共查询到20条相似文献,搜索用时 109 毫秒
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我国作为一个资源较为丰富的大国,但国家人口众多,人均资源也就较少。同时也出于安全性的考虑空气泡沫驱需要采用较为安全的空气资源,同时也要要求对于空气泡沫驱的原理和优势进行分析工作,综合各种因素的分析结果,以空气作为空气泡沫驱的材料,比采用一些惰性气体更为适当,具有较明显的优势,同时在空气氧化时也会产生较多的热等,可以对储层采收率的提升产生有利影响,其次由于针对不同的储层,岩心渗透率以及含油饱和度都会产生一定的作用,相关工作人员可通过科学有效的实验评价等方式,选择出适合的,来有效保证空气泡沫驱的使用效果。笔者根据自身工作经验以及该专业的学习,在本文中对于空气泡沫驱提高采收率原理及影响因素进行简要分析,希望能对有关工作人员具有一定启发。 相似文献
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近年来,砂砾岩油藏在国内外上报和探明储量中所占比例明显上升。为了有效开发砂砾岩油藏资源并及时做好评价,准确标定可采储量至关重要。本文主要砂砾岩油藏采收率的标定方法进行了分析,建立了适于砂砾岩油藏采收率标定的计算方法,并对影响采收率的因素进行了探讨,以期对同类型油藏的开发提供指导意义。 相似文献
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苏建栋 《石油工业技术监督》2014,30(9):7-10
河南油田以边水油藏为主,部署的部分水平井投产后含水上升较快,在建立典型地质模型的基础上,运用油藏数值模拟方法,研究了边水油藏水平井水淹的影响因素,包括地质因素和开发因素,并运用灰色关联分析法,对各影响因素进行敏感性分析,识别了各因素对边水油藏水平井水淹的影响程度,得出其排序为:与边水距离平面非均质性剩余油分布产液速度油水黏度比射孔段长度水平井轨迹垂向非均质性。 相似文献
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一、UV固化油墨的机理紫外线干燥油墨(即UV固化油墨)旨在一定波长的紫外光光线照射下,油墨内的连接料发生交联反应,从液态转变成为固化的油墨。UV固化是依靠光波的传递引发反应,所以UV固化体系中必须包含光敏引发剂。 相似文献
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Edward F. McDonough 《Journal of Product Innovation Management》2000,17(3):221-235
Although recent empirical research shows that most firms have implemented cross‐functional teams for the majority of the new product development projects undertaken, they are still finding it hard to ensure that these teams are successful in completing the new product development task. In this article, the author first reviews the vast literature on cross‐functional new product development teams to uncover the array of factors that have previously been demonstrated or hypothesized to relate to cross‐functional team success, when measured at the project level. He then analyzes the responses of 112 new product development professionals to determine which factors are more frequently mentioned as leading to project success. In looking at how to achieve successful teams, many factors have been suggested in the literature by a number of different researchers. The author suggests a model of these factors that divides them into three categories that help achieve success. Setting the stage for product development by developing appropriate project goals, empowering the team with the needed decision‐making power, assigning the appropriate human resources, and creating a productive climate should be related to fostering team success. Of these four factors, appropriate project goals is mentioned most often as being associated with success, followed by empowerment. Several specific team behaviors, including cooperation, commitment to the project, ownership of the project, and respect and trust among team members, also have been posited to contribute to team success. Of these, this research finds that cooperation is mentioned most often as being associated with success, followed by commitment and ownership. Finally, a number of researchers have suggested that team leaders, senior managers, and champions provide enabling support to cross‐functional teams in achieving success. Team leadership is the most frequently mentioned enabler, according to these findings, followed by senior management support. The author's results also show