China casing collar

It contains a check valve to permit fluid to pass downward but not upward through the casing. Float Shoe: Float show allow operator to maintain a constant fluid height inside the casing of a well. It functions similarly to the float collar but also serves as a guide shoe for the casing.

Without a float collar, the cement slurry placed in the annulus could U-tube, or reverse flow back into the casing. The greater density of cement slurries than the displacement mud inside the casing causes the U-tube effect. We have been committed to being the world's leading suppliers and technical service providers in petroleum equipment industry.

It can adjust floating power of the casing when casing been laid in. The upper end of float shoe is connected casing and lower end is connected with the semilunar cement head. Float shoe contains a backpressure valve that prevents fluids from entering the casing while the pipe is lowered into the hole and prevents cement from flowing back into the casing after placement, while enabling circulation down through the casing.

Flo antag at shoe and float collar are used as kind of casing shoe or coupling to produce buoyancy. provides many kinds of wellhead equipment, such as casing head, tubing head, x-mas tree and some parts. We not only have standard design wellhead products, but also provide products according to customer's requirements.

Hot sale factory direct new casing tubing drill collar DD Elevator Model DD center latch elevator with square shoulder are suitable for handling drill collar, casing and tubing. The size ranges are from 2 to 5 1/2. The products shall be designed and manufactured according to the requirements in API Spec 8C Specification for Drilling and Production Hoisting Equipment. Machine Type Drilling Equipment Certification API Processing Type Casting Use Well Drilling Name Type DD Elevator Rating Load 150T,250T,350T Suitable for Drill collar, casing and tubing Advantage E asy operation, safety and reliability and qualified materials Condition New Model Size(in) Rated Cap.

The taps are turned from high trength alloy steel forging materials and heat treated. The taps are turned from high trength alloy steel forging materials and heat treated. The taper tap can be dressed with a skirt or a skirt and oversize guide.