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:
Sep. 09, 2025
Filed:
Oct. 17, 2023
Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, CN;
Abstract
The present disclosure provides a phase-controlled excitation downhole nuclear magnetic resonance imaging device and method which relate to the technical fields of downhole nuclear magnetic resonance imaging devices and methods, and achieve high-resolution imaging for an underground target by utilizing a plurality of array antenna units and a phase-controlled array technology. The array antenna units are uniformly arranged around an array antenna frame, and each antenna unit is capable of achieving independent transmission and collection. A transmission phase of each antenna unit is controlled by adopting a phase control technology, the positioning excitation of a transmission pulse is achieved according to a co-phase stacking principle, and thus, the imaging resolution is further improved. The present disclosure has the advantages of high resolution and high efficiency and is suitable for the field of underground exploration. The application of this method will provide a more accurate and reliable imaging result for underground exploration and provide an important technical support for resource exploration and development.