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.
Patent No.:
Date of Patent:
Nov. 26, 2024
Filed:
Mar. 14, 2022
Logging tool motion error reduction for nuclear magnetic resonance logging via pulse angle selection
Halliburton Energy Services, Inc., Houston, TX (US);
Arcady Reiderman, Richmond, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
In some embodiments, a method includes selecting a flip angle of refocusing pulses of a pulse sequence equal to a tip angle of an excitation pulse of the pulse sequence, wherein the flip angle is selected based on a lateral motion parameter of a nuclear magnetic resonance (NMR) sensor of a logging tool positioned in a wellbore formed in a subsurface formation. The method further includes emitting, from a transmitter of the logging tool into the subsurface formation, the pulse sequence comprising the tip angle and selected flip angle, and acquiring, by the NMR sensor, transversal NMR relaxation data generated in response to the emitted pulse sequence. The method also includes processing the transversal NMR relaxation data to assess a petrophysical parameter.