The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 18, 2024

Filed:

Jan. 10, 2022
Applicant:

Merlin Technology, Inc., Kent, WA (US);

Inventors:

Albert W. Chau, Woodinville, WA (US);

Loc Viet Lam, Renton, WA (US);

Assignee:

Merlin Technology, Inc., Kent, WA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/12 (2012.01); E21B 7/04 (2006.01); E21B 7/30 (2006.01); E21B 47/095 (2012.01); E21B 47/125 (2012.01); G01V 3/30 (2006.01);
U.S. Cl.
CPC ...
E21B 47/12 (2013.01); E21B 7/046 (2013.01); E21B 7/30 (2013.01); E21B 47/095 (2020.05); E21B 47/125 (2020.05); G01V 3/30 (2013.01);
Abstract

A drill string communication system is described. An uphole transceiver can couple a signal onto the drill string at a power that is always greater that a selectable power for a downhole signal. Communication from a drill rig to an inground tool can be re-initiated using a maximum uphole transmit power of an uphole transceiver. A procedure can establish a new set of transmission parameters for a drill string signal to establish communication between the drill rig and the inground tool. The system can include a walkover locator that receives an active/inactive status-controlled electromagnetic locating signal. Responsive to a locating signal degradation, a reconfiguration command can modify the locating signal. The uphole transceiver and a downhole transceiver can automatically modify at least one parameter of a downhole signal. An uphole receiver can apply a compensation response to a transferred signal to compensate for a drill string channel transfer function.


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