Análise de criticidade e efeitos dos modos de falhas operacionais em poços direcionais OFFSHORE

Abstract

Directional drilling has emerged as a widely employed technique in offshore operations due to its ability to tilt the drilling column, enabling the drilling of wells that were previously inaccessible or impractical through conventional vertical drilling methods. Due to factors such as the extreme conditions in the offshore environment, including salinity, humidity, corrosion, and temperature variations, equipment failures and well structure issues can arise. The aim of this study is to analyze the criticality and effects of operational failure modes in offshore directional wells using the Failure Modes, Effects, and Criticality Analysis (FMECA) tool. To achieve this goal, a literature review was conducted, selecting books, and academic articles already published from various offshore exploration locations. Based on the literature review, an analysis of operational failures and their degree of criticality was performed. Additionally, strategic actions were proposed to prevent the recurrence of similar failures. To conduct this literature review, a systematic review was carried out to identify potential failure modes, effects, and mechanisms in directional drilling processes. Factors such as severity, occurrence, and detection of these failures were also quantified. The materials supporting this study were selected through filtering the most researched and cited works in search tools. Finally, it was possible to determine and quantify the criticality factor of three failure modes, as well as establish preventive actions to avoid the recurrence of the studied failure modes. Keywords: Directional drilling; Failure analysis; Failure modes; Criticality; FMEA-FMECA