reservoir development theory and increase preduction treatment, improves gas reservoir development level and provides benefical reference for likely gas reservoir.