油气井防砂效果评价方法体系的研究及应用

Comprehensiveevaluation methodology for sand control effect in oil&gas wells

防砂效果评价是油气井防砂综合决策的重要内容之一,科学客观的效果评价有助于评判防砂措施的成败,总结成功的经验,寻找失败的原因。根据油气井防砂前后的生产状态,分析了防砂措施对油气井生产动态3个方面的作用,提出从挡砂效果、增产效果和改善井底流动条件3个方面评价防砂措施的效果,并提出了评价的具体计算方法和标准。最后综合考虑3个方面的评价结果及其权重系数,得到综合评价结果。建立了一套科学合理的防砂效果综合评价方法体系,使用简单,可操作性强。应用于涩北气田的防砂效果评价,结果客观准确。

Sand control effect evaluation is one of the important works insystemic sand control decision.Accurate evaluation results arehelpful to judge the success or failure of sand control measures. The successful experiences should be summarized and the reasonsfor the failures should be analyzed.Sand control measures affect well performances on formation sand retention,well stimulationsand the improvement of flowing conditions around the wellbore.Considering the well performances before and after the sand control,...