Mudlogging device with dual interferometers
AssigneeIball Instruments LLC
InventorCarl Bright
Life of this patent
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Abstract
A mudlogging device may consist of a housing that is positioned above a ground level and proximal a wellbore. The housing can have a first interferometer and a second interferometer that are connected to a common pathway. The duel interferometer configuration may allow a gas sample to be concurrently tested by the respective interferometers.
Claims22
An apparatus comprising a housing positioned above a ground level and separated from a wellbore, the housing containing first and second interferometers connected to a common pathway in a single container to allow a single gas sample to be concurrently tested by the respective interferometers, each interferometer connected to a gas cell comprising reflecting surfaces configured to optically detect gas molecules, the first interferometer having a first pair of reflecting surfaces configured to detect different gas molecules in combination with a first detector than a second pair of reflecting surfaces of the second interferometer in combination with a second detector.
An apparatus comprising:
- a housing having a controller, the housing positioned proximal to and outside of a wellbore;
- a gas separator providing an inlet of the housing a gas sample;
- a first interferometer positioned in the housing and configured to test for hydrocarbon based gasses, the first interferometer comprising a first gas cell and a first detector, a first pair of reflecting surfaces positioned within the first gas cell and connected to the first detector;
- and
- a second interferometer positioned in the housing and connected to a common pathway with the first interferometer, the second interferometer comprising a second gas cell and a second detector, configured to test for a gas other than the hydrocarbons concurrently while the first interferometer tests for the hydrocarbon based gasses, a second pair of reflecting surfaces positioned within the second gas cell.
A method comprising:
- positioning first and second interferometers in a housing, each interferometer comprising a pair of reflecting surfaces positioned in a gas cell and connected to a detector ,the first interferometer configured to detect a first amount of a first gas molecule, the second interferometer configured to detect a second amount of a second gas molecule, the first and second gas molecules being different;
- connecting the first and second interferometers to a common pathway;
- and
- detecting the first and second gas molecules in a gas sample concurrently by the respective interferometers.
Dependencies are inferred from the claim text.