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- vertical well casing 立井井筒
- Suitable for vertical well drilling goisting, cage channel of vertical well drilling, port load and unload derrick, and tower crane. 适用于开设立井提升、立井罐道港口装卸起重机、建筑用塔式起重机。
- Main Applications: Suitable for vertical well drilling hoisting. Cage channel of vertical well drilling, port load and unload derrick, and tower crane. 主要用途:适用于开凿立井提升、立井罐道及索道承重、斜井卷扬。
- Aggressive corrosion of well casing and heat exchangers can be caused by ?? HCL, ?? and other acids. 井孔套管和热交换器的侵蚀性腐蚀是H2S，HCL，H2SO4和其他酸类引起的。
- The differential equation can be used to simulate the working state of the tensional section in the rotary slender drillstring in vertical well section. 利用该计算模型可以模拟石油钻井工程中旋转细长钻柱受拉段的工作状态，所得结果对钻井作业具有一定的指导意义。
- SCE) is applied to investigate the grooving corrosion sensitivity of J55 steel oil well casing in electric resistance welding(ERW) zone. 应用控电位的电化学极化试验,测定了J55钢高频直缝电阻焊(ERW)油井套管焊接区的沟槽腐蚀敏感性。
- In the best case, Pyrex can indeed produce quite fast code. 在最好的情况中,Pyrex实际上可以产生非常快的代码。
- In a better case it only takes 24 days from their larvas to cocoon. 虽系野生,但能在室内饲养;茧子又可以缫出成缕的丝达350公尺,是天然丝的一种资源。
- Study shows that horizontal well is better than vertical well for improving production result. 研究表明：水平井比直井更利于改善和提高油田开采效果。
- And considering the features and particular require-merits of deepwater drilling, a program for deepwater DGD well casing program design arid optimization is developed. 结合深水钻井的特点，考虑钻井施工的特殊要求，开发了深水双梯度钻井井身结构设计及优化程序。
- Therefore, DGD may provide an alternative optimization method for deepwater well casing program design, which can produce remarkable economic and industrial values. 双梯度钻井为深水钻井井身结构设计提供了一种新的优化方法，具有显著的经济效益和工业实用价值。
- The filling pile drilling machine of KP2000 type applies to pore forming construction of various architectural base and shallow well with heavy caliber, vertical well of small coal mine, defense engineering bore using and other drilling projects. KP2000型灌注桩钻孔机适用于各种建筑基础成孔施工以及大口径浅水井、小煤矿竖井、国防工程用孔等钻孔工程。
- The influence of the tool eccentricity in oil well casing on the televiewer image is investigated.A correcting approach based on the computing model is proposed. 文章研究了在套管井中仪器偏心对井壁超声电视图象的影响，提出了基于计算影响所用模型的校正方法。
- Two and three dimensional simulation studies have been done to evaluate waterflood oil recovery in a 40 acre 5 spot pattern using horizontal and vertical well systems. The three dimensional simulation results indicate that the parameters considered,i. 为了评价面积0.;16km2（40英亩）的五点井网水平井系统（水平注水井和水平生产井）和垂直井系统（垂直注水井和垂直生产井）注水开发的原油采收率，进行了二维和三维模拟研究。
- In the best case, a slight extra effort is required for legitimate senders. 在最好的情形下,合法发送者只需花费一点点精力即可。
- Taking into account the rotating effect of the drillstring, this paper presents a bifurcating differential equation for the rotating slender drillstring being in tension in vertical well section. 考虑到垂直井中钻柱受拉段在旋转时的转动效应，建立了顶部悬挂、受分布浮重作用的旋转细长钻柱的分岔微分方程。
- Their time complexities are O(n) in the worst case and O(n/m) in the best case. 两个算法的最差、最好时间复杂度分别为O(n)和O(n/m).
- So the gradient of pressure decline in vertical well section and deviated well section is different, it aroused the gradient of fluid viscosity in the two sections has differentia. 在稠油流动过程中，压力损失主要表现为摩阻损失，因此，在定向井中，直井段和斜井段的压降梯度有所不同，流体粘度梯度在直井段和斜井段也有差异。
- Best case: You've got a potentially beneficial contact to add to your Rolodex. 最好的情况：你获得了一个潜在有益的联系人。
- Analytic solution is established to describe axial force distribution of strings helical buckled in vertical wells when slack down from the top. 用解析法建立管柱下放时的轴向力表达式,得出轴向力极限值。
