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BEIJING JIETAIHONGLI TECHNOLOGY CO,.LTD

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Bored piling kelly bar

Interlock Kelly bar

Friction Kelly bar

Full-Interlock Kelly bar

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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-Interlock Kelly bar

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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

Full-Interlock Kelly bar

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Lead Time , Delivery Time , Payment Term

Beijing is the center of the accessories supply.The goods could be sent to your hand in the shortest possible time by air express delivery, China Railway Express,FedEX,Post EMS,DHL China etc.we do good cooperation with the Tianjin,Qingdao ,Shanghai port etc. my forwarder provide the best sea & air transport service ,time-delivery .

2020-12-29

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BEIJING JIETAIHONGLI TECHNOLOGY ,CO,LTD

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

Tel：86-536-5898001

E-mail：haoronghui@chinajthl.com

Category

Bored piling kelly bar 

Interlock Kelly bar

Friction Kelly bar