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火烧油层法有与蒸汽热来法不同的机理和特点,它作为常规稠油、超稠油开采方法的补充,目前在国内外油田现场正不断得到应用,相应的实验室技术——火烧物理模型及其应用研究也不断加强。除介绍了火烧油层法的机理和特点外,主要介绍火烧物理模拟装置、火烧物理模拟相似准则及三大燃烧参数(燃料生成量,原油的自燃温度,通风强度)和其它物理模拟试验可得到的结果,如火烧经济指标(例如民油比和燃烧率)等。最后,以辽河科尔沁油田庙5块油样的试验为例,说明火烧物理模拟的应用。初步得到庙5块进行大驱的必要工艺设计参数,即原油的自燃温度约为420℃,当通风强度为4m2/(h·m2)时,其燃料生成量大于42.4kg/m3,占储量的百分比大于17%,说明该区块可以进行稳定燃烧,试验的采收率达到了60%。
As a supplement to the conventional heavy oil and heavy oil recovery methods, the fire oil layer method has different mechanism and characteristics from the steam heat method. At present, it has been continuously applied in the field of oil fields at home and abroad. Corresponding laboratory technology - fire physics model And its application research also continues to strengthen. In addition to introducing the mechanism and characteristics of the fire oil layer method, this paper mainly introduces the fire physics simulation device, similarity criterion of fire physics simulation and three major combustion parameters (fuel generation, auto-ignition temperature of crude oil, ventilation intensity) and other physical simulation tests Results, such as economic indicators of fire (such as oil-to-oil ratio and burn rate). Finally, taking the experiment of five oil samples in the Horqin Oil Field Temple in Liaohe as an example, the application of fire physics simulation is illustrated. The preliminary design of the five necessary process parameters for large flooding of the temple was obtained. That is, the auto-ignition temperature of the crude oil is about 420 ℃. When the ventilation intensity is 4m2 / (h · m2), the fuel production is more than 42.4kg / m3, Is more than 17%, indicating that the block can be stably burned and the recovery rate of the experiment reaches 60%.