TOPIC: "Big Data for Synthetic Well Logs and Implications for Directional Drilling"
Horizontal directional drillers and geologists are often faced with non-unique interpretations of the position of the drill-bit within the reservoir section. Typical hindrances to positioning assessment are faults, lateral facies changes, log response differences between horizontal data collection and surrounding vertical well control, and limited log data curves in horizontal wells. The generation of synthetic logs in horizontal wells (most notably sonic and density curves) from routinely-collected drilling data feeds such as penetration rate, weight on bit, stand-pipe-pressure, etc… provides a means of overcoming interpretation limitations. The presentation provides an overview of the big data technology to generate synthetic logs, practical examples of the use of these logs in post-drill or real-time directional assessment, and a vision of potential new applications in the near future, such as moving the log measurement closer to the bit.