The collar is installed on the casing column at the specified depth interval during well completion
Prevents the impact of excessive hydrostatic pressure on weak formations and ensures cement reaches the planned depth even in the presence of absorption zones
Allows hydraulic opening of cementing windows (without the use of a ball or plug), making it suitable for use in horizontal sections of the wellbore
Includes a lock mechanism for the moving cylinder that closes the cementing windows of the collar
Can be manufactured with enhanced performance characteristics for use in high-pressure wells
Operational angle up to 90 degrees
Premium threaded connections can be manufactured upon agreement with the customer
It consists of a body containing opening and closing sleeves. The sleeves are secured by shear screws. The closing sleeve features a seating cone for the upper wiper plug and a position lock. The opening sleeve also has a seating cone for the dropping plug.
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