中子寿命测井在评价管外窜槽中的应用

管外窜槽已成为制约中原油田注水开发的障碍，并造成了严重的经济损失。文中分析了管外窜槽的形成机理，重点介绍了注硼中子寿命测井技术用于管外窜槽监测的原理、工艺及解释方法。结合中原油田的应用实例，论证了中子寿命测井评价管外窜槽的有效性，为油藏动态监测提供了有效手段。     

常门铺水库溢洪道设计方案比较

在常门铺水库溢洪道改造中，通过不工模型试验，对其数据成果进行分析并进行方案比较，最终采用即经济又合理的方案二，为国家节省投资50.8万元。     

从汾河水库泥沙淤积变化看上游水保治理成效

通过汾河水库建库运行40年中年降水、年来水量、水库泥沙淤积等实测资料比较分析，指出水库在1991～2000年的10年内降水减少情况下，年来水量增加，水库淤积显著减少，说明1987年以来进行的上游水土保持治理成效显著，效益巨大。     

Water quality assessment of a recently refilled reservoir: The case of Bütgenbach Reservoir, Belgium

Bütgenbach Reservoir is situated in the High Ardennes plateau in eastern Belgium (50°25′N; 6°13′E). It is used principally for flood control and for production of hydroelectric energy. It has been subjected to a previous series of studies because of its eutrophication problems and their impacts on the local economy. Bütgenbach Reservoir was emptied during spring 2004 for dam restoration, being refilled in mid‐September of the same year. Selected physicochemical and biological parameters (temperature, dissolved oxygen, pH, inorganic and organic nutrients, chlorophyll‐a) were measured fortnightly during the lake's productive season (mid‐April to mid‐October 2005) at three sampling sites throughout the water column. The water quality conditions after refilling of the lake were compared to previous studies accomplished at the same sampling sites (prior to emptying the lake). The actual trophic status was mesotrophic to eutrophic, based on the combination of total phosphorous and chlorophyll‐a concentrations, as well as water transparency. Bütgenbach Reservoir generally exhibits good water quality, based on the French water quality system SEQ‐eau. A longitudinal decrease in water quality was observed from upstream to downstream, because mainly of the differences in lake bottom morphology and water residence time, and their impacts on nutrient distribution in the lake.     

Optimal operation of a multibasin reservoir system

A simulation-optimization procedure is presented for evaluating the extent of interbasin transfer of water in the Peninsular Indian river system consisting of 15 reservoirs on four river basins. A system-dependent simulation model is developed incorporating the concept of reservoir zoning to facilitate releases and transfers. The simulation model generates a larger number of solutions which are then screened by the optimization model. The Box complex nonlinear programming algorithm is used for the optimization. The performance of the system is evaluated through simulation with the optimal reservoir zones with respect to four indices, reliability, resiliency, vulnerability and deficit ratio. The results indicate that by operating the system of 15 reservoirs as a single unit the existing utilization of water may be increased significantly.     

漳泽水库最优兴利调度研究

漳泽水库供水能力下降。优化调度方式是提高水库效益的最有效途径。通过采用随机动态规划方法与模拟模型交互运算得到现行控制水位的水库优化调度图。采用同样方法对不同控制水位的水库运行方式进行优化调度，选出的规划水库最优控制水位为汛限水位９０４ ．５ ｍ ，正常高水位９０５ ．５ ｍ 。优化的控制水位方案在保障水库防洪安全的前提下可供给城市生活和工业用水６ ３００ 万ｍ３ ，较现行控制水位下的供水量提高１ ２５５ 万ｍ３ 。但农业用水仍然不足，应采取一定措施给予解决，如对灌区工程进行改造，因地制宜采取不同节水措施和污水回用等。     

三峡水库安坪库岸段斜坡破坏机制及稳定性评价

基于斜坡的工程地质测绘和实验室分析,总结了研究地段区域滑坡规律,引入粘弹性基础板的弯曲破坏原理,对该地段斜坡破坏机制进行分析。从岩体本身的质量和岩体在地球内外营力作用下所表现的自稳性两方面考虑,采用两级模糊综合评判理论对测区进行斜坡稳定性工程地质单元划分,并利用刚体平衡理论验证模糊评判结果。     

水库调水调沙回顾与展望--兼论小浪底水库运用方式研究

作者简要回顾了三门峡、恒山水库调度方式和小浪底工程设计、“八五”攻关和专题研究之运用方式以及碛口、三门峡、小浪底水库联合调度方式等。提出小浪底水库调度应坚持“多年调节泥沙 ,相机排沙”运用方式 ;调控库容应大一些 ,同时要有灵活性 ;充分利用天然大水过程排沙 ,必要时也可相机造峰 ;注重水库联合调水调沙运用及有关技术问题研究     

阎王鼻子水库生态调度方案分析研究

本文在分析阎王鼻子水库建设前后下游水文情势变化的基础上,根据河道内生态不同需求和不同计算方法,确定水库下游河道基本生态流量和目标生态流量两种需求方案。在充分考虑大凌河流域河道外需水的前提下,研究分析了阎王鼻子水库最大程度满足河道内不同生态需水要求时的调度方案,对改善水库下游河道环境具有一定的指导意义。     

利用测井资料评价储集层性质的探讨

根据对储集层之简化导电模型的理论分析,提出了一个由电阻率、孔隙度信息表示的、反映储层性质的“孔隙结构参数S”。实际应用表明,S参数在评价储集层性质、计算储层渗透率等方面具有一定的使用价值。