Completion DV Tools Mechanical Cementing Stage Collar 6 5/8" for Oilfield

• Certification: ISO, API
• Surface Treatment: Spray-Paint
• Material: Alloy
• Type: DV Collar
• Sample: Avaliable
• Application: Oil Drilling
• Model NO.: Mechanical Cementing Stage Collar 6 5/8"
• Cementing Collar Type: Mechanical Type
• Model: Mechanical Type Stage Collar
• Usage: Well Drilling Machinery
• Transport Package: Wooden Case
• Specification: 5-1/2" to 13-3/8"
• Trademark: ZS
• Origin: Henan

Product Description

Cementing Tool Mechanical Stage Cementing Collar

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

Technical parameter of stage cementing collar

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

Product's advantage
>>mechanical stage collar allows cementing of casing string in two stages. 
>>these collar set the standard for reliability, cost effectiveness, and ease of use with outstanding built-in features and quality. 
>>they are the collars of choice when drilling requirements call for proven technology and low risk. 
>>the compact, simple design minimizes the number of moving parts and makes the tools easier to handle. 
>>the collar's clear opening and closing indications at the surface accommodate the hydraulic conditions of the well for safer, more efficient operations. 
>>the internal sleeves increase reliability and prevent premature opening from formation restrictions on applied pressures. 
>>it reduces total pumping pressure in long casing strings.