Patent ID: 8151879

Claim:
A zone isolation assembly for a fluid monitoring system in an existing subsurface well, the subsurface well including a casing and a fluid zone, the zone isolation assembly comprising: a fluid receiving pipe including a pipe interior and a fluid inlet structure, the fluid receiving pipe receiving a fluid through the fluid inlet structure into the pipe interior; a docking receiver that is connected to the fluid receiving pipe; a docking apparatus that moves between (i) a docked position wherein the docking apparatus is docked with the docking receiver, and (ii) an undocked position wherein the docking apparatus is undocked with the docking receiver, the docking apparatus including a docking weight and a resilient seal positioned around a circumference of the docking weight to achieve a fluid-tight seal between the docking receiver and the docking apparatus; and a first sealer that is spaced apart from the docking apparatus, the first sealer selectively forming a fluid-tight seal between the fluid receiving pipe and the casing to divide the fluid zone into a first zone and a spaced apart second zone that is not in fluid communication with the first zone when the docking apparatus is in the docked position; the docking apparatus includes a pump assembly for moving the fluid away from the first zone.