查询词典 casing spear

Keywords casing drilling;drill shoe;batch drilling;Dagang Oilfield

套管钻井；钻鞋；批钻井；大港油田

The idea that the casing shoe resistance and the crushing strength of the LCM must be considered when design the density of the drilling fluids is presented. It holds that the surface pressure should be junior to the crushing strength of LCM, in order to prevent the formed bridge plug from crushing.

提出设计井内堵漏钻井液密度时，必须同时考虑套鞋处破漏压力和桥接材料的抗压强度对井内压力的限制；认为提高压力敏感性裂缝地层承压能力的堵漏作业时，井口压力应不超过桥接材料的抗压强度，以保证裂缝内已形成的堵塞隔墙不被破坏。

Drill cement with seawater and then displace the new mud into the hole as drill ing out of the casing shoe.

用海水钻水泥塞，钻到套管鞋时替入泥浆。

Then the responding and flow disturbing characteristics of the valve are studied by means of both linearized analysis and numerical simulation. At last the performances are compared with the conventional ones and the influences of the clearance between spool and valve casing are also discussed.

第二章提出了利用阀芯的双运动自由度及毛细阻尼管沿程压力特性设计流体控制元件的基本思想，并叙述了按该思想设计的流体换向阀、流量控制阀及压力阀的工作原理和性能特点。

A hydraulic self-sealed swab bing wellhead assembly with anticollision crown;2. An economical and safe casing swab bing tool;3. If sand is not sunk, by operation of swab to build a different pressure between up and down of sunk sand to form a de- terminate pressure stir makes the sand to sink to reach the objective of unstuck.

冲管解卡工艺是将小直径的管柱下入到油管中，在油管中建立液流的循环通道，利用该通道把砂子带到地面，一直冲洗到人工井底，给油管外的砂子下沉留有一定的口袋；若砂子不下沉，可以通过抽汲在沉砂上下建立压差，形成一定的压力激动，使砂子下沉，达到油管解卡的目的。

Sew the ends to the facing then with a catch stitch, cover the boning with a loose thread casing.

缝纫贴边两端，然后用三角针线迹在羽骨上缝一个宽松的线筐。

Celery seed essential oils were extracted for tobacco casing by different methods including supercritical carbon dioxide fluid extraction(SFE-CO_2), simultaneous water distillation-solvent extraction and organic solvent extraction.

应用超临界CO2流体萃取(SFE-CO2)、同步水蒸气蒸馏-溶剂萃取和有机溶剂提取方法提取芹菜籽中的香味成分，对不同提取方法制备的芹菜籽精油进行了得率、制备工艺、闻香评价、化学组成和卷烟加香应用效果等方面的对比研究。

Specializing in the production of a variety of GB and profiled products, main products has: M5-M100 nut and pull hair light mother, M5-M16 high-strength nuts, a variety of thin mother, thickening of the mother, the mother side, small buckle mother, nylon anti-sent home flange nut, chain roller, casing, pipe and other products gecko.

专业生产各种国标及异型产品，主要产品有：M5-M100毛螺母和拉光母、高强度M5-M16螺母、各种薄型母、加厚母、方母、细扣母、尼龙防送母、法兰螺母、链条罗拉、套管、壁虎管等各种产品。

There are three buttons mounted on the casing, namely two big ones on each side of the clock and the clock winder itself.

有三个按钮安装在套管，即两个大的每一方的时钟和时钟发条本身。

The sliding gear assembly consists of sliding shaft, sliding gear and sliding clutch. The sliding shaft coaxial with the driving shaft has one end stretched into the axial hole on one end one the driving shaft and the other end supported on the front end casing; and the driving shaft is fixed axially onto the pedestal.

滑动齿轮组件由滑动轴、连接在滑动轴上滑动齿轮、连接在在滑动轴上的滑动离合器组成；滑动轴与传动轴同轴；滑动轴的一端的伸入在传动轴的一端沿轴向所开的孔内，另一端支撑在前端壳体上；传动轴在轴向被固定在底座上。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。