Mapping Diffuse Seismicity for Geothermal Reservoir Management with Matched Field Processing Geothermal Lab Call Project
Last modified on July 22, 2011.
|Project Title||Mapping Diffuse Seismicity for Geothermal Reservoir Management with Matched Field Processing|
|Project Type / Topic 1||Laboratory Call for Submission of Applications for Research, Development and Analysis of Geothermal Technologies|
|Project Type / Topic 2||Induced Seismicity|
|Project Description||Accurate identification and mapping of the large numbers of micro earthquakes induced in EGS is one technique that provides diagnostic information when determining the location, orientation and length of underground crack systems for use in reservoir development and management applications. Conventional earthquake location techniques often are employed to locate micro earthquakes. However, these techniques require picking individual seismic phase onsets across a network of sensors. This process is labor-intensive and poorly suited to rapid turn-around situations, such as providing feedback during hydraulic fracture operations. Additionally, fluid injection frequently induces a large number of events with overlapping waveforms, which can complicate the picking of phases or completely obscure the onset of smaller signals.|
|Objectives||Detect and locate micro earthquake induced by EGS hydrofracturing and fluid reinjection operations using matched field processing (MFP) to aid in the characterization of reservoir fracture networks.|
|Awardees (Company / Institution)|| Lawrence Livermore National Laboratory
|Funding Opportunity Announcement||DE-PS36-09GO99017|
|DOE Funding Level (total award amount)||$925,000.00|
|Total Project Cost|| $925,000.00
|Principal Investigator(s)|| Dennise C. Templeton
|Targets / Milestones|| - Obtain a seismic array data set in a geothermal area, to be used in empirical and model-based MFP.
|Location of Project|| Livermore, CA
|Funding Source||American Recovery and Reinvestment Act of 2009|
|References||EERE Geothermal Technologies Programs|