that increased use of cross‐functional teams in new product development is related to higher project success. However, achieving cross‐functional team success appears to be more complicated than previously thought. For example, across the set of factors identified in this research, the most frequently mentioned is obtaining the team behavior of cooperation. Setting appropriate project goals, a stage‐setting step that is completed early in the project, follows closely in relative importance. Finally, providing good team leadership as an enabler is the third most frequently mentioned factor in achieving success. This suggests that companies must work in all dimensions to maximize the probability of achieving team success. 相似文献
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稠油主要通过蒸汽吞吐、蒸汽驱等工艺技术进行开采,目前,困扰蒸汽吞吐的主要问题是高压井。据统计.2002年孤东采油厂吞吐注汽66口.注汽压力达到15.0MPa以上的注汽井共24井次.其中注汽干度为0%的井12井次。2002年与2001年同期对比情况见表1。 相似文献
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电力市场中市场操纵力的成因及对策 总被引:3,自引:1,他引:3
在对目前我国发电侧电力市场类型进行判断的基础上,分析了电力市场中产生市场操纵力的原因,给出了市场操纵力的判别指标,提出了降低市场操纵力的措施,对于总结电力市场试点工作、设计未来的电力市场结构和市场规则具有普遍的指导意义。 相似文献
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影响国际油价的主要因素分析 总被引:1,自引:0,他引:1
石油作为一种战略资源,一直是国际社会争夺的焦点。近些年来受地缘政治、国际资本流动、突发事件与供求关系等因素的共同影响,国际石油市场动荡不安。文章从最基本的供求规律视角出发,介绍了世界石油供求格局演变的进程,总结出世界石油供需总体上表现为需求略大于供给,供需平衡紧张,世界石油供需格局呈现出发展中国家尤其是亚太地区成为世界石油需求中心的趋势。同时对影响国际油价的主要因素进行探析,指出石油价格在长期内主要是受到供求关系的制约,而国际政治、投机行为等随机因素则会引起国际石油价格的短期波动。 相似文献
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成品油价格影响因素的ISM分析 总被引:7,自引:0,他引:7
余晓钟 《石油化工技术经济》2002,18(4):51-54
成品油价格受多方面因素影响,而且因素间的关系错综复杂,运用ISM分析,可以从复杂的因素及因素链中,找到影响成品油价的表层原因,中层原因和深层原因,为成品油经销企业提供宏观上的决策依据。 相似文献
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影响国际石油价格因素的定量分析 总被引:12,自引:1,他引:12
在时影响国际油价的诸多因素进行分析的基础上,采用协整理论和误差修正模型给予定量研究.结果表明.美国原油库存、美元汇率,美国石油需求和中国石油需求四个因素不论在长期还是短期内都对国际油价有影响:而欧佩克原油产量只在长期对油价产生影响、在短期内则影响不明显从长期来看.欧佩克产量与美国原油库存每增加1%、美元汇率每提高1%,油价将分别降低1.25‰、3.74%和3.06%;美中两国石油需求每增加1%.油价将分别上涨4.02%和1.74%,从短期来看,油价对由美元汇率、美国原油库存与中美石油需求共同决定的均暂水平的偏离的调整、大约需要三个季度才能完成。在短期内,美国原油库存和美元汇率每提高1%,油价将分别下跌1.92%和1.82%:美中两国石油需求在短期内也可以影响油价.但这两个因素在短期内的影响没有长期那么大,石油期货市场上的投机因素、突发事件以及政治事件等因素在短期内起着比较重要的作用。 相似文献
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Japanese and British Companies Compared: Contributing Factors to Success and Failure in NPD 总被引:2,自引:0,他引:2
The success or failure of a new product is an issue of continuing concern to management in the 1990s. Little research, however, has been conducted on this issue from a British perspective. In this article, Scott Edgett, David Shipley and Giles Forbes report the findings of an investigation into success and failure in Japanese- and British-owned firms that conduct business in the United Kingdom. The results from this comparative study illustrate that new product failure rates are still high, with the Japanese firms only marginally outperforming British owned firms. 相似文献
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从价值理论分析,原油成本或毛利、炼油成本及营销成本是影响炼油业务价值的主要因素。原油种类的优化配置是增加炼油业务价值的主要潜力和方向。增产丙烯、芳烃等高附加值产品已成为提高炼油业务价值的主要手段之一。为了优化炼油价值链.建议:(1)在结构调整中,要重点对净现值(NPV)和投资资本回报率(ROIC)同时发生作用的驱动因素进行调整;(2)优化区域部署和资源配置;(3)大力增加高附加值产品比例和综合商品率;(4)加大技术改造的力度,降低可变成本;(5)提高装置安全系数,降低固定成本;(6)搞好物流优化,降低仓储和运输成本,降低管理费用。 相似文献