When underbalanced drilling or drilling easy leaky zone by using aeration fluid,the determination of fluid density and downhole fluid column pressure is very important.
利用气体型流体进行欠平衡钻井 ,或钻易漏地层时 ,流体密度及井下液柱压力的确定十分重要。
Simultaneously the stable time under different fluid column pressure is also tested with the same system.
通过在水泥模拟试件中预置不同倾角的层理面,利用真三轴模拟试验系统测定了不同倾角层理性地层直井井眼模拟试件的承载能力,确定了地层倾角与井壁稳定性之间的关系,同时也测定了试件在不同井眼液柱压力下的稳定时间。
The hydrostatic fluid column pressure of the foam slurry is the key parameter while using foam slurry.
泡沫水泥的静液柱压力是使用该水泥的关键参数,文章讨论了泡沫质量以及温度、压力对泡沫水泥浆密度的影响,推导出了泡沫水泥浆静液柱压力计算公式,利用该式可以方便地估算泡沫水泥固井时的静液柱压力,最后对计算结果进行了简要的分析。
hydraulicefficiency ram
液力压头液压缸柱塞
The Repair of Piston Pump Cylinder and the Optimum Design of Piston Ring for C316 High-pressure Oxygen Compressor
高压C316氧压机双向柱塞泵液压缸的修复与柱塞环的优化设计
helical spline type actuator
带螺旋活塞杆的液压缸
Performance Test for Plunger Pump and Hydraulic Cylinder Performed Under Special Working Conditions
特殊工况下柱塞泵和液压缸的性能测试
tension-control cylinder
控制钻头给进的液压缸
piston gauge with equilibrium liquid
带平衡液柱活塞式压力计
Hamilton standard motor
径向回转柱塞液压马达
centre plunger hydraulic lift
柱塞直顶式液压电梯
axial piston hydraulic motor
轴向柱塞式液压马达
wedge and plunger burster
楔与塞柱型液压冲破机
hydraulic plunger elevator
液压柱塞直顶式升降机
Technique study of hydraulic cylinder Driving Compressor
全液压油缸驱动活塞压缩机技术研究
Hydraulic Control System Analysis of Detacher for Large Hydraulic Support
大缸径液压立柱装拆机液压控制系统分析
a cylinder that contains brake fluid that is compressed by a piston.
含有被活塞压缩的制动液的气缸。
Hydraulic system supplied large punching and riveting force.
采用柱塞式液压系统，冲铆力大，角连接强度高。
Research of Equal Contact Stress Inner Curve Based on Radial Piston Motor;
径向柱塞式液压马达等接触应力内曲线的研究
Research on Pressure Compensated Valve of Electro-hydraulic Proportional Variable Piston Pump
电液比例变量柱塞泵中压力补偿阀的研究
Design for the Rack of 80T Three Beam Four-post Hydraulic Press
带顶模缸的三梁四柱液压机的立柱和梁板设计