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It makes the casing centralized in wellbore and improves cementing quality.
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.
Technical parameters
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 |
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