Well Testing Techniques

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Exploration Technique: Well Testing Techniques

Exploration Technique Information
Exploration Group: Downhole Techniques
Exploration Sub Group: Well Testing Techniques
Parent Exploration Technique: Downhole Techniques
Information Provided by Technique
Lithology: Enable estimation of in-situ reservoir elastic parameters
Stratigraphic/Structural: Fracture distribution, formation permeability, and ambient tectonic stresses
Hydrological: provides information on permeability, location of permeable zones recharge rates, flow rates, fluid flow direction, hydrologic connections, storativity, reservoir pressures, fluid chemistry, and scaling.
Thermal: Temperature variations with time

Extrapolate the true temperature of formation

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Well Testing Techniques:
Tests conducted on a well to learn about the reservoir conditions, estimate the wells production/injection potential, and quantify the overall resource.
Other definitions:Wikipedia Reegle


 
Introduction
Well testing procedures are carried out on all newly drilled wells to determine the characteristics of the well and the formations it passes through. Most often the main goal of the well tests is to determine the productivity potential of a new well. Well testing involves an array of measurements and multiple types of downhole instruments for gathering information on the well characteristics.
 
Use in Geothermal Exploration
Well tests are conducted to quantify well characteristics, production potential, and reservoir properties. Well tests are essential for exploration and production drilling, well maintenance, and geothermal field management. The tests ultimately help in optimal and sustainable utilization of the geothermal resource.

 
Field Procedures
Well testing involves lowering numerous types of sensors down the well. Most often a well logging truck equipped with a wireline winch is used.

Geothermal well testing in Iceland. Photo by Jon Ragnarsson.[1]



 
Best Practices
Well tests are normally conducted upon completion of drilling, but before removal of the drill rig so that the drill rig pump can be used for some of the tests.









 
References
  1. Jon Ragnarsson. Geothermal Well Testing and Evaluation [Internet]. 2013. Iceland Geosurvey. [cited 2013/10/18]. Available from: http://www.geothermal.is/geothermal-well-testing-and-evaluation


No exploration activities found.



      Document # Analysis
      Type
      Applicant Geothermal
      Area
      Lead
      Agency
      District
      Office
      Field
      Office
      Mineral
      Manager
      Surface
      Manager
      Development
      Phase(s)
      Techniques
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      DOI-BLM-NV-B020-2011-0026-EA EA Ram Power Silver Peak Geothermal Area BLM BLM Battle Mountain District Office BLM BLM Geothermal/Exploration Drilling Techniques
      Exploration Drilling
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      DOI-BLM-NV-B020-2012-0214-EA EA Rockwood Lithium Inc Silver Peak Geothermal Area Bureau of Land Management BLM Battle Mountain District Office Bureau of Land Management Bureau of Land Management Geothermal/Exploration Drilling Techniques
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      DOI-BLM-NV-C010-2010-0006-EA EA Ormat Technologies Inc Gabbs Valley Geothermal Area BLM BLM Carson City District Office BLM Stillwater Field Office BLM BLM Geothermal/Exploration Downhole Techniques
      Drilling Techniques
      Exploration Drilling
      Well Testing Techniques
      DOI-BLM-NV-C010-2010-0008-EA EA Magma Energy Soda Lake Geothermal Area BLM BLM Carson City District Office BLM Stillwater Field Office BLM BLM Geothermal/Exploration Downhole Techniques
      Drilling Techniques
      Exploration Drilling
      Well Testing Techniques
      DOI-BLM-NV-C010-2010-0010-EA EA Terra-Gen Power LLC Dixie Valley Geothermal Area BLM BLM Carson City District Office BLM Stillwater Field Office BLM BLM Geothermal/Exploration Downhole Techniques
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      DOI-BLM-NV-C010-2011-0001-EA EA Terra-Gen Power LLC Coyote Canyon Geothermal Area Bureau of Land Management BLM Carson City District Office BLM Stillwater Field Office Bureau of Land Management Bureau of Land Management Geothermal/Power Plant Exploration Drilling
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      DOI-BLM-NV-C010-2011-0501-EA EA Gradient Resources Patua Geothermal Area BLM BLM Carson City District Office BLM Stillwater Field Office
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      BLM BLM
      Bureau of Reclamation
      Geothermal/Well Field Development Drilling
      Exploration Drilling
      Well Testing Techniques
      DOI-BLM-NV-C010-2012-0029-EA EA Ormat Technologies Inc Tungsten Mountain Geothermal Area BLM BLM Carson City District Office BLM Stillwater Field Office BLM BLM Geothermal/Well Field Downhole Techniques
      Drilling Techniques
      Exploration Drilling
      Well Testing Techniques
      DOI-BLM-NV-W010-2010-0004-EA EA Terra-Gen Power LLC New York Canyon Geothermal Area BLM BLM Winnemucca District Office BLM Humboldt River Field Office BLM BLM Geothermal/Exploration Well Testing Techniques
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      Slim Holes
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      Well Testing Techniques
      DOI-BLM-NV-W010-2011-0001-EA EA Ormat Technologies Inc Grass Valley Geothermal Area BLM BLM Winnemucca District Office BLM Humboldt River Field Office BLM BLM Geothermal/Exploration
      Geothermal/Well Field
      Development Drilling
      Exploration Drilling
      Well Testing Techniques
      DOI-BLM-OR-P000-2010-0003-EA EA Davenport Power LLC Newberry Caldera Geothermal Area BLM BLM Prineville District Office BLM United States Forest Service Geothermal/Exploration Drilling Techniques
      Exploration Drilling
      Passive Seismic Techniques
      Seismic Techniques
      Well Testing Techniques
      DOI-BLM-OR-V040-2011-0008-EA EA US Geothermal Inc Neal Hot Springs Geothermal Area Bureau of Land Management BLM Vale District Office BLM BLM Geothermal/Well Field Development Drilling
      Well Testing Techniques


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