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- surface vertical well suction 地面垂直井抽采
- 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。
- 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。
- 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。
- In vertical wells, the included angle between the fracture surface and the current surface emitted by DLT( dual laterolog tool) is equal to the inclination of the fracture surface. 在直井中,双侧向测井仪所发出的电流面与地层裂缝面之间的夹角,等于地层中裂缝面的倾角。
- 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。
- 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。
- 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。
- The theoretical analysis, test results and engineering implication show that high-speed centrifugal pumps with two-stage inducers can achieve better suction performance than those with single inducer. 经过理论分析、试验研究和工程应用表明，串联诱导轮可使高速泵获得比带单级诱导轮更高的汽蚀性能。
- 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。
- The stability of directional well depends on the formation dip and trend, deviation and direction of well.In some weak\|face formations, vertical wells are much dif... 对斜井来说，地层走向、地层倾角、井斜方位和井斜角不同，其井壁稳定性也不同。
- An Attempt to Drain Gas from Gobs with Surface Vertical Holes 地面垂直钻孔抽放采空区瓦斯的尝试
- 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。
- Because of deflection and unsymmetrical space around in horizontal and deviated wells, downhole flow status is much different from vertical wells. 摘要水平井、斜井由于井身倾斜以及井筒周围空间的非对称性使井下流动状态与垂直井极不相同。
- Rubber suction grip prevents damage to surface. 橡胶吸盘更好保护表面不被损坏.
- The gas bubbled to the surface of the water. 气体变成气泡升上水面。
- Abstract: Analyfc solution is established to describe axial forcedistribution of strings helical buckled in vertical wells when slack down from the top. 文摘: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。
- The surface of the liquid gradually crusted over. 液体表面渐渐地结了一层皮。
- Three types of response features occur during waterflooding, with highly deviated directional wells as production wells and vertical wells as injectors. 采用大斜度定向井采油,直井注水,在注水过程中油井呈现出常规型、突变型和波动型三种见效特征。
