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:
Feb. 04, 2020
Filed:
Aug. 19, 2015
Halliburton Energy Services, Inc., Houston, TX (US);
Yike Hu, Houston, TX (US);
Weijun Guo, Houston, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
Methods including taking a gamma spectrum from a wellbore at a target depth, wherein the wellbore penetrates a subterranean formation and has a completion profile comprising a pipe and an annulus between the pipe and the subterranean formation; determining a cement volumetric void space in the wellbore at the target depth; establishing a cement-void-spatial calibration curve based on obtained gamma spectra representing cement spatial void space locations in the annulus of the completion profile, wherein each cement volumetric void space amount in the wellbore has a characteristic cement-void-spatial calibration curve; comparing the wellbore gamma spectrum and the cement-void-spatial calibration curve; and determining a location of the cement volumetric void space in the wellbore at the target depth.