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针对压井作业会造成地层损害而降低油井产能以及由此导致修井费用增加的问题，推广应用了ＺＳＸ—１ 型带压检泵装置。装置由油管悬挂密封装置、井下开关、单流泄油器、进油接头、防顶器和加重管等组成，可在套喷生产情况下正常起、下泵，有效地防止井喷，避免油层损害。文南油田３５ 井次的应用表明，这种装置使用效果较好，对稳油控水，保持油井正常生产，提高产能和维持油井潜力起到重要作用，直接经济效益明显，是文明施工作业的理想设备。
In view of the problem that the well killing will cause damage to the well and reduce the production capacity of the well and the consequent increase in workover costs, the ZSX-1 type pump with pressure detection is promoted and applied. The device is composed of tubing hanging sealing device, downhole switch, single-flow oil drain, oil inlet joint, anti-roofing device and weighting pipe. The device can operate normally and down pump under the circumstance of sleeve spray production, effectively prevent blowout and avoid oil layer damage . The application of 35 wells in Wennan Oilfield shows that this device has good effect and plays an important role in controlling water for stabilizing oil, maintaining normal production of oil well, increasing productivity and maintaining potential of oil well. The direct economic benefits are obvious, and it is a civilized construction operation Ideal device.