泵效

考虑自由气、含气液体的体积收缩、漏失、油管和抽油杆的弹性伸缩等4个方面的影响，对C油田H区块抽油井的泵效进行了理论计算。

A theoretical analysis for pump efficiency of pumping wells in the block H of the field C is made in consideration of 4 effects such as free gas , shrinkage and leakage of gaseous liquid , and elastic elongation and shrinkage of tubing and sucker rod .

控制油管伸缩提高泵效的理论分析及措施

Improving pump efficiency by controlling stretching and shrinking of tubing string

LSI指数可用来进行单井、井组或单元的定量分析，不受油井生产层位、泵效等因素影响。

It has the poor type , the normal and good type . The LSI index can be used to analyse quantitatively for single well , well group or production unit .

对比了各种传动方式，认为采用柔性与刚性相结合的传动方案，可使抽油机获得5～8m的冲程，是提高泵效和降低电机功率的有效途径。

Through comparing different driving schemes , a structure that combines wrapping connector driving with rigid driving is adopted to obtain a 5 to 8 meter long stroke , thus may increase the efficiency of pump and decrease driving motor power at the same time .

抽油机井合理沉没度与泵效关系探讨

Relation Between Rational Immersible Degree and Pump Efficiency in Pumping Wells

抽油机井泵效理论计算的实际应用

Practical applications of pump efficiency computation method of pumping unit

阀球入座时间对抽油泵泵效的影响

Pumping Efficiency Affected by the Seating Time of Valve Ball

各损失排量分别计算有助于泵效分析；

Calculating every displacement loss respectively is helpful to pump efficiency analysis ;

百色油田抽油井泵效的影响因素及改善措施

Pump efficiency influence factor and improvement measures in Baise oilfield

提高有杆抽油泵泵效的措施

Measures to Improve the Efficiency of Sucker Rod pumps

油田注水泵提高泵效的试验研究

Experimental research for improving the oilfield injection pump efficiency

但是，目前抽油机井的泵效还较低。

However , the current pumping wells pump efficiency is still relatively low .

抽油泵泵效分析计算

Analysis and Calculation of Oil Well Pump Efficiency

无油管采油技术能降低偏磨和提高泵效

Oil recovery technique without oil tubing used in prevention off-center wear and improving pump efficiency

可提高泵效，降低采油成本，具有良好的技术经济指标。

High pump efficiency reducing production cost .

无游梁抽油机与泵效

No-beam pumping unit and its pump efficiency

抽油井泵效分析

Evaluating Pump Efficiency of Pumping Wells

研制出一种新型流道式导叶结构，使泵效有显著提高，所研制的高效率导叶，可以推广应用于其它低比速多级离心泵的更新改造。

A new design of diffuser is recommended , which gives significant improvement on the pump efficiency .

泵效的高低是反应抽油设备利用效率和管理水平的重要指标。

The efficiency of pump is the important parameter which indicates how we operate and manage equipment .

应用多杯等流型气锚，抽油机井泵效平均提高25%以上。

According to statistical data , the average pump efficiency was increased by more than 25 % .

定量分析了抽油机井油管自由悬挂可能造成的危害：降低泵效；

Damage from freely suspended tubing was analyzed quantitatively . First , efficiency of pump is reduced .

在现场应用中充分表现出了泵效高、系统效率高的特点，显示了良好的工作性能。

It has put up high pump efficiency and high system effectiveness sufficiently , shown good working performance .

现场应用表明，该技术适合于中高油气比的油井，能彻底消除气体影响，达到提高泵效避免气锁的目的。

Filed application shows that the high efficienty down-hole separator can increase the pumping efficiency and prevent gas-lock .

提高泵效特点；

Improving pumping efficiency ;

计算机可按流量、压力、电流和泵效等点动控制泵的工况。

The computer can manipulate operating pump mode according rate of flow , pressure , electricity or pump efficiency .

针对该区块生产中泵效低、抽油机和杆柱负荷偏大等问题，分析了影响深抽井悬点载荷和泵效的主要因素。

Aimed at the problems of low pump efficiency and high hanger position burden , analyzed the main influential factors .

堵芯为特种橡胶制品，对泵效的影响小对，结构合理。

The blocked chip is a special rubber product which has little effect on the pump and a reasonable structure .

而冲程过大时泵效提高的幅度不大，反而影响整个抽油机系统的疲劳寿命。

Excessively long stroke impels few increase in pump efficiency and will effect the fatigue life of the whole pumping system .

实践表明，采用这些措施后，泵效一般可从40～50%提高到80～90%。

Field practice indicates that the adoption of these measures will increase the pumping efficiency from 40-50 % to 80-90 % .

实验结果表明多杯等流型气锚具有井口出气量小、脱气效率和泵效高的优点，具有较好的应用前景。

The experimental result indicates multi-cups gas anchor was of low well head air output , and high degasification and pump efficiency .