不停产试井技术方法及应用评价——以安塞油田现场应用实践为例

On Well Testing Technology without Shutdown and Its Application Evaluation Based on Field Application in Ansai Oilfield

近年来,安塞油田运用不稳定渗流理论,对本油田的40余口抽油井进行二流量不停产试井进行测试,收到较好的效果。该技术具有测试时间短、工艺简单、操作方便、不停产、产量损失量小,流压可录取,不需动力配合等特点,它所得到的油井油层中深地层压力与关井压力恢复后所得到的地层压力的误差率小于10%,解决了因测压而关井所带来的原油产量损失。不停产二流量试井技术是安塞油田试井技术的有效补充。

In recent years,Ansai Oilfield has tested its over 40 oil wells for second-flow throughput well testing without shutdown using the theory of transient seepage flow and yielded a sound effect.This technology,with the characteristics of a short time for testing,easy operation without shutdown,low loss in production,recordable current pressure and non-dynamic mate,can achieve less than 10 percent error rate between mid-depth formation pressure of oil layer of oil well and the formation pressure after recovery of shut-in pressure,thus resolving the problem of the loss of crude output caused by shut-in pressure measuring.Second-flow throughput well testing technology without shutdown is an effective supplementary for the well testing technology in Ansai Oilfield.