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US 7,395,704 B2Granted
Method and apparatus for downhole fluid analysis using molecularly imprinted polymers
AssigneeBaker Hughes Incorporated
InventorRocco DiFoggio
Life of this patent
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Abstract
The present invention provides a downhole method and apparatus using molecularly imprinted polymers to analyze a downhole fluid sample or determine the percentage of oil based mud filtrate contamination in a formation fluid sample.
Claims36
An apparatus for estimating a property of a gas diffused from a downhole fluid comprising:
- a flow line receiving the downhole fluid;
- a chamber receiving the downhole fluid from the flow line;
- a pump evacuating the chamber;
- an analyte selective sensor in communication with the gas diffused from the downhole fluid in the chamber;
- and
- a processor that uses a characteristic of the sensor to estimate the property of the gas diffused from the downhole fluid.
3 more elements
A method for estimating a property of a gas diffused from a downhole fluid, comprising:
- flowing the downhole fluid through a flow line;
- evacuating a chamber in communication with the flow line to cause a vacuum pressure in the chamber;
- receiving the downhole fluid from the flow line into the chamber;
- exposing an analyte selective sensor in the chamber to the gas diffused from the down hole fluid;
- and
- estimating the property of the gas diffused from the downhole fluid based on a response associated with the sensor.
3 more elements
A system for estimating a property of a gas diffused from a downhole fluid comprising a bore transecting a zone containing the down hole fluid;
- a wireline conveyed downhole tool;
- a flow line associated with the downhole tool, the flow line receiving the downhole fluid pumped from the formation;
- a chamber receiving the downhole fluid from the flow line;
- a pump configured to evacuate the chamber and create a vacuum pressure in the chamber;
- an analyte specific sensor associated with the gas diffused from the down hole fluid;
- and
- a processor that uses a response associated with the sensor and estimates the property of the gas diffused from the downhole fluid.
4 more elements
Dependencies are inferred from the claim text.