Downhole Electromagnetic Telemetry System Utilizing Electrically Insulating Material and Related Methods
AssigneeHalliburton Energy Services, Inc.
InventorsPaul F. Rodney, David Lyle
Life of this patent
Estimating the term…
Abstract
A downhole electromagnetic telemetry system and method whereby electrically insulating material is placed above and/or below an electrical current launching device or receiver along a well string in order to extend the range of the telemetry system, increase the telemetry rate, and/or reduce downhole power requirements.
Claims17
A method for utilizing an electromagnetic telemetry system in a downhole well, the method comprising:
- providing a well string comprising one or more tubulars attached to a bottom hole assembly, the bottom hole assembly comprising at least one of an electrical current launching device or a receiver;
- applying electrically insulating material around one or more portions of the well string;
- deploying the bottom hole assembly into the well;
- conducting an electromagnetic telemetry operation using the bottom hole assembly;
- and
- utilizing the electrically insulating material to reduce at least one of:
- short circuits from the current launching device to casing;
- or
- current leakage from the well string into the casing or formation along the well.
An electromagnetic telemetry system for use in a downhole well, the system comprising:
- a well string comprising one or more tubulars attached to a bottom hole assembly, the bottom hole assembly comprising at least one of an electrical current launching device or a receiver;
- and
- electrically insulating material positioned around one or more portions of the well string to reduce at least one of:
- short circuits from the current launching device to casing;
- or
- current leakage from the well string into the casing or formation along the well.
A method for utilizing an electromagnetic telemetry system in a downhole well, the method comprising:
- applying electrically insulating material around one or more portions of a well string comprising at least one of an electrical current launching device or a receiver;
- deploying the well string into the well;
- and
- utilizing the electrically insulating material to reduce at least one of:
- short circuits from the current launching device to casing;
- or
- current leakage from the well string into the casing or formation along the well.
Dependencies are inferred from the claim text.