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:
Mar. 30, 2021
Filed:
Dec. 13, 2017
Trendsetter Vulcan Offshore, Inc., Houston, TX (US);
James V. Maher, Houston, TX (US);
Kim Mittendorf, Houston, TX (US);
Abstract
A monitoring system for use in a marine riser system coupled to a rig vessel includes one or more subsea inertial measurement units adapted for mounting to a lower end of a riser, an LMRP, or both. The one or more subsea inertial measurement units may acquire time series data of inclination and acceleration. The one or more subsea inertial measurement units may transmit, to a vessel transceiver, frequency data computed from the time series data, low-pass filtered values of the time series data, or both. The monitoring system includes a surface processing unit that is in communication with the vessel transceiver. The surface processing unit may be programmed to compute, for example, fatigue along the marine riser system, the difference between the inclination of the lower end of the riser and the inclination of the LMRP, or both, by applying predetermined functions to the transmitted data.