Desenvolvimento de um Sistema em LabVIEW para Controle de Pressão em Tempo Real em Sondas de Perfuração Utilizando Managed Pressure Drilling e Baseado em CBHP

Abstract

This work presents the development of a LabVIEW-based system for real-time pressurecontrol in oil well drilling rigs, utilizing Managed Pressure Drilling (MPD) techniques andConstant Bottomhole Pressure (CBHP) control. The system monitors well parameters suchas flow rate, pressure, and drilling fluid density, and automatically adjusts backpressureto maintain constant bottomhole pressure within safe limits. LabVIEW was chosen asthe development platform due to its ease of graphical programming, hardware integrationcapabilities, and intuitive human-machine interface creation. The system was implementedon a CompactRIO Programmable Logic Controller (PLC), ensuring real-time executionof control tasks using deterministic managed tasks, queues, and a messaging system.Validation was performed on a test rig, demonstrating its effectiveness in pressure controland influx monitoring. This work contributes to the advancement of pressure control in oilwells, providing a reliable tool to ensure the safety and efficiency of drilling operations.