Bottom Hole Assembly Analysis Using Finite Element Analysis Software

Abstract

Bottom hole assembly (BHA) is a component of a drill string that used to drill oil and gas wells. A BHA resides in the drill string above the drill bit and below the drill pipe. The primary component of the BHA is the drill collar. Figure (1.1), shows the possible component of a BHA and their typical location within a BHA. In this project, the BHA Analysis model was used to analyze and simulate a well X by using Landmark-Wellplan software. BHA model has been modified into two different design configurations in order to determine the appropriate BHA model in terms of the resultant wellbore angle, direction change, and contact points or forces. The results showed that the original BHA configuration has the best inclination tendency when the drilling parameters i.e. WOB, RPM remain constant and the modified BHA – second scenario gives less contact between the drill string and the wellbore, which shows the effect of the number of stabilizers in BHA configuration