目前,我国油层水力压裂使用最广泛的支撑剂是石英砂,油田里,习惯称其为压裂砂。在压裂砂的生产过程中,原砂必须经过水洗、脱水、烘干和分选等工序。 在大庆和其它一些油田,使用圆盘滤水装置进行原砂脱水工序,不仅生产效率低,而且 At present, the most widely used proppant used in hydraulic fracturing in our country is quartz sand, which is used to call fracturing sand. During the production of fractured sand, the raw sand must be washed, dehydrated, dried and sorted. In Daqing and some other oil fields, the disc dewatering process is carried out using a disc-shaped water filtration device, which not only has low production efficiency but also