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:
Apr. 06, 2021
Filed:
Jun. 25, 2018
Lei Wang, The Woodlands, TX (US);
Gregory S. Payette, Spring, TX (US);
Jeffrey R. Bailey, Houston, TX (US);
Jeff H. Moss, The Woodlands, TX (US);
Lei Wang, The Woodlands, TX (US);
Gregory S. Payette, Spring, TX (US);
Jeffrey R. Bailey, Houston, TX (US);
Jeff H. Moss, The Woodlands, TX (US);
ExxonMobil Upstream Research Company, Spring, TX (US);
Abstract
A method of optimizing drilling ramp-up is provided herein. More specifically, a method of ramping up a drilling operation from a static condition (0, 0) to optimum drilling parameter values (WOB*, RPM*) is provided. The method includes identifying a set of drilling control variables used in forming the wellbore. Examples include weight-on-bit (WOB) and rate of penetration (RPM). The method additionally includes selecting desired control variable values for a first identified drilling stage. The values may be generically referred to as (V, V). The method also includes increasing the drilling control variables from (0, 0) to pre-defined drilling control variable values (V, V). Preferably, Vis a WOB value while Vis a rotation speed value (RPM). The method also comprises monitoring a performance index (PI), wherein (PI) is a combination of torque (TQ) and penetration rate (RPM). The method then includes determining an optimal path to optimum drilling parameter values (WOB*, RPM*) using the Performance Index (PI).