API Hydraulic Stage Collars
group namecementing tools
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Min Order1 piece
modelSINOTAI
payment methodL/C, T/T, Western Union, MoneyGram
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update timeTue, 09 Oct 2012 23:32:08 GMT
Paramtents
material alloy steel
certificate API
type hydraulic
Packging & Delivery
Min Order1 piece
Briefing
Hydraulic Stage Collars features an opening sleeve with area differences on opposite ends.
Detailed
| Uses | |
| Model HY Hydraulic Stage Collars features an opening sleeve with area differences on opposite ends | |
| that allows it to be manipulated hydraulically. The hydraulic-opening feature makes this model stage collar's | |
| use very practical in horizontal wells. And also, in certain applications, liners run with drill pipe can be run in | |
| conjunction with one or several inflatable packers and used to isolate and selecti-vely cement certain casing intervals. | |
| Features | |
| ●A metal-to-metal seal and an O-ring seal between stage collar body and the bottom sub make seal reliability. | |
| ●A reduced length of the tool minimizes the effect of bending stresses. | |
| ●The seals providing internal and external pressure integrity are housed in the stage collar body and remain | |
| stationary throughout operation,minimizing chances of their being damaged. | |
| ●The pressure-relief design prevents fluid trapping and compression between the opening device and | |
| the closing plug during the closing phase of the tool's operation. | |
| ●A reliable lock-ring locks the closing sleeve upward when in place. | |
| ●Both the opening and closing sleeves lock against rotation for easy drill-out. | |
| ●A minimum amount of aluminum and rubber are the only materials encountered during drill-out. | |
| ●No welds are used on any portion of the tool. | |
| ●Material made of tool can be up to 135ksi minimum yield, including aterial suitable for sour gas service. | |
| ●Opening pressure values that can be adjusted at the time of assembly to suit inflatable packers or other hydraulic tools. | |
| ●The ability to open immediately upon the completion of first stage cement displacement. | |
| ●All premium threads are available. | |
| Specification | |
 | |
Note： | 1. | Standard material:N-80.Special material by order. |
2. | For API 8-round short,X=1; | |
| For API 8-round long,X=2; | ||
| For API buttress,X=3. |
