Thermochem - High Temperature 2-Phase Downhole Sampler (DHS) / PTS Tool- Brochure

Geothermal wells are typically sampled for geochemistry at the wellhead, which only provides an average composition of the fluids from depth. Unless the well is pumped, sampling occurs after flashing and scale deposition. Downhole sampling allows vertical profiling of geochemistry with depth, so that each entry can be defined for reservoir model development and simulations. It can also identify specific problematic fluid zones such as high gas, acidic brine or incompatible fluids that cause scaling upon mixing in the wellbore. Pre-flash fluids can be collected before calcium and trace metals have deposited for an accurate reconstruction of the original reservoir fluids.