Use of nanotracers for imaging and/or monitoring fluid flow and improved oil recovery
AssigneeSchlumberger Technology Corporation
InventorsJOSE ANTONIO RIVERO, SHAD W. SIDDIQUI
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Abstract
A method of monitoring a reservoir during an oil recovery process includes placing a plurality of electrodes proximate the reservoir, injecting a nanoparticle dispersion into the reservoir with an injection fluid, and recording a current measurement and a voltage measurement from the plurality of electrodes with an electronic control module during the oil recovery process.
Claims20
A method of monitoring a reservoir during an oil recovery process comprising:
- placing a plurality of electrodes proximate the reservoir;
- injecting a nanoparticle dispersion into the reservoir with an injection fluid;
- and
- recording a current measurement and a voltage measurement from the plurality of electrodes with an electronic control module during the oil recovery process.
A method of imaging a reservoir during oil recovery using electric resistance tomography comprising:
- placing a plurality of electrical resistance tomography electrodes proximate the reservoir;
- preparing a nanoparticle dispersion of a conductive nanopowder in deionized water;
- injecting the nanoparticle dispersion into the reservoir with an injection fluid;
- recording a current measurement and a voltage measurement from the plurality of electrodes with an electronic control module;
- processing the current measurements and voltage measurements to obtain resistivity values;
- and
- creating a graphical image of the reservoir using the resistivity measurement with the electronic control module.
A method of monitoring fluid flow and improving oil recovery comprising placing a plurality of electrodes proximate the reservoir;
- increasing a conductivity of an injection fluid by adding a nanoparticle dispersion to the injection fluid;
- injecting the injection fluid having the nanoparticle dispersion into the reservoir;
- recording a current measurement and a voltage measurement from at least four of the plurality of electrodes;
- and
- producing a graphical image using the current measurement and the voltage measurement.
Dependencies are inferred from the claim text.