Selection and Calibration of Pressure Gauges in Drilling Rigs: Economic Impact Analysis according to ISO 10012 and NTE INEN 1825 Standards.

Abstract

Introduction: In the oil and gas industry, selecting the right gauge for drilling rigs ensures accurate pressure measurement, ensuring efficient and safe operations under stringent standards. Methodology: This study focuses on the selection and calibration of gauges for drilling rigs in the Ecuadorian oil industry. It analyzes the economic impact of maintaining calibration according to ISO 10012 and NTE INEN 1825 standards, considering the benefits of measurement accuracy and the risks of operational failures. Development: In the analysis of pressure instruments for drilling equipment, the appropriate manometer was selected based on measurement range, accuracy, repeatability, linearity, and environmental conditions. Regular calibration and maintenance are essential, complying with ISO 10012 and NTE INEN 1825 standards. The economic impact of calibrating a Bourdon manometer over 5 years was assessed, analyzing costs, maintenance, and benefits of efficiency and risk reduction. The projection showed a positive return on investment. Results and Analysis: The procedure details the selection of the appropriate pressure instrument for drilling rigs, according to ISO 10012. Economic projection based on real data evaluates the calibration of Bourdon type analogue pressure gauges on upstream drilling rigs. It estimates savings in operating costs and life extension, demonstrating that calibration according to technical specifications significantly reduces potential costs. Conclusions: Accurate selection of quality compliant measuring equipment and regular calibration ensures defined control limits and minimises borehole risks. Timely calibration of Bourdon type analogue pressure gauges is essential to maintain accuracy and safety, with annual savings of $147,000.00 versus costs of $129,833.33. Over five years, the projected savings are $735,000.00 with an ROI of 13.22%, underlining its cost-effectiveness and crucial role in the oil industry.