Formation as a self-sealing barrier

This process – if it occurs – imply huge cost savings for P&A operations. However, the mechanisms that promote or prevent natural barrier formation are not yet fully understood. We study the process of forming a shale barrier experimentally, analytically and numerically:

• SINTEF has specially designed a Shale Barrier Test; a downscaled simulation of the gap closure process enabling monitoring of sealing capacity and stress on the casing. Pre- and post-test CT scans reveal the extent and nature of the formation barrier.
• Rock characterization tests and traditional hollow cylinder tests are also a part of the study.

Read more:

• Shale as a permanent barrier during well abandonment (Project)
• Plugging materials
• Well integrity
• Formation physics
• Formation physics laboratory