Patent ID: 7660199
Filing Date: 2010-02-09
Classification: G01V

Abstract:
1. A method of detecting and locating a microseismic event, comprising: providing an estimate of space for a location of a source; providing an estimate of a velocity model for a formation; after providing the estimates, receiving data of a microseismic event with a first seismic sensor located on a tool in a wellbore; receiving data of the microseismic event with a second seismic sensor located on the tool; selecting an instant in time; selecting a plurality of locations in the estimated space, wherein the estimated space is not between the first and second sensors; utilizing the receiving data to determine a first break using forward modelled traveltimes; determining, with a processor, whether the data received by the first sensor and the data received by the second sensor coalesce at any of the selected locations at the instant; and determining, with a processor, the location of the source.