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US 11,630,233 B2Granted
Predicting contamination and clean fluid properties from downhole and wellsite gas chromatograms
AssigneeHalliburton Energy Services, Inc.
InventorsPeter Ojo Olapade, Bin Dai, Christopher Michael Jones
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Abstract
A method may comprise forming a data matrix, extracting chromatographs of a mud filtrate and a formation fluid, extracting concentration profiles of the mud filtrate and the formation fluid, and decomposing a data set on an information handling machine using a bilinear model. A system may comprise a downhole fluid sampling tool and an information handling tool. The downhole fluid sampling tool may comprise one or more multi-chamber sections, one or more fluid module sections, one or more gas chromatographers, wherein the one or more gas chromatographers are disposed in the one or more fluid module sections, and an information handling system.
Claims21
A method comprising:
- collecting at least a first sample and a second sample from a downhole fluid with a downhole fluid sampling tool;
- measuring the first sample and the second sample in a chromatograph to form a first chromatogram from the first sample and a second chromatogram from the second sample;
- forming a data matrix, wherein the data matrix comprises the first chromatogram and the second chromatogram;
- extracting the first chromatogram and the second chromatogram, wherein the first chromatogram is from a mud filtrate and the second chromatogram is from a formation fluid;
- extracting concentration profiles of the mud filtrate and the formation fluid;
- and
- decomposing a data set on an information handling machine using a bilinear model.
4 more elements
A method comprising:
- disposing a downhole fluid sampling tool into a wellbore at a first location, wherein the downhole fluid sampling tool comprises:
- at least one multi-chamber section;
- at least one fluid module section;
- and
- activating a pump to draw a solids-containing fluid disposed in the wellbore into the downhole fluid sampling tool;
- raising the downhole fluid sampling tool to surface;
- disposing the solids-containing fluid into a gas chromatograph;
- measuring the drilling fluid filtrate from the solids-containing fluid with the gas chromatograph to form data, wherein the data comprises chromatograms from each of two or more samples, wherein the two or more samples comprise a mud filtrate and a formation fluid;
- inputting the data into an information handling system;
- forming a data matrix from the data;
- extracting chromatographs of flail the mud filtrate and the formation fluid from the solids-containing fluid;
- extracting a concentration profile of the mud filtrate and the formation fluid;
- and
- decomposing a data set on an information handling machine using a bilinear model.
11 more elements
A system comprising:
- a downhole fluid sampling tool comprising:
- one or more multi-chamber sections;
- one or more fluid module sections;
- one or more gas chromatographs, wherein the one or more gas chromatographs are disposed in the one or more fluid module sections;
- and
- an information handling system configured to:
- form a data matrix;
- extract chromatographs of a mud filtrate and a formation fluid from the downhole fluid sampling tool;
- extract a concentration profile of the mud filtrate and the formation fluid from the downhole fluid sampling tool;
- and
- decompose a data set with, D=CST+E, wherein D is the data matrix, C is the concentration profile of the mud filtrate and the formation fluid, S is the chromatographs of the mud filtrate and the formation fluid, T is a transpose of matrix S, and E is error.
8 more elements
A method comprising:
- disposing a downhole fluid sampling tool into a wellbore at a first location, wherein the downhole fluid sampling tool comprises:
- at least one multi-chamber section;
- at least one fluid module section;
- and
- activating a pump to draw a solids-containing fluid disposed in the wellbore into the downhole fluid sampling tool;
- raising the downhole fluid sampling tool to surface;
- disposing the solids-containing fluid into a gas chromatograph;
- measuring the drilling fluid filtrate from the solids-containing fluid with the gas chromatograph to form data;
- inputting the data into an information handling system;
- forming a data matrix from the data;
- extracting chromatographs of a mud filtrate and formation fluid from the solids-containing fluid;
- extracting a concentration profile of the mud filtrate and the formation fluid;
- and
- decomposing a data set on an information handling machine using a bilinear model wherein the bilinear model is D=CST+E, wherein D is the data matrix, C is the concentration profile of the mud filtrate and the formation fluid, S is the chromatographs of the mud filtrate and the formation fluid, T is a transpose of matrix S, and E is error.
11 more elements
Dependencies are inferred from the claim text.