Microseismic monitoring of Chocolate Bayou, Texas. The Pleasant Bayou No.2 Geopressured/geothermal energy test-well program. 1982 annual progress report.

To investigate seismic risks associated with geopressured fluid production from the Pleasant Bayou No. 2 design well, a seismic monitoring program was conducted in the vicinity of the Brazoria County design wells since 1979. The monitoring program was designed first to establish the nature of the local ambient seismicity prior to production, and second to provide continued surveillance of the area during the well tests to determine if production altered ambient seismic significantly. The operation, data analyses, results and conclusions of the Brazoria seisimic network during the operational period from 1 January through 31 December 1982 are described.