针对原油外输中长输管线容易产生输差,影响原油计量工作交接的问题,从影响输差的温度、排量、管存量、气体溶解度、流量仪表本身及漏失量六个方面分析,通过纠偏方式和计算判断输差是否在合理范围内,为长输管线的输差管理提供了借鉴和参考.

GLZ型高压流量自控仪作为阀组注水井的主要计量仪表,为确保精细注水的应用要求,达到合水油田原油增产、稳产的良好效果,故对其精度要求较高.通过对GLZ型高压流量自控仪示值误差重复性、标准表及系统引入的不确定度的计算,进行测量结果不确定度评定,得出合成不确定度为0.61％,能够较好地应用于注水单井计量,该评定为以后的校准工作提供了依据.

为了给合水油田庄西线输油管线高输量安全经济运行提供基础数据,对庄西线原油的黏温特性及加热输送特性进行了分析研究,计算出雷诺数,摩阻损失,回归了庄西线原油的黏温方程,绘制各测试温度下的黏温曲线.根据以往经验表明,庄西线在外输温度35℃～65℃,原油表现符合牛顿流体特性.且所回归的方程与实验所测数据的拟合程度较高.发现了影响能耗输送条件.

In the north and south sides of Borjianghaizi-Sanyanjing fault zone of Hangjinqi exploration area in northern Ordos Basin,the accumulation conditions and features of the Permo-Carboniferous such as source rock,reservoir,the relationship between source rock and reservoir,gas and water distribution,deliverability etc have significant differences.By analyzing the differences of methane content and density of the natural gas in the south and north of the fault zone,the results show that some part of the natural gas which exists in the north of the fault zone was originated from the south.Three types of unconformity transport channel were divided.Through analyzing the characteristics of the faults,it is clear that the natural gas generated from the south could migrated to the north of the fault zone through the unconformity and faults.Combined with the analysis of source reservoir cap rock assemblage and transport features,the reservoir-forming assemblage characteristics of the coal formation gas source rock and fluvial facies compact sand in Yishan slope area which located in the south of the fault zone was determined to that the source is adjacent to the reservoir which is widely distributed,and in the inherited uplifted area which is in the north of the fault zone,local gas source condition is poor,but a side joint group with the source rock area in the south of the fault zone was formed in this area.The exploration area located in the quasi-continuous-discontinuous transition zone of the Permo-Carboniferous in the north of the Ordos Basin,based on which two different types of natural gas reservoir forming models were established.The model in the south is "the adjacent of the source and reservoir and physical property's controlling of reservoir",the models in the north is "dual sources' supplying of gas,trap's controlling of reservoir".

The after-treatment process of finishing lube base oil and wax products made from heavy VGO via hydrotreating technique was optimized by using vacuum drying and filtering（hereinafter called as short process） to take the place of vacuum drying,filtering and hydrofinishing（hereinafter called as long process）.Pilot plant studies and commercial tests with the short process show that,to the HVIⅡ10 dewaxed oil,the water content which is responsible for the turbidity of oil is decreased and the turbid appearance is eliminated,and the solvent content in oil is decreased as well,all its quality properties are well to meet 70# microcrystalline wax,with a relatively lower energy consumption and material consumption level;To the deoiled wax,except for the drop melting point is slightly lower than that of 70# microcrystalline wax,other properties can meet the specifications of 70# microcrystalline wax,especially its solvent content is decreased significantly,but the color becomes slightly deeper.

Dexos is introduced in this paper.It is the lubricant specification for light-duty vehicle engine service fills,includes Dexos 1 and Dexos 2,and was developed by General Motors Corporation in 2009.Dexos 1 has been applied on gasoline engine car produced after 2011 on a global scale except Europe,while Dexos 2 on both gasoline car and diesel car produced since 2010 in Europe.The Physical and chemical indexes and engine tests of Dexos come from the latest API/ILSAC GF-5 in America,ACEA C3-2007 in Europe,and GM＇ s own engine tests.By comparing performance indexes of Dexos 1 and API/ILSAC GF-5,Dexos 2 and ACEA C,the differences among them have been found in this paper.And the cost and effect of Dexos 1 on API lubricant specifications have also been analyzed.