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- Oil and Gas Reservoir Model for Multiplayer Channeling and Dynamic Monitor Down Hole Pressure. 多层窜流油气藏模型及井底压力动态
- Bottom hole pressure changes complicatedly in suction well of double porosity reservoir. 双重孔隙介质油藏油井抽汲生产将使井底压力变化十分复杂。
- In routine overbalanced drilling, the bottom hole pressure towers above the formation pressure so that the mud fluid will leak into the formation. 常规过平衡钻井方式打开油气层时,井底压力高于地层压力,钻井流体会向地层渗滤甚至漏失。
- Analytic calculation of ellipticity error effect in neutron penumbral imaging[J]. 引用该论文 郝轶聃;缪文勇;赵宗清;袁永腾.
- When adopted Fuzzy-PID control the overshoot of system response of step signal is no more than 2% and steady-state pressure error is no more than 1kPa. 系统跟踪阶跃信号时,响应曲线的超调量不超过2%25,压力控制误差不超过1kPa。
- The influence of wellbore storage, skin factor, interporosity flow coefficient and elastic storativity ratio to the bottom hole pressure of the observation well were analyzed. 分析了井筒储存、表皮系数、窜流系数以及弹性储容比对观测井井底压力的影响。
- It is important for directing timely the drilling engineering to forecast and try to get the data under the undrilled sub bottom hole pressure during the drilling. 在钻井过程中,准确求取或预测出井底以下尚未钻遇地层的压力,对实时指导钻井作业具有重要的意义。
- This paper analyses the error effect of coordinate conversion parameters,RTK heightsurveying under kinetic condition and the reliability on RTK surveying. 对坐标转换参数的误差影响、动态条件下的RTK高程测量、RTK测量的可靠性等问题,进行了分析研究。
- Slug flow appears very often in swabbing well and usually results in complexity of bottom hole pressure change,and swabbing recovery may make bottom hole pressure more unforeseeable. 抽汲井极容易出现段塞流而导致井底压力变化非常复杂,采用的抽汲生产将进一步加剧井底压力的不可预见性。
- To overcome the information lost when the compression video is applied in railroad field remote transmission, a novel temporal concealment method that combats the error effect is proposed. 为了克服数字视频在铁路现场传输易出现信息丢失的问题,对视频差错掩盖技术进行了研究,提出一种对付视频传输差错的时域掩盖方法。
- His strength in a crisis is an ace in the hole. 临危不惧是他的看家本领。
- It advances that the non-lapping envelope region is a major fact of generating roundness errors and inquires into the effects of ball roundness with non-lapping envelope region, preliminary pressure error and lap tool wear. 根据四研具体对球面研磨的包络原理,提出了未包络研磨区是产生残存圆度误差的主要因素,并探讨了未包络研磨区、四研具初始压力误差、研具磨损不均匀性产生的原因和对研磨残存圆度误差的影响及解决措施。
- The results implied that we can combine the feature-configuration and dual-processes theory to explain the memory conjunction errors effect. 实验结果说明,我们可以将特征-构造理论和双加工理论结合起来对记忆的联合错误效应进行解释。
- bottom hole pressure buildup test 井底压力恢复试验
- From the simulation result, straightness error is affected by guideway parallel, and the suitable pre-load can improve the error effectively. 经由模拟结果得知,导轨圆轴平行度为影响直线度误差的主要原因,此外,适当的弹簧预压力能有效的减少直线度误差。
- aircraft static pressure error corrector 飞机静压误差校正器
- blowout prevention by hole pressure control 井控压喷
- As a result, assembling basic scaffold sets was the best among three and could reduce the scaffold dimension error effectively from 40% to 5.6% for a 6-layer scaffold. 从结果来看,组合式支架的制作方式能够缩小支架尺寸误差,以六层支架来说,其误差可从40%25缩小到5.;6%25。
- He chiseled a hole in the door to fit a new lock. 他在门上凿了个孔,以便装一把新锁。
- The bird picked a hole in the ice with its beak. 那鸟在冰上啄出了一个洞。