MicroSiesmic Full-Wave Location (MS-FWL) Method

The Full-Wave Location (FWL) method has significant advantages and proven records of success in mapping and characterizing microseismic events in both geological and mechanical bases. We provide complete cycle of microseismic monitoring surveys with regards to acquisition, processing, modeling, simulation, and interpretation.

The MS-FWL method can characterize microseismic events based on their geological and mechanical origins (e.g., their coordinates, tensors, types (VOL, DC, or CLVD), S/N ratios, and frequency of occurrences). The method is based on the evaluation of the likelihood function to distinguish between signals and noise in the microseismic data. Data processing and analyses are performed on our in-house MSR software to identify microseismic events location with their characteristics (positions in space, amplitude, seismic moment tensors, etc) and then correlate it with models constructed based on geologic information provided to start the interpretation processes.

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An example of water injection microseismic monitoring on an oil reservoir at a depth of 1760m (5808 ft) over a period of 40 days. On the left is the first five days of progression and on the right is the whole 40 days period. The injection took place at well-9965. Total of 40 3C sensors were used.