洼60-H26水平井套铣打捞技术

洼60-H26井是一口中曲率水平井,设计井深1 922 m,由于地面条件的限制,设计采用三维井眼轨道。该井水平段在钻至井深1 801 m时,发生卡钻事故。在卡钻事故处理过程中,采用测卡、爆炸松扣技术取出上部钻具后,应用了不同规格的套铣管对被卡钻具进行套铣,采用间歇式套铣方式实现了大斜度井段(45°-90°)的安全套铣,采用短套铣管完成了时水平井段内φ215．0 mm稳定器的套铣,采用φ228．6 mm套铣管成功套铣水平井段被卡LWD仪器,最后通过震击器震击成功解卡。详细介绍了洼60-H26水平井卡钻事故的处理过程,分析了在水平段处理卡钻事故的难点。该井处理卡钻事故的经验,对以后水平井施工中处理井下事故、打捞贵重仪器具有借鉴价值。     

高扬的旗帜——博山电机厂集团股份有限公司精神文明建设纪实

建厂已近60年的博山电机厂,在企业发展的历史上曾经有过辉煌:40年代,作为军工厂,在抗日战争的烽火和解放战争的硝烟中为新中国的解放事业做出了很大的贡献;50年代,作为全国八大电机厂之一,又为新中国的建设事业提供了许多优良的产品,而且作为汽车电机、直流微电机、交流     

Novel blood-compatible waterborne polyurethane using chitosan as an extender

A series of novel block polymers of polyurethane (PU) and chitosan have been prepared in two steps. The first step is the preparation of PU prepolymer, obtained from polytetramethylene oxide glycol (PTMO, M_n = 1000), isophrone diisocyanate (IPDI), and 2,2′-dimethylol propionic acid (DMPA), followed by ionizing PU prepolymer with triethylamine (TEA). The second step involves PU chain-extended by water-soluble chitosan of low molecular weight (M_n = 5000) by self-emulsion polymerization method. The sizes of the latex particles, morphology, and copolymer architecture have been characterized by dynamic light scattering (DLS), general tensile test, infrared spectroscopy (IR), surface contact angle measurement, and transmission electron microscopy (TEM). Furthermore, it shows that the addition of chitosan remarkably increases anticoagulative property of PU elastomers confirmed by the recalcification time. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008     

型钢矫直中产生缺陷的原因及改进

结合邯郸钢铁集团公司型棒材厂型材矫直后头、尾部普遍存在的问题,分析了产生问题的原因,通过采取一些技术措施产生了一定的效果,进一步提出了对矫直机结构的改进方案。     

加热炉用喷补料的研制及应用

介绍了ＨＹＪ—０１喷补料的实验室研制及工业应用。实践表明，该喷补料粘接强度好，抗热震性好。喷补衬使用时间已超过１４个月，无明显破损现象。     

New approach for the preparation of nanoporous polyorganosilicate low‐k films

The distribution of pores and the mechanical properties of materials are the key factors in preparing satisfactory low‐k films. In the present study, a kind of silsesquioxane‐polyethylene glycol (SSQ‐PEG) was synthesized and used as a template to make the distribution of pores more even in the low‐k films. The crosslinking density of films could be adjusted by the sol‐gel of tetramethoxysilane/dimethoxydimethylsilane with various proportions. The porosity of films could also be adjusted with different proportions of pendant PEG chains introduced. A dielectric constant as low as 2.1 had been achieved for nanoporous polyorganosilicate films with good tenacity. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 1238–1243, 2007     

一种用于气液间传质的新型轴流式叶轮

一种用于气液间传质的新型轴流式叶轮黄庆民林齐浩李启恩（华南理工大学化学工程研究所，广州５１０６４１）关键词气液传质轴流式叶轮１前言在液体搅拌器中，轴流式叶轮由于功耗较小且泵吸量较大而被广泛采用。在气液两相搅拌器中，由于轴流式叶轮有气泛问题，一般均采...     

Modification of polysulfide sealant with polysulfide polythio‐urethane‐urea

With a small amount of isocyanate‐terminated polysulfide (NCO‐PSF‐NCO) as additive, the commercial polysulfide‐based sealant had significant improvement in mechanical properties. The test results showed that 5% of NCO‐PSF‐NCO could help to rise 50% in the tensile strength and 27% in the ultimate elongation of the polysulfide sealant. The adhesive strength to substrates such as steel, epoxy‐coated or polyurethane‐coated surface also increased significantly. Dynamic mechanical thermal analysis and differential scanning calorimetry analysis revealed that formed polysulfide polythio‐urethane‐urea (polysulfide‐urea) contributed to a slight increase in the T_g of the polysulfide sealant. It might be due to the domains of polysulfide‐urea, which had effects of physical crosslinking and chain‐extending on the polysulfide sealant. However, the introduction of polysulfide‐urea structures had no appreciable influence on oil resistance of the polysulfide sealant. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007     

基于混合型事件日志的模型合规性检验方法

信息系统记录的事件日志多为包含点事件和区间事件的混合型事件日志,针对现有合规性检验方法不能直接应用于此类事件日志的问题,提出一种对混合型事件日志及对应模型进行合规性检验的方法,从拟合度、精确度、和简洁度三个方面来衡量混合型事件日志及其对应的过程模型的契合程度,用户可对三个指标设置权重,求出一个综合的合规性指标.论文设计并实现一个原型工具,通过案例分析说明了算法的有效性.     

溶胶-凝胶结合耐火浇注料抗CO侵蚀性能研究

研究了新型溶胶．凝胶结合耐火浇注料的抗CO侵蚀性能，同时也与传统的水泥结合耐火浇注料进行了对比试验，并从侵蚀前后的表观特征、理化性能和微观结构等多方面探讨了其CO侵蚀作用机理。结果表明，浇注料中的铁氧化物含量，CO气氛的浓度等多种因素决定了CO侵蚀反应的强度。而在同等实验条件下，溶胶-凝胶结合耐火浇注料的抗CO侵蚀性能要大大优于水泥结合的耐火浇注料，因此是替代传统浇注料的理想材料。