查询词典 casing head

The stress fields' distribution of the casing, cement, perforation and oil layer and the relationship between thestress of casing and the quantities of sand production were established in the paper.

大量出砂使地层结构承载能力下降，导致套管内外压力变化，在热应力的作用下，引起套管弯曲，使得局部应力集中，从而使出砂层段及周围的套管应力增加。

This paper studies the crank press on with magnesium alloy casing of the sheet metal stamping die design phones and technology system, studied blank temperature, mold temperature, lubrication conditions, and other factors of the magnesium alloy casing phone Stamping quality.

本文研究了在曲柄压力机上用镁合金板材冲压手机外壳的模具设计和工艺制度，研究了坯料温度、模具温度、润滑条件等工艺因素对镁合金手机外壳冲压质量的影响。

Drilling time will be lasted and lateral force on casing exerted by drill pipe will increase in case of drilling deep well, ultradeep well, high inclined hole, extended reach well and horizontal well, therefore, friction and wear between casing and drill pipe became a severe problem.

在深井、超深井、大斜度井、大位移井及水平井中，钻井时间延长、钻柱作用在套管上的侧向力增高，因此套管和钻柱的摩擦与磨损问题越来越突出。

ABSTRACT Drilling time will be lasted and lateral force on casing exerted by drill pipe will increase in case of drilling deep well, ultradeep well, high inclined hole, extended reach well and horizontal well, therefore, friction and wear between casing and drill pipe became a severe problem.

在深井、超深井、大斜度井、大位移井及水平井中，钻井时间延长、钻柱作用在套管上的侧向力增高，因此套管和钻柱的摩擦与磨损问题越来越突出。

Drilling time will be lasted and lateral force on casing exerted by drill pipe will increase in case of drilling deep well, ultradeep well, high inclined hole, extended reach well and horizontal well, therefore, friction and wear between casing and drill pipe became a severe problem.

钻杆接头与套管摩擦磨损问题的理论与试验研究套管磨损

Spraying are the main products: plastic shell fan, microwave plastic casing, electronics, said plastic shell,machine learning machine plastic shell, lighting and so on plastic casing.

现主要喷涂产品有：风扇塑料外壳、微波炉塑料外壳、电子称塑料外壳、早教机学习机塑料外壳、灯饰塑料外壳等等。

Every output end has a second casing tube, a filter plate and a collimator and the filter plate and the collimator are in the second casing tube.

每一输出端具有一第二套管、一滤波片与一准直器；其中准直器与滤波片皆设置于第二套管内。

The main body mechanism includes casing, screwed cover plate, upper lifting hook, non-return gear set and chain wheel set inside the casing, and cable clamping board assembly to avoid outer separation of the chain. The ratchet spanner mechanism has ratchet handle assembly fitted to the gear shaft, and the ratchet handle component of the mechanism is patched with gear shaft.

主体机构包括主体外壳和螺接在主体外壳下部的主体盖板，上吊钩配接在主体外壳上部；主体外壳内置防逆转的齿轮传动装置和链轮传动装置，两吊钩的开口部位装有防止链条外脱的卡索板组件；棘轮扳手机构中的棘轮手柄组件配接齿轮轴。

This would benefit much more for in tubing and casing strength design than just using the API 5C3 standard, because it can not only avoid the material loss but also guarantee the safety and reliability of tubing and casing material; moreover, it can provide important reference for the engineers to optimize the strength design and improve the quality in the manufacture of tubings and casings.

这要比单一用API 5C3设计油管、套管强度更合理，既避免了材料的浪费又能保证材料的安全可靠性。

Processing company main products are: a variety of steel grade, multi-threaded type of coupling casing oil, petroleum oil pipe coupling, oil casing thread processing.

公司加工的主要产品为：多种钢级、多种螺纹类型的石油套管接箍、石油油管接箍、石油套管的螺纹加工。

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。