Oilwell Hydraulic Type DV Tool Oilfield Cementing Stage Collar 6 5/8"

• After-sales Service: 1 Year
• Warranty: 1 Year
• Certification: ISO 9001:2000
• Power Source: Hydraulic
• Operation Pressure: Atmospheric Pressure
• Applicable Medium: Crude Oil
• Model NO.: Stage Collar
• Structure: Plug-In
• Material: Cast Steel
• Power Type: Diesel
• Connection Thread: API 9 5/8‘’ Btc
• Opening Pressure (MPa): 14~16
• Thread Connection: Btc,Ltc,Stc
• Transport Package: Export Packaging
• Specification: 5 1/2", 7", 9 5/8", 13 3/8"
• Trademark: DEENPU
• Origin: China
• HS Code: 84314310
• Production Capacity: 5000

Product Description

Oilwell Hydraulic Type DV Tool Oilfield Cementing Stage Collar 6 5/8"

Use:

Hydraulic Stage Cementer features inner closing structure, opening through pressure 

difference. The closing plug drives the closing sleeve down and then shut circulation 

ports.

Features:

1. Opening pressure can be adjusted and it is not subjective to hole angle.

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 drill-out.

Technical Parameters:

Specifications, (in)	5 1/2"	7"	9 5/8"	13 3/8"
Max O.D., mm	Φ170	Φ208	Φ283	Φ381
Drill-out I.D., mm	Φ122	Φ155	Φ220	Φ315
Overall Length, mm	1082	1182	1222	1280
Rated Load, t	140	170	210	300
Sealing capacity, MPa	25	25	25	25
Opening Pressure, MPa	13	13	13	14
Closing Pressure, MPa	5	5	5	5
Lower Sliding Sleeve I.D., mm	Φ85	Φ115	Φ176	Φ203
Upper Sliding Sleeve I.D., mm	Φ95	Φ125	Φ197	Φ285