1·What is the drill pipe string weight in air?
钻杆在空气中的重量是多少？
2·Sound can be in the pipe string, can be in ancient books.
声可托于弦管，名可留于竹帛。
3·In order to solve this problem, the pipe string for pumping thick-oil is designed.
为解决偏远井及偏远区块的稠油井井筒举升的问题，设计此稠油管柱。
4·Pipe string structure, mechanism of this technique, technique feature and application in field are introduced.
介绍了其管柱结构、工艺原理、技术特点及现场应用情况。
5·The gas lift valve on the conventional gas lift pipe string is easy to fail and cannot be replaced in the hole.
常用的气举采油管柱存在的问题是气举阀易失效，不能投捞进行更换，严重影响管柱的效率和使用周期。
6·Onsite test shows that the shearing rate applied by pipe string was less than 15% and its qualification is 100%.
现场试验表明，这种管柱对聚合物的剪切率小于15 %，层段合格率达到10 0 %。
7·Sectional optimization of reservoir: After the optimization, put into production directly without remove the pipe string;
储层分段改造：改造之后不动管柱直接投产；
8·The separated layer polymer injection pipe string consists of well-flushing packer, down-hole flow distributor and bottom ball.
分层注聚管柱主要由可洗井封隔器、配注器及底球组成。
9·Made up of oil expanding type or water expanding type expandable elastomer material, mechanical pipe string, centralizer and etc.
由油胀式或水胀式可膨胀弹性体材料与机械管柱、扶正器等构成。
10·The results of tests show that the technology pipe string is advanced and reliable and has an obvious social and economical benefit.
经室内试验和现场试验应用证明，该工艺管柱技术先进，换层可靠，经济效益和社会效益明显。