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目前,常用酸化措施提高水平井的产量。水平井酸化作业与垂直井酸化作业的差别很大。在水平井酸化作业中,酸与地层接触面积增大,与酸接触后地层性质很可能发生很大的变化。另外水平井酸化作业的费用高于垂直井。为提高水平井酸化效果,采用与评价垂直井酸化作业相似的方法来评价水平井的酸化作业效果。
At present, common acidification measures are used to increase horizontal well production. Horizontal well acidification operations and vertical well acidification operations vary greatly. In horizontal well acidizing operation, the contact area between acid and formation increases, and the formation properties are likely to change greatly after contact with acid. In addition, horizontal well acidification costs are higher than vertical wells. In order to improve the acidification effect of horizontal wells, a similar method to the evaluation of vertical well acidification was used to evaluate the acidizing effect of horizontal wells.