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:
Jul. 12, 1994
Filed:
Mar. 17, 1993
Marco Rasi, Houston, TX (US);
Eugene A Sikirica, Katy, TX (US);
Exxon Production Research Company, Houston, TX (US);
Abstract
A method is provided, based on assigned drilling variables, for predicting the area of open region above a bed of cuttings resulting from drilling a high-angle well. The area of the bit used in drilling is compared with the area of the open region and drill pipe to determine a Hole-Cleaning Ratio. Occurrences of sticking of drill pipe or other drilling problems in prior-drilled wells are correlated with Hole Cleaning Ratio in those wells to determine a relationship for predicting risk of drilling problems in wells of interest. Risk factors so determined are used to modify conditions or equipment during drilling or to plan future wells.