A device and method allows a bore valve in a washpipe of a crossover tool and in certain instances a port valve or sliding sleeve to open or close upon command from the surface so that gravel slurry may be placed in a wellbore around a wellscreen.

The present invention relates to an inflow control device for controlling the flow of fluid into a well tubular structure arranged in a borehole, comprising a tubular part for mounting as part of the well tubular structure, an aperture provided in a wall of the tubular part, and a hollow valve member rotatably received inside the tubular part, the hollow valve member comprising an orifice in a wall thereof, wherein an outer surface of the hollow valve member is spherical and the orifice is adapted to fluidly communicate with the aperture when the inflow control device is in an open position, whereby the aperture is in fluid communication with an inside of the tubular part. The present invention furthermore relates to a method of assembling an inflow control device according to the invention and to a completion system comprising an inflow control device according to the invention.

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 inset 302 e.g. of standard grade steel provided in a harder liner 301 in 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 insets 302 are eroded away by an abrasive material, e.g. a slurry used for hydraulic fracturing, and permanent full openings are created.

A bi-directional valve for use as a downhole casing isolation valve is described. A housing has a fluid flow path and a valve seat having a valve seating surface. A valve element has an outer cylindrical surface and a valve seating area on the outer cylindrical surface adapted to engage the valve seating surface on the valve seat so as to seal the valve in both directions.

Apparatus and method for a providing a completion assembly (15) for running at an end of a completion string (10) which provides a remotely operable tubing mounted valve (30) used to control the flow of fluids through the tubing in hostile well conditions. The tubing mounted completion assembly has a tubular body for connection in the string below a production packer (16) with a through bore from a first inlet and a first outlet coaxially aligned with the string; a downhole electronic actuating mechanism (32), a downhole hydraulic pump (34) and a hydraulically operated ball valve member (50). The actuating mechanism operates the hydraulic pump to provide a hydraulic control line to control movement the valve member from a first position, where the member is open and a through bore is created between the inlet and outlet of the assembly, to a second position, where the valve seals the throughbore and, finally, back to the first position.

Apparatus and methods for drilling with casing. In an embodiment, methods and apparatus for deflecting casing using a diverter apparatus are disclosed. In another embodiment, the apparatus comprises a motor operating system disposed in a motor system housing, a shaft operatively connected to the motor operating system, the shaft having a passageway, and a divert assembly disposed to direct fluid flow selectively to the motor operating system and the passageway in the shaft. In another aspect, methods and apparatus for directionally drilling a casing into the formation are disclosed. Methods and apparatus for measuring the trajectory of a wellbore while directionally drilling a casing into the formation are also described.

Wellhead assembly comprising a tubing hanger body (152) including a production bore (44) in fluid communication with the tubing bore, and a fluidly isolated annulus bore (50) in fluid communication with the tubing annulus, a valve open inlet port, and a valve closed inlet port, each inlet port located at least partially within the tubing hanger body (152), a valve (162) external of the tubing hanger body for controlling fluid flow in the production bore, a hydraulically actuated ball valve (52) within the annulus bore (50) of the tubing hanger body and including a ball rotatable between opened and closed positions about an axis substantially stationary with respect to the tubing hanger body and selectively moveable to open and close the annulus bore, an actuator sleeve (54) generally surrounding and radially outward of an outer surface of the ball and connected to the ball, the actuator sleeve (54) being moveable in response to fluid pressure in the valve open inlet port to move the ball to the open position, and moveable in response to fluid pressure in the valve closed inlet port to move the ball to the closed position; and an upper seat sleeve (56) and a lower seat sleeve (57) each substantially stationary axially with respect to the tubing hanger body, and the upper seat sleeve (56) having a sealing diameter with the tubing hanger body greater than the sealing diameter between the upper seat sleeve (56) and the ball, and a seal for sealing between the tubing hanger body and the actuator sleeve to fluidly isolate the valve open inlet port from the valve closed inlet port.