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. 29, 2016
Filed:
Jun. 03, 2014
Applicant:
Dmar Engineering, Inc., Houston, TX (US);
Inventors:
Zhiming Huang, Missouri City, TX (US);
Dagang Zhang, Houston, TX (US);
Assignee:
DMAR Engineering, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 3/02 (2006.01); E21B 19/00 (2006.01); G01D 11/30 (2006.01); E21B 17/01 (2006.01); G01M 5/00 (2006.01);
U.S. Cl.
CPC ...
E21B 19/004 (2013.01); E21B 17/015 (2013.01); G01D 11/30 (2013.01); G01M 5/0058 (2013.01);
Abstract
Apparatus and methods related to catenary riser testing are described. For example, some embodiments may contain a ground platform, elevated deck, a catenary-shaped testing sample, a fixed clamp on one end of the testing sample and a rotatable clamp on the other end of the testing sample, and a plurality of hydraulic cylinders for controlling the vertical and horizontal positions and motions of the elevated deck and the positions and rotations of the rotatable clamp, for analyzing the characteristics of the testing sample, such as its touchdown point dynamic motions and stresses.