空气泡沫驱适应性模糊综合评价方法及应用

发布时间：2018-01-18 07:27

本文关键词：空气泡沫驱适应性模糊综合评价方法及应用　出处：《特种油气藏》2017年05期 　论文类型：期刊论文

【摘要】：针对空气泡沫驱适应性评价中涉及影响因素繁多,且每个因素的影响方式和影响程度各不相同,甚至个别因素无法定量评价等问题,在综合研究的基础上,从调剖、低温氧化及泡沫液性质等方面的影响进行分类,分析筛选了每个方面隶属的二级影响因素,并建立了单因素评价标准。同时,通过制订评分原则和单项影响因素定量化评分,综合利用层次分析法和岭形分布计算函数等数学工具,建立了基于模糊数学的空气泡沫驱适应性综合评价方法和体系。利用研究成果对甘谷驿油田唐80区块空气泡沫驱的适应性进行评价。结果表明:调剖作用适应性好,低温氧化作用适应性较好,泡沫液性质适应性较好。该区块实施空气泡沫驱矿场试验后含水率由受效前的51%降至阶段评价前的30%左右,平均单井日产油较注水区高0.19 t/d,较非注水区高0.25 t/d,阶段累计增油6 300余吨。
[Abstract]:In view of the various factors involved in the assessment of the adaptability of air foam flooding, and the different influence mode and degree of each factor, even individual factors can not be quantitatively evaluated, on the basis of comprehensive research. The effects of profile control, low temperature oxidation and foam properties were classified, and the secondary influencing factors of each aspect were analyzed and screened, and the single factor evaluation criteria were established. Through the formulation of scoring principles and quantitative evaluation of single influencing factors, comprehensive use of analytic hierarchy process and ridge distribution calculation function and other mathematical tools. The comprehensive evaluation method and system of air foam flooding adaptability based on fuzzy mathematics are established. The adaptability of air foam flooding in Tang80 block of Ganguyi Oilfield is evaluated by using the research results. The results show that:. Profile control has good adaptability. The adaptability of low temperature oxidation is better and the adaptability of foam liquid is better. After the air foam flooding field test in this block, the water cut is reduced from 51% before the effect to about 30% before the stage evaluation. The average daily oil production of single well is 0.19 t / d higher than that of water injection area and 0.25 t / d higher than that of non-injection area.
【作者单位】：陕西延长石油(集团)有限责任公司;西北大学;延长油田股份有限公司;
【基金】：陕西延长石油(集团)有限责任公司科技攻关项目“延长东部油区空气泡沫驱配套技术研究及先导试验”(ycsy2010ky-A-12)
【分类号】：TE357.46
【正文快照】： 0引言20世纪90年代以来,注空气驱油技术逐渐被推广到轻质油田中,其工作原理主要为低温氧化和气驱作用[1-4]。空气泡沫驱是在注空气的基础上发展起来的一项可以有效减缓气窜的技术,具有调剖、气驱及表面活性剂驱等多重作用,有效改善了注空气开发的效果[5-6]。但并不是所有的油

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