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1·It is a most popular and common occurrence that pressure changes in production casing.

在油气井中，油层套管内压力变化是最普遍、最常见的一种现象。

2·The production casing cementing problems in Tahe Oilfield in 1998 are analyzed, and the main reasons causing low cementing quality are found.

针对塔河油田1 998年生产套管固井质量存在的问题进行了分析，找出了影响固井质量的主要因素。

3·A completion configuration in which a production casing string is set across the reservoir interval and perforated to allow communication between the formation and wellbore.

一种完井结构，其中的生产套管柱下过储层层段并经射孔，以便在地层与井筒之间能够连通。

4·Casing impairment leads to loss of pressure integrity, pinching of production tubing, even an inability to lower workover tools.

套管损坏会导致压力完整性破坏、生产油管磨损，甚至无法下入修井工具。

5·Is a professional production and sales of collagen casing manufacturers.

是一家专业生产销售胶原蛋白肠衣的厂家。

6·It is introduced in brief that the domestic and foreign employed situation of straight welded casing, manufacture technology and production condition, and some researches being done at present.

简要介绍了直缝焊套管国内外使用情况，生产技术以及国内外生产现状，目前正在进行的一些试验研究工作。

7·The company has introduced international advanced level of the drainage pipe casing pipe fittings and electrical production, testing equipment and technology.

公司引进具有国际领先水平的给、排水管材管件及电工套管生产、检测设备和技术。

8·In casing production straightening determines the shape precision and residual stress in casing, which have strong influence on the collapse resistance of casing.

套管生产中，矫直工序决定了套管的形状精度和残余应力，对套管抗挤强度有很大影响。

9·A threaded coupling used to join two lengths of pipe such as production tubing, casing or liner.

连接两节管子(生产油管、套管或衬管等)所用的带螺纹的连接件。

10·The advantages of the production for the aluminium alloy casing with backward extruding technology replacing multi-pass ironing technology are marrated.

叙述了用反挤压工艺代替多道变薄拉伸工艺生产铝合金外壳的优点。