Abstract: The present disclosure relates to a friction reduction tool having a housing for connecting the friction reduction tool to a drill string or coiled tubing; a force converter within the housing and having a stator, a helical rotor, and a rotational cavity passageway for conveying drilling fluid between the stator and the helical rotor; and a valve assembly; wherein the helical rotor has a bore which extends through the helical rotor and which defines an alternative passageway for the drilling fluid; and wherein the rotational cavity passageway and the alternative passageway are in fluidic communication with the valve assembly.

Abstract: A downhole tool for cyclically generating cyclical pressure waves in drilling fluids of sufficient magnitude to vibrate a drill string or coiled tubing to reduce friction between drill string or coiled tubing and a wall of an uncased or cased wellbore. A passageway through which drilling fluid flows through the tool is constricted to increase pressure of the drilling fluid while it continues to flow through the tool. A bypass around the constriction is cyclically opened by a rotary valve to increase the flow area through the tool for the drilling fluid while at the same time an axially shifting valve, shifted by a pair of rotating cams, opens to allow drilling fluid to vent to an annulus formed by the drill string or coiled tubing and a wall of the wellbore.

Abstract: A downhole tool for cyclically generating cyclical pressure waves in drilling fluids of sufficient magnitude to vibrate a drill string or coiled tubing to reduce friction between drill string or coiled tubing and a wall of an uncased or cased wellbore. A passageway through which drilling fluid flows through the tool is constricted to increase pressure of the drilling fluid while it continues to flow through the tool. A bypass around the constriction is cyclically opened by a rotary valve to increase the flow area through the tool for the drilling fluid while at the same time an axially shifting valve, shifted by a pair of rotating cams, opens to allow drilling fluid to vent to an annulus formed by the drill string or coiled tubing and a wall of the wellbore.

Abstract: A compliant slip assembly that can include a spacer ring, a wedge ring, and a compliant slip device, where the slip device can include a body with a rigid first portion, a compliant second portion, and an expandable third portion, where the third portion can include expandable segments that are circumferentially spaced apart with a slit located between adjacent expandable segments. A method of securing a well tool in a tubing string using the compliant slip assembly, where the method can include conveying the well tool into a tubing string and expanding the compliant slip assembly into engagement with the tubing string, thereby securing the well tool in the tubing string.