Methods and systems for wellhole logging utilizing radio frequency communication

摘要

A system and method is disclosed for utilizing a radio frequency communication system to wirelessly exchange data with well logging tools and external devices. A logging tool component is operably fitted with an extension antenna which travels through the thick casing of the logging tool. The extension antenna enables data exchange, for example, between radio frequency identification tags inside the logging tool and devices outside of the logging tool.

主权项

1. A system for transferring data in a direction of at least one of to and from a well logging tool having an exterior metal shell operable to protect components of the well logging tool in a downhole environment, said system for transferring the data comprising:
the well logging tool for measuring the data relative to at least one of said well logging tool and subsurface properties of a well, said well logging tool including, a logging tool casing; at least two internal antennas electrically coupled together and housed in an interior of the logging tool casing for wireless communication with the components within the logging tool casing, wherein the at least two internal antennas are connected to radio frequency identification tags housed in the interior of the logging tool casing, and the at least two internal antennas are operable to exchange the data between said radio frequency identification tags and a loop induction antenna mounted outside of the interior of the logging tool casing within the well logging tool; a chassis positioned longitudinally within a cartridge section of said well logging tool wherein said radio frequency identification tags are connected to said chassis; a smart end cap closed at an end of the well logging tool and removably connected to said well logging tool for protection of said well logging tool; a reader-writer antenna positioned close and oppose to the loop induction antenna such that the data can be exchanged between the loop induction antenna and the reader-writer antenna; a transceiver connected to said reader-writer antenna mounted within the smart end cap operable to exchange the data with said reader-writer antenna from said reader-writer antenna to an external antenna; the external antenna positioned outside of the interior of the logging tool casing within the well logging tool, wherein the external antenna is extending out of said smart end cap and communicatively coupled to the at least two internal antennas to allow transfer of the data, through said external antenna, between said at least two internal antennas and an external device located outside the well logging tool; a bail connected to an end of said smart end cap and extending over said external antenna; said data is collected and recorded by at least one sensor located in said smart end cap, said at least one sensor configured to measure the downhole environment to which the well logging tool is exposed when tripped out of a hole; and the loop induction antenna mounted within the smart end cap to be adjusted by a distance, wherein the adjustment distance of the loop induction antenna permits adjustments of a coupling intensity between the reader-writer antenna and the loop induction antenna.