| PETROLEUM TECHNOLOGY COMPANY AS Patent applications |
| Patent application number | Title | Published |
|---|
| 20120125621 | Bellows valve - The present invention relates to a device which can be used in an off-shore or onshore oil and/or gas well for the purpose of increasing the production of the well. The device comprises an outer structure in which a first and a second pressure-actuated bellows device are arranged, the first and second pressure-actuated bellows device, via a support means, being in fluid communication with each other. The support means is fixedly mounted internally in the outer structure, the support means thereby delimiting an open and a closed space for respectively the first and the second pressure-actuated bellows device, wherein the closed space is filled with a fluid under pressure, whilst the open space is in fluid communication with a surrounding fluid. | 05-24-2012 |
| 20110067879 | Bellows Valve - The present invention relates to a valve device which is employed in connection with oil and gas wells with the object of increasing the well's production. The valve device comprises an external housing ( | 03-24-2011 |
| 20110042066 | DEVICE FOR INJECTION AND STIMULATION OF FLUIDS IN A WELL BORE - 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. | 02-24-2011 |
| 20100288502 | 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 ( | 11-18-2010 |
| 20100212908 | Stealth Orifice - The present invention regards a surface controlled device designed for injection of fluids in a well bore, typically Man offshore well bore for petroleum production and gas injection/gas lift system for fluid injection. The device comprises a outer hollow housing ( | 08-26-2010 |
| 20100155079 | Bellows valve - The present invention relates to a valve device comprising an external structure with a longitudinal axis and a valve seat, and a valve body mounted movably inside the external structure. The valve device comprises a first bellows device permitted to be moved in a substantially radial direction, in fluid connection with a first fluid, and hydraulically connected to a second bellows device permitted to be moved in a substantially axial direction. The second bellows device is connected to a first part piston cooperating with a second part piston, thereby giving the second part piston an oppositely directed movement relative to the first part piston, which thereby moves the valve body relative to the valve seat. The invention also relates to a method for operation of a valve device and the use thereof. | 06-24-2010 |
| 20100059222 | Power Lift Generator - The present invention relates to device for increasing the production flow in a production tubing, comprising at least one inlet for adding a fluid medium and means to provide the added fluid at an angle α between 90 and zero degrees with a longitudinal axis of the tubing. This effect is further enhanced by means for rotating the added fluid medium. A method for increasing the production flow in a production tubing is also disclosed. | 03-11-2010 |
| 20090065215 | 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 ( | 03-12-2009 |
| 20090025938 | 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 ( | 01-29-2009 |
| 20080245528 | Separating Device - The invention comprises a sealing body ( | 10-09-2008 |
