Abstract: A powered articulated magnetic fishing tool having one or more knuckle or ball joints and a magnet to retrieve fish from a subterranean well and methods of retrieving the metallic object using the fishing tool. The fishing tool includes a magnet and one or more powered joints. The powered joints may each include or be coupled to a multi-axis position sensor that indicates the orientation of the joint and associated section downhole from the joint. The fishing tool may include a camera and a light located at the magnet end of the fishing tool. A system may include a human interface console located at the surface to control the fishing tool.

Abstract: The disclosed embodiments include downhole tools, multi-lateral intervention systems and methods to deploy a tubular into a lateral borehole of a multi-lateral well. A downhole tool includes a mandrel having an angulated interior profile along a first side of the mandrel. The downhole tool also includes a nose coupled to a second side of the mandrel. The downhole tool further includes a link having an angulated exterior profile along a first side of the link that is rotatably coupled to the first side of the mandrel. The link is rotatable from a first position to a second position, and wherein the nose tilts at an angle relative to the link while the link is at the second position.

Abstract: An articulating wireline component includes a first integrally formed member having a base portion, a neck portion and a ball portion having a first diameter, and a second integrally formed member including a base section, a neck portion and a socket portion including an opening having a second diameter that is smaller than the first diameter. The ball portion is arranged in the socket portion and the second integrally formed member is formed from a solid material.

Abstract: A flexible pipe joint has a body and an annular elastomeric flexible element flexibly coupling an extension pipe to the body for pivoting of the extension pipe with respect to the body. The flexible pipe joint also has an annular flexible boot for thermally or chemically insulating the annular elastomeric flexible element from the fluid flowing through a lumen of the flexible pipe joint. The annular flexible boot encircles the lumen, and the annular flexible boot has a first annular end attached to the extension pipe and a second annular end mounted so that pivoting of the extension pipe with respect to the body causes a flexing of the annular flexible boot, and a majority of the annular flexible boot has a shape conforming to shape of neighboring components of the flexible pipe joint.

Abstract: A pressure compensator for providing pressure compensation for a chamber of a subsea device is provided. The pressure compensator has an enclosure with at least an outer wall. A first compensation chamber is provided inside the enclosure. A flow connection from the first compensation chamber towards the chamber of the subsea device is further provided. As second compensation chamber is provided inside the enclosure. First and second separating walls are arranged inside the enclosure. A first bellows portion of the first separating wall and a second bellows portion of the second separating wall are deformable to provide pressure compensation between the chamber of the subsea device and a second inner volume around which the second separating wall extends.

Abstract: Disclosed are systems and methods of directional drilling with a steering sub. One steering sub includes a housing defining a central passage, a shaft extended within the central passage, bearings arranged within the central passage and configured to receive and support the shaft for rotation within the central passage, and one or more pressure chambers defined longitudinally in the housing and configured to deflect the housing upon experiencing an increased pressure, wherein deflection of the housing causes the shaft to correspondingly deflect via engagement with the bearings.

Abstract: The invention relates to a riser pipe section comprising a main tube (2), at least one auxiliary line element (3) substantially parallel to said main tube (2) and at least two fastening means (7, 8) that connect the ends of said element (3) to main tube (2). The section is characterized in that fastening means (7, 8) allow longitudinal stresses to be transmitted from said element (3) to main tube (2) and in that at least one of fastening means (7, 8) allows at least a rotating motion of said element (3) in relation to said main tube (2), the rotating motion following an axis perpendicular to the plane passing through axis (4) of the main tube and through the axis of auxiliary line element (3).

Abstract: A downhole tool comprises a joint, and a resilient member 65 which extends through the joint and provides a restoring force which tends to strengthen the joint. The joint may comprise a flex coupling 61 which allows limited articulation of the joint. First and second drill string sections 63, 64 may be interconnected by the joint, the resilient member 65 being fixed to interior surfaces of the first and second drill string sections 63, 64. A downhole tool may also comprise primary and secondary sleeves 46 that are supported relative to the mandrel 10 of the drill string. Rotational drive may be transferred from one of the sleeves to the other.

Abstract: A support arm has stationary support structure, a boom, a knuckle and an auxiliary jib section. The boom connects at one end to the support structure and at an opposite end to one end of the knuckle, and an opposite end of the knuckle connects to one end of the auxiliary jib section. Each connection is a pivotal connection for pivoting about vertical pivot axes. An opposite end of the auxiliary jib section connects to a main jib section through a pivotal connection for pivoting about a horizontal axis. First and second flexible tubes connect across the knuckle and the auxiliary jib section between the boom and the main jib section. The flexible tubes extend from points on the main jib section in parallel horizontally spaced relationship and pass slippingly and in parallel longitudinally through parallel horizontally spaced guide sleeves that are connected on the auxiliary jib section.

Abstract: Well and exploratory drilling apparatus whose rotary motion is modified by a vibrator to provide lateral movement of its bit. There is also disclosed a universal movement which enables such action to occur in a steerable assembly, while providing a passage for a conduit to supply motive fluid to the vibrator, and isolating the drill rod from at least some of the vibrating forces.

Abstract: Two methods and four mechanisms are disclosed for drilling at right angles to a vertical well at any location or depth in the well. The drilling mechanisms each comprises a flexible spring biased telescopic fluid conduit having a turbodrill on the lower end thereof for extending from an opening in the side of an elongated cylindrical housing for drilling at right angles to the well. The flexible spring biased telescopic fluid conduit comprises a plurality of axially aligned spools with cylinders interconnecting the adjacent ends of adjacent spools and with a compression spring in each cylinder between the two adjacent spool ends for permitting flexibility and telescopic action of the fluid conduit while resisting high compression and torque loads.