Groundwater monitoring technologies applied to carbon dioxide sequestration

Abstract

A fluid monitoring system for a subsurface well in a subterranean formation includes a first zone isolator, a second zone isolator, a fluid inlet, a first pressure canister and a first gas-in line. The first and second zone isolators are positioned in the subsurface well. The fluid inlet receives fluid from the subterranean formation. The first pressure canister is positioned between the first zone isolator and the second zone isolator. The first pressure canister receives the fluid at an in-situ pressure. The first gas-in line selectively delivers a gas to the first pressure canister to pressurize the first pressure canister so that the first pressure canister is adapted to be removed from the subsurface well at a substantially similar pressure as the in-situ pressure. In one embodiment, the first pressure canister receives the fluid at an in-situ temperature. In this embodiment, the first pressure canister is adapted to be removed from the subsurface well at a substantially similar temperature as the in-situ temperature.

1 . A fluid monitoring system for a subsurface well in a subterranean formation, the fluid monitoring system comprising:
 a first zone isolator positioned in the subsurface well;   a second zone isolator positioned in the subsurface well;   a fluid inlet that receives fluid from the subterranean formation;   a first pressure canister positioned between the first zone isolator and the second zone isolator, the pressure canister receiving the fluid at an in-situ pressure; and   a first gas-in line that selectively delivers a gas to the pressure canister to pressurize the pressure canister so that the pressure canister is adapted to be removed from the subsurface well at a substantially similar pressure as the in-situ pressure.   
   
   
       2 . The fluid monitoring system of  claim 1  wherein the pressure canister receives the fluid at an in-situ temperature, and wherein the pressure canister is adapted to be removed from the subsurface well at a substantially similar temperature as the in-situ temperature. 
   
   
       3 . The fluid monitoring system of  claim 1  further comprising:
 a docking receptacle positioned in the subsurface well,   a docking apparatus that selectively docks with the docking receptacle in the subsurface well;   a second pressure canister that is positioned so that the docking apparatus is between the docking receptacle and the pressure canister, the pressure canister receiving the fluid at an in-situ pressure; and   a second gas-in line that selectively delivers a gas to the pressure canister to pressurize the pressure canister so that the pressure canister is adapted to be removed from the subsurface well at a substantially similar pressure as the in-situ pressure.   
   
   
       4 . A fluid monitoring system for a subsurface well in a subterranean formation, the subsurface well having a surface region, the fluid monitoring system comprising:
 a docking receptacle positioned in the subsurface well;   a docking apparatus that selectively docks with the docking receptacle in the subsurface well;   a fluid inlet that receives fluid from the subterranean formation;   a pressure canister that is positioned so that the docking apparatus is between the docking receptacle and the pressure canister, the pressure canister receiving the fluid at an in-situ pressure; and   a gas-in line that selectively delivers a gas to the pressure canister to pressurize the pressure canister so that the pressure canister is adapted to be removed from the subsurface well at a substantially similar pressure as the in-situ pressure.   
   
   
       5 . The fluid monitoring system of  claim 4  wherein the pressure canister receives the fluid at an in-situ temperature, and wherein the pressure canister is adapted to be removed from the subsurface well at a substantially similar temperature as the in-situ temperature.