查询词典 lower casing

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。

Wei Hua company's products: Taiwan's high-power Lampholders series; Taiwan Gold Fountain Pen Co Series Terminals, the terminal blocks, the line deduction, caretakers, sets national certification switch; national certification plug; certification thermal casing, the casing of silicon, PVC casing; other parts wiring, lighting plastic accessories.

华伟公司经营的产品：台湾高权灯头系列；台湾金笔系列接线端子、端子台、线扣、护线套；各国认证开关；各国认证电源插头线；认证热缩套管、矽质套管、PVC套管；其它配线零件、灯饰塑胶配件。

After 5~1/2" casing pipes having been corrupted and punched, Caiyou Wuchang in Zhongyuan oil field carried out well workover with 4" casing pipes, but it is impossible to pump with big pump and the pump setting depth is limited .Consequently, Caiyou Wuchang directly makes 4 casing pipes as lift pipe string without tubing to pump oil.

中原油田采油五厂原5 1/2&套管严重腐蚀穿孔，下4&套管修井作业后，无法在小油管内实现大泵提液，同时限制了下泵深度，因此，直接将小套管作为举升管柱进行抽油。

Bilirubin and heparin sodium etc. are also produced. The pigs ' intestines casing is mainly used in making sausage, ham, red sausage and other foods. The sheep ' s intestines casing produced in this factory casing can be used in medical, piano string and feather bat etc.

猪肠衣主要用于制造香肠、香肚、火腿、红肠以及灌制各种食品，羊肠衣除用于制造各种食品外，还广泛用于医学缝合线、钢琴弦、羽毛球拍等制线产品。

To prevent casing damage and expand well life, a thick wall casing, TP130TT of high collapsing strength was designed and developed, based on the analysis to the mechanical conditions of casing and its damaging tendency in the salt bed. The matching technology and tools were also developed.

因此 ，防治套管损坏，延长油水井寿命，已是中原油田当前亟待解决的问题。1 油水井套管损坏的主要原因由于中原油田是一个复杂断块油气田，不同的区块和同一区块的不同部位，套管损坏的规律和造成套管损坏的因素都有很大的差异。

The casing strength design charts presented by this paper can be used to check the safety of the casing in salt bed or help perform casing strength design when the load is known.

可用来检测盐岩等流变地层中下入套管的安全性或在已知套管外载时进行套管强度设计。

Most casing damages in Zhongyuan oilfield take place in the salt bed formations, and this has remained a problem that seriously threatens oil and gas production for long time. Causes of casing damages were investigated, and a series of measures in casing design have been adopted accordingly, but with unsatisfactory results.

中原油田由于地质结构复杂，断层纵横交错，油气埋藏深，又有多套盐膏层覆盖，再加上注采关系不够平衡，导致了一大批先期投产的油水井套损现象十分严重，这不仅造成了巨大的经济损失，而且破坏了注采关系，大幅度地降低了油气产量。

The present invention relates to a kind of tunable plasma resonant cavity for PCVD optical fiber perform rod processing machine. The tunable plasma resonant cavity includes cylindrical resonant cavity casing and cut-off waveguides set on two ends of the casing, and features the tuning piston, which is set on one end of the cylindrical resonant cavity and has middle part with through hole and back end stretched beyond the casing.

本发明涉及一种用于PCVD光纤预制棒加工机床的可调谐等离子体谐振腔，包括有圆柱型谐振腔壳体，在圆柱型谐振腔壳体的两端设置截止波导，其不同之处在于在圆柱型谐振腔腔体的一端安设调谐活塞，调谐活塞的中部开设通孔，后端延伸至圆柱型谐振腔壳体外端。

Application of pint-size surface casing in the Course of Drilling in Bamianhe Oilfield is successful by the contrast of before surface casing and the present pint-size surface casing ,as well as practical effect in production.

通过对以往钻井表层套管和目前小尺寸表层套管的对比，以及在实际生产中的效果分析，表明小尺寸表层套管在八面河油田钻井的应用是成功的，在满足地质、采油、作业需要的同时节约了钻井成本。

The results were summarized as followings: the density of planktonic crustacea in middle reach was higher than that in the lower reach whereas the species abundance and community diversity index in the lower reach were higher than that in the middle reach; the planktonic crustacea communities presented high density but lower diversity in the upper part of the middle reach, lower density but high diversity in the lower part of the middle reach and estuary, and lower density and diversity in the lower reach except the estuary.

结果表明，汉江中下游江段浮游甲壳动物的密度分布呈现出中游高于下游的特征，而物种丰度和群落多样性指数则是下游高于中游；中游上段的属于密度高但多样性低的群落、中游下段和汉江口属于密度较低但多样性高的群落，下游除汉江口外属于密度和多样性均较低的群落。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"