共查询到20条相似文献,搜索用时 62 毫秒
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宝鸡石油钢管有限责任公司(宝鸡钢管),前身是宝鸡石油钢管厂始建于1958年,是我国"一五"期间156个重点建设项目之一,也是我国第一个大口径螺旋缝埋弧焊管生产厂家.建厂60多年来,宝鸡钢管已发展成为我国规模大、品种全、市场占有率高的专业化焊管企业.按照中国石油集团公司"四精"管理要求,该公司从2019年开始,启动精益管... 相似文献
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螺旋焊管成型缝"噘嘴"产生的原因及控制措施 总被引:2,自引:2,他引:0
分析了螺旋焊管制造过程中成型缝"噘嘴"现象产生的机理和原因,以及"噘嘴"现象对钢管质量的影响,并提出了制定最佳工艺参数、解决钢带钝边形状不合理、对钢带边缘进行预弯等解决"噘嘴"的有效控制方法. 相似文献
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《中国油气》2017,(2)
正During his visit to Central Asian and Southeast Asian countries in September and October 2013,Chinese President Xi Jinping proposed major initiatives to make joint efforts to build the "Silk Road Economic Belt(SREB)" and the "21st Century Maritime Silk Road(MSR)".With the historical imprint of the Silk Road and through the comprehensive and in-depth cooperation with the characteristics of 相似文献
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科技创新激励机制的探索与实践 总被引:1,自引:1,他引:0
文章回顾了中海油能源发展股份有限公司监督监理技术服务分公司在科研项目进展、科研成果转化、知识产权管理等方面取得的突出成绩,介绍了该公司在建立并完善科研创新激励机制方面进行的探索与实践经验。文章认为,公司制度和政策向创新者及科研工作者的倾斜,是公司科研水平提升与科研实力不断增强的有力保障。 相似文献
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油气藏的滚动勘探开发和管理 总被引:2,自引:2,他引:0
中国东部新生代断陷盆地,在多次地质运动作用下,地质构造下分复杂,形成了多元复合成烃,多期运聚平衡,多套油层系,多种成藏类型的复杂断块和复式油气区。 相似文献
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《Food Control》2018
Spices and herbs can contain toxin-producing bacteria and moulds, which can cause health problems for consumers and contribute to food spoilage and shelf-life reduction. The aims of the present work were (i) to determine the occurence and levels of B. cereus and moulds; (ii) to charactize the incidence and diversity of B. cereus emetic toxin (ces, CER), and diarrhoeal toxin-encoding genes (entFM, nheA, hblC, cytK) and toxigenic potential of Hbl toxin-producing B. cereus strains. Black ground pepper samples showed the most contamination with the highest concentration of B. cereus 2.49 log10 CFU/g. Moreover, cumin contained the most prominent mould concentration level of 3.6 log10 CFU/g. The most common moulds were Aspergillus and Penicillium spp. Compared to packaging type, all products acquired from the local market, except curry for B. cereus, exchibited high concentrations of B. cereus and moulds. Four genes were identified – 96% of B. cereus strains contained entFM, 94% nheA, 56% hblC, 42% cytK. None of the samples contained emetic toxin-encoding genes (ces, CER). Toxigenic potential of Hbl toxin was found in 72% of B. cereus strains. Different temperature, moisture levels and hygiene practices were observed at places of sale in local markets thus facilitating contamination and development of moulds. Moreover, the presence of B. cereus and its ability to produce toxins in spices and herbs, may suggest the need to establish microbiological criteria for mould and spore-forming bacteria in spices and herbs. 相似文献
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油气勘探开发中的沉积学创新与挑战 总被引:5,自引:0,他引:5
根据沉积学研究进展及在实践中的应用成效,梳理未来油气勘探开发对沉积储集层研究的需求,并提出未来研究的重点方向和领域。近年来,中国沉积学研究取得多项重要成果:建立跨重大构造期沉积盆地岩相古地理与浅水三角洲砂体发育新模式,扩展了油气勘探领域;深水沉积砂体分布规律的新认识促使深水—超深水区与湖盆中心持续获得重大油气发现;深层—超深层储集层发育机理的新认识拓展油气勘探开发深度;富有机质页岩发育模式与非常规储集层研究新进展,促进非常规油气勘探开发取得重大突破;多尺度开发地质建模有效预测剩余油分布。沉积储集层研究的新技术与新方法为沉积学理论发展及其工业化应用提供了基础。未来沉积学研究中,应发展传统沉积学、创新细粒沉积学和非常规储集层地质学,为沉积原型盆地恢复、富有机质页岩富集区评价、有利储集层预测和有利目标区优选提供依据,推动沉积学不断创新。 相似文献