Disclosed is a guiding and injecting integrated mechanism for continuous conduit, belonging to underground exploration technical field. The mechanism comprises a pair of chain wheel and chain clamping assemblies used for clamping conduit and pulling conduit to go down or out of well. A conduit guiding channel for conduit to pass through is formed between the pair of chain wheel and chain clamping assemblies, and an inlet and an outlet of the conduit guiding channel are not situated in line. The conduit guiding channel is arc-shaped and each of the two chain wheel and chain clamping assemblies comprises a chain wheel set, chains, clamping blocks mounted on the chain, and a pushing plate for pressing the clamping blocks. Further, clamping surfaces of the clamping blocks have a certain curvature with respect to guiding direction.

A pliant link to mitigate fatigue-inducing motion of a subsea catenary riser has an articulated spine having a longitudinal series of interconnected rigid segments. The spine can be coupled to upper and lower sections of the riser to transmit loads along the riser through the link on a load path that extends through the segments. The link also has a pliant pipe terminating in end fittings that can be joined, respectively, to the upper and lower sections of the riser for fluid communication along the riser through the link.

An apparatus serves to grip a cable for delivery into a borehole in a surface of a mine passage in connection with an actuator, such as a drill mast having a carriage capable of being advanced and retracted along the drill mast. A pusher is formed from a pair of jaws for engaging the cable. The jaws may be biased toward a first position for engaging the cable during an advance of the carriage, and automatically movable to a second position for releasing from engagement with the cable during a retraction of the carriage. The pusher may be pivotally mounted to a carriage capable of being advanced and retracted along a drill mast, which movement may cause the jaws to self-actuate for engaging and advancing the cable during an upstroke and release therefrom during a downstroke. Related methods are also disclosed.

Device of remotely operated, tethered, subsea tools comprising remotely operated tethered tools (hereinafter: ROTTs), and a subsea station adapted thereto, said subsea station being provided with energy from an external energy source at the sea floor, the sea surface or above. The subsea station comprises a parking rack with a number of parking sites, each arranged to receive and releasably hold a ROTT; a housing supporting at least one umbilical drum with an umbilical, and a connection and launching station into which a ROTT is arranged to be pulled from a parking site of the parking rack and to be connected to the umbilical prior to being launched. Each ROTT is provided with a parking surface element adapted to be releasably attached to a parking site of the subsea station between operations, as well as an interface for attachment to the interface of the umbilical.

Device of remotely operated, tethered, subsea tools comprising remotely operated tethered tools (hereinafter: ROTTs), and a subsea station adapted thereto, said subsea station being provided with energy from an external energy source at the sea floor, the sea surface or above. The subsea station comprises a parking rack with a number of parking sites, each arranged to receive and releasably hold a ROTT; a housing supporting at least one umbilical drum with an umbilical, and a connection and launching station into which a ROTT is arranged to be pulled from a parking site of the parking rack and to be connected to the umbilical prior to being launched. Each ROTT is provided with a parking surface element adapted to be releasably attached to a parking site of the subsea station between operations, as well as an interface for attachment to the interface of the umbilical.

In the general context of oilfield equipment and, in particular, in the context of downhole tools, the systems and methods relate to characterizing flow in a wellbore using data collection devices, which may be temporarily attached on the outside of a work string to be run into the wellbore. More particularly, the systems and methods may be used for obtaining flow data at a plurality of different locations and correlated with wellbore depth for evaluation of production profiles of wellbores. A system may be provided that comprises a work string, multiple external support devices temporarily secured to an exterior of the work string at a plurality of different locations, and at least one data collection device such as a resistivity gauge, flow meter, and/or Doppler sensor, coupled to the external support devices. This data, once recovered on surface, could be incorporated into an overall production profile model of the well.

In the general context of oilfield equipment and, in particular, in the context of downhole tools, the systems and methods relate to characterizing flow in a wellbore using data collection devices, which may be temporarily attached on the outside of a work string to be run into the wellbore. More particularly, the systems and methods may be used for obtaining flow data at a plurality of different locations and correlated with wellbore depth for evaluation of production profiles of wellbores. A system may be provided that comprises a work string, multiple external support devices temporarily secured to an exterior of the work string at a plurality of different locations, and at least one data collection device such as a resistivity gauge, flow meter, and/or Doppler sensor, coupled to the external support devices. This data, once recovered on surface, could be incorporated into an overall production profile model of the well.

A system includes an upper sheave configured to orient a cable towards a well, a lower sheave, having a center, configured to orient the cable towards the upper sheave, and a sheave stand. The sheave stand includes a shaft, running through the center of the lower sheave, configured to enable rotation of the lower sheave about a central axis, a sheave holder, fixed to the shaft, configured to hold the lower sheave in a vertical position, a tool leg, fixed to the shaft, configured to elevate the shaft to a height above a surface, and a floor stand, fixed to the tool leg, configured to anchor the sheave stand to the surface. The sheave stand stabilizes the cable by maintaining the lower sheave in a fixed rotational position.

A trigger mechanism is provided for a passive rotating jointed tubing injector having gripper blocks for moving connected, segmented oilfield tubulars axially into or out of horizontal, extended-reach oil and natural gas wells that may contain pressurized fluid or gas to complete for production, work over and service the wells, utilizing an operation commonly known as snubbing. The trigger mechanism can open the gripper blocks when a tapered upset section of increasing diameter on the tubulars is encountered that would not otherwise fully open and operate the gripper blocks.

A trigger mechanism is provided for a passive rotating jointed tubing injector having gripper blocks for moving connected, segmented oilfield tubulars axially into or out of horizontal, extended-reach oil and natural gas wells that may contain pressurized fluid or gas to complete for production, work over and service the wells, utilizing an operation commonly known as snubbing. The trigger mechanism can open the gripper blocks when a tapered upset section of increasing diameter on the tubulars is encountered that would not otherwise fully open and operate the gripper blocks.