Ware is delivered to bridging plug and seating nipple thereof

The utility model discloses a ware is delivered to bridging plug and seating nipple thereof should deliver the ware seating nipple and include the seating nipple body, and seating nipple body lower extreme is equipped with the roof pressure ring that the seat that is used for the top to push away the bridging plug sealed the clamping ring, and the lower terminal surface of roof pressure ring lies in seating nipple body below, roof pressure ring lower extreme with sit the area that seals area that the clamping ring top pushed away the complex fitting surface and be greater than work cylinder bottom face. The utility model discloses deliver the the roof pressure ring of ware seating nipple and lower face area that sit the contact of sealing the clamping ring for present seating nipple lower extreme area increase, reduce the seating nipple and sit the pressure that seals the clamping ring to the bridging plug when sealing sitting, be difficult to appear the roof pressure ring and wedge and sit the problem of sea