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:
Sep. 03, 2024
Filed:
Sep. 30, 2022
Saudi Arabian Oil Company, Dhahran, SA;
Ahmed M. Alghuryafi, Qatif, SA;
Abdullah H. Oqaili, Qatif, SA;
SAUDI ARABIAN OIL COMPANY, Dhahran, SA;
Abstract
A method to perform an inflow negative test of a wellbore is disclosed. The method includes disposing a flow measuring sub in a drill string to mechanically connect a drill pipe joint and a drill pipe, and sustaining a fluid flow downstream along an annulus and upstream along the drill pipe. The fluid flow reverses direction through an open port in a wall of the drill pipe or an open end of the drill pipe, and returns to a mud tank from the drill pipe through the flow measuring sub and the drill pipe joint. Flow measurement data of fluid movement through the flow measuring sub is generated using a measuring device of the flow measuring sub and sent to a computer device of the flow measuring sub. Accordingly, a success/failure result of the inflow negative test is determined using the computer device based at least on the flow measurement data.