Water/Gas Sampler Probes

RG offers water and gas sampler probes in a range of popular sizes. The probes are designed to take discrete samples of well fluid at particular depths and to return them to the surface.

PRINCIPLE OF MEASUREMENT
Water sampler: 
The water sampler includes a chamber incorporating motor-actuated valves at the top and base. While the probe is being lowered into the borehole, the valves are held open, allowing well fluid to flow freely through the chamber. At the desired depth, the motor is activated under surface control, closing the valves to seal the chamber and contents for retrieval.
Gas sampler: 
RG gas samplers are designed to retrieve uncontaminated samples of well fluids comprising or containing gas, whilst maintaining the original well pressures. The probes are based on a sample chamber with a moveable piston and a motor-actuated valve. Prior to logging, the piston is withdrawn manually and locked into position, leaving a partial vacuum within the sample chamber. When sampling, the valve is opened under surface control, allowing the well fluid to enter the chamber. The valve is then resealed, enclosing the sample under ambient pressure. At the surface, the fluid can be transferred while still under pressure to a suitable container for analysis.