Overcoming PPP Challenges in Non-Shales Environments

This document presents techniques for supporting the prediction of pore pressure and fracture gradient in real-time within non/shale formations (such as sandstones and carbonates), where traditional shalebased methods are not applicable. Using SLB’s PreVue service along with LWD/MWD tools, drilling parameters, and gas logging data, the approach helps to interpret indicators like mud losses, fluid gains and specially connection gas peaks.

The document emphasizes the importance of properly adjusting monitoring graph scales to detect events that might otherwise go unnoticed. A standardized workflow and plotting template are proposed to aid real-time interpretation. This methodology has been successfully applied in the Gulf of Mexico projects, enhancing understanding of the pressure regime during drilling operations-even without direct measurements.