Bridge sensor design for water and oil analysis in formation testing
AssigneeHalliburton Energy Services, Inc.
InventorsChristopher Michael Jones, Colin Douglas Tisdale
Life of this patent
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Abstract
A downhole fluid sampling tool may include an optical measurement tool and a viewing region disposed in the optical measurement tool. In examples, a bridge may be disposed in a transparent portion of the flow path between a light source and a light modifier and an optical detector. The bridge includes a structure comprising a substrate and a contrast agent, wherein the contrast agent is any molecule configured to interact with an analyte and alter a property of the analyte and/or contrast agent, wherein the property is detectable by the optical measurement tool.
Claims20
A downhole fluid sampling tool comprising:
- an optical measurement tool;
- a flow path disposed in the optical measurement tool;
- and
- a bridge disposed in a transparent portion of the flow path forming a bridge between a light source and a light modifier and an optical detector.
A method of quantifying a total volume of water in a multiphase mixture in a downhole tool comprising:
- pumping a formation fluid in a downhole tool comprising an optical measurement tool, a flow path disposed in the optical measurement tool, a bridge disposed in a transparent portion of the flow path forming a bridge between a light source and a light modifier, and an optical detector and a contrast agent;
- selecting at least one contrast agent which is optically active in two mutually exclusive states upon exposure to water and oil;
- and
- quantifying the total volume of water within optical measurement tool by quantifying the contrast agent optically active upon exposure to water.
Dependencies are inferred from the claim text.