An apparatus and method for assisting transportation of a tool down a wellbore. The apparatus comprises an elongate body having an exterior surface extending between top and bottom ends, a connector at the bottom end operable to be secured above the tool and at least one passage formed into the exterior surface defining a first flow path having an entrance and an exit oriented towards the top end of the elongate body. The method comprises securing the elongate body to a top end of a tool in a wellbore, directing a flow of fluid down the wellbore to a position above the elongate body, separating the flow of the fluid into an inner portion and an outer portion through radially separated paths and redirecting the inner portion to flow upwards into the outer portion of the flow of the fluid.

An apparatus and method for assisting transportation of a tool down a wellbore. The apparatus comprises an elongate body having an exterior surface extending between top and bottom ends, a connector at the bottom end operable to be secured above the tool and at least one passage formed into the exterior surface defining a first flow path having an entrance and an exit oriented towards the top end of the elongate body. The method comprises securing the elongate body to a top end of a tool in a wellbore, directing a flow of fluid down the wellbore to a position above the elongate body, separating the flow of the fluid into an inner portion and an outer portion through radially separated paths and redirecting the inner portion to flow upwards into the outer portion of the flow of the fluid.

Methods, system and devices for deploying an MI cable heater down-hole into a hydrocarbon reservoir are provided, wherein one or more MI cables are housed inside a protective jacket, and connected to a pump-in device. The pump-in device allows the cable to be deployed by pumping fluid down-hole, and the pump-in device catches the fluid and pulls the cable down-hole, even in a horizontal well.

A sealed pressured horizontal directional drilling continuous coring device for engineering geological investigation includes an outer tube assembly and an inner tube assembly matching the outer tube assembly. The outer tube assembly includes a single-wall drill pipe and a dual-wall drill pipe assembly. The inner wall of the dual-wall drill pipe assembly is sequentially provided with a bullet stop head, a bullet room, a suspended seat ring, a positioning inner lock, a positioning outer lock, a first centralizing ring, a lock ring seat and a drill from top to bottom. The inner tube assembly includes a spear head, a first sealing component, a bullet positioning mechanism, a recovery pipe, a second sealing component, an in-place reporting mechanism, a core blockage alarm mechanism, a single-action mechanism, a guiding mechanism, a buffer mechanism, an adjustment mechanism, a core tube and a core clamping mechanism.

A pump-down method includes deploying a tool in a well via a wireline and measuring a tension of the wireline. The method also includes determining a difference between the measured tension and a reference tension. The method also includes updating at least one of a pump rate and a wireline speed used for pump-down of the tool based on the difference and at least one control parameter obtained at least in part from prediction model results.

A pump-down method includes deploying a tool in a well via a wireline and measuring a tension of the wireline. The method also includes determining a difference between the measured tension and a reference tension. The method also includes updating at least one of a pump rate and a wireline speed used for pump-down of the tool based on the difference and at least one control parameter obtained at least in part from prediction model results.

A magnetic system for determining a position of an untethered dissolvable frac package for use in a hydraulic fracturing or stimulation operation. The system includes an array of magnets operable to produce a magnetic field that is operably associated with a position downhole along the string. A setting tool of the dissolvable frac package is configured to sense the magnetic fields and deploy a dissolvable frac plug at a predetermined position along the wellbore string.

An apparatus can have a seal module located at an upper portion thereof. The apparatus can also have a mud line formed through the upper portion of the apparatus and a mud outlet in fluid communication with the mud line. The apparatus can also include a mud pulser adjacent the mud outlet, wherein the mud pulser is configured to be actuated to open, partially close, and close the mud outlet.

A system for deploying an untethered dissolvable frac package for use in a hydraulic fracturing operation includes a dissolvable or degradable frac package with a dissolvable or degradable setting tool. The setting tool of the dissolvable frac package is configured to deploy a dissolvable frac plug at a predetermined position along the wellbore string and dissolve over time in the wellbore.

A downhole tool for use in a wellbore tubular string comprises a housing having a bore therethrough forming part of a fluid flowpath through the wellbore tubular string, a sliding member operable to slide with respect to the housing, a plurality of magnetic pins, and a corresponding plurality of springs. A sliding line is formed by interfacing surfaces of the sliding member and the housing, and the plurality of pins comprise a locked position and an unlocked position whereby in the locked position at least one pin spans the sliding line to prevent the sliding member from sliding with respect to the housing and in the unlocked position no pins span the sliding line. The plurality of springs biases the pins towards the locked position.