新能源汽车的推广对于能源综合利用、构建平衡消费结构有积极的影响和意义,势必会对传统油品消费构成威胁.但新能源汽车存在发展瓶颈,关键技术、基础设施建设及消费者的接受程度都需要突破和适应,待一切取得积极进展后,必将得到蓬勃发展.油品行业在此冲击下如何调整自身,跟上时代步伐值得深思与探索.

Ultra-low permeability reservoirs have low single well production,and the traditional assembly technology of mechanical oil recovery is low efficient in pumping and mechanical recovery system.According to the specific problems in the mechanical oil recovery of low-production wells,improved Φ28mm pump,Class-H sucker rod and small-size energy-saving pumping unit have been developed and assembled.The system optimization has greatly improved the efficiency of the pump and mechanical recovery system,achieved energy efficiency of the oil wells and guaranteed the economical and effective development of ultra-low permeability reservoirs.

In oilfield development process,with reduce of the temperature and pressure and gas separation,the dissolution of the ability of wax incrude oil will decline,wax precipitation is inevitable.when artificial additive chemicals on the oil well to remove wax,as the weather, the personal factor and responsibility and so on,the effect is difficult to be effectively guaranteed, in view of such problems,the digital more dosing system is developed,this device which is installed in plexus type can realized a machine corresponding to more Wells with impact dosing,The operating personnel in the remote can observe the injection rate and rest of medicament at any time,meanwhile,according to need to adjust injection speed,and the comprehensive analysis is used to judge digital system loading change to implement automatic dosing,test effect in filed is good,and can made supply of chemical fertilizer become quantification,continuance,controllable,digitization and unmanned,it provides a new approach for clearing the wax technology.

Based on some special phenomenon in Huaqing oil field like the gas-oil ratio is big,the productivity is low and it's hard to control casing pressure,this article has analyzed theoretical foundation of increase production by rise and down casing pressure repeatedly, has defined the relationship between producing pressure differential and productivity,and has found influence factor or casing pressure control through the combine of theory and practice to increase production of oil well.

A kind of cationic AM/DMDAAC copolymer was synthesized by copolymerization of AM and DMDAAC.The optimum synthetic condition was determined as follows:reaction temperature 45 ℃,reaction time 6 h,monomer mass fraction 20%,mass ratio of AM to DMDAAC 9:1,initiator 0.05%,and pH 4.5.The result of property investigation on the AM/DMDAAC copolymer showed that the product had good salt resistance and temperature tolerance.Experiments in laboratory indicated the copolymer reduced filter loss obviously in drilling fluid.

发电机轴承振动大,根据故障现象和振动频谱特征,分析了形成原因.认为发电机转速达到两倍临界转速附近,轴系发生了油膜振荡.通过检查、处理轴瓦,消除了油膜振荡,轴承振动正常,0.4倍频振动成分基本消失.