Interwell Technology As

Interwell Norway As

Terje Stormo

Espen Hiorth

A well tool device includes a mandrel device having an axial center axis, a housing device provided radially outside of the mandrel device, and a ratchet system. The ratchet system includes a grooved outer surface area of the mandrel device, a first locking ring including a grooved inner surface area engaged with the grooved outer surface area of the mandrel device, a grooved outer surface area, and an axial slit allowing radial expansion of the first locking ring. The first locking ring is engaged with the outer housing. The ratchet system is configured to allowing relative axial movement between the mandrel device and the first locking ring in a first axial direction and to prevent relative axial movement between the mandrel device and the locking ring in a second direction opposite of the first direction. The ratchet system further includes a second locking ring provided radially outside the first locking ring, the second locking ring including a grooved inner surface area engaged with the grooved outer surface area of the first locking ring, and an axial slit allowing radial expansion of the second locking ring. The second locking ring is engaged with the outer housing.

Well tool device comprising a ratchet system

A sealing device for a well plug includes a mandrel device, a sealing element, a first supporting device provided on a first side of the sealing element and a second supporting device provided on a second side of the sealing element. Each supporting device includes proximal supporting elements provided proximal to the sealing element and distal supporting elements, where first ends of the respective proximal and distal supporting elements are pivotably connected to each other. The second ends of the proximal supporting elements are pivotably connected to a connector of a proximal supporting ring. The sealing device is brought from a run state to a first set state by relative axial movement of the distal supporting rings towards each other and relative axial movement of the proximal supporting rings towards each other.

Supporting device for a sealing element in well plug

Device for carrying a replacement safety valve in a well tube, with a straddle structure for placement inside a damaged 'Down Hole Safety Valve' nipple seal area. It is comprising a pair of sealing assemblies () to be activated upon setting of the device to seal said nipple seal area, and a locking dog assembly () for locking the device in the well tube, said elements being carried by a tubular mandrel (). At least one of the sealing assemblies () comprises a expandable element () being activated by a pair of annular press elements ().

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Trondheim, Norway

Terje Stormo