Measuring an adsorbing chemical in downhole fluids
AssigneeHalliburton Energy Services, Inc.
InventorsChristopher M. Jones, Michael T. Pelletier, Mark Proett
Life of this patent
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Abstract
Interaction of adsorbing chemicals with a downhole tool presents inaccuracies in the adsorbing chemical measurement and analysis. The principles of the present disclosure provide a method and system of sampling fluids including an adsorbing chemical in a subterranean reservoir. One method may include modeling an interaction between the adsorbing chemical and a downhole tool, applying the model to a measurement of the adsorbing chemical, and adjusting the measurement in response to applying the model.
Claims20
A method to detect a chemical in a subterranean reservoir comprising:
- simulating behavior of a chemical as the chemical moves from a reservoir to a location within a downhole tool;
- based on the simulation, using mathematical fitting to generate a model of the behavior;
- using the downhole tool, sampling a downhole fluid containing the chemical;
- characterizing a response of the downhole tool to the chemical using the model, wherein characterizing includes defining a characteristic that corresponds to at least one of an adsorption and desorption interaction between the downhole fluid and downhole tool;
- and
- operating the downhole tool in response to the characterization.
A tool for sampling fluids including a chemical in a subterranean reservoir, comprising:
- a formation tester having a sampling chamber;
- and a processor coupled to the formation tester to perform operations comprising:
- simulating behavior of a chemical as the chemical moves from a reservoir to the sampling chamber;
- based on the simulation, using mathematical fitting to generate a model of the behavior;
- using the formation tester, sampling a downhole fluid containing the chemical;
- characterizing a response of the formation tester to the chemical using the model, wherein characterizing includes defining a characteristic that corresponds to at least one of an adsorption and desorption interaction between the downhole fluid and downhole tool;
- and operating the formation tester in response to the characterization.
Dependencies are inferred from the claim text.