Zhongshi Mechanical Type Stage Collar for Cementing

• After-sales Service: Yes
• Warranty: 1 Year
• Size: 4 1/2"-13 3/8"
• Material: Alloy Steel
• Connection: API Reg/Premium
• Steel Grade: L80, P110
• Model NO.: Cementing Collar Mechanical
• Transport Package: Wooden Case
• Specification: API
• Trademark: Zhongshi
• Origin: Puyang China
• HS Code: 84314310
• Production Capacity: 100PCS Per Month

Product Description

Stage Cementer features inner-clothing configuration, opening through pressure difference. The closing plug drives the closing sleeve to shut the circulation ports.

Mechanical Stage Cementing Collar
 
Feature
1.Mechanical type
2.Top/Closing Plug and First Stage/Flexible Plug
3.Battle Plate/Free Fall Opening Device/Battle Plate
4.Available in sizes 5-1/2" to 13-3/8"
5.Free Fall Opening Device
 
Product Advantage
1. Mechanical Stage collar allows cementing of casing string in two stages. 
2. These collar set the standard for reliability, cost effectiveness, and ease of use with outstanding built-in features and quality. 
3. They are the collars of choice when drilling requirements call for proven technology and low risk. 
4. The compact, simple design minimizes the number of moving parts and makes the tools easier to handle.
5. The collar's clear opening and closing indications at the surface accommodate the hydraulic conditions of the well for safer, more efficient operations. 
6. The internal sleeves increase reliability and prevent premature opening from formation restrictions on applied pressures. 
7. It reduces total pumping pressure in long casing strings.
 
Technical Parameter

Size, 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