稠油蒸汽驱波及规律的主要研究方法

he Main Research Methods of Steam Flooding Spread Rules for Heavy Oil

通过对蒸汽驱波及规律研究手段、方法的总结,归纳出以下主要研究思路:(1)建立蒸汽带及热水带的波及界限;(2)建立纵向动用状况评价方法,反映油藏纵向汽驱动用状况;(3)建立蒸汽流向分析法,确定单井组优势方向及生产井受效方向;(4)数模跟踪研究纵向主力动用层;(5)蒸汽波及体积计算,确定油藏动用程度。通过上述方法研究,可以得出以下认识:(1)蒸汽波及规律具有五种主要模式;(2)蒸汽在时间和空间上的变化具有规律性;(3)可以量化出蒸汽在平面和纵向上的扩展速度。因此,开展蒸汽驱波及规律研究方法研究,可以为蒸汽驱提供一种研究模式,能更全方位地分析蒸汽驱所处的开发状况,为实时调整提供理论依据。

Steam flooding spread rules for heavy oil is an indispensable research work in steam flooding tracking adjustments,through the summary of research methods and means,generalize the following main research ideas:(1) Establish the spread boundaries of steam zone and hot water bank;(2) Establish longitudinal use assessment method,to response the status of longitudinal steam flooding use in reservoir;(3) Establish analysis of steam flow,confirm advantage direction of single well group and effect direction of production well;(4) Digital-to-analog tracking research longitudinal main use layer;(5) Calculation of steam pread volume,confirm use degree of reservoir.Research through the above methods,obtain the following knowledge:(1) Steam spread rules have five main mode;(2)The change of steam in time and space is regular;(3) Expansion speed of steam on the plane and vertical is quantifiable.Therefore,developing the reaearch methods of steam flooding spread rules for heavy oil can provide a research mode for steam flooding,which can analyze the development situation of steam flooding omni-directionally,provide theoretical basis for real-time adjustment.