Apparatus for measuring rheological parameters and methods for its operation
AssigneeIndian Institute of Technology Madras
InventorsJitendra Sangwai, Chirag Khalde
Life of this patent
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Abstract
An apparatus for measuring rheological parameters of a multi-phase fluid is provided. The apparatus includes a static chamber containing a multi-phase fluid having at least a first phase and a second phase. The apparatus also includes a rotor member submersed in the multiphase fluid in the static chamber. The rotor member includes a first set of threads formed on a first portion of the rotor member submersed in the first phase of the multi-phase fluid and a second set of threads formed on a second portion of the rotor member submersed in the second phase of the multi-phase fluid.
Claims31
An apparatus for measuring rheological parameters of a multi-phase fluid, the apparatus comprising:
- a static chamber containing a multi-phase fluid having at least a first phase and a second phase;
- and
- a rotor member submersed in the multi-phase fluid in the static chamber and rotatable about a rotational axis within the static chamber, wherein the rotor member comprises a first set of threads formed on a first portion of the rotor member submersed in the first phase of the multi-phase fluid and a second set of threads formed on a second portion of the rotor member submersed in the second phase of the multi-phase fluid, wherein the first phase of the multi-phase fluid is disposed above the second phase of the multi-phase fluid, wherein the first set of threads is disposed above the second set of threads, and wherein a pitch and a depth of the first set of threads and the second set of threads are selected based upon a density and viscosity of each of the first phase and the second phase of the multi-phase fluid, a required degree of mixing, or combinations thereof.
An apparatus for measuring rheological parameters of a multi-phase fluid, the apparatus comprising:
- a static chamber containing a multi-phase fluid having at least a first phase and a second phase;
- a rotor member submersed in the multi-phase fluid in the static chamber and rotatable about a rotational axis within the static chamber to apply a shear stress to the multi-phase fluid, wherein the rotor member comprises a first portion having a first set of threads formed thereon in a first direction and a second portion having a second set of threads formed thereon in a second direction that is opposite to the first direction;
- and
- a processing circuitry configured to estimate the rheological parameters of the multi-phase fluid as the rotor member is rotated within the static chamber,
- wherein the first phase of the multi-phase fluid is disposed above the second phase of the multi-phase fluid, and wherein the first set of threads is disposed above the second set of threads,
- and wherein a height of the first portion and a height of the second portion of the rotor member are determined based upon a volume of the first phase and a volume of the second phase respectively.
A method for measuring rheological parameters of a multi-phase fluid, the method comprising:
- providing a static chamber having a rotor member, wherein the rotor member comprises a first portion having a first set of threads formed thereon in a first direction and a second portion having a second set of threads formed thereon in a second direction that is opposite to the first direction;
- placing a multi-phase fluid having a first phase and a second phase within the static chamber such that the first portion and the second portion of the rotor member are substantially submersed in the first phase and the second phase of the multi-phase fluid respectively;
- and
- rotating the rotor member about a rotational axis to apply shear stress to the first phase and the second phase of the multi-phase fluid through the first set of threads and the second set of threads respectively,
- wherein the first phase of the multi-phase fluid is disposed above the second phase of the multi-phase fluid, and wherein the first set of threads is disposed above the second set of threads,
- and wherein a height of the first portion and a height of the second portion of the rotor member are determined based upon a volume of the first phase and a volume of the second phase respectively.
Dependencies are inferred from the claim text.