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CO_(2)含量对天然气高压物性及烃-水相平衡的影响 被引量:2
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作者 张露 税蕾蕾 +4 位作者 张旭东 杨发荣 陈科 康楠 刘泠杉 《石油化工应用》 CAS 2021年第4期48-54,共7页
以实验测试为基础进行富含CO_(2)天然气藏的高压物性特征分析,同时按照中国石油行业标准“SY/T 6434-2000天然气藏流体物性分析方法”,建立适用于含CO_(2)天然气高压物性的测试方法,运用室内物理模拟方法给出在天然气藏中不同含量的CO_... 以实验测试为基础进行富含CO_(2)天然气藏的高压物性特征分析,同时按照中国石油行业标准“SY/T 6434-2000天然气藏流体物性分析方法”,建立适用于含CO_(2)天然气高压物性的测试方法,运用室内物理模拟方法给出在天然气藏中不同含量的CO_(2)对天然气物性的影响效果评价,并进行相态分析研究;通过对不考虑地层水和考虑地层水的含CO_(2)天然气进行PVT相态分析(单次闪蒸、等组成膨胀等)实验测试,全面地分析了含CO_(2)天然气藏地层流体相态变化特征,获得含CO_(2)天然气的偏差系数、体积系数、密度和压缩系数等物性参数变化规律,结果表明:CO_(2)-烃-水体系的相态特征很大程度上受到CO_(2)含量的影响;另外文章对在不同状态方程模型下,富含CO_(2)天然气偏差因子的计算精确度进行对比分析表明:PR状态方程精确度高,相对平均误差不超过1%,适应性好。 展开更多
关键词 富含CO_(2)的天然气 相态特征分析 CO_(2)-烃-水相平衡 偏差因子计算精度
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Similarity Analysis-based Component Standardization for Product Family Design
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作者 韦俊民 林忠钦 来新民 《Journal of Donghua University(English Edition)》 EI CAS 2007年第4期460-466,共7页
During the product family design, it is necessary to reduce the variety of components and share common components among many products. The major benefits are lessened design efforts and reduced costs. Therefore, this ... During the product family design, it is necessary to reduce the variety of components and share common components among many products. The major benefits are lessened design efforts and reduced costs. Therefore, this paper presents an approach to standardize components of a product family. Form feature modeling for components is discussed. Based on the similarity analysis, a step by step method to standardize the feature architectures of components is described. The algorithms for standardization are identified as well. A case for standardizing components of an auto-body family is used to demonstrate the validity of this approach. 展开更多
关键词 Product family Form feature Similarity analysis Component standardization
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