共查询到18条相似文献,搜索用时 78 毫秒
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无污染物理采油技术是继化学采油技术之后发展起来的一种油层处理新技术,具有化学采油方法所不具备的许多优点.文章介绍了目前物理技术在采油工程中的应用状况,论述了各种物理采油技术的作用机制和工作原理,并对目前该项技术在我国的发展状况进行了分析,指出了一些需要注意的问题. 相似文献
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新疆有极其丰富的稠油资源,注蒸汽采油是一种世界上发展比较成熟、行之有效的新工艺。目前,蒸汽吞吐技术在克拉玛依油田已得到了广泛应用,蒸汽驱先导试验也取得了可喜的进展。为了通过多种途径提高采收率、降低汽油比,我们试图对注入井下的饱和水蒸汽磁化,利用水蒸汽磁处理后产生一定的磁效应,提高驱油效率。 相似文献
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杨振宇说“物理应该是有血有肉的.应该是与生活、与实验、与应用息息相关,应该是充满时代气息的全新的物理.一句话,应该是活的物理技术物理的生命力在于它可以不断地从日新月异的技术变革中汲取营养.因此,技术物理教育要面向实践,要面向科技前沿. 相似文献
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随着信息技术的发展,传感器技术在生产和生活中扮演着越来越重要的角色.早在几年前,我国就把传感器技术列入“八五”、“九五”的重点研究项目之中.2003年3月国家教育部颁布的《全日制高级中学物理课程标准》紧扣时代脉搏,将传感器的知识也纳入高中物理教学之中,并首次阐述了“数据采集器应用于物理实验”的思想,这些都充分体现了时代的要求.基于这种背景,本文将就中学物理实验中应用传感器技术的好处作一下简单分析,期待着这一新的知识、技术能早日并广泛地应用于物理教学,尤其是物理实验教学之中,给传统的物理实验教学注入新的活力。 相似文献
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With the development of oil recovery technology, ultrasonic technology has been involved in oil production and oilfield development. The mechanism of ultrasonic wave plugging in near well is different from the conventional oil recovery technology. Ultrasonic oil production technique is an effective method to enhance oil production with low cost, good applicability, and no environmental pollution. The core part of ultrasonic oil production equipment for Enhanced Oil Recovery is a high-power ultrasonic transducer. The continuous high-power ultrasound is used to treat the reservoir, which changes the pore structure, the physical property and the state of the fluid, thus improving the permeability and flows conditions of the reservoir, and increasing the oil yield and oil recovery. Ultrasonic oil recovery equipment includes the generation of high-power ultrasonic signals, long-distance transmission and the conversion of electrical energy to acoustic energy. In this paper, state-of-the-art on the development of ultrasonic oil production devices for Enhanced Oil Recovery in China is introduced. The purpose of this paper is to provide a reference for the development of high-power ultrasonic oil extraction equipment and its promotion in tertiary oil recovery technology. 相似文献
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流体动力式发声器在采油工业中的应用研究 总被引:6,自引:0,他引:6
流体动力式声波发生器是一种有着悠久历史的声处理发生器 ,具有成本低廉、结构简单、坚固耐用以及动力源方便等特点 .在采油工业中 ,利用这种声处理技术可以降低原油粘度 ,改善原油物性以及地层渗流条件 ,达到最终提高采收率的目的 .文章论述了几种具有实际应用效果的流体动力式声波发生器在采油工业中的应用研究进展 ,并从作用机理、实验研究、现场应用等方面进行了详细的介绍 . 相似文献
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Ultrasonic pre-irradiation effect upon aqueous enzymatic oil extraction from almond and apricot seeds 总被引:2,自引:0,他引:2
The present work evaluates the benefit of using ultrasonic pre-irradiation before extracting oil from almond and apricot seeds by aqueous enzymatic oil extraction (AEOE) process. The use of a commercial preparation which is a mixture of three proteases in AEOE gave 75% w/w oil yield from almonds at pH 4.0 in 18 h at 40 °C. The ultrasonic pre-irradiation at 70 W for 2 min increased the yield to 95%, w/w and reduced the extraction time to 6 h. The effect of ultrasonic pre-irradiation on meal morphology could be visually seen by scanning electron micrographs. It indicates development of of microfractures and disruption of cell walls in almond powder. With apricot, also, ultrasonic pre-irradiation also marginally increased the oil yield obtained by AEOE to 77% w/w and reduced the extraction time to 6 h. Thus, ultrasonic pre-irradiation step may reduce time required to extract oil from edible oils from plant sources and hence can improve through put in commercial oil production process. 相似文献
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Ultrasonic oil production technique for enhanced oil recovery (EOR) attracts more attention due to its high adaptability, simple operation, low cost and zero pollution to the oil reservoir. In this paper, recent new downhole tools used for enhanced oil recovery developed in China are summarized. Furthermore, research advance on some key problems that affect the widespread application of ultrasonic oil production technique in China are also summarized in view of what are the primary factors that influence crude oil paraffin inhibition and viscosity reduction, whether ultrasonic excitation is better than chemical agent for any plugs removal and whether ultrasound-chemical combination plug removal technology has the best plugs removal effect. The purpose of this paper is to provide reference for the broad application of ultrasonic oil production for enhance oil recovery. 相似文献
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核磁共振岩屑含油饱和度分析技术的实验研究 总被引:7,自引:0,他引:7
含油饱和度是油田勘探开发中的重要油层物理参数之一,目前油田现场岩屑常规录井方法只能定性给出岩屑的含油级别,无法给出岩屑含油饱和度的定量结果. 提出了利用核磁共振技术进行现场岩屑含油饱和度快速定量分析. 在室内实验基础上,采用添加弛豫试剂的方法进行了岩屑含油饱和度的核磁共振定量分析,研究摸索了一套利用核磁共振技术进行现场岩屑含油饱和度分析的方法,给出了弛豫试剂的优选方案,同时给出了核磁共振岩屑含油饱和度的测量精度. 相似文献