Abstract: A bottom hole assembly comprising a downhole tool known as a cutting tool is provided for use within a subterranean well for severing tubulars. The cutting tool comprises a fluid source, a gas-driven rotatable motor and a cutting head including one or more cutters. The fluid source supplies pressurized fluid and thereby energy to the gas-driven rotatable motor which is disposed to generate thrust to set the gas-driven rotatable motor in motion. The cutting head is coupled to the gas-driven rotatable motor and rotates while cutting the tubular. The cutting tool can be deployed in a subterranean well by a variety of deployment methods, and the pressurized fluid may be supplied from a surface system, generated inside the cutting tool or bottom hole assembly, or input within the cutting tool or bottom hole assembly prior to deployment. The invention further relates to associated methods.

Abstract: A bottom hole assembly comprising a downhole tool known as a cutting tool is provided for use within a subterranean well for severing tubulars. The cutting tool comprises a fluid source, a gas-driven rotatable motor and a cutting head including one or more cutters. The fluid source supplies pressurized fluid and thereby energy to the gas-driven rotatable motor which is disposed to generate thrust to set the gas-driven rotatable motor in motion. The cutting head is coupled to the gas-driven rotatable motor and rotates while cutting the tubular. The cutting tool can be deployed in a subterranean well by a variety of deployment methods, and the pressurized fluid may be supplied from a surface system, generated inside the cutting tool or bottom hole assembly, or input within the cutting tool or bottom hole assembly prior to deployment. The invention further relates to associated methods.

Abstract: A reciprocating downhole pump for use in a subterranean well for lifting produced fluids to the surface. The reciprocating downhole pump is inverted in that the pump has a pump cylinder with an upper part and a lower part, wherein the upper part is configured for connection to a production tubing and the lower part is configured for receiving energy to drive the pump. A pump piston and a pump intake is arranged above the pump piston. The pump has one or more standing valves arranged above the pump piston. The pump is driven by a hydraulic piston rod.

Abstract: The invention relates to an apparatus for transferring a reciprocating movement from a machinery arranged at a surface to a device located downhole in a subterranean well, the apparatus comprising: a longitudinal hollow body an upper rod connected to the machinery in one end thereof and to an upper displacement body in another end thereof, a lower displacement body adapted to operate the device, the upper displacement body and the lower displacement body are in communication via a liquid in the longitudinal hollow body, and are movable within the longitudinal hollow body, and wherein the upper displacement body, the lower displacement body and the liquid are configured to reciprocate synchronously relative to the longitudinal hollow body. The invention further relates to a method of producing a wellbore fluid.

Abstract: The invention relates to an apparatus for transferring a reciprocating movement from a machinery arranged at a surface to a device located downhole in a subterranean well, the apparatus comprising: a longitudinal hollow body an upper rod connected to the machinery in one end thereof and to an upper displacement body in another end thereof, a lower displacement body adapted to operate the device, the upper displacement body and the lower displacement body are in communication via a liquid in the longitudinal hollow body, and are movable within the longitudinal hollow body, and wherein the upper displacement body, the lower displacement body and the liquid are configured to reciprocate synchronously relative to the longitudinal hollow body. The invention further relates to a method of producing a wellbore fluid.

Abstract: Offloading cargo from a cargo vessel and delivering the cargo to a cargo recipient, or loading cargo onto the cargo vessel from a cargo supplier, may be performed using a cargo vessel which is spread moored at sea to a plurality of mooring points for mooring the cargo vessel in a desired orientation. Alternatively, the cargo vessel may be rotatably moored. Tubing may be provided and configured to be connected to the vessel for fluid communication between the vessel and the cargo recipient or the cargo supplier, and may comprise a first portion configured to be connected to the cargo vessel and a second portion configured to be connected to the cargo recipient or the cargo supplier. A semi-submersible unit may be operable to travel across the sea and carry part of the tubing from a stand-by location to a position adjacent to the cargo vessel, so as to allow an end of the first portion of the tubing to be connected the cargo vessel for offloading or loading the cargo.

Abstract: A sand screen for installation in a well includes a flow-through element having a center line running in the longitudinal direction of the flow-through element; and a filtration device. The flow-through element has an internal cavity extending over at least parts of a length of the flow-through element. There are a plurality of openings over the length of the flow-through element. The openings, via the filtration device, provide communication between an outer surface of the flow-through element and the internal cavity. The sand screen is flexible in a radial direction and in an axial direction.

Abstract: Offloading cargo from a cargo vessel and delivering the cargo to a cargo recipient, or loading cargo onto the cargo vessel from a cargo supplier, may be performed using a cargo vessel which is spread moored at sea to a plurality of mooring points for mooring the cargo vessel in a desired orientation. Alternatively, the cargo vessel may be rotatably moored. Tubing may be provided and configured to be connected to the vessel for fluid communication between the vessel and the cargo recipient or the cargo supplier, and may comprise a first portion configured to be connected to the cargo vessel and a second portion configured to be connected to the cargo recipient or the cargo supplier. A semi-submersible unit may be operable to travel across the sea and carry part of the tubing from a stand-by location to a position adjacent to the cargo vessel, so as to allow an end of the first portion of the tubing to be connected the cargo vessel for offloading or loading the cargo.

Abstract: A sand screen for installation in a well includes a flow-through element having a center line running in the longitudinal direction of the flow-through element; and a filtration device. The flow element has an internal cavity extending over at least parts of a length of the flow-through element. The flow element further has a plurality of openings over the length thereof. The openings, via the filtration device, provide communication between an outer surface of the flow element and the internal cavity. The sand screen is flexible in a radial direction and in an axial direction.

Abstract: A pump includes at least one pump section. The pump section has a center line and comprises at least two pump steps. The pump steps have a center line and each pump step comprising a motor and one or more pump stages. The at least one pump section includes an outer casing enclosing one or more inner casings. The outer casing forms an enclosure round the pump section and has a larger diameter than the inner casings. The inner casings form an enclosure round the at least two pump steps. The center line of the pump section is displaced relative to the center line of the pump steps, thereby forming an annulus between the outer casing and the inner casing.

Abstract: A pump and pump section, where the pump section has a centre line and where the pump section comprises at least one pump step, the pump step has a centre line and each pump step comprises a motor and one or more pump stages, and where the pump comprises an outer casing enclosing one or more inner casings, the outer casing forms an enclosure round the pump section and has a larger diameter then the inner casings, and the inner casings form an enclosure round the at least one pump step, and where the centre line of the pump section is displaced relative to the centre line of the pump steps, thereby forming an annulus between the outer casing and the inner casing.

Abstract: The present invention concerns a method of quantifying, detecting and localizing leaks or flows of liquid, gasses, or particles, in an oil or gas producing well (230). The method utilizes an acoustic transducer (150) arranged in the well (230).

Abstract: Particle or MFD boards are disclosed comprising an aminoplastic resins and yet exhibiting low emissions levels of formaldehyde, as well as methods to arrive at such boards.