precession cone是什么意思

网络释义

用法例句

Bottom water coning is an important factor affecting reservoir development effect, causing earlier water breakthrough, rapid water cut increase and production decrease.

底水锥进是影响底水油藏开发效果的重要因素。

This article adopted equivalent filtrational resistance method and bottom water driving vertical critical speed to derive the calculation model of critical production pressure difference and the calculation method of critical production capacity in bottom water reservoir exploitation based on the mechanism of bottom water coning of horizontal wells in bottom - water reservoir.

分析了垂向渗透率、油水密度差、水平井位置、油水粘度比以及底水锥进高度等参数对临界生产压差的影响,其结果对水平井开发底水油藏确定合理的生产压差具有指导作用,为底水油藏水平井产能设计提供了参考依据。

To inhibit bottom water coning, the chemical agents such as polyacrylamide etc.

为了抑制底水锥进 ,采用人工方法 ,在油井裸眼的下部挤入聚丙烯酰胺等化学剂 ,形成弹性隔板 ,以扩大水驱油体积 ,控制含水上升 ,改善油藏开发效果。

Sidetracking horizontal wells were used successfully to control the water coning occurred in Hongnan oil field, hence the development and the economy benefits of the block were improved.

红南边底水油田在开采过程中出现了锥进问题,通过应用侧钻水平井新技术治理底水锥进获得了成功,提高了区块开发效果,获得了较好经济效益,为同类油藏的开发提供了可借鉴经验。

Edge and bottom water coning in Hongnan reservoir affects its recovery efficiency.

针对红南边底水油田,存在边底水锥进,影响油田开发效果的问题,我们开展了边底水锥进的预防、治理调研工作。

After being developed with vertical well patterns during the past decade,the Leng 41 block of Liaohe oil field,as the typical heavy oil reservoir with edge and bottom water,became degraded with the energy,serious with bottom water coning and worse with development condition,which led to the serious reduction of recovery ratio and much more oil remaining underground.

辽河油田冷41块为典型的边底水稠油油藏,经过多年直井井网开发后,地层能量衰减,且底水锥进严重,开发状况不断恶化,导致采收率大幅度降低,大量剩余油滞留地下无法采出。

A rotating cone shaped reactor has been designed for studying pyrolytic process of coal particles mixed with a heat carrying medium.

设计出一种旋转锥式煤热解炉,对炉内煤颗粒热解过程进行实验研究,测定了煤颗粒平均粒径、热解温度、旋转锥旋转速率及煤热解失重的关系。

Aiming at rotating cone feeders used in annular spouted beds,the influence of spouting air velocity and the amount of hold-ups on particle mixing has been investigated.

针对环形喷动床采用旋转锥播料器对环形空间给料的方法,研究喷动风速和床上物料量对颗粒混合规律的影响。

At present,the study on Rotating cone flash pyrolysis and liquefaction unit of biomass is a focus and the core of this technology is the design of rotating cones.

转锥式生物质闪速热解液化装置是当今研究的一个热点,而该技术的核心就是对旋转锥设计。

Relation of variation between helix cone angle and the lowest safety factor revealed that when guiding helix bit was under pressure,the safety factor increased with the helix cone angle enlarging simultaneously,and would reduce at a certain value.

从螺旋锥角与最低安全系数变化关系中得出,当引导螺旋钻头承压一定时,其安全系数随着螺旋锥角增大而增大,但增大到一定值时又随之减小。

Applied Research on Preseparation of Short Cone Cyclone before Separation of Bismuth

短锥旋流器在选铋前的预选应用研究

spiral flute machine reamer with taper shank

锥柄螺旋槽机用铰刀

equal spiral angle taper cylindrical milling cutter

等螺旋角锥度柱铣刀

tapered tube rotameter

锥形管柱式旋转流量计

Screw-worm Emergency Centre for North Africa

北非螺旋锥蝇应急中心（螺旋锥蝇应急中心）

The ortho cone helicoid was used interrsect intercept by the ortho cone helicoid and the cylinder.

正圆锥螺旋面是正圆柱螺旋面被同轴正圆锥面截得。

Optimum Design of a Forming Roller for Power Spinning Process of Conical Parts with Transverse Inner Ribs

带横向内筋锥形件强旋成形过程旋轮优化设计

carbide taper shank endmill with spiral teeth

硬质合金螺旋齿锥柄立铣刀

Conical shaft extension for rotating electrical machines

GB/T757-1993旋转电机圆锥形轴伸

spiral bevel milling cutter head sharpening machine

螺旋锥齿轮铣刀盘刃磨床

Double Spiral Fluting Tap, a New Type Threading Tool

一种新型的螺纹工具——双螺旋槽丝锥

The Contact Region Anasyis of the Kilngelnberg Spiral Bevel Gear;

克林根贝格螺旋锥齿轮接触区域分析

A Simulating Analysis for Spiral Bevel Gear Meshing in Aerostat Reducer;

航空减速器螺旋锥齿轮啮合仿真分析

Study on the Characteristics of the XD-1 New-style Taper Spiral Packing;

XD-1新型锥度螺旋填料的特性研究

Research on the Error Correcting Technology and Application of Spiral Bevel and Hypoid Gears

螺旋锥齿轮加工误差分析与应用研究

Rattling response of vibration lapping of spiral bevel gear

螺旋锥齿轮振动研齿系统的拍击响应

Difference Surface Model Establishment and Simulation in Spiral Bevel Gear

螺旋锥齿轮差曲面模型的建立与仿真

Optimization of the large cone angle parameters of downhole oil/water separation hydrocyclone

井下油水分离旋流器大锥角参数优化