US RE44,943 E1 · Fluid properties evaluation

Abstract

Fluid flow properties often dictate the performance of processing operations. The present invention relates to a system for evaluating properties of a fluid flowing in a pipe. A test cell (20) which includes two parallel surfaces (5, 6) which are positioned in the flow. One of the surfaces is moveable relative to the other, to a position in close proximity to the other, to create a stagnant flow region between the surfaces. The system further includes a test input device (10) to apply input motion to one of the surfaces, and a test output device (13) to measure output motions from the cell in response to input motions. Furthermore, the system includes a processing device (9) to calculate rheological parameters of the fluid from signals produced from the test input and test output device. There is also a process for evaluating properties of a flowing fluid.

Claims27

Dependent claims

A system for evaluating properties of a flowing fluid comprising:

a section of pipe through which the fluid flows;
a test cell positioned in the pipe and presenting two parallel surfaces in line
with the flow, one of which is moveable relative to the other, to a position in close proximity to the other, to create a stagnant flow region between the surfaces,;
a test input means to apply input motions to one of the surfaces;
a test output means to measure output motions from the cell in response to the input motions;
and
processing means to calculate rheological parameters of the fluid from signals produced from the test input and test output means;
wherein the input motions are substantially perpendicular to the surfaces.

5 more elements

Dependencies are inferred from the claim text.

Fluid properties evaluation

Life of this patent

Fluid properties evaluation

Life of this patent

Abstract

Claims27