Thermochem - Tracer Flow Testing System (TFT)

The TFT® concept was originally developed by Thermochem over 25 years ago and is the only TFT® process used routinely in the USA, Indonesia, The Philippines, Central America, Hawaii, Iceland, New Zealand and Africa. This is the system chosen by all the major geothermal operators in the world, including Supreme Energy, Star Energy, Pertamina, GeoDipa, Sarulla Operations, Ormat, Energy Development Corporation, KenGen, Mercury, Contact Energy and Reykjavik Energy.

Geothermal well flow testing is conducted by field operators to assess the energy potential of a well and gain valuable information to assist in reservoir modeling and designing power stations. Once wells are on-line and producing to a plant, it is important to continue flow testing to monitor changes in output and enthalpy, which may occur due to processes such as injection breakthrough, scaling, local boiling and steam cap formation.

Traditionally geothermal well flow testing has been carried out using a production test separator or an atmospheric separator and James-Tube. The separators required are very costly and the James-Tube method is only an empirical correlation with limited accuracy. Wells producing to a plant with shared separators must be taken off-line for testing, disrupting operations and causing lost generation revenue.

• Low injection rates of non-hazardous tracers
• Extremely large turn-down: > 4 magnitudes
• Fundamental, traceable measurements
• True weighted average under surging flow
• No corrections for tracer partitioning
• Dedicated portable analyzers
• Provides real-time liquid mass flow-rate data
• On-site field analysis options available
• Automated on-line systems (CTFT®)