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US 2018/0045633 A1Published application
Apparatus and methods for determining surface wetting of material under subterranean wellbore conditions
AssigneeHalliburton Energy Services, Inc.
InventorsVenkata Gopala Rao Palla, Bhargav Gajji, Sameer Bardapurkar, Sairam KS Pindiprolu
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Abstract
Methods and apparatuses for determining surface wetting of metallic materials at downhole wellbore condition with fixed or changing well fluids are disclosed. In general, the methods according to the disclosure include carrying out an electrical impedance spectroscopy (“EIS”) for a system simulating downhole conditions for the wetting of a surface by simultaneously dynamically moving electrodes exposed to the well fluid while measuring the changes in electrical characteristics between the electrodes.
Claims10
A method comprising the steps of:
- a. providing a first and second electrodes each having a surface thereon;
- b. wetting the surfaces on the first and second electrodes with a first fluid;
- c. immersing the surfaces on the first and second electrodes in a second fluid;
- d. moving the first and second electrodes in the second fluid;
- and
- e. at least once during or after applying the moving step, making an electrical impedance spectroscopy measurement between the first and second electrodes while maintaining the electrodes electrically insulated from each other and immersed in the second fluid.
3 more elements
Dependencies are inferred from the claim text.