Electromagnetic anti-jam telemetry tool
Abstract
A mud-pulse telemetry tool includes a tool housing, a motor disposed in the tool housing, and a magnetic coupling coupled to the motor and having an inner shaft and an outer shaft. The tool may also include a stator coupled to the tool housing, a restrictor disposed proximate the stator and coupled to the magnetic coupling, so that the restrictor and the stator adapted to generate selected pulses in a drilling fluid when the restrictor is selectively rotated. The tool may also include a first anti-jam magnet coupled to the too housing, and an second anti-jam magnet disposed proximate the first anti-jam magnet and coupled to the inner shaft and/or the outer shaft, wherein at least one of the first anti-jam magnet and the second anti-jam magnet is an electromagnet, and wherein the first anti-jam magnet and the second anti-jam magnet are positioned with adjacent like poles.
- Inventors:
-
- Sugar Land, TX
- Missouri City, TX
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 983083
- Patent Number(s):
- 7330397
- Application Number:
- 10/905,953
- Assignee:
- Schlumberger Technology Corporation (Sugar Land, TX)
- Patent Classifications (CPCs):
-
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
- DOE Contract Number:
- FC26-03NT41835
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Ganesan, Harini, and Mayzenberg, Nataliya. Electromagnetic anti-jam telemetry tool. United States: N. p., 2008.
Web.
Ganesan, Harini, & Mayzenberg, Nataliya. Electromagnetic anti-jam telemetry tool. United States.
Ganesan, Harini, and Mayzenberg, Nataliya. Tue .
"Electromagnetic anti-jam telemetry tool". United States. https://www.osti.gov/servlets/purl/983083.
@article{osti_983083,
title = {Electromagnetic anti-jam telemetry tool},
author = {Ganesan, Harini and Mayzenberg, Nataliya},
abstractNote = {A mud-pulse telemetry tool includes a tool housing, a motor disposed in the tool housing, and a magnetic coupling coupled to the motor and having an inner shaft and an outer shaft. The tool may also include a stator coupled to the tool housing, a restrictor disposed proximate the stator and coupled to the magnetic coupling, so that the restrictor and the stator adapted to generate selected pulses in a drilling fluid when the restrictor is selectively rotated. The tool may also include a first anti-jam magnet coupled to the too housing, and an second anti-jam magnet disposed proximate the first anti-jam magnet and coupled to the inner shaft and/or the outer shaft, wherein at least one of the first anti-jam magnet and the second anti-jam magnet is an electromagnet, and wherein the first anti-jam magnet and the second anti-jam magnet are positioned with adjacent like poles.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {2}
}