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:
Mar. 24, 2020
Filed:
Feb. 04, 2019
Exxonmobil Upstream Research Company, Spring, TX (US);
Sai S. Rao, Spring, TX (US);
Kaustubh S. Kulkarni, Spring, TX (US);
ExxonMobil Upstream Research Company, Spring, TX (US);
Abstract
Methods for enhancing transport rate of particles of size Din a cuttings bed within an annulus of a wellbore during drilling operations. One method comprises estimating, with a computer, a current particle size distribution (PSD) of a particle bed including particles of size Dwithin a measured depth (MD) range of the wellbore; calculating, with the computer, a target PSD of the MD range using a using a one-dimensional transient model incorporating a particle transport model; determining, with the computer, a pumping PSD to achieve the target PSD within the MD range; and adding the pumping PSD to a drilling fluid flowing within the annulus, thereby enhancing the transport rate of particles of size Dwithin the MD range. The particle transport model may be a surface-based transport model.