| 摘要 |
The present invention provides a mudline connector (10) including a compression adaptor (40) which can be elastically deformed onto an internal tubular member.In the preferred embodiment the compression adaptor (40) deflects inwardly to grip an upper and a lower sealing mandrel (50, 56) in order to provide axial and bending load support and create a seal in order to isolate bore (160) pressure from an outer annulus (170) and vice-versa. The clamping arrangement (10) thereby provides a sealed connection between two well casing sections which extend in opposite axial directions. The well casings are gripped and held in an end to end configuration. The connector (10) does this by means of a radial load applied internally by a compression ring (60).The connector (10) is activated by introducing pressure into a piston port activation thus stroking an activation piston(s) (80) which in turn provides an axial thrust to stroke the internally tapered compression ring (60) along the externally tapered compression collar (70) effectively creating an interference fit therebetween. This deflects the inner surface of the compression collar (70) inwardly which thereby deflects the compression adaptor (40) inwardly in order to grip the outer surfaces of the upper and lower sealing mandrels (50, 56). |
