 Products
 Products   Casing centralizer series
 Casing centralizer series  Rigid centralizer
 Rigid centralizer
        It makes the casing centralized in wellbore and improves cementing quality.
	
	 
		Features:
	 
		 
		
1.Spiral blades increase annular turbulence. 
	
2.With its stream-lined shape,it enables casing to run easily in wellbore.
	
	
| Specification | type | OD(mm) | ID(mm) | Length(mm) | 
| YDGF—41/2in×6in | I、II、III | 145 | 116.5 | 200 | 
| YDGF—5in×6in | I、II、III | 145 | 129 | 200 | 
| YDGF—5 1/2in×8 1/2in | I、II、III | 205-210 | 142 | 200/300 | 
| YDGF—6 5/8in×8 1/2in | I、II、III | 205-210 | 171 | 200/300 | 
| YDGF—7in×8 1/2 in | I、II、III | 205-210 | 181 | 200/300 | 
| YDGF—7in×9 1/2in | I、II、III | 225-235 | 181 | 200/300 | 
| YDGF—7in×9 5/8in | I、II、III | 225-235 | 181 | 200/300 | 
| YDGF—9 5/8in×12 1/4in | I、II、III | 300-305 | 248 | 200 | 
| YDGF—13 3/8in×17 1/2in | I、II、III | 430-435 | 346 | 200 |