Basic floating equipment includes the float collar and float shoe.
The float shoe contains a back-pressure 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.
Float collars are placed one to three joints above the guide shoe or float shoe. They provide a seat for the cement plugs, the bottom plug pumped ahead of the cement and the top plug behind the full volume of slurry. Once seated, the top plug shuts off fluid flow and prevents over-displacement of the cement. The space between the float shoe and the float collar provides a containment area to entrap the likely-contaminated fluids from the wiping action of the top cementing plug, securing the contaminated fluid away from the shoe where a strong cement bond is of primary importance. Float collars include a back-pressure valve and serve basically the same function as the float shoe.
(1) . Use for the inner string cementing of large diameter casing.
(2) . Displacement volume and cementation time are reduced.
(3) . The valve is made with phenolic material and molded with high strength concrete. Both the valve and concrete are easily drillable.
(4) . Excellent performance for flow endurance and pack pressure holding.
(5) . Single valve and double valve versions are available.
Why you need to choose Lake Petro?
As a professional oil and gas service company, Lake Petro has many good experience in selling and serves for the oilfield industries for years. Quality is the culture of the company, we provide API and BV certified products for customer.
Can you make us the best quality products as well as a good price?
Yes,we can give you really high quality products with competitive price. We have a better understanding in Chinese market, with us your money will be safe.
What is special compare with other companies?
First, we provide the quality products, with BV and API certified; At the same time, we provide our customer with the best service after sale, any time any where.
High strength design ensures high pressure bump and back flow resistance; Withstands long periods of circulation; Automatic fill-up, saves considerable running-in time of casing; Easy drill out with PDC bits; Special non-rotational groove design ensures cementing plugs dilled ...