Abstract: A logging system for use in a wellbore formed in an earth formation. A tubular conduit is provided extending from surface into the wellbore, as well as a surface communication and control device located at the surface. A telemetry device located inside the wellbore is capable of sending and receiving signals to and/or from the surface communication and control device, the signals representing commands and/or data. Also provided is a logging tool string that is capable of passing from a position within the conduit to a position outside the conduit at a lower end part thereof and capable of being suspended by the conduit in said position outside the conduit. Communication of the commands and/or data between the logging tool string and the telemetry device is established using a communication interface between the logging tool string and the telemetry device.

Abstract: Embodiments of the present invention generally relate to a method and apparatus for providing a conductor in a tubular. In one embodiment, a coiled tubing string for use in a wellbore includes: a tubular; a conductor extending at least essentially a length of the tubular; and a tubular coating extending at least essentially the length of the tubular and bonding the conductor to an inner surface of the tubular.

Abstract: A method of drilling a borehole into a subsurface earth formation, using a tubular drill string which includes at its lower end a bottom hole assembly comprising a drill bit, a drill steering system, and a surveying system. The drill string includes a selectively closable passageway for passing an auxiliary tool from a first position interior of the drill string above the bottom hole assembly to a second position. In the second position, at least part of the auxiliary tool is exterior of the drill string below the bottom hole assembly. The drill string is progressed into the earth formation by drilling. When a tool operating condition is met the passageway is opened and the auxiliary tool is passed through the passageway from the first position to the second position, where the auxiliary tool is operated.

Abstract: A method of drilling a borehole into a subsurface earth formation is-provided, the method including using a tubular drill string which includes at its lower end a bottom hole assembly comprising a drill bit, a drill steering system, and a surveying system, wherein the drill string includes a passageway for an auxiliary tool from a first position interior of the drill string above the bottom hole assembly to a second position wherein at least part of the auxiliary tool is exterior of the drill string below the bottom hole assembly, which passageway can be selectively closed, and which method also includes drilling so as to progress the drill string into the earth formation, until a tool operating condition is met; opening the passageway; passing an auxiliary tool from the first position through the passageway to the second position, and operating the auxiliary tool at the second position.