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:
Dec. 04, 2018
Filed:
Dec. 02, 2014
Applicant:
Landmark Graphics Corporation, Houston, TX (US);
Inventors:
Matthew Edwin Wise, Sugar Land, TX (US);
Gustavo Adolfo Urdaneta, Houston, TX (US);
Assignee:
Landmark Graphics Corporation, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 41/00 (2006.01); E21B 21/08 (2006.01); E21B 19/00 (2006.01); E21B 47/06 (2012.01); E21B 47/09 (2012.01);
U.S. Cl.
CPC ...
E21B 41/0092 (2013.01); E21B 19/008 (2013.01); E21B 21/08 (2013.01); E21B 47/06 (2013.01); E21B 47/09 (2013.01);
Abstract
A trip speed table is created containing records. Each record contains a step location, wherein a step is defined to be the location in a well of a deepest end of a drill string, a minimum trip speed for the step location, wherein the minimum trip speed is defined to be the maximum trip speed less than or equal to a default trip speed at which the drill string can be tripped without exceeding a fracture gradient or falling below a pore pressure at a slice depth, and the slice depth where the minimum trip speed for the step location occurred.