System and method for measuring properties of a fluid

A system for determining a profile of a first fluid, comprising:

• a device comprising:
• a housing having a bore formed axially therethrough, wherein a lower end of the housing includes a stop that protrudes radially inward, and wherein the bore extends through the stop;
• a lower piston positioned in the bore, wherein the lower piston is configured to move axially within the bore in response to a pressure differential across the lower piston, wherein the lower piston is prevented from passing out through the lower end of the housing by the stop, and wherein the lower piston has a lower piston hole formed therethrough;
• and
• an upper piston positioned in the bore, wherein the upper piston is configured to move axially within the bore in response to a pressure differential across the upper piston, wherein the upper piston has an upper piston hole formed therethrough, and wherein the device is configured to receive the first fluid in the bore, between the upper and lower pistons;
• and
• a first vessel configured to receive the device therein, wherein a temperature and a pressure of the first fluid in the device are configured to be increased while the device is positioned within the first vessel.

A method for determining a profile of a first fluid, comprising:

• aging the first fluid, wherein aging the first fluid comprises:
• introducing the first fluid into a device;
• and
• introducing the device, with the first fluid therein, into a first vessel;
• heating the first fluid to a predetermined temperature within the first vessel;
• and
• pressurizing the first fluid to a predetermined pressure within the first vessel;
• and
• performing a first test on the first fluid after the first fluid is aged, wherein the first test is performed on the first fluid while the first fluid is in the device.