ensures the security and regularity of the important function of components. Excellent attention has been compensated on environmental protection and strength preserving. We can supply a entire-assortment of energy transmission items like chains, sprockets and plate wheels, pulleys, gearboxes, motors, couplings, gears and racks.
cementing equipment assembly DV instruments for stage cmenting
1. Introduction
DV instrument is a EPTT resource utilised to complete the cementing operation in two instances. Primarily utilized in the subsequent situation, it primarily is made up of two-phase coupling (entire body), shut-off baffle, initial-stage plug and closing plug (see Fig. 1). Cost-free-drop opening plug is accessible upon request
2. Traits
two.one. An anti-rotation gadget is EPTTly deveXiHu (West EPT) Dis.Hu (West EPT) Dis.ed to avoid the synchronous rotation of closing sleeve and bits.
two.two. A specific structure is deveXiHu (West EPT) Dis.Hu (West EPT) Dis.ed to avoid the possible pre-shutoff of closing sleeve.
two.3. In the closing sleeve of shut circulation hole, close the locking system to prevent closure set on the back, to obtain everlasting closure.
2.four. All accessories, produced from high quality good quality rubber or EPT substance, have very excellent anti-rotating system that helps make drillout effortless.
two.5. Totally free-tumble opening plug and pumping-down opening plug are accessible to comprehend mechanical opening.
two.six. The ID. of higher/decrease sub must be the same as that of casing, but more compact than that of closing sleeve, which safeguards the closing sleeve from being damaged during tripping and drill out functions.
3. Parameters
| Requirements, (in) | five 1/2 quot | 7 quot | nine five/8 quot | 13 three/eight quot |
| Max OD, mm | Phi170 | Phi208 | Phi283 | Phi381 |
| Drill-out ID, mm | Phi122 | Phi155 | Phi220 | Phi315 |
| Overall Length, mm | 1082 | 1182 | 1222 | 1280 |
| Rated Load, t | 140 | 170 | 210 | three hundred |
| EPT capacity, MPa | twenty five | 25 | 25 | twenty five |
| Opening Force, MPa | thirteen | thirteen | thirteen | 14 |
| Closing Force, MPa | five | five | five | 5 |
| Lower Sliding Sleeve ID, mm | Phi85 | Phi115 | Phi176 | Phi203 |
| Higher Sliding Sleeve ID, mm | Phi95 | Phi125 | Phi197 | Phi285 |
