Mechanical Hydraulic Stage Cementing Collar
Specifications
Dual Stage Cementing Collar
1. Mechanical/Hydraulic Stage Collar
2. Single/Two Plug
3. Size: 5-1/2-13-3/8"
4. API approval Manufacturer
Dual Stage Cementing Collar
Usage:
You run pattern cement case head on the sleeves used for cementing process don open the casing run stopper, body with a short section of pipe connected by ladder buckle.
Characteristics
1. Compact, easy to connect
2. Indicator monitoring stopper running
3. Body and short sleeve button connected by ladders
4. High strength materials and high quality thread to ensure it meets quality and performance requirements
5. Manifold connections, as required by the selection Union
1. Hydraulic stage cementing collar
The hydraulic stage cementing collar features inner closing structure, opening through pressure difference. The closing plug drives the closing sleeve down and then shuts circulating ports.
Features:
1, Openging pressure can be adjusted and it is not subjective to hole angle or mud properties for operation.
2, The pressure-relief design prevents fluid trapping and compression during the closing phase of the tool's operation.
3, 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 the closing sleeve.
4, The inner seats are made of an easily drillable butyronitrile rubber/aluminum material. Both the opening and closing seats lock against rotation for easy drillout.
2. Property Parameters
Specifications, mm
Φ 139.7
Φ 177.8
Φ 244.5
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