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:
Aug. 10, 2021
Filed:
May. 31, 2016
National Oilwell Dht, L.p., Houston, TX (US);
Mark W. Hutchinson, Spring, TX (US);
William L. Koederitz, Cedar Park, TX (US);
Christopher J. Jeffery, Aberdeen, GB;
Brad Applewhite, Houston, TX (US);
National Oilwell DHT, L.P., Houston, TX (US);
Abstract
Systems, methods, computer-readable media having computer programs, and electronic interfaces to detect and mitigate drill cuttings build-up in borehole drilling for hydrocarbon wells are provided. Embodiments include determining annular pressure at downhole sensors when pumping a drilling fluid into the borehole. Then one or more measures of a decrease in pressure in the borehole between a first sensor and a second sensor that is attributable to build-up of drill cuttings between the first sensor and the second sensor can be determined. Portions of effective density of the drilling fluid that are attributable to build-up of drill cuttings between the sensors also can be determined. Drill cuttings and fluid flow in an interval of the borehole between the first sensor and the second sensor can be analyzed. Whether drill cuttings limit fluid flow in an interval of the borehole between the first sensor and the second sensor then can be determined.