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在油田开发的钻井、作业、注汽等过程中,由于使用钻井液、压井液及蒸汽吞吐、油层出砂等原因,造成油井近井地带堵塞。强负压复合解堵属机械解堵方式,对油层不产生任何伤害,地面无需配置附加设备。该技术既能解除油井近井地带的堵塞,同时具有导流的作用,投入成本低,能恢复油(水)井生产能力,此技术在欢西油田应用后效果显著。
During drilling, operation and steam injection in oilfield development, the well near wellbore is blocked due to the use of drilling fluid, killing fluid and steam stimulation, sand production and other reasons. Strong negative pressure solution is a mechanical plugging solution plugging mode, the reservoir does not produce any harm, the ground without the need to configure additional equipment. The technology can not only block the well near the wellbore, but also has the effect of diversion, low investment cost and recovery of oil (water) well productivity. This technology has obvious effect after applying in Huanxi Oilfield.