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本文探讨了四川地区天然裂缝油、气藏不稳定压力试井中,如何确定流动形态的新方法。应用此方法,可以纠正过去利用霍纳(Horner)方程时,由于不可能完全正确地找出直线段而带来参数计算的错误;也可以纠正以往由于不知流动形态而盲目使用霍纳曲线而带来参数计算的错误;从而对测试层的地质模型有进一步的了解,达到找出相应的参数求解方法的目的。工作的依据是萨里曼(M·Y·Soliman)提出的短暂生产时间的压力恢复试井分析方法。这种方法对裸眼中途测试中尤为有用。
This article explores how to determine the flow pattern in natural fractured oil and gas reservoir instability pressure well test in Sichuan area. This method can be used to correct the Horner equation in the past, because it is impossible to find out the correct straight line segment parameter calculation error; can also be corrected in the past due to unknown flow patterns and the blind use of the Horner curve So as to further understand the geological model of the test layer and achieve the purpose of finding the corresponding parameter solving method. The work is based on pressure recovery well test analysis by M.Y. Soliman for brief production hours. This method is especially useful for naked-eye mid-range testing.