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BEIJING JIETAIHONGLI TECHNOLOGY CO,.LTD

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Full-Interlock Kelly bar

Jietaihaoli Group is a professional high tech trade enterprise, located in Beijing City, and branch company is at Shandong ,established in 2003. It is a professional manufacturer engaged in the research, development, production, sale and service of any type of kelly bar & drill tools on rotary drilling rig , and sales any accessories of rotary drilling rig, and exports the used rotary drilling rig.
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  Full-interlocking Kelly bar is composed of three weld-on ribs with continuous  concave and convex  keys  During the drilling process, the downward thrust is transmitted to drill bucket directly by rotation power of  Rotary head inner ribs and Kelly bar outer ribs at any time .

    This type of Kelly bar is the best one of transferring pressure at present , especially for hard ground and frozen oil layer construction. In the drilling process , every continuous steps can form pressure point to reduce  wear and tear of local pressurization key lines, also to avoid the stick problem that Kelly pipe is deformation always in a part pressurization. When drilling progress, driving  the inner  convex concave tooth key and the outer convex concave tooth  key  uniformly forms good engagement, the advantage is force uniform, not easy to stick pipe, particularly to improve work efficiency .  It has gotten high praise from home and abroad rotary rig user.
    This type Kelly bar has applied for patent, the patent No. is 201420542679.2.

 

序号
No.

钻杆外径
OD

  节数
Section

加压键形式
Way of crowding

单节长度
Length of per section(m)

参考深度
Drill depth

额定扭矩
Torque

1

¢299

3

4

全锁扣式(multi-lock)

9-14

24-50

100-120

2

¢342

3

4

全锁扣式(multi-lock)

9 - 14

24 - 50

100 -120

3

¢355

3

4

全锁扣式(multi-lock)

9 - 14

24 – 50

100-120

4

¢368

3

4

全锁扣式(multi-lock)

9 - 14

24 – 50

150-180

5

¢377

3

4

全锁扣式(multi-lock)

9 - 14

24 – 50

150-180

6

¢394

3

4

全锁扣式(multi-lock)

9 - 15

24 – 55

180-200

7

¢406

3

4

全锁扣式(multi-lock)

9 - 15

24 – 55

180-200

8

¢419

3

4

全锁扣式(multi-lock)

9 - 15

24 – 55

200-230

9

¢440(445)

3

4

全锁扣式(multi-lock)

9 - 15

24 – 55

220-260

10

¢470(482)

3

4

全锁扣式(multi-lock)

9 - 15

24 – 55

230-280

11

¢508

3

4

全锁扣式(multi-lock)

9 - 16

30– 65

260-360

 

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JieTaiHongLi

BEIJING JIETAIHONGLI TECHNOLOGY ,CO,LTD

Add: 3-1903, Ronghua xintai International Building. Yizhuang Beijing, China,100176

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