Established in 1977, the Geothermal Division has participated in drilling and scientific data collection pertaining to exploration wells in the Dieng Plateau, Kamojang, and other geothermal fields in Indonesia.

The operation of subsurface instrumentation for geothermal well study began in 1978. All equipment is privately owned and operated by PT GEOSERVICES personnel. The engineers have been factory-trained by the Kuster Company (California) and the Geophysical Research Corporation (Oklahoma).

In conjunction with associated divisions, the Geothermal Division provides a complete services package, including surface study, drilling, engineering, well study, and production testing.

WELL MEASUREMENT

  • Static Formation Temperature Testing
  • Water Loss Testing
  • Injectivity Testing
  • Pressure Fall-off Testing
  • Pressure Build-up Testing
  • Pressure and Temperature Monitoring during heating-up periods
  • Pressure and Temperature Monitoring while flowing

PRODUCTION TESTING

  • Flow Rate Measurement
  • Enthalpy Measurement
  • Pressure Build-up Testing
  • Gas, Water, & Condensate
  • Water and Gas Analysis
  • Sampling (field and laboratory)

CALIBRATION AND REPAIR
Operation of Mechanical Downhole Equipment

VALVE MAINTENANCE

  • Installation
  • Cleaning and Inspection
  • Routine Maintenance
  • Nitrogen Purging
  • Pressure Testing

H2S SAFETY MONITORING

To meet the most challenging demands for geothermal engineering services, this division maintains a range of reliable downhole instruments and surface facilities that are supported by a comprehensive calibration workshop:

  • Mathey hydraulic winch with stainless steel /carpenter wire up to 20,000ft(3 units)
  • Kuster subsurface pressure, temperature, sampler and flowmeter (9 units)
  • Chart Reader for pressure, temperature and flowmeter measurements (3 units)
  • Calibrations Units, Dead Weight tester, Hot air, Oil bath, and Manometer
  • H2S Monitoring System (2 units)

RELATED SERVICES

  • Chemical Analysis of Water and Gas
  • Exploration Services (geology, geochemistry, and geophysics)
  • Slim Hole Coring (temperature gradient)
  • Environmental Study
  • Core Slabbing and Preservation

 Jl. Setiabudi 79 – 81, Bandung 40153
Phones : (022) 203 1316, (022) 423 2306, (022) 203 8309
Fax : (022) 203 1198
Email : gogdiv@geoservices.co.id