H&P GLOBAL GEOMAGNETIC MODELS

With directional drilling in today's market, well placement is of ever-increasing importance in the process of successfully drilling a well. Well placement by Measurements While Drilling (MWD) uses the direction of the Earth's gravity and magnetic field as a natural reference frame. For years, the industry standard used low resolution global models for this reference, such as the International Geomagnetic Reference Field (IGRF-13). These models only captured a fraction of the true complexity of the Earth's magnetic field, leading to inaccurate MWD corrections and consequently large uncertainties in the wellbore's final placement.