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气顶油藏油气界面移动距离的计算 被引量:2
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作者 张安刚 范子菲 宋珩 《计算物理》 CSCD 北大核心 2015年第4期469-474,共6页
针对带地层倾角的气顶油藏,利用跟踪质点的拉格朗日法描述油气界面移动的力学特性;借助油气渗流的基本微分方程组,并假设油气界面呈平直线移动,求解气井和油井单独定流量生产时的油气界面移动;将计算模型进行实例计算.结果表明:随着地... 针对带地层倾角的气顶油藏,利用跟踪质点的拉格朗日法描述油气界面移动的力学特性;借助油气渗流的基本微分方程组,并假设油气界面呈平直线移动,求解气井和油井单独定流量生产时的油气界面移动;将计算模型进行实例计算.结果表明:随着地层压力的降低,油气界面上气相势的下降要比油相势大很多;油井单独生产时,油气界面偏向油井方向移动,而气井单独生产时,油气界面偏向气井方向移动;合理的控制采油采气速度,可以较好地保持油气界面的稳定. 展开更多
关键词 气顶 气界面 移动规律 油相势 相势
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Correlation Analysis of Genetic Distance and Heterosis of the Major Brassica napus L. Cultivars in Yunnan Province 被引量:1
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作者 刘岱 李淑娟 +5 位作者 张传利 朱海平 彭少丹 周筱妍 徐蕾 林良斌 《Agricultural Science & Technology》 CAS 2014年第11期1894-1898,共5页
[Objective] The correlation between genetic distance and heterosis of the major Brassica napus L. cultivars in Yunnan Province was analyzed. [Method] The genetic distances among the 8 major Brassica napus L. cultivars... [Objective] The correlation between genetic distance and heterosis of the major Brassica napus L. cultivars in Yunnan Province was analyzed. [Method] The genetic distances among the 8 major Brassica napus L. cultivars in Yunnan Province were investigated with the SSR molecular marker technique. Moreover, the correlation between genetic distance and field appearance of heterosis was ana-lyzed. [Result] There was a certain correlation between the genetic distance and heterosis of crossing parents (P〉0.05). [Conclusion] It is difficult to predict the het-erosis of Brassica napus L. cultivars and to screen parents by using the SSR molecular marker technique. 展开更多
关键词 Brassica napus L. Genetic distance Heterosis Correlation
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