Abstract

Abstract In the process of directional well drilling, how to accurately model the real-time well trajectory is of great significance to improving the reservoir encounter rate and recovery rate. This paper provides a method to improve the accuracy of well trajectory by cleaning and correcting the continuous measurement data in combination with fixed measurement data, and then using the continuous measurement data for trajectory modeling. The continuous measurement data comes from the CG-STEER rotary steerable system. The well trajectory calculated by the continuous measurement data corrected by the above method greatly reduces the vertical depth calculation error during the drilling process, and effectively reduces the vertical depth error accumulation caused by the large spacing between fixed measurement points. It can effectively improve the drilling target accuracy and horizontal section penetration rate, and reduce invalid drilling.