MicroSeismic offers its Passive Seismic Emission Tomography (PSET) technology to precisely locate microseismic events. This patented microseismic monitoring, mapping, and analysis process employs beam steering to gather and sum the output, detecting event hypocenters with high accuracy.
All collected microseismic data is transmitted to a central recording and processing facility. Our analysis provides an accurate understanding of the reservoir’s heterogeneity and the geologic conditions from which hydrocarbons are being extracted. Our technology also allows geologists to integrate microseismic data with other sub-surface data to better understand the reservoir.
Our technology differentiator comes from our depth migration algorithms which calculate a more complete picture and precise view of the reservoir in real-time. Downhole monitoring methods are unable to offer this level of investigation due to their limited aperture.
PSET monitoring has been successfully employed on more than 15,000 stages throughout plays in N. America; as well as projects in 11 countries around the world.
In addition to PSET monitoring capabilities, the technology also includes the ability to automatically alert in real-time, on user selected event types. For example, when monitoring for cap rock integrity during steam injection, PSET Alerting can trigger immediate notifications when out-of-zone steam migration causes a seismic event of a set threshold value. Similarly, when used for seismicity monitoring, PSET Alerting can provide instant and unassisted notice of larger than expected magnitude events.
PSET generated event sets are available for customer analysis through the MicroSeismic Reservoir Intelligence (MRI) portal. These events can be viewed online in 3D via the PSET Viewer application. This capability allows organizations to see all of their microseismic results in a single repository as well as manipulate the event set data for additional analysis on an as-needed basis.
PSET VTI (Vertical Transverse Isotropy) is an interactive calibration tool used to characterize anisotropic velocity models. This provides a clearer, more precise image of microseismic event locations. Using PSET VTI reduces vertical event position error. PSET algorithms, taken as a whole, limit errors in X, Y, and Z directions between +/- 10’ to 50’, varying by signal quality and event magnitude.
For more information on PSET™, contact MicroSeismic.
In 2010, MicroSeismic received patent 7,663,970 for the method of passive seismic emission tomography (PSET). The following year, three more patents were granted to include: a method for passive seismic emission tomography including polarization correction for source mechanisms (7,978,563), a method for imaging the earth’s subsurface using passive seismic sensing (7,986,587), and a method of passive seismic emission tomography using an adaptive velocity filter (8,064,288). MicroSeismic’s fifth patent, granted in 2012, is a method for imaging the earth’s subsurface using passive seismic interferometry and adaptive velocity filtering (8,218,394).
MicroSeismic, Inc. trademarks are also registered marks in the USA, Canada and other nations.