机井在使用过程中,有时出现泥砂淤积,造成出水量减少,甚至不出水的现象。为此,需要进行清淤。现将双泵清淤法介绍如下:用一台200/40的泥浆泵和一台4进3出的离心泵。泥浆泵用铁管(或胶管)向井内送高压清水,将井底淤积物冲起,由离心泵抽水排除。随着清淤加深,泥浆泵送水管也要逐步加长。直到冲完排净为止。也可用一台4英寸的离心泵用胶管送水,管的下端应 Drilling wells in the use of the process, and sometimes siltation caused silt, resulting in reduced water, or even the phenomenon of water. To do this, it needs to be dredged. Dual dredging method is now introduced as follows: with a 200/40 mud pump and a 4 into 3 out of the centrifugal pump. Mud pump with iron pipe (or hose) to the well to send high-pressure water, the bottom of the mud washed up by the centrifugal pump pumping excluded. As the dredging deepens, the mud pump pipe should be gradually lengthened. Until the end of the net row finished. Can also be a 4-inch centrifugal pump with hose, the bottom of the tube should be