inserted into the wellhole and cemented into place. Oil well cementing is a mixture of water and cement that is pumped into the space between the casing and the wellbore, known as the annular space. The cement bonds the casing to the formation, providing ...
Subcategories - 4-digit Level (more specific) 1381-Drilling Oil and Gas Wells 1382-Oil and Gas Field Exploration Services 1389-Oil and Gas Field Services, Not Elsewhere Classified Industry Executives Would you like to email executives in SIC Code 138 - Oil and Gas Field Services? Below are so...
1389 Oil and Gas Field Services, Not Elsewhere Classified 1389其他原油和天然气田服务业(未被归入以上类别) Major Group 14: Mining And Quarrying Of Nonmetallic Minerals, Except Fuels 14:非金属矿藏采掘业,燃料除外 Industry Group 141: Dimension Stone 行业组141:石材业 1411 Dimension Stone 1411石材业 ...
additional effort must be expended to remove the oil. Most often, the well is flooded with water to flush out the oil. Finally, in some wells, tertiary recovery methods, such as injecting steam or gases into
SIC竞赛 (Student Investment Challenge) 中学生投资挑战赛是一项面向中学生的模拟投资比赛,获得CEE官方认证, 由ACME 提供学术支撑。SIC竞赛是由CEE和ACME双重认证的高含金量竞赛。 SIC商赛为学生提供了一个理解和实践经济学理论的平台,通过模...
碳化硅功率器件涵盖碳化硅裸芯片,碳化硅二极管和碳化硅MOSFET,还要碳化硅模块。我们重点介绍一下碳化硅二极管和碳化硅MOSFET。碳化硅二极管除了确保符合当今最严格的能效法规(Energy Star、80Plus、以及European Efficiency)外,碳化硅二极管的动态特性是标准硅二极管的
近日,无锡市举行2023年一季度重大产业项目开工仪式。此次无锡市集中开工重大产业项目176个,总投资1444.2亿元。江阴集中开工重大产业项目28个,总投资210.5亿元,当年计划投资74.2亿元,其中包括昕感科技等项目。昕感科技是一家SiC功率半导体产品研发商,主攻SiC功率器件芯片及模组产品研发,坚定地选择了最具长期竞争力的IDM模式...
1389 Support Activities For Oil and Gas Operations 1400 Mining and Quarrying Of Nonmetallic Minerals (no Fuels) 1411 Dimension Stone Mining and Quarrying 1422 Crushed and Broken Limestone Mining and Quarrying 1423 Crushed and Broken Granite Mining and Quarrying 1429 Other Crushed and Broken Stone ...
摘要为保证SiC MOSFET在三电平拓扑中应用的可靠性,需对其进行过电压与过电流保护。该文针对短路导致的过电压情况,提出在中点钳位(NPC)拓扑中加入大电容值飞跨电容的方法,并结合短路保护,保证发生短路故障时SiC MOSFET不过电压损坏,且能快速保护关断,以减小过电流风险。通过搭建短路测试平台,验证了三电平电路发生短路故...
核心提示:总投资约15亿元、月产晶圆6万片的徐州高新区汉轩车规级功率器件制造项目开工建设。 12月18日,总投资约15亿元、月产晶圆6万片的徐州高新区汉轩车规级功率器件制造项目开工建设。 汉轩车规级功率器件制造项目总投资约15亿元,占地面积68.8亩,总建筑面积约8万平米,洁净室面积1.4万平米,满足6到8英寸晶圆生产...