Reduces friction between the casing and the formation by filling the horizontal section with air and the vertical section with liquid. This buoyancy decreases sliding friction by more than 50%

Reduces the time required for casing descent and lowers associated risks

Prevents spiral buckling of the casing, promoting its integrity

Minimizes friction in the horizontal section

The valve does not require drilling out

Reduces sliding friction between the casing and the formation by more than 50%

Allows the horizontal section of the casing to remain filled with air while the vertical section is filled with liquid

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