Acquisition, Processing and Evaluation of Down Hole Data for Monitoring Efficiency of Drilling Processes

Maurizio Bevilacqua, Filippo Emanuele Ciarapica;Barbara Marchetti;


This paper presents a study carried out in collaboration with a company leader in the production of drilling tools and sensors. Data were gathered during a period of four months in two horizontal well of an oil field with the aim of assessing the relationship between Mechanical Specific Energy (MSE) and drilling efficiency trough the analysis of the most significant drilling parameters.<br>There are several models and measurement systems available for measuring such parameters, however in many practical cases the possible maximum performances are not achieved and this suggests the idea that there is still room, from a research point of view, to increase acquisition accuracy and their correct evaluation. In this study, down hole data were acquired to calculate significant parameters for assessing drilling performances which can contribute to the avoidance of errors in torque calculation due to the effect of drill string friction and the consequent distortion of MSE curve.<br>Moreover, the same data implemented in a model for Rate of Penetration (ROP) calculation and a map correlating RPM and Weight on Bit (WOB) values with Rate of Penetration was drawn.


Mechanical Specific Energy; Drilling Rate; Weight on Bit; Drilloff Curve

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