二流量试气技术研究及应用

中原油田高压低渗透储层续流时间长，采用常规的不稳定试井，只有关井恢复较长时间才能录取到满意的资料，给试井工作带来不利因素。二流量试井不用关井，通过改变产量，录取第一个稳定工作制度到第二个稳定工作制度之间随时间变化的压力数据，从而求得油藏平均地层压力、地层渗透率、表皮系数等参数，与压力恢复试井具有相似的效果，进一步证实了二流量试气资料可以利用现代试井解释软件进行处理分析，降低了气井假压力计算的难度。

The Study and Application of Two-Flow-Rate of Gas Well Testing Technology

The after-flow of high pressure and low permeability reservoirs is very long in Zhongyuan oilfield. K the general pressure transient testing is used, the satisfactory material can be gotten only after long shut-in recover time and it is disadvantage to well testing. Though changing the production and recording the pressure data changing along with the time between the first stable working system and the second one, two-flow-rate well testing can get the average reservoir pressure, permeability and skin coefficient and so on. It can get the same effect with pressure build-up test. The data of two-flow-rate well testing can be disposed and analyzed by modern well testing analysis software. It can reduce the difficulty of the pseudo gas well pressure calculation.