Real-Time Drilling Optimization and Rig Activity-Based Models Deliver Best-In-Class Drilling Performance: Case History

摘要

This paper presents a case study for improving drilling performance by maximizing penetration rate while ensuring that hole conditions are not compromised. The overall aim was to identify and prevent invisible lost time (ILT) and nonproductive time (NPT) by means of pre-drill engineering studies and real-time drilling optimization. This process was conducted to deliver continuous improvement in a three-well drilling campaign in the East Texas Basin. Prior to drilling the series of three wells in the East Texas Basin, a pre-drill study of information from offset wells was used to calibrate engineering models and identify opportunities for improvement. These were primarily identified by the analysis of mechanical specific energy (MSE) and rate of penetration (ROP) to create a driller's road map (DRM) to optimize parameters that can be controlled on the rig floor (rpm, WOB, flow rate). Calibrated torque and drag (T&D) and hydraulics models were developed to compare and monitor model versus actual (MvA) in real time.