PWDa Project

Pressure While Drilling (PWD) manipulation, simulation and data analysis software.


The PWDa is a computational tool used mainly for manipulation, simulation and pressure data analysis brought from the well drilling process in petroleum reservoirs.

The effects of these drilling analysis and simulations include the tracking and identification of occurrences and its causes, in order to make possible future procedures to attenuate the situation detected during the well drilling time.


The creation of a computational tool that can represent the specific knowledge from PWD analysis, and like the specialist identify the occurrences, their possible causes, and aid in the decision making process to solve problems.


The well drilling in petroleum reservoirs is an extremely complex and expensive process. It involves so many phenomena impacting the annular pressure during the drilling that those can retard the conclusion of the entire process

The ideal is to work inside of an operational window that ensures the annular pressure will stay between the porous and fracture gradient boundary pressures, or, in other words, that avoids the undesirable invasion of fluids and the rock's fracture.

Besides those, other phenomena can also be related, like the deficiencies in the cleaning of gravel generated during the drilling or originated from the fluid gelling process, surge/swab processes, maneuvers, fluid exchanges and others.

Nowadays, the control of these events is manually done by a PWD data analysis specialist that collects the PWD data in real time, analyses it graphically and concludes about the phenomena occurrences, to alert then the operation about possible problems and interrupt the drilling before any problems become concrete.