masterThesis
Perfil de exposición ocupacional a ruido en trabajadores de empresas de perforación y reacondicionamiento y rehabilitación de pozos en el sector de petróleo y gas Colombia 2011-2017
Autor
Guerra Reinoso, Jose Carlos
Institución
Resumen
Introduction: In the oil and gas sector, one of the most common activities where a large number of workers and generally noisy processes converge, corresponds to the activities of drilling and reconditioning and rehabilitation of wells, tasks that according to the nature of the equipment and circumstances of exposure to noise represents one of the highest potential risk jobs. Objectives: This research documents the occupational exposure to noise of workers in the Subsector of drilling and reconditioning and rehabilitation of wells through a random sampling stratified by GES. Methods: A cross-sectional study was carried out to estimate the noise exposure profile of workers in drilling and reconditioning and well rehabilitation services companies in Colombia, by analyzing a total of 971 personal noise assessments ( dosimetries) taken during the period between the years 2011 to 2017 in different companies of the subsector. Results: It is possible to infer with a confidence level of 95%, an average exposure higher than 88.0dBA for 12/25 groups under observation; estimated means equal to or greater than 85.0dBA but lower than 88.0dBA in 9/25 GES; average values higher than 82.0 dBA but lower than the TLV-TWA in 3/25 groups and only in 1/25 GES a low exposure lower than 82.0dBA. Conclusions: The highest amount of GES for analysis had high mean magnitudes with critical risk potential taking into account the statistical estimators of central tendency and maximum risk; allowing inferring that the activities of drilling and reconditioning and rehabilitation of wells represent a significantly higher risk condition in terms of proportionality than in other economic activities, an aspect that may infer the possibility that in these groups there may be a higher incidence rate of Hearing Loss Induced by Noise.