查询词典 casing

Metallurgy of the producer well tubing, casing, safety valves and topsides is not consistently sour safe and retrofitting would have rendered the waterflood project economics unviable.

产油井井管、套管、安全阀及顶部结构等的金属特性并不全具有防酸性能，而对这些设备进行更新改造，将使该注水驱油工程在经济上变得不可行。

With the wildly use of casing in Petroleum Industry, how to improving the life and anti-galling ability of oil tube is more and more paid attention to .

随着油管在石油工业中的大量应用，如何提高油管寿命和抗粘扣性能越来越受到人们的重视。

Experimental study on the anti-pressure capability of oil casing tube of perforation segment of oil layer［J］.

油层射孔段套管抗挤压能力的实验研究［J］。

With the deterioration of oil extracting condition and the increasingly high demand of the performance of the oil well tube , the development of high performance oil well casing has a vital practical significance.

随着采油条件越来越恶劣，对油井管的要求也越来越高，研制高性能油井套管有着重要的实际意义。

Commonly used casing hardware includes guide or float shoes, float or landing collars, centralizers, scratchers and cement baskets.

普遍使用的套管柱配件包括引鞋或浮鞋、浮箍或坐放箍、扶正器、刮泥器和水泥伞。

I'm not conversant with the theory behind this new fuel converter. What causes the conversion and why does it have a convex casing?""I'm not sure how it converts fuel to energy," Tom replied with a contrite smile."But their salesgirls are very convincing. Tom returned his attention to the attractive young salesgirl.Contrary to popular belief, attending an automobile

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There are generally 3 types of sand production: the output of inorganic profile control agent in Mongolia Oilfield (grain size between 0.05 and 3 mm); the output of cement paste with formation debris (grain size between 0.03 and 8mm) in Xilin Oilfield caused by casing failure; and the output of loose sand grains in Hanan Oilfield and Anan Oilfield.

这些出砂没有形成规模，只出现在个别的井组和单井。因此本着少投入，多产出的原则，对国内的机械防砂和化学防砂技术进行了对比，取其长处，形成了适合二连油田的筛管悬挂式防砂工艺、简易防砂管柱技术和防砂泵防砂3项技术。

The body and keypad of the phone is rubberised and the casing is made of stainless steel.

手机机身和键盘局部覆有橡胶，外壳是不锈钢的，给人坚固和可依赖的感觉。

Headlines features of the 5500 include an instant swap key for switching the phone into different modes, a 3D sensor which enables pedometer functionality for sports tracking and an alternative interaction method, text to speech capabilities for various functions, and an active (stainless steel and rubberised casing) orientated design.

突出的功能包括快速功能切换键以在三种模式间切换，一个三维感应器从而能让手机用作步数计，一个可供选择的互动方法，文本阅读能力，以及面向户外运动的设计。

The air-filled porosity, water retention and water released under -2.16 kPa —-17.28 kPa of the casing soils increase with the increasing in the ratio of peat to soil.

理化性状分析结果表明，不同泥炭比例覆土的空隙度、持水率，以及在-2.16 ~-17.28 kPa水柱牵力下的水份释放量，都随着覆土中泥炭含量的增大而增大。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。