• Narrow Beam Scan

    The Narrow Beam Scan method is a breakthrough technology in surface microseismic monitoring.

  • Reprocessing

    Now is an ideal time to revitalize your understanding of the reservoir.

  • High Confidence

    Establish high confidence in your microseismic results.

Microseismic Processing

Many geophysicists and engineers are skeptical of results from microseismic processing, perhaps with good reason (consider the Drew and White paper on azimuth uncertainty (PDF) and the Hayles et al paper on variation in results from vendors (PDF) ).

At NanoSeis we understand the skepticism in microseismic processing - we are among the critics. Our tools are built from the ground up to minimize uncertainty and produce believable results. Our processing tools are the antithesis of a black box, and in fact our deliverables include an audit trail of JPEG images of the interim results at the critical steps in the processing flows. As a customer you can review the images and decide for yourself if our results are valid.

We have worked on several projects in which microseismic borehole and surface data were acquired simultaneously, and processed independently, and we have observed that as many as 70 percent of the reported events from surface data are false positives (reported events that actually do not exist). For surface microseismic data we have focused our research on discriminating small events from false positives, and we have found a fast, simple, and robust method that is effective. The quantified version of this method we call the "Reality Factor".

Originally the core of our technology was the Narrow Beam Scan method (PDF), which is a true breakthrough technology in surface microseismic acquisition and processing. However, we realize that a great deal of surface microseismic data has already been acquired that was not designed for application of the Narrow Beam Scan method, such as grids of lines or star arrays. For reprocessing of legacy data we can apply 2D Narrow Beam Scan processing, in combination with application of the Reality Factor, for improved results.

Recently our core technology has been expanded to include MagicMoment® source mechanism inversion (PDF), which allows us to determine the source mechanism on most events, not just the large ones, during microseismic surface monitoring.