稠油蒸汽驱三维物模实验影响因素分析

蒸汽驱是稠油油藏开采较为有效的技术,由于受诸多条件影响,为了较为全面地认识蒸汽驱这一开发方式,利用三维物模装置,以某油田稠油油藏为主要原型,通过蒸汽驱物理模拟方法研究注入压力、蒸汽干度、注汽速度等因素对稠油蒸汽驱的影响。通过研究发现注入压力大,采收率提高;当蒸汽干度大于50%,在蒸汽驱过程中,蒸汽干度越高,驱油效果就越明显。

Analysis of experimental factors based on the three-dimensional model of heavy oil steam flooding

Steam flooding is a relatively effective thermal technology for heavy oil reservoirs .The steam flooding is limited by many conditions .In order to understand the steam flooding development way more comprehensively , a three-dimensional model based on a certain oilfield is used in this paper to study the factors that influence heavy steam flooding , such as steam injection pressure , steam dryness , and steam injection rate , through the physical simulation methods of steam flooding .And it turns out that reservoir recovery efficiency can be increased with the increase of injection pressure; when the steam dryness is higher than 50%, the displacement efficiency will in-crease with the increase of steam dryness during the steam flooding .