The attached spreadsheet contains a content model workbook for exchange of information about fluid fluxes into or out of a well. A generic model is intended to be generic, allowing for oil, gas, water, steam production or injection (negative flow). Three observation types are specified--geothermal production (includes power generated), production (oil, gas, water, other flows from a well), and injection (any fluid flowed into well). Because of the wide variety of possible flow measurements (commodities, aggregation type), the model adopts a thin approach, which may result in many records being returned for a single well. Thus most data about the well is linked through the HeaderURI instead of included inline to keep the redundant data volume down.

THIS CONTENT MODEL HAS BEEN SUPERSEDED BY FLUID FLUX BOREHOLE OBSERVATION. PLEASE SEE http://repository.usgin.org/uri_gin/usgin/dlio/577. This spreadsheet indicates the content requested for fluid production data obtained from geothermal wells for the AASG geothermal data project. Typically production volumes are recorded from reports, and this information will be provided through a fluid production service. The HeaderURI for a particular well is the cross-referencing link (foreign key) used to associate the header record, well logs, temperature measurements, and other information with the production record.

This Well Header data set contains basic information describing well boreholes in Nevada associated with thermal properties. Each well header has a separate record (rows) for each well bore. The data set contains 871 records.

Pressure decline within The Geysers geothermal reservoir has resulted in decreased power output from existing power plants. As a means of partially arresting these ,pressure declines, several field operators and the County of Lake propose to add approximately 13,000 lpm of treated municipal waste water from several small communities into 6 injection wells in the southeastern corner of the field. Water will be carried to the geothermal field via a 50- or 6O-cm diameter pipeline from the vicinity of Clear Lake, a distance of about 45 km. The results of this study suggest that the proposed injection of effluent could help reducing the high rate of pressure and production rate declines without inducing significant geochemistry incompatibility or microseismicity.