Fluid density from downhole optical measurements
First Claim
1. A method performed by a device, comprising:
- measuring at least one value using a first optical sensor and density sensor of a fluid sample in a downhole tool at a plurality of pressures;
correlating the first optical sensor measurements and the density sensor measurements;
obtaining a second optical sensor measurement of the fluid sample; and
determining a density of the fluid sample based on the second optical sensor measurement and the first optical sensor measurement correlated to the density sensor measurements.
1 Assignment
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Accused Products
Abstract
A system and method for determining at least one fluid characteristic of a downhole fluid sample using a downhole tool are provided. In one example, the method includes performing a calibration process that correlates optical and density sensor measurements of a fluid sample in a downhole tool at a plurality of pressures. The calibration process is performed while the fluid sample is not being agitated. At least one unknown value of a density calculation is determined based on the correlated optical sensor measurements and density sensor measurements. A second optical sensor measurement of the fluid sample is obtained while the fluid sample is being agitated. A density of the fluid sample is calculated based on the second optical sensor measurement and the at least one unknown value.
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Citations
18 Claims
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1. A method performed by a device, comprising:
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measuring at least one value using a first optical sensor and density sensor of a fluid sample in a downhole tool at a plurality of pressures; correlating the first optical sensor measurements and the density sensor measurements; obtaining a second optical sensor measurement of the fluid sample; and determining a density of the fluid sample based on the second optical sensor measurement and the first optical sensor measurement correlated to the density sensor measurements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification