Petroleum Technology Company As

Other

Petroleum Technology Company

Magnar Tveiten

Erling Kleppa

Øyvind Stokka

Oyvind Stokka

Ole Sevheim

Tom Norland

Kristian Harestad

Helge Skorve

David Hutchinson

Egil Josefsen

ØYvind Stokka

A valve system for use in a wellbore includes a side pocket mandrel and one or more well tools, where the side pocket mandrel includes an elongated body section provided with a connector at its ends, the elongated body section being provided with a substantially fully open main bore for alignment with the well tubing and an offset side pocket bore. At least one through opening is provided in the side pocket mandrel, leading into the side pocket bore, and at least one through opening is provided in the internal wall, leading into the main bore, where the at least two openings are in fluid communication through the side pocket bore, in which side pocket bore at least two valves are arranged in series to form a double fluid barrier between the main bore and an outside of the pocket mandrel, the at least two valves being independently retrievable through at least one installation opening arranged in the internal wall of the side pocket mandrel.

Valve system

A shear valve () for use in a downhole tool between the annulus and tubing in a well comprises an outer housing () and an internal body () movable in a longitudinal direction within the housing when the valve is activated, and at least one obstruction device () which can be arranged to obstruct the internal body from moving. The obstruction device is capable of being deactivated by pressure from the tubing side of the valve.

Shear valve

A valve () having at least one flange portion () for securing to a wellhead Christmas tree () for shutting off a pipe outlet () from the wellhead Christmas tree (). At least one of the flange portions () includes integrated devices () for operation of a second unit () mounted outside the valve ().

Valve device of a wellhead Christmas tree assembly

The present invention relates to a valve system for use in a wellbore, the system comprising a side pocket mandrel and one or more well tools, where the side pocket mandrel () comprises an elongated body section () provided with connection means () at its ends, the elongated body section () being provided with a substantially fully open main bore () for alignment with the well tubing () and an offset side pocket bore (). At least one through opening () is provided in the side pocket mandrel (), leading into the side pocket bore (), and at least one through opening () is provided in the internal wall (), leading into the main bore (), where the at least two openings () are in fluid communication through the side pocket bore (), in which side pocket bore () at least two valves () are arranged in series to form a double fluid barrier between the main bore () and an outside of the pocket mandrel (), the at least two valves () being independently retrievable through at least one installation opening arranged in the internal wall () of the side pocket mandrel ().

Present invention regards a device for injection and stimulation of fluids in a wellbore, where the device is typically is installed in Christmas trees, wellheads or subsea. The device comprises two separable sections, where the section that is mounted/arranged within the Christmas tree or wellhead, will remain in a closed position even if the other section due to external forces is broken off or in other ways is damaged.

Device for injection and stimulation of fluids in a well bore

The present invention regards a device designed for injection of fluids in a well bore, typically an offshore well bore for petroleum production and gas injection/gas lift system for fluid injection. The device comprises a outer hollow housing () with an internal body () moveable within the outer housing () with an internal bore () which in a first closed position is closed with a metal to metal seal system between the outer housing () and the internal body (), which internal body () is operated by pressure differential across the internal body (), where the internal body () is designed with slots () forming outlets of the internal bore () which in an open position of the device is positioned outside of the outer housing ().

Fluid injection device

The present invention regards a device designed for injection of fluids in a well bore, typically an offshore well bore for petroleum production and gas injection/gas lift system for fluid injection. The device comprises a outer hollow housing with an internal body moveable within the outer housing which in a first closed position is closed with a metal to metal seal system between the outer housing and the internal body, which internal body is operated by pressure differential across the internal body. The internal movable body is connected to the outer hollow housing by means of a retainer key. The retainer key comprises a shear arrangement and is arranged to keep the valve in a fixed closed position, where fluid pressure is to overcome the pretension of the retainer key in order to open the device. When the device is shear opened, it can be kept in this open position as the retainer key is locked to the outer hollow housing.

Shear open valve

The present invention regards a device designed for injection of fluids in a well bore, typically an offshore well bore for petroleum production and gas injection/gas lift system for fluid injection. The device comprises a outer hollow housing () with an internal body () moveable within the outer housing () with an internal bore () which in a first closed position is closed with a metal to metal seal system between the outer housing () and the internal body (), which internal body () is operated by pressure differential across the internal body (), where the internal body () is designed with slots () forming outlets of the internal bore () which in an open position of the device leads to the outside of the outer housing ().

A device for increasing the production flow in a production tubing, where the production tubing has at least one inlet or port for adding a fluid medium, adds the fluid medium through the at least one inlet or port at an angle &#x3b1; between 90 and 0 degrees with a longitudinal axis of the production tubing. The device further has elements that provide a rotation of the added fluid medium.

Power lift generator

A separation method and apparatus are disclosed having particular application for effecting removal of sand from a production wellstream, enhancing the quality of recovered oil, gas and water output streams () and reducing erosion caused by entrained sand. The wellstream is passed initially through a cyclone separator () which separates substantially all the water and sand as underflow and substantially all the oil and gas as overflow. A gravity separator () separates the overflow from the cyclone separator () into oil, gas and water, and a further cyclone separator () separates the underflow from the first cyclone separator (') into water and sand.

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Sandnes, Norway

Magnar Tveiten