Provided is a wellbore leg, a multilateral junction, and well system. The wellbore leg, in one aspect, includes a tubular having a fluid passageway extending there through, and an articulating structures located within the fluid passageway. In at least one aspect, the articulating structures includes a first portion, and a second portion, wherein the first portion and the second portion are coupled to one another and operable to rotate relative to one another.

A directional core drilling includes an outer barrel assembly with at least one steering pad for orientating a drill bit within a hole and a drive barrel rotationally supported within the outer barrel assembly. An inner drive assembly is receivable within the outer barrel assembly and includes a torque latch assembly and an anti-rotation bearing assembly. The torque latch assembly includes latch arms configured to releasably couple a rotational drive input to the drive barrel. A core barrel is coupled to the anti-rotation bearing assembly and is rotationally fixed relative to the drive barrel.

The present application relates to a locking apparatus for locking axial ends of first and second drilling rig components in a connected state, the connected state established by sufficiently rotating the first drilling rig component relative to the second drilling rig component in a first direction. The apparatus includes a first locking means that enables the first and second drilling rig components to be locked in their connected state by causing, during rotation of the first drilling rig component in the first direction, the locking apparatus to engage with the first drilling rig component in a configuration that prevents the first drilling rig component from rotating in a direction opposite to the first direction. The apparatus further includes a second locking means that enables the locking apparatus to be prevented from rotation relative to the second drilling rig component, including during rotation of the first drilling rig component in the first direction, the locking apparatus thereby preventing relative rotation between the first and second drilling rig components.

The present application relates to a locking apparatus for locking axial ends of first and second drilling rig components in a connected state, the connected state established by sufficiently rotating the first drilling rig component relative to the second drilling rig component in a first direction. The apparatus includes a first locking means that enables the first and second drilling rig components to be locked in their connected state by causing, during rotation of the first drilling rig component in the first direction, the locking apparatus to engage with the first drilling rig component in a configuration that prevents the first drilling rig component from rotating in a direction opposite to the first direction. The apparatus further includes a second locking means that enables the locking apparatus to be prevented from rotation relative to the second drilling rig component, including during rotation of the first drilling rig component in the first direction, the locking apparatus thereby preventing relative rotation between the first and second drilling rig components.

A telescopically assembled, Merlin™ Family Connector is provided with one or more sets of threads on substantially matching frustoconical surfaces of a pin and a box of the connector. Strengthening means are introduced involving at least one of: a mechanical stiffening clamp interacting with an outside surface of the box or a mechanical stiffening clamp interacting with an inside surface of the pin. The stiffening clamps may include systems of arbitrarily oriented ribs and/or fairing surfaces. The said strengthening means may be essentially annular clamps that would have relatively regular shapes essentially conforming to the external or internal surfaces of the box or the pin, respectively. The above modifications can be introduced to traditional connectors and to connectors designed to transfer high torsional loads.

A deployment tool that can be used on land, jack-up and floating drilling rigs. The tools is installed around a drillpipe tool joint making it independent of the drill string load path as well as independent of the drill pipe thread and drill pipe size. It is designed for the largest commonly used drillpipe size, so has a single outer dimeter configuration that can be adapted from the largest drillpipe to the smallest in use with simple mechanical adapters. Thus, one main tool and a set of adapters is all that is required. The tool may be used in the deployment of RCDs, for example in the landing of an RCD bearing assembly on an RCD housing, or in the deployment of tubing hangers, lining hangers, casing hangers or other or any other temporary completion tool.

A catcher for use in a wellbore includes a housing and an insert disposed within the housing. A method of using the catcher includes disintegrating at least a portion of the insert while the insert is held rotationally stationary with respect to the housing by a taper connection between the insert and the housing.

A catcher for use in a wellbore includes a housing and an insert disposed within the housing. A method of using the catcher includes disintegrating at least a portion of the insert while the insert is held rotationally stationary with respect to the housing by a taper connection between the insert and the housing.

A retention system for attaching a collar to a pipe. The collar has an internally-disposed groove configured for placement of a ring. The ring is sized such that in one orientation, it can enter the collar between torque-transmitting features into the internally-disposed groove. Once in the groove, the ring may be adjusted such that its aperture is generally aligned with the axis of the collar. In this orientation, the features retain the ring within the groove. A bolt and a pipe may then be placed within the collar from opposite sides. The bolt is attached to the pipe through the ring. Once joined, the collar is joined to the pipe, forming its box end. Such a retention system may be used to join a series of inner pipe members of a dual-member pipe assembly, as in horizontal directional drilling.

A retention system for attaching a collar to a pipe. The collar has an internally-disposed groove configured for placement of a ring. The ring is sized such that in one orientation, it can enter the collar between torque-transmitting features into the internally-disposed groove. Once in the groove, the ring may be adjusted such that its aperture is generally aligned with the axis of the collar. In this orientation, the features retain the ring within the groove. A bolt and a pipe may then be placed within the collar from opposite sides. The bolt is attached to the pipe through the ring. Once joined, the collar is joined to the pipe, forming its box end. Such a retention system may be used to join a series of inner pipe members of a dual-member pipe assembly, as in horizontal directional drilling.