System and method for communicating between a drill string and a logging instrument

摘要

A wireline configurable well logging instrument is connected to a drill pipe carrier and movable from a retracted position to an extended position. The drill pipe carrier is positioned on a pipe string that may comprise a portion of wired pipes communicatively coupled at each joint. Communication between the drill pipe carrier and the well logging instrument includes the use of inductive couplers, wires and combinations thereof.

主权项

1. A system for communicating with a logging instrument:
a drill string comprising a plurality of drill pipes coupled end to end forming joints and a bottom portion extending into a wellbore, wherein at least a portion of the drill string comprises wired drill pipes coupled together and capable of transmitting data across the joint; a drill pipe carrier positioned on the bottom portion of the drill string in communication with the wired drill pipes, wherein the drill pipe carrier comprises a top portion and a cable and the top portion of the drill pipe carrier is connected to the drill string with a coupling mechanism; and an instrument for measuring a property of the wellbore, the instrument is connected to the drill pipe carrier by the cable and is movable from a retracted position substantially within the drill pipe carrier and to an extended position substantially outside of the drill pipe carrier while remaining in communication with the wired drill pipe, wherein the instrument is in communication with the wired drill pipes in both the extended position and the retracted position, and in the retracted position, the cable is coiled or spooled inside the top portion of the drill pipe carrier and in the extended position, the instrument is dropped below the drill pipe carrier and the cable is substantially taut or straight.