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Search Results: 1 - 10 of 95442 matches for " 高树生 "
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新疆莫北低渗透油藏注采井网产能计算方法研究
Productivity Calculation Method for Injection-Production Pattern in Xinjiang Mobei Low Permeability Reservoirs
 [PDF]

, 于兴河, 刘华勋, 胡志明
Advances in Porous Flow (APF) , 2011, DOI: 10.12677/apf.2011.12005
Abstract:
常规油藏井网产能公式都是基于单相渗流或油水流度比为1、水驱油为活塞式驱的假设条件上建立的,这些假设条件在低渗透油藏水驱油实际过程中并不成立。本文根据联合面积布井注采单元的水驱油特征,将流动区域划分为三个区,运用等值渗流阻力理论,建立了考虑低渗透油藏油水两相渗流特征的注采井网产能公式的通式,并与常规注采井网产能公式进行对比,结果表明,当无因次采液指数随含水饱和度变化较小,趋近于1时,两者计算结果一致;而当无因次采液指数随含水饱和度变化较大,远小于1时,常规产能公式计算结果明显偏大,而且无因次采液指数越低,常规产能公式计算结果误差越大;本文建立的产能公式计算结果更加符合莫北低渗油藏注采井网油井的实际产能。
Productivity formulas of conventional reservoir’s well-net are based on single-phase flow or oil-water mobility ratio is 1 under the condition of piston water flooding. But this is not consistent with the actual process in low permeability reservoirs. According to the water driving characteristics of areal well pattern injection-production unit, the flow region is divided into three zones in this paper. Productivity formula is derived based on the equivalent flowing resistance method considering the low permeability reservoir charac-teristics of oil-water two-phase flow capacity of the flooding pattern. Compare the productivity formula with the conventional productivity formula. The results show that when the dimensionless liquid production index change little with water saturation, close to 1, the two calculated results are consistent; when the dimension-less liquid production index change great with water saturation, much less than 1, the results of conventional capacity formula are obvious big, and the error calculation is increasing with the decreases of the dimension-less liquid production index; The production formula established is more in line with Mobei low permeability reservoirs.
应力敏感性油藏油水两相渗流数值模拟
Numerical Simulation of Oil and Water Tow-Phase See-page in Stress Sensitivity Reservoirs
 [PDF]

沈瑞, 胡志明, 熊伟, , 薛惠
Advances in Porous Flow (APF) , 2011, DOI: 10.12677/apf.2011.12004
Abstract:
本文给出了应力敏感性介质油水两相渗流的数学模型,并采用有限差分方法进行求解。计算过程中,每个时间步的渗透率根据实验测得的无因次渗透率与有效应力关系曲线求得,根据新的渗透率分布求解下一时间步的压力分布。通过数值模拟方法分别研究了不存在应力敏感性、以及三种不同敏感程度的算例,并给出无因次渗透率的空间分布图、日产油量以及平均地层压力的对比曲线图。结果表明:应力敏感性越强,平均地层压力的变化范围越小,无水采油期内的日产油量越低;应力敏感性越弱,平均地层压力的变化范围越大,无水采油期内的日产油量越高。在生产井和注水井附近,渗透率分布变化较为急剧,远离井的区域变化较为平缓。
The mathematical model of oil and water two-phase seepage was derived and solved by numerical limited difference method in the paper. During the simulation, permeability values of every time step were calculated by relation curves between dimensionless permeability and effective stress obtained by experiment. Then the pressure distribution of next time step was calculated by the new permeability distribution. The situation of non-stress sensitivity and three different kinds of sensitive degree are studied respectively through numerical stimulation method. Figures of the dimensionless permeability space distribution, the daily oil production and the average reservoir pressure were drawn. Results show the stronger the stress sensitivity is, the variation range of the average reservoir pressure is small and the daily oil production is lower during the water free oil production period. While the weaker the stress sensitivity is, the variation range of the average reservoir pressure is large and the daily oil production is higher during the water free oil production period. Permeability distribution changes sharply around production and injection wells, while smoothly far from wells.
岩盐储气库水溶建腔优化设计研究
班凡,
天然气工业 , 2007,
Abstract: ?作为“西气东输”工程的配套项目,江苏金坛储气库近日正式投产。根据金坛盐矿有利的建库地质特征,运用岩盐溶腔数值模拟软件对溶腔形态变化规律和影响因素进行了分析研究。从溶腔的总体结构以及水溶建腔过程中生产参数如油垫的位置、循环方式、流量控制、管柱组合等方面进行优化设计,给出水溶建腔优化设计准则和方法;针对岩盐储气库水溶建腔方案,提出造腔时间、平均排量、溶腔体积、平均出口浓度、设计符合率等5项主要评价指标,运用灰色物元分析方法对水溶建腔多方案进行优选,得到最佳方案。实例计算表明,按照一定的水溶建腔优化设计准则和方法,能够对岩盐储气库溶腔进行优化设计;岩盐储气库水溶建腔采用灰色物元分析方法能够全面科学地确定设计方案的优劣,很好地解决储气库水溶建腔方案设计优选的问题。
低渗透岩芯水驱油试验相似理论
沈瑞,熊伟,
岩土力学 , 2012,
Abstract: 以相似理论为基础,考虑低渗透多孔介质非达西渗流特性,研究了油水两相渗流模拟试验理论。应用方程分析法,推导出油水两相渗流控制方程的无量纲形式,获得了低渗透岩芯水驱油模拟试验的相似准则。采用隐式求解压力、显式求解饱和度的方法(impes)对无量纲控制方程进行求解,得到包含相似准数的数值模拟器。通过敏感性分析,得到了每个相似准数对试验结果的影响程度,并通过实际低渗透岩芯的水驱油试验结果进行了验证。结果表明,敏感因子大的相似准数对试验结果影响较大,反之影响则较小。因此,在设计物理模拟试验时,当无法满足模型和原型所有相似准数相等时,应该优先满足敏感因子较大的相似准数相等。
低渗透油藏井网加密调整后开发指标评价及预测综述
Reviews on Evaluation and Prediction of Low Permeability Reservoirs’ Development Index after Infilling Well Pattern
 [PDF]

