I-tec As

Trican Completion Solutions As

Geir Lunde

Roger Antonsen

Kristoffer Braekke

Kristoffer Brække

A valve for inclusion or insertion in a tubular includes a substantially cylindrical outer valve housing; an inner sliding sleeve mounted axially movable inside the valve housing; and a seat arranged for receiving a drop ball, dart or falling device. The seat is built in such a way that it can partially or completely be removed or drilled out from the valve. The inner sliding sleeve includes a first profile arranged at a first end of the inner sliding sleeve and a second profile arranged at a second end of the inner sliding sleeve, wherein the first profile and the second profile are configured to be engaged with an activating or shifting tool inserted and run in the tubular after the seat has been partially or completely removed or drilled out from the valve in order to operate the valve from an open to a closed position and/or vice versa.

Valve, system and method for completion, stimulation and subsequent re-stimulation of wells for hydrocarbon production

A valve system for providing fluid flow through radial openings disposed along an axial length of a tubular. The tubular comprises at least one valve group containing at least two valves operable by one drop ball. An insete.g. of standard grade steel provided in a harder linerin the opening provides an intermediate small opening for at least the time required to open all the remaining valves in the group. The small opening limits the pressure drop over the valve. When all valves are open, the insetsare eroded away by an abrasive material, e.g. a slurry used for hydraulic fracturing, and permanent full openings are created.

System and method for operating multiple valves

Apparatus for a drop ball activated device, where a ball seat is concentrically and axially slidably disposed within an outer sleeve having a first internal cylindrical surface, wherein the ball seat comprises at least one radially extending lug, which in a first position extends radially inwards from the internal cylindrical surface, thereby defining a first ball seat diameter less than the diameter of the drop ball. The sleeve comprises at least one groove in its internal surface, and the lug may be received in the groove, thereby defining a second ball seat diameter at least as large as the diameter of the drop ball.

Growing community of inventors

Sandnes, Norway

Geir Lunde