US Patent 7967067 Coiled tubing deployed single phase fluid sampling apparatus

A coiled tubing deployed fluid sampler (50) for collecting a single phase fluid sample from a well. The fluid sampler (50) is actuated to establish fluid communication between an interior (56) and an exterior of the fluid sampler (50) such that a fluid sample is obtained from the well in a chamber (92) of the fluid sampler (50). The fluid pressure in the coiled tubing string is then increased, which pressurizes the fluid sample in the chamber (92). Thereafter, the coiled tubing and the fluid sampler (50) are retrieved to the surface with the pressurized fluid sample remaining above its saturation pressure during collection and retrieval to the surface.