一种快速评价气井井间干扰的方法

A FAST METHOD TO EVALUATE WELL INTERFERENCE OF GAS WELLS

气井间的井间干扰在气藏开发过程中备受关注,传统的测试方法是开展井间干扰试井或全气藏关井测压,对于低渗气藏或者当生产任务极为紧张的时候,这些方法均难以实施。应用Blasingame特征曲线干扰分析理论和灰色关联理论,对样本数量和质量要求不高,能在开井情况下快速评价气井井间干扰。运用此方法对SPC气藏进行井间干扰评价,结果与现场测试十分吻合,从而证实了该方法的准确性。

Well interference has received much concern during the development of gas reservoir.Traditional methods are well testing of well interference or shut-in pressure measuring of whole gas reservoir.But for low-permeability gas reservoirs,or under the condition of urgent production task,these methods are hard to be implemented.With just simple needs for sample amount and quality,the interference analysis and gray correlation theories of Blasingame characteristics curve can be adopted to fast evaluate well interference while well opening.The result of well-interference evaluation for SPC gas reservoir coincides with that of the field testing.Therefore,it proves that this evaluation is accurate.