查询词典 casing head

To avoid lost circulation or wellbore instability when drilling fluid circulated downhole after gas drilling, or to shorten drilling cycle and reduce drilling costs, it is recognized that the cementing quality needs to be improved further. 18 dry-hole cementing jobs have been tried in 339.7 mm and 244.5 mm holes in Sichuan and Chongqing oil or gas fields and a set of technology for dry-hole cementing after gas drilling is developed, including wellbore preparation, casing running, incontinuous liquid slurry injection, etc.

为了避免气体钻井结束后替入钻井液可能引发的井漏、井眼不稳定等复杂情况，缩短钻井周期、降低钻井成本，进一步提高固井质量，在川渝地区探索实践了气体介质条件下339.7mm表层套管和244.5mm技术套管共18井次的干井筒固井作业，基本形成了一套气体钻井后干井筒（井眼内为纯气体时的井筒简称为干井筒）固井工艺技术方案与措施。

Into its high-strength foot portion, at least one nozzle tip is insertable; a high-strength heat-conductive envelope tube having a re-entrant outer shoulder adjacent the casing is joined to a separating sleeve of the shaft.

至少一喷嘴头可插入其高强度脚部内；有毗邻型箱的内陷外台肩的高强导热包封管接到轴的隔离套筒上。

The penetration rate was increased by using the laddering large hole casing design and optimized drill bits.

胜科1井是中国石化在胜利油田部署的一口重点科学探索井，完钻井深7 026 m，φ339.7 mm技术套管下深2 922.78 m，φ311.1 mm大井眼井段深达4 155 m，采用了阶梯式大井眼结构设计与钻头优选技术，提高了大井眼钻井速度。

According to the improved structure of a kind of hose lamp mentioned in claim 2, its features rest with: the above lightproof casing is lengthways embedded in the lightproof trail of the above cover.

根据权利要求2所述的一种软管灯改良结构，其特征在于：所述的不透光罩壳是一纵向相嵌在上述包覆层上的不透光轨道。

According to the improved structure of a kind of hose lamp mentioned in claim 2, its features rest with: the above lightproof casing is lightproof plastic layer extruded and shaped together with the above cover.

根据权利要求2所述的一种软管灯改良结构，其特征在于：所述的不透光罩壳是与所述的包覆层一体挤出成型的不透光塑料层。

According to the improved structure of a kind of hose lamp mentioned in claim 1, its features rest with: it includes a lightproof casing that is lengthways set on the above cover and used to keep out the side light of LED bulb.

根据权利要求1所述的一种软管灯改良结构，其特征在于：包括一纵向设置在上述包覆层上、用于遮挡LED灯泡的侧光的不透光罩壳。

Go up in major video website, the classified ad that only Baidu cereal song brings, game advertisement and website the promotion between each other; Ought hold advertisement of brand of video advertisement macrocephalic little however little, it is p reaper ground appears in webpage page to perhaps broadcast casing to go up only.

在大部分视频网站上，只有百度谷歌带来的分类广告、游戏广告以及网站彼此之间的推广；本该占据视频广告大头的品牌广告却少之又少，只是试探性地出现在网页页面或者播放框上。

By using nonoverlapping domain method,a 3 D viscous code had been developed to calculate flow field in a cascade with tip clearance and craping along casing.

本文给出了一种基于区域分解算法的可考虑动叶顶部间隙和机匣刮削作用的涡轮级计算方法。

Effects of chicken manure content, composting process, spawn running time and depth of casing on the fruiting characteristics of the wood blewit, Lepista nuda, were investigated in this study. The mushroom was grown on the compost prepared by indoor composting and two strains LA82 and LA84 were used throughout the experiment.

评估室内发酵堆肥中鸡粪之含量对紫丁香蘑出菇之影响，发现LA82和LA84两品系栽培在含有风乾稻草重20%鸡粪之室内发酵堆肥之产量较在含有40%鸡粪者为高，然而两品系从覆土至出菇采收所需时间并未受到鸡粪含量之影响。

During the design of perforated liner casing, small phase angle and proper larger diameter and density of perforation are adopted and initial ovalization is constrained strictly in order to improve the collapse pressure and area of passage.

建议在实际煤层气完井筛管设计过程中，采用小相位角，严格控制初始椭圆度，适当增加射孔直径和射孔密度，以达到提高筛管抗挤强度和增加过流面积的目的。

I was just taking her hand, to help her out of a car, and I knew it.

我只是握着她的手，扶她下车，但我知道这一切。

China and South Korea have excoriated Japan over its approval of new school books which they say whitewash the atrocities committed during Japanese occupation, and anti-Japanese protests have been held in Chinese cities. The lingering bitterness over Japan's past imperialism still threatens to mar relations between the big East Asian powers

中国和韩国强烈谴责日本通过新的中学历史教科书，他们认为这一教科书掩盖了日本在其占领期间所犯下的残酷暴行，反日抗议活动在中国数座城市发生，历史上日本帝国主义制造的痛楚无法被忘却，这有可能破坏东亚强国间的关系。