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US 12,699,070 B2Granted
In situ treatment system and method for wellbore chemical sensors
AssigneeHalliburton Energy Services, Inc.
InventorsJohn Laureto Maida, Jr., Michel Joseph Leblanc, Neal Gregory Skinner
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Abstract
Systems and methods for a treatment of chemical sensors placed in a wellbore. A method may comprise providing a chemical sensor disposed in a sensing chamber, wherein the chemical sensor is on an optical fiber installed in a wellbore; optically interrogating the chemical sensor with the optical fiber; and pumping a treatment fluid through a fluid supply line and into the sensing chamber.
Claims20
A sensing system comprising:
- a conduit assembly to be disposed in a wellbore;
- one or more sensing chambers disposed within an interior cavity of the conduit assembly;
- one or more chemical sensors disposed in the one or more sensing chambers, wherein each of the one or more sensing chambers are fluidically connected to a fluid supply line;
- two or more seals to isolate the one or more sensing chambers from the interior cavity and to isolate the conduit assembly from the fluid supply line, wherein the fluid supply line is a different channel than the interior cavity of the conduit assembly;
- and
- a treatment fluid disposed within the fluid supply line and configured to clean, replenish, calibrate, and/or refresh the one or more chemical sensors.
3 more elements
A method comprising:
- disposing a conduit assembly into a wellbore, wherein the conduit assembly comprises:
- a sensing chamber disposed within interior cavity of the conduit assembly;
- a chemical sensor disposed in the sensing chamber;
- a fluid supply line connected to the sensing chamber through a fluid inlet;
- and
- two or more seals to isolate the sensing chamber from the interior cavity and to isolate the conduit assembly from the fluid supply line:
- moving a treatment fluid into the sensing chamber through the fluid supply line;
- and
- cleaning, replenishing, calibrating, and/or refreshing the chemical sensor with the treatment fluid, wherein the fluid supply line is a different channel than the interior cavity of the conduit assembly.
6 more elements
Dependencies are inferred from the claim text.