OUR PRODUCTS
OUR PRODUCTS
OUR PRODUCTS
NSJSC5 LOSSLESS STOP COLLAR

NSJSC5 LOSSLESS STOP COLLAR

SHUANGJIA NSJSC5 Lossless Stop Collar is a new patented product manufactured by us, which has solved the common problem: it is possible to destroy the coating on the casing. It is manufactured of corrosion-resistant steel pipe with a special rubber coated onto the inner steel plate. While installing, it can be directly installed onto casing and then fixed by screws. The screw force is working on the inner steel plate, compressing the rubber against the casing, with the absorbing effect onto casing, no easy for sliding or moving, which can prevent casing from damage. It is featured in easy installation, good retaining effect, mainly suitable for well condition containing high content of H2S, CO2,, with significant advantage. /TYPE: Screw Stationary /SPECIFICATION:For 4-1/2" to 20" 

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NSJSC4 ENFORCED STOP COLLAR

NSJSC4 ENFORCED STOP COLLAR

SHUANGJIA NSJSC4 Enforced Stop Collar is manufactured of premium seamless steel pipe, directly installed onto casing and fixed by using screws. It is featured in easy installation, good retaining effect, suitable for various casing and wellbore condition, wide application. /TYPE:Screw Stationary /SPECIFICATION:For 4-1/2" to 20" 

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NSJSC3 STOP COLLAR

NSJSC3 STOP COLLAR

SHUANGJIA NSJSC3 Stop Collar is manufactured of premium steel plate, fixed on casing first using chain and then by pin latching into groove. It is featured in easy installation, suitable for wellbore with large annulus. /TYPE:Hinged /SPECIFICATION: For 4-1/2" to 20" 

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NSJSC2 STOP COLLAR

NSJSC2 STOP COLLAR

SHUANGJIA NSJSC2 Stop Collar is manufactured of premium steel plate, directly installed using pin to fix onto casing. It is featured in easy installation, suitable for various casing and wellbore condition. /TYPE: Pin Stationary /SPECIFICATION: For 4-1/2" to 20" Casing  

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NSJSC1 STOP COLLAR

NSJSC1 STOP COLLAR

SHUANGJIA NSJSC1 stop Collar is manufactured of premium steel plate, fixed onto casing by screws. It is featured in easy installation, with defect only used in wellbore with large annulus, if small, possibly to cause damage to well wall.

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