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Contact Us
- Contact Person : Mr. fang zheng
- Company Name : Dezhou Rundong Petroleum Machinery Co., Ltd.
- Tel : 86-534-2620099
- Fax : 86-534-2621898
- Address : Shandong,Dezhou,No.1189, Xinhu Street ,Decheng District
- Country/Region : China
- Zip : 253000
Two-Stage Cementing Collar
Product Detailed
Related Categories:Other Mechanical Parts
Related Product Searches:Two-Stage Cementing Collar,High Quality,stage cementer, cementer,SJG-A
1. Inner-closing design
2.The upper & Lower sub inner diameter is same as that of casing
3.Continous cementing allowed
Related Product Searches:Two-Stage Cementing Collar,High Quality,stage cementer, cementer,SJG-A
Stage Cementer
With inner-closing design,the SJG-A stage cementer can realize permanent self-locking after closing.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.The I.D. of upper/lower sub is the same as that of casing,but smaller than that of closing sleeve,which can minimize chances of damages to closing sleeve.The inner seats are made of an easily drilled butyronitrile rubber/aluminum material.Both the opening and closing seats lock against rotation for easy drillout.It is used in the operation of continuous cementing with pumping-down opening plug.* Parameters
Specifications mm | Φ177.8 |
O.D. Max. (mm) | 208 |
Drill-out I.D.(mm) | 155 |
Overall length (mm) | 1182 |
Rated load,t | 170 |
Sealing Capacity (Mpa) | 25 |
Opening pressure (Mpa) | 7 |
Opening Force (kN) | 136 |
Closing pressure (Mpa) | 5 |
Closing Force (kN) | 95 |
Lower Sliding Sleeve I.D. (mm) | 115 |
Upper Sliding Sleeve I.D. (mm) | 125 |
Two-Stage Cementing Collar
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