录井水淹层评价技术及在大庆喇萨杏油田的应用研究

【作者】 刘启；

【导师】 颜其彬； 郎东升；

【作者基本信息】 西南石油学院 ， 油气田开发工程， 2005， 硕士

【摘要】 二十一世纪,世界面临着能源危机,我国石油需求与供给之间的矛盾也日益突出。目前,大庆油田已进入高含水后期,原油产量开始逐年递减,形势非常严峻,研究水淹层评价新技术,提高油田调整挖潜效率,是一项十分迫切而又有深远意义的任务。 论文通过开展模拟水驱油实验,研究了地化分析和荧光显微图像随含水上升的变化规律,以测、录井资料为基础,结合密闭取心岩心分析,建立了一种以录井新技术为核心的水淹层综合评价新方法。研究成果在大庆喇萨杏油田应用,通过井壁取心分析评价了30口井,薄差层解释符合率达到了70%以上,并有多口井薄差层获得了工业油流,有效地解决了困扰油田开发调整的薄差层评价的“瓶颈”技术难题,对油田的可持续发展具有重要意义。更多还原

【Abstract】 The world is faced with energy crisis in twenty-one century, and the contradiction between oil demand and supply of our country is becoming more and more prominent day by day. At present, Daqing Oilfield is stepping into later stage of high water content, oil production capacity decreases progressively year after year, the situation is becoming very crucial. To study new technique of evaluation of water-flooded zone and to enhance the efficiency of adjustment and potentiality for oilfield is one of the most urgent and meaningful tasks.By developing simulated experiment of water displacing oil, this paper studied variation regularity of which geochemical analysis and fluorescent microscopic image change with the ascension of water content. On the basis of wireline logging and geo-logging information, integrated by core analysis of sealed coring, a new comprehensive evaluation method of water-flooded zone taking new technologies of geo-logging as the core has been established. By application of research fruits in La-Sha-Xing oilfield of Daqing, 30 wells have been evaluated through sidewall core analysis, the coincidence rate of interpretation for thin or poor oil layer reaches more than 70%, and the thin or poor oil layer of many wells obtained commercial oil flows. This resolved effectively the big technical ’bottleneck’ problem of thin or poor oil layer evaluation, by which interfered development and adjustment of oilfield, and plays an important role on the sustainable development of oilfield.更多还原