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火烧油层表现出复杂渗流特征和明显的区带特性,目前还缺少成熟的火烧油层的燃烧前缘监测方法,根据火烧油层的特征建立了包含已燃烧区和未燃区的燃烧前缘解释模型,进而利用油藏数值模拟方法建立了典型均质油藏火烧油层模型,在此模型上研究了注气井关井后的压力和压力导数变化特征,并把计算和实际燃烧前缘参数进行了对比;最后对辽河油区火烧油层试验区内一口注气井的试井资料进行了解释分析,得出的燃烧前缘距离注气井89m,与生产动态分析结合分析,认为利用注气井试井方法计算火烧油层前缘位置结论可靠,能够准确反映油井生产状况和注气井受效情况.
At present, there is still a lack of mature methods for monitoring the combustion front of the burning oil layer. Based on the characteristics of the burning oil layer, a combustion front interpretation model including the burned area and the unburned area is established. Based on the reservoir numerical simulation method, a typical homogeneous oil reservoir fire oil layer model is established. The pressure and pressure derivatives of the gas well after shut - in are studied. The calculated and actual combustion front parameters are compared. Finally, the well test data of one gas injection well in the test area of the fire burning oil layer in Liaohe Oil Region was interpreted and analyzed, and the leading edge of the combustion was found to be 89m away from the gas injection well. Combined with the production dynamic analysis, it is considered that the well test method of gas injection well The conclusion of the leading edge is reliable and can accurately reflect the production status of well and the performance of gas injection well.