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Zhengzhou Diamond Superhard Tools Co. Ltd.
Tel: +86-371-67770067
Fax: +86-371-67770119
Email: postmaster@dam-superhard.com
Url: http://en.dam-superhard.com
Address:Dingzhuang industrial park, Xushui,Zhengzhou, Henan, P.R.China
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Casing Anti-wear Sub



This product can be connected to the drill pipe to form a brace to avoid drill pipe connection wearing casing as well as reduce torque to protect the drill pipe and obviously reduce friction between drilling strings and casing, which leads to increase frictional and torsion loads. it may solve the problems of casing wear and down-hole drilling accidents caused by them, such as pipe sticking, lost circulation and oil, gas channeling as wellhead. The products are widely used in high-angle deviated directional well, horizontal well, conventional directional well, deep well and lateral well according to drilling requirement. 

 

Model
Working length
∮(mm)
Outside Diameter
(mm)
Waterhole I.D.(mm)
external threaded
Lubrication
Strength Grade
FM-146
915
148
68
NC38
Drill Fluid
The same as that of Drill rod
FM-197
915
197
75
NC50
FM-240
915
240
90
5 1/2〃
 

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TEL: +86-371-67770067 FAX: +86-371-67770119 E-mail: postmaster@dam-superhard.com Add:Dingzhuang industrial park, Xushui,Zhengzhou, Henan, P.R.China  全网营销技术支持:郑州征途信息(让您的营销收益翻倍!)