One of the larger challenges in the well construction phase in exploration drilling and field development is understanding the stress regime and rock stability in the various geological layers. Great focus centers on the reservoir for obvious economic reasons, although most of the wellbore construction cost occurs above the reservoir, mainly driven by section length and sparse information on vital parameters for geomechanical analysis.

There are two main points in a cost-effective geomechanical analysis: it must be performed without increased cost or delays in well construction, and the analysis must be accurate and results fed back to the wellsite for implementation.

Employing appropriate, high-quality measurement devices in the drillstring is important to verify geomechanical models and adjust them to new information such as unintentional drilling operational challenges that can be used to constrain the pressure window. Geomechanical events must be identified before developing into a non-productive time situation. Continuously monitoring and analyzing a geomechanical event ensures correct measures are employed to mitigate problems. A subject matter expert requires the appropriate technology to highlight the optimal analysis processes.

This paper describes possible events of borehole-related collapse and how the automated process can detect wellbore stability issues. Utilizing remote operations to capture event details and deliver solutions for procedures that prevent or terminate the deficient circumstances enables an operation to continue without increased risk or delay.

The communication with the operational team is vital, and all work processes and command lines must be clear and followed. Personnel training and workflows are covered in the paper.

You can access this article if you purchase or spend a download.