System and method of using a saver sub in a drilling system
First Claim
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1. A system for use during drilling of a wellbore, comprising:
- a top drive unit;
a drill string wherein at least a portion of the drill string comprises a plurality of wired drill pipes; and
a saver sub to connect the drill string to the top drive unit, wherein the saver sub is positioned at the surface between the drill string and the top drive unit and further wherein the saver sub comprises a mandrel having a recessed region therein, electronics, a battery to power the electronics, and an antenna to relay and receive data; and
a shell removably mounted in the recessed region of the mandrel, the shell comprising an attachment mechanism for quick installation and removal from the mandrel, the electronics and the battery positioned in the shell whereby the electronics and battery are removably mounted to at least a portion of the mandrel.
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Abstract
A technique facilitates the drilling of a wellbore by enhancing the ability to relay data. The system comprises a saver sub designed to connect a top drive unit with a wired drill pipe without requiring modification of the top drive unit. The saver sub comprises an electronics package, a battery, and an antenna coupled to a saver sub mandrel.
28 Citations
16 Claims
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1. A system for use during drilling of a wellbore, comprising:
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a top drive unit; a drill string wherein at least a portion of the drill string comprises a plurality of wired drill pipes; and a saver sub to connect the drill string to the top drive unit, wherein the saver sub is positioned at the surface between the drill string and the top drive unit and further wherein the saver sub comprises a mandrel having a recessed region therein, electronics, a battery to power the electronics, and an antenna to relay and receive data; and a shell removably mounted in the recessed region of the mandrel, the shell comprising an attachment mechanism for quick installation and removal from the mandrel, the electronics and the battery positioned in the shell whereby the electronics and battery are removably mounted to at least a portion of the mandrel. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method to facilitate communication during drilling, comprising:
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forming a saver sub mandrel having a recessed region therein and an antenna for wireless communication of data and electronics to facilitate data flow with respect to the antenna; removably mounting the electronics and a battery to the saver sub mandrel by placing the electronics and the battery in a shell, the shell removably disposed in the recessed region of the saver sub mandrel, the shell comprising an attachment mechanism for quick installation and removal from the mandrel, the battery providing power to the electronics; coupling a wired drill pipe to a top drive unit via the saver sub mandrel at the surface; and electrically connecting the electronics to the wired drill pipe. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A system, comprising:
a saver sub connectable between a top drive unit and a wired drill pipe at the surface, the saver sub comprising; a mandrel having a recessed region; an antenna mounted to the mandrel; a battery mounted to the mandrel; a shell removably disposed in the recessed region, the shell comprising an attachment mechanism for quick installation and removal from the mandrel; and electronics mounted to the mandrel within the shell, wherein at least one of the antenna, the battery, and the electronics is removably coupled to the mandrel, and wherein the electronics and battery are mounted in the shell. - View Dependent Claims (15, 16)
Specification