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井井下

井井下

井井下

井井下

1

Most downhole power drills for horizontal drilling are constituted basically by positive displacement drills .

绝大多数的水平井井下动力钻具是以螺杆钻具为基础构成的。

2

Downhole water-producing-injection technology in the same well at marginal blocks of Shengli petroliferous province

胜利油区边缘区块同井井下采水注水工艺

3

Actuality and developing trend of carrying technology for instrument at down-hole in horizontal well

水平井井下仪器送进技术的现状及发展建议

4

Downhole Tools for Sidetracking Horizontal Wells in Shengli Oilfield

胜利油田侧钻水平井井下工具

5

A Underground Signal Digitalizer for Geophysical Well-logging

地球物理测井井下信号的数字化处理装置

6

Prevention and Treatment of Downhole Problems in Extended -reach Wells

大位移海油陆采井井下事故的预防与处理

7

Development of hydraulic control well servicing downhole switch

液控式修井井下开关的研制

8

Application of Plugging Releasing Technology in Longhui 2 Gas Well

龙会 2 井井下油管化学解堵工艺技术应用

9

On Downhole Tools for Special Casing Wells

特殊套管井井下工具技术综述

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