查询词典 casing head

The conclusion is that the casing structure should be optimized during gear box casing design to ensure sufficient safety factor at loading area of the casing.

传动箱箱体在设计过程中应优化箱体结构，确保箱体受力部位具有足够大的安全系数。

The casing strength is analyzed and displacement nephogram and stress distribution nephogram of the casing are obtained. The results show that the direct reasons causing the casing crack are local stress concentration and inadequate material strength.

通过分析得出箱体的位移分布云图和应力分布云图，结果表明箱体出现裂纹故障的直接原因，是箱体局部应力集中，材料强度不够。

Model JSQWG casing air slips is an ideal tool for handling casing by combining with hydraulic casing power tong.

JSQWG型气动套管卡瓦是用于石油钻井下套管作业的一种理想的井口机械化工具，该卡瓦配合液压套管动力钳进行下套管作业。

When complete a deep and ultra-deep well casing program, especially a gas well, strength design, thread sealing design and anticorrosion design are needed to introduce. Meanwhile, many factors including external loadings, casing strength models selection, plastic rock creep stress, intermediate casing wear, temperature effect, thread air tight ability are necessarily considered.

认为对于深井超深井套管，尤其是气井必须引入强度设计、密封设计、防腐蚀设计，需要从外载的计算、强度模型的选择、塑性岩石蠕动引起的载荷、技术套管磨损、温度效应、螺纹的密封性以及套管本身强度的选择等方面进行研究。

While making-up with casing tongs, the recommended torque for both standard round thread casing and buttress thread casing is given in Annex A and Annex B respectively.

2.5采用套管钳上扣，标准圆螺纹套管及偏梯型螺紋套管的旋合扭矩推荐值分别见附录八、附录

The difference between the calculating results of gas-oil rate considering or neglecting casing gas is compared. It is demonstrated that bigger error will be caused without considering casing gas. When the pressure at the casing shoe is lower than the babble point pressure, there is a certain proportion relation between the easing gas production and the submergence pressure as well as the easing-tubing sectional area ratio.

针对放套管气生产油井，现场测试了多口油井的套管气量，比较了考虑套管气与忽略套管气对气油比计算结果的差异，证明忽略套管气产量会给气油比计算结果带来较大偏差。

In the design of expension tool, the cone angle is the key, because it must satisfy the plastic extreme condition of the expension tube and reduce the upgoing frictional resistance of the expension cone to minimize the possibility of tool sticking. It is preferred that the material quality of expension tube must differs from that of casing and the yield limit of expension tube must be less than that of casing, which is favorable to protect casing.

在膨胀工具结构设计中，锥角设计是关键，除了要满足膨胀管达到塑性极限条件外，还应综合考虑膨胀锥上行的摩阻尽可能小，以减小工具卡死的可能；膨胀管的材质应与套管材质有差异为好，并且膨胀管的屈服极限应小于套管的屈服极限，这样有利于保护套管。

Based on finite element dynamic model of expansion casing with rubber sleeve, casing deformation and stress change inside casing, contact pressure at both sides of rubber sleeve and expansion parameter changes caused by friction factors during the expansion are analyzed.

根据带有橡胶筒的膨胀套管有限元力学模型，对套管膨胀过程中橡胶变形和套管内的应力变化、橡胶筒两侧的接触压力，以及摩擦因数引起的膨胀参数变化等做了分析研究；对橡胶筒的厚度、长度做了定量和定性分析，发现在橡胶与套管之间的接触摩擦因数作用下，橡胶过长将会在纵向产生&堆积&现象，在有限空间中，使其受较大的接触压力而失效。

The main products include 2715 PVC fibred-glass tubing, self-extinguishing silicone tube, Chatham acid ester glass tube, silicone rubber paint tube glass, PVC Casing Series(hardy tube, tube migration-resistant, non-toxic PE pipe, pipe stripes), plastic casing fibred outside silicone rubber, plastic outer casing fibred silicone rubber, polyester film insulating paper, fibred paper.

主要产品有2715聚氯乙烯玻璃纤维套管、硅树脂自熄管、内烯酸酯玻璃漆管、硅橡胶玻璃漆管、PVC套管系列：耐寒管，耐迁移管，无毒PE管，条纹管，硅橡胶内胶外纤套管、硅橡胶内纤外胶套管、聚酯薄膜绝缘纸、纤维纸。

The Casing Scraper is used to clean cement, mud, embedded bullets, rust, mill scale, paraffin, perforation burrs and other substances from the inside walls of casing. Maintaining a clean casing I. D. is important to the operation of all tools used in drilling the well.

套管刮削器的主要用途是清除井下套管内壁的水泥、沙土、残留子弹、划痕、石蜡、毛刺以及其他附着物，保护套管内壁的清洁，以利所有钻井工具的正常作业。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了