盘古山钨矿床近矿热液蚀变岩石的地质地球化学

盘古山钨矿床的近矿热液蚀变作用包括硅化、云英岩化、白云母化、绢英岩化、绢云母化、黑云母化、绿泥石化和碳酸盐化等 ,与钨矿化关系密切的蚀变作用是云英岩化和白云母化 ,其次是硅化、绢英岩化和黑云母化。近矿热液蚀变岩石的岩石化学特征受原岩的岩性和蚀变作用类型控制 ,它们的微量元素含量特征与原岩的岩性、蚀变作用类型及其蚀变强度有关。     

驼路沟钴金矿床地质特征与成因初探

驼路沟钴、金矿位于东昆仑褶皱系昆南断褶带内,产于晚古生代二叠系下统石英片岩中。矿床在区域变质作用的基础上,构造活动继续,现有的裂隙再次开启,后期中低温热液沿着构造薄弱带进一步将钴、金元素活化富集成矿。     

东营凹陷稠油特征及其成因分类

东营凹陷稠油密度高、粘度大、胶质和沥青盾含量高。大部分蚀变的稠油密度与粘度的对数呈线性关系，而低成熟稠油则呈特殊的变化关系。稠油硫含量与蚀变作用程度无必然联系，既取决于生油母质类型或沉积环境的差异，又受降解烃类的细菌差型的影响。目前储层内稠油可划分为两大类，一是未经蚀变的低成熟桐油；二是具蚀变标志的成熟油或低成熟油。原油蚀变后提高了甾烷异构化反应程度，某些样品远近超过导构化反应平衡终最值。因此，蚀变油的甾烷成熟度参数不宜用于油源对比。     

设计环节成本控制

设计环节是处理技术与经济关系的关键环节，应在设计阶段很好地控制工程造价，推行设计招标和限额设计，提高设计质量，严格控制变更。     

排矸系统技术改造及相关技术研究

随着超化煤矿矿井生产能力的提高 ,排矸系统成为制约生产的主要因素。经论证和研究制订排矸系统改造方案 ,并提出了理论依据 ,在不影响生产前提下进行了改造 ,取得很好效果。     

Synthesis hydrophilic hybrid nanoparticles and its application in wettability alteration of oil-wet carbonate rock reservoir

In this study, synthesized SiO₂/ZnO hybrid nanoparticles were used to change the wettability of carbonate rock from highly oil-wet to strongly water-wet state. The SiO₂/ZnO nanoparticles were synthesized by modified sol-gel method. In this method, TEOS was used to increase the functional groups on the surface of the ZnO nanoparticles to produce highly hydrophilic nanoparticles. The contact angle measurements were conducted on the rock surface before and after nano-treatment. The contact angle of oil droplet with the rock changed from 0° to 150°, 161°, 164° and 170° after impregnation the rock with 0.01, 0.033, 0.07 and 0.33 wt.% nanofluids.     

棒磨机预粉磨系统的优化

介绍了棒磨机工作原理,提出了棒磨机在预粉磨系统中的改造方案,通过试验结果表明,改造后的棒磨机系统对水泥增产节能带来了明显的成效,提高了经济效益。     

Enhanced gas-condensate production by wettability alteration to gas wetness

Many gas-condensate reservoirs experience a sharp drop in gas production due to condensation near the wellbore as pressure drops lower than the dew point. Wettability alteration approach has been demonstrated successful in laboratory. However few experiments have been conducted in real reservoir rock with a low permeability. The gas-condensate reservoirs impaired by condensation near the wellbore usually have low permeabilities. In this study, we conducted experiments in the rock sampled from the target gas field (Dongpu). Firstly a new and cheaper chemical was developed to change the rock wettability from preferential water- to gas-wetness effectively. This chemical was thermally stable at a temperature of 170 °C. Experimental results also showed that this chemical was effective at very high salinity. Secondly spontaneous water imbibition tests were run to show the effect of wettability alteration on recovery. Thirdly relative permeability data of gas and water were measured with and without wettability alteration to preferential gas-wetness. Experimental results demonstrated that the relative permeabilities of both the gas and the water phases were increased significantly after the wettability alteration to preferential gas-wetness. The residual water saturation was decreased and the gas production was enhanced greatly due to the wettability alteration.     

扬子石化50MW抽汽式汽轮机的扩容改造

在1－4号50MW抽汽式汽轮机扩容改造的基础上，对5号机实施了以扩容和提高内效率为双重目标的第二轮技术改造。改造后，机组除额定容量由50MW增加到60MW以外，机器组的内效率比改造前提高了5．33％，取得了更为良好的经济效益与社会效益。     

工件检测中基于方向码的图像模板匹配

针对在线工件的特点提出了一种新的工件检测办法.该算法提取方向码作为特征,分粗精两个步骤进行检测,首先计算模板和子图方向码并计算出方向码直方图,粗略的计算候选匹配点和工件旋转角度,然后,针对匹配候选点,利用于图和模板的方向码差值进行精匹配.该方法在工件位置发生旋转甚至是在遮档和光强引起的光照波动等情况下,也能较好的进行匹...