陕甘宁盆地中部气田马五_4段白云岩储层孔洞充填物与储集性

陕甘宁盆地中部气田的天然气产于奥陶系顶部古风化亮马家沟组白云岩储层中,储集空间的形成是不同期次溶蚀作用和充填作用相互作用的结果.溶蚀孔洞充填物为方解石、白云石、硬石膏、石英、黄铁矿等矿物,根据充填层序及矿物地球化学特征可识别出不同期次的充填物.溶蚀孔洞的充填程度和充填类型明显地控制着储层的储集性.     

盐城凹陷朱家墩泰州组气藏形成机理研究

分析了朱家墩泰州组天然气的成藏条件和成藏特征、成藏类型和成藏模式。通过分析认为 :泰州组气藏是古生界生成的天然气沿断层运移至泰州组聚集成藏的 ;泰州组气藏具有充足的气源和良好的盖层条件 ,但储集条件相对较差 ;泰州组气藏具有成藏晚、区域上存在良好的盖层和受控于断层等特点 ;泰州组气藏具有深盆气藏的显著特征 ,初步认为该气藏为深盆气藏。     

两步法钙镁泥脱盐技术可行性研究和探讨

一种两步法钙镁泥脱盐方法,将卤水净化一级、二级反应产生的含盐钙镁泥经过两步法脱盐,使含有高盐分钙镁泥变废为宝,钙镁泥盐分可达到0.5%以下,甚至更低。一级反应产生的含盐石膏经脱盐后既可以出售给水泥厂用作水泥缓凝剂,又可作为制砖的添加剂。二级反应碳酸钙废渣经脱盐后由于含量较高其用途及前景更广。     

Inductive modulation on P-glycoprotein and cytochrome 3A by resveratrol,a constituent of grapes

Resveratrol has been reported to show various beneficial pharmacological effects. Nowadays, resveratrol dietary supplement (RDS) is available in the market. Cyclosporin (CsA), a probe drug of P-glycoprotein (P-gp) and cytochrome P450 3A4 (CYP3A4), is an important immunosuppressant. This study investigated the effect of coadministration of RDS on CsA pharmacokinetics.     

Colorimetric artificial nose for identification of Chinese liquor with different geographic origins

Colorimetric artificial nose was used to characterize and identify Chinese liquors from six different geographic origins. Using chemical dyes as the sensing elements, the developed colorimetric artificial nose showed a unique pattern of color changes upon its exposure to Chinese liquors. Data analysis was performed by chemometric techniques: Hierarchical cluster analysis (HCA), principal component analysis (PCA) and linear discriminant analysis (LDA). Each category of Chinese liquor could cluster together in PCA score plot. No errors in classification by HCA were observed in 45 trials. LDA model showed a 100% of prediction ability for Chinese liquor. The results demonstrated that colorimetric artificial nose was able to classify Chinese liquors from different geographic origins.     

一种逼近（过）型值点的曲线匀化方法

本文提出一种在工程上实用的Ｂｅｚｉｅｒ曲线匀化方法。在一定条件下，匀化曲线可按照指定精度逼近（过）原曲线的型值点列。文中首先介绍了基于离散与归并方法的匀化条件及实现步骤。对过节（型值）点的曲线归并方法做了进一步阐述。文中所述内容已在ＮＰＵ－１／ＣＡＤ－ＣＡＭ系统软件中实现和应用。     

Accurate measurement of the refractive index of air

An interference refractometer for absolute measurement of the refractive index of air has been developed. It is essentially based on components of a commercial Zeeman type laser interferometer system and uses a differential interferometer and a vacuum chamber with four measurement cells. The resolution and accuracy of interference phase interpolation is improved by an electronic phase meter and a detection technique which compensates for interferometer non-linearity. The system has been designed for an accuracy of a few parts in 10⁸. Experimental investigations of individual components and comparison measurements with pure gases, with Edlén's formula and with the BCR interference refractometer confirm this goal.     

宽带接入技术在VSP数据传输中的实现

经过5000m长的铠装测井电缆进行高速数字传送是数字化测井仪要解决的关键问题。文章对XDSL的几个技术要点进行了说明；阐述了应用宽带接入技术的国产全数字化多级VSP仪器的原理；基于该项技术的VSP测井数据传输设备已经完成了室内高温高压试验，传输速率达500kHz。     

SBR改性沥青的低温性能评价

主要对三种国产基质沥青和六种丁苯橡胶(SBR)改性沥青进行了测力延度试验(FDT)、常规技术指标试验以及SHRP的动态剪切仪(DSR)和弯曲梁流变仪(BBR)试验，并且将FDT中采用的粘弹比、拉伸柔度、应变能等指标与沥青的当量脆点(T1．2)、以及损失模量、弯曲劲度模量(S)、斜率(m)相比较，结果显示FDT所选的三个评价指标与SHRP的评价指标有良好的相关性，从而说明了采用FDT对沥青结合料在老化、疲劳综合作用下的低温性能进行评价的经济合理性以及选择三个评价指标的可靠性。     

多相流井筒压力分布规律探讨

井底负压值控制是欠平衡钻井技术的基础,而井底负压值的大小与环空多相流的有关压力计算有关.根据多相流诸多变量参数都是井深函数的特点,提出了微分井眼空间,然后在这微分段内假设计算参数不变进行井底压力计算,建立了相应的数学计算模型,并用数学的方法对计算模型的正确性进行了验证.根据该模型编制的计算机软件的现场应用表明,该方法具有很强的适用性.