段宝江, 熊伟, , 沈瑞, 杨智慧, 张焕
Advances in Porous Flow (APF) , 2012, DOI: 10.12677/apf.2012.22003
Abstract: 近年来低渗透油藏在我国油田开发中所占的比重越来越大,注水是低渗透油藏有效开发的最重要手段,为了改善注水后期开发效果,很多低渗透油藏采用井网加密调整的手段来达到注水提高原油采收率的目的。本论文主要针对有关低渗透油藏井网加密调整前后注水开发效果评价的相关文献进行调研分析。内容主要包括两部分:1) 根据井网加密原则针对低渗透油藏设计不同的加密方式,并选择最佳方案,以使油藏开发效果达到最佳;2) 低渗油藏井网加密调整后,根据油藏开发效果评价指标筛选原则,筛选出油藏开发指标评价体系,进而对油藏开发效果进行评价,最终达到对当前注水开发油田的主要开发指标进行预测的目的。
In recent years, the proportion of low permeability reservoirs development is becoming larger and larger in the oil and gas exploration field of our country. Water flooding is the most important way for low permeability reser-voirs' effective development. In order to improve the effect of the water flooding development, a lot of low permeability reservoirs are infilled well pattern to enhance oil recovery. This paper deals with the study of effect evaluation of low permeability reservoir by infilling well pattern. The main content is divided into two sections: 1) In order to achieve the best results of oilfield development, different infilling pattern are designed, and then the best program is selected ac-cording to the principle of well pattern thickening; 2) After thickening the well pattern, according to the selection prin-ciple of oil field development effect evaluation index, an oilfield development indexes system is filtered, and then as-sess on the impact of development, finally, the oilfield development can be evaluated by predicting the main develop-ment index.
已开发油田水驱评价体系及波及系数计算方法综述
Reviews on Evaluating Waterflooding Efficiency on Developed Field and Calculation of Sweep Efficiency
 [PDF]

