罗家寨高含硫气藏相态实验研究

PHASE BEHAVIOR EXPERIMENTS OF LUOJIAZHAI GAS RESERVOIR WITH HIGH SULFUR CONTENT

近年来我国相继发现了一大批高含硫气藏,尤其在四川盆地东北地区。为了研究高含硫气藏的相态特征,文章针对其具体特征,在全国首次建立了测定高含硫气藏相态特征的实验流程和实验方法。通过对罗家寨几口气井的相态研究,得出了这几口井不同的相态特征,并对一些实验现象和实验结果进行了分析。分析结果说明硫在高含硫天然气中的熔点随压力的增大先减小后增大;高含硫气藏流体中硫醇和硫醚在高压时含量的多少是引起高含硫气藏相态不同的根本原因。

A batch of gas reservoirs with high sulfur content is discovered in China recent years, especially in the northeast area of Sichuan basin. To study the phase behavior features of gas reservoirs with high sulfur content, according to the concrete features, the experimental procedure and method are first established in China to survey the phase behavior features of gas reservoirs with high sulfur content. With the phase behavior study of several gas wells in Luojiazhai, the various phase behavior features of ...