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喷射气举是综合气举采油和射流泵采油的优点而发展起来的一种新的采油工艺。它是在油井最下面的气举阀部位安装一个G/L型射流泵,或在其上部的适当位置(经详细计算确定)再装一个或几个射流泵组合而成。射流泵利用气举采油用的注入气作为动力源。射流泵造成的井底低压使生产压差增大,地层供液量增加,油井增产、生产效率也大大提高。本文较详细地介绍了喷射气举原理和国内外应用情况,并指出喷射气举特别适用于深井、高温升、出砂井、斜井、弯曲井和水平井等特殊井的采油。
Jet gas lift is the combination of gas lift jet pump and the advantages of jet pump and developed a new oil recovery process. It is in the bottom of the well gas lift valve installed a G / L-type jet pump, or in its upper part of the appropriate location (calculated in detail) and then install one or several jet pump combination. Jet pumps use gas lift gas injection as a power source. Bottomhole pressure caused by jet pump to increase production pressure, increase the amount of liquid for formation, oil wells increase production efficiency is also greatly increased. In this paper, the principle of jet airlift and its application at home and abroad are introduced in detail. It is pointed out that air jetting is especially suitable for the production of special wells such as deep well, high temperature rise, sand production well, inclined well, curved well and horizontal well.