赵芳, 熊伟, , 沈瑞, 段宝江, 兰喜艳
Advances in Porous Flow (APF) , 2012, DOI: 10.12677/apf.2012.22002
Abstract: 近年来低渗透油藏在我国油田开发中所占的比重越来越大。而注水是低渗透油藏有效开发的最重要手段,如何改善水驱效果,提高水驱效率是低渗透油藏注水开发过程中的关键问题,而水驱评价方法是评判低渗油田注水开发效果的重要手段。本文主要针对低渗油田水驱评价体系相关文献展开调研分析,主要内容包括以下二个方面:低渗油藏水驱评价方法;水驱波及系数影响因素及相关计算方法和应用。文献调研分析结果表明,现有的一些水驱评价体系和水驱波及系数计算方法都不能全面考虑油层的非均质性产生的影响,从而导致非均值低渗油藏的水驱评价结果和水驱波及系数的符合率不高。
In recent years, low permeability reservoir has played an important role in oil field development and water injection is the most important method for reservoir development. How to improve the water drive efficiency and wa-terflooding effect is the main problem and water flooding assessment has played an important role in judging the level of oil field development. In this paper, we mainly discussed the method of waterflooding evaluation and calculation and application of sweep efficiency. Research found that some of the existing methods could not fully take into account the effect of the heterogeneity of the reservoir, making the coincidence rate of waterflooding evaluation and sweep effi-ciency low.
元江县牛角瓜项目开发效益的影响因素评价
The Evaluation of Factors on the Development Benefits for Calotropis gigantea Project in Yuanjiang County
 [PDF]

, 罗明灿,, 杨原, 方福
Hans Journal of Agricultural Sciences (HJAS) , 2015, DOI: 10.12677/HJAS.2015.56027
Abstract:
牛角瓜是具有经济效益、社会效益和生态效益等多重价值的直立灌木,不仅是一种生态环保的新型纤维材料,也为我国石油能源安全和战略性资源储备安全提供支持,但国内现有研究基本集中在植物科学实验。基于此背景,运用AHP-SWOT方法对元江县牛角瓜项目开发效益进行分析,通过项目优势、项目劣势、项目机会和项目威胁各组下的11个指标权重比较,得到牛角瓜项目机会因素影响程度最高,发展定位为增长型战略,并针对结果提出提高开发效益的相关建议。
Calotropis gigantea is a kind of erect shrubs with multiple values such as economic, social and ecological benefits. It is not only new fiber material used for ecological environmental protection, but also is a supporting for oil energy security and strategic resource reserves security in our country. But the domestic existing researches focus on scientific experiments of plant. Based on this background, we use AHP-SWOT method to evaluate development benefits of a Calotropis procera project in Yuanjiang county through the advantages, disadvantages, opportunities and threats of the project, including 11 indices. And the result shows that opportunities factor has the greatest influence, and the development orientation is growth strategy, so we put forward related suggestions of improving the development benefits based on the results.
岩盐品位对岩盐储气库水溶建腔的影响
班凡,,单文文
天然气工业 , 2006,
Abstract: ?岩盐储气库就是根据水溶采矿的原理,通过采出盐水,利用在地下形成的溶腔作为天然气的存储空间。岩盐储气库水溶建腔技术是岩盐储气库的核心内容,直接影响着岩盐储气库的后期作业,对岩盐储气库运行效果、使用寿命等具有重要意义。为此,研究了岩盐品位对岩盐储气库水溶建腔的影响:根据水溶建腔机理,建立岩盐储气库水溶建腔数学模型;对岩盐品位不同的地层条件下岩盐储气库水溶建腔进行动态模拟数值计算;进而综合分析了岩盐品位对岩盐储气库水溶建腔的影响规律。结果表明:岩盐储气库应选择在岩盐品位高的地层建造,这样既有利于溶腔形态的控制,又能缩短建腔周期。
枯竭油藏改建储气库注采运行机理研究
班凡,,王皆明
天然气地球科学 , 2009,
Abstract: ?采用先进的可视化气驱物理模拟研究手段,设计出直径为6cm,长度为60cm的高温、高压钢管填砂模型,模拟地层条件下枯竭油藏改建储气库注采运行;分析了储层物性对储气库库容的影响;测定多次注采后油气水饱和度的变化,研究多次循环注气、采气过程中的气液渗流特征及对注采气能力的影响。研究结果表明:枯竭油藏改建储气库多次注采,既能提高原油采收率,又能增加储气库库容。
仿人机器人复杂动作设计中人体运动数据提取及分析方法
张利格,, 金磊
自动化学报 , 2010, DOI: 10.3724/SP.J.1004.2010.00107
Abstract: ?提出了仿人机器人复杂动作设计中人体运动数据提取及分析方法.首先,通过运动捕捉系统获取人体运动数据,并采用运动重定向技术,输出人--机简化模型的数据;然后,对运动数据进行分析和运动学解算,给出基于人体运动数据的仿人机器人逆运动学求解方法,得到仿人机器人模型的关节角数据;再经过运动学约束和稳定性调节后,生成能够应用于仿人机器人的运动轨迹.最终,通过在仿人机器人BHR-2上进行刀术实验验证了该方法的有效性.
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