Statoilhydro Asa

Vibjørn Dagestad

Alastair Buchanan

Kjell Tore Nesvik

A coupling device for connection and disconnection of bottomhole equipment includes a male part having a stinger with locking grooves and a female part includes a receptacle and a housing. The female part further includes a hold open sleeve below the receptacle, locking dogs arrange between the housing and the hold open sleeve, a locking sleeve arranged below the locking dogs, and a verifying bolt. By joining the male and female parts, the coupling device will lock automatically, as the hold open sleeve is pushed into the locking sleeve by the stinger, after which the locking dogs are pushed into the grooves of the stinger, after which the locking sleeve is pushed up over the locking dogs locking the locking dogs, after which the verifying bolt once the locking sleeve is in locking position will be pushed into an adapted opening in the locking sleeve, thereby verifying correct locking.

Growing community of inventors

Hafrsfjord, Norway

Vibjørn Dagestad