气井稳定渗流理论的研究与应用

The research and application of the gas well stable flow

为了解决气井稳定渗流理论对气井稳定试井(亦称产能试井)的影响问题,采用新的气井稳定渗流理论即二次三项式和三次三项式研究气井产能。研究结果表明:在一定条件下,采用该方法可应用二次三项式确定气井的产能方程,该法不仅能确定气井的无阻流量,更重要的是能确定该井的临界产量,从而能更合理的确定该气井的工作制度;用三次三项式建立高压低渗气井产能方程所计算的井底压力、平均地层压力、曲线拟合误差平方和等重要参数均比二项式更精确。该成果为矿场工作人员优选稳定试井资料的处理方法提供了依据。

In order to solve the gas seepage stability of the theory of gas well testing（also known as production well test） on the implications of the introduction of new gas seepage theory that the second three-and three three-type of gas well production capacity.The results show that under certain conditions,the use of this method can be applied to quadratic trinomial equation to determine the capacity of gas wells,the method can not only determine the unimpeded flow of gas,more importantly,is critical to determine the well yield,and thus more reasonable to determine the gas system of work;trinomial with the establishment of three high-pressure low-permeability gas deliverability equation calculated bottom hole pressure,the average reservoir pressure,curve fitting and other important parameters of the squared error is more accurate than the binomial.The results for the stability of mine workers preferred approach to well test data was provided.