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:
May. 20, 2025
Filed:
Apr. 23, 2024
Halliburton Energy Services, Inc., Houston, TX (US);
Hasib Uddin, Houston, TX (US);
Ricardo Ortiz, Houston, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A bottom hole assembly ('BHA') includes a driveshaft including a bore through which the drilling fluid is flowable. The BHA also includes a bearing assembly configured to rotatably support the driveshaft that includes a radial bearing with an internal radial gap; an annular flow restrictor with an inner sleeve and an outer sleeve separated by a restrictor clearance; and a bypass fluid flow path open to the bore and extending through the radial gap and the restrictor clearance such that at least some drilling fluid is diverted from the bore into the bypass fluid flow path. The restrictor clearance is sized to restrict flow of the drilling fluid diverted through the bypass fluid flow path to control a pressure of the drilling fluid in the driveshaft. The outer sleeve is dynamically radially supported such that a radial load absorbed by the annular flow restrictor is below a selected threshold.