An embodiment includes a wireline standoff that may ameliorate the effects of wireline cable differential sticking, wireline cable key seating, and high cable drags by reducing or eliminating contact of the wireline cable with the borehole wall during the logging operation. An embodiment includes a wireline standoff. The wireline standoff may comprise a pair of opposing assemblies. The opposing assemblies may each comprise a half shell, a cable insert configured to be disposed in the half shell, and external fins coupled to the half shell. The wireline standoff may further comprise one or more fasteners configured to couple the opposing assemblies to one another.

A well tool assembly to cut a wellhead gate valve by water jetting includes a water jetting head lowered into a wellhead tree coupled to a wellbore. The head includes a housing, an orifice plate and a jetting port. The housing defines a tubular region to receive water. The orifice plate is positioned within the tubular region downstream of a first end and upstream of a second end of the housing, and defines an orifice to accelerate a flow rate of the water received at a first flow rate upstream of the orifice plate to a second flow rate, greater than the first, downstream of the plate. At the second flow rate, the water can mill a gate valve within the wellhead. The jetting port is downstream of the orifice plate, and can receive the water at the second flow rate and guide the received water to the gate valve.

A well tool assembly to cut a wellhead gate valve by water jetting includes a water jetting head lowered into a wellhead tree coupled to a wellbore. The head includes a housing, an orifice plate and a jetting port. The housing defines a tubular region to receive water. The orifice plate is positioned within the tubular region downstream of a first end and upstream of a second end of the housing, and defines an orifice to accelerate a flow rate of the water received at a first flow rate upstream of the orifice plate to a second flow rate, greater than the first, downstream of the plate. At the second flow rate, the water can mill a gate valve within the wellhead. The jetting port is downstream of the orifice plate, and can receive the water at the second flow rate and guide the received water to the gate valve.

A casing pipe extends in a vertical direction, and two adjacent casing pipes are connected by a plurality of link mechanisms; the link mechanism includes two supports, the two supports are hinged by a first pin to form a hinged portion, an upper end and a lower end of the link mechanism are hinged to two adjacent casing pipes by second pins separately, a sensor is fixed to the link mechanism, and the link mechanism has an initial state of extending in the vertical direction and an extending state in which the hinged portion extends outwards to be located on an outer side of the casing pipe; a driving mechanism drives a push portion to move towards the link mechanism; and a downward pressing apparatus is used for pressing a top end of the topmost casing pipe downwards to push the hinged portion into a side wall of the borehole.

A wellhead adapter assembly is disclosed. A wellbore adapter is designed for connection to a drillstring, with a riser fluidly connected to the wellbore adapter. At least one tubular arm section is rotatably and fluidly connected to the riser. A positioning system is attached to the at least one tubular arm. The positioning system is adapted to maintain the at least one tubular arm in a desired position relative to the riser, despite relative movement between the drillstring and a floating structure such as a drilling rig.

A wellhead adapter assembly is disclosed. A wellbore adapter is designed for connection to a drillstring, with a riser fluidly connected to the wellbore adapter. At least one tubular arm section is rotatably and fluidly connected to the riser. A positioning system is attached to the at least one tubular arm. The positioning system is adapted to maintain the at least one tubular arm in a desired position relative to the riser, despite relative movement between the drillstring and a floating structure such as a drilling rig.

A downhole cable includes a central core. The central core includes a metal tube having a plurality of optical fibers therein or a copper wire. The downhole cable further includes an extruded aluminum tube surrounding the central core.

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 flexible connector for connecting coiled tubing to a bottom hole assembly is disclosed. The flexible connector has multiple internal diameters that reduces breakage due bending down hole and reduces turbulence of fluid flowing through the coiled tubing, flexible connector, and bottom hole assembly. The flexible connector also reduces the chances of a bottom hole assembly attached by the flexible connector to a coiled tubing being stuck down hole.