A system and method of testing pre-formed particle gels in an artificial fracture system includes introducing a suspension including a pre-formed particle gel into a testing device that includes an artificial fracture setup with a plurality of fracture model units. The system is configured to inject pre-formed particle gels into an accumulator with magnetic stirrers first and then into a series of fracture model units configured to receive a fluid through a flow channel and, change the flow channel in a transverse direction relative to the direction of the fluid flow.

Single unit devices for viscosity and light scattering, and methods for the same are disclosed. The single unit device may include an inlet line, first and second fluid flow lines in fluid communication with the inlet line, a light scattering detector (LSD), a pressure transducer line, a pressure transducer disposed fluidly coupled with the pressure transducer line, and an exit stream. The first fluid flow line may include first and second capillaries and a first tee connector interposed between the first and second capillaries. The second fluid flow line may include first and second capillaries and a second tee connector interposed between the first and second capillaries. The LSD may be disposed downstream the second tee connector and upstream the second capillary of the second fluid flow line. The exit stream may be in fluid communication with the respective second capillaries of the first and second fluid flow lines.

Single unit devices for viscosity and light scattering, and methods for the same are disclosed. The single unit device may include an inlet line, first and second fluid flow lines in fluid communication with the inlet line, a light scattering detector (LSD), a pressure transducer line, a pressure transducer disposed fluidly coupled with the pressure transducer line, and an exit stream. The first fluid flow line may include first and second capillaries and a first tee connector interposed between the first and second capillaries. The second fluid flow line may include first and second capillaries and a second tee connector interposed between the first and second capillaries. The LSD may be disposed downstream the second tee connector and upstream the second capillary of the second fluid flow line. The exit stream may be in fluid communication with the respective second capillaries of the first and second fluid flow lines.

A fluid sampling tool may include a fluid characterization device consisting of a densitometer, a viscometer, or a vibrating element, or a combination thereof and a polymer disposed in or around the fluid characterization device, wherein the polymer volume, density, or viscosity changes with an ionic stimulus. The fluid characterization device may be located within a bypass flow line of the sampling tool. A method of measuring pH and a method of monitoring at least two analytes at the same time using the fluid characterization devices are also discussed.

A fluid sampling tool may include a fluid characterization device consisting of a densitometer, a viscometer, or a vibrating element, or a combination thereof and a polymer disposed in or around the fluid characterization device, wherein the polymer volume, density, or viscosity changes with an ionic stimulus. The fluid characterization device may be located within a bypass flow line of the sampling tool. A method of measuring pH and a method of monitoring at least two analytes at the same time using the fluid characterization devices are also discussed.

The present disclosure describes a computer implemented method, a system, and a computer program product of determining intrinsic viscosity and Huggins constant of an unknown sample. In an embodiment, the method, system, and computer program product include, receiving specific viscosity values over time from a viscometer corresponding to a series of aliquots of an unknown sample injected into an instrument chain where the instrument chain includes the viscometer, calculating a total mass of each of the aliquots, calculating a first intermediate viscosity value of each of the aliquots, calculating a second intermediate viscosity value of each of the aliquots, and fitting the total mass, the first intermediate viscosity value, and the second intermediate viscosity value to a fitting, resulting in a calculated intrinsic viscosity of the unknown sample and a calculated Huggins constant of the unknown sample.

The present disclosure describes a computer implemented method, a system, and a computer program product of determining intrinsic viscosity and Huggins constant of an unknown sample. In an embodiment, the method, system, and computer program product include, receiving specific viscosity values over time from a viscometer corresponding to a series of aliquots of an unknown sample injected into an instrument chain where the instrument chain includes the viscometer, calculating a total mass of each of the aliquots, calculating a first intermediate viscosity value of each of the aliquots, calculating a second intermediate viscosity value of each of the aliquots, and fitting the total mass, the first intermediate viscosity value, and the second intermediate viscosity value to a fitting, resulting in a calculated intrinsic viscosity of the unknown sample and a calculated Huggins constant of the unknown sample.

Rheological measurement systems for use with systems including pressurized polymer melts and/or other viscous materials are described. In one embodiment, a rheometer is connected to an associated system with a bent, curved, or bendable tube to permit the rheometer to measure rheological properties in locations where the rheometer could not otherwise be located due to the presence of obstructions. Embodiments including rigid straight tubes for connecting a rheometer to an associated system are also described. In another embodiment, a flow-through rheometer is connected to an industry standard -20 thermowell aperture that is typically used for attaching temperature and pressure probes to a vessel containing a viscous material such as an extruder or injection molding system.

Rheological measurement systems for use with systems including pressurized polymer melts and/or other viscous materials are described. In one embodiment, a rheometer is connected to an associated system with a bent, curved, or bendable tube to permit the rheometer to measure rheological properties in locations where the rheometer could not otherwise be located due to the presence of obstructions. Embodiments including rigid straight tubes for connecting a rheometer to an associated system are also described. In another embodiment, a flow-through rheometer is connected to an industry standard -20 thermowell aperture that is typically used for attaching temperature and pressure probes to a vessel containing a viscous material such as an extruder or injection molding system.

Apparatuses and methods designed to allow for on-site, on-demand measurement of rheological properties of a sample are disclosed. The apparatuses and methods utilize both a visual component (e.g., a camera) to obtain information about the sample for making such rheological property determinations and an integrated electrical circuit to apply a current to the sample for also making such rheological property determinations. The application of the current is done in a manner such that a thinning behavior of the sample is unaffected. Further, the apparatuses are configured in a manner that allow them to be portable so that samples can be analyzed shortly after they are received, at a point-of-use. Various configurations and methods associated with such apparatuses are also disclosed.