Apparatus and test method for treatment fluid selection

A crude oil displacement method comprising:

• partially filling a vessel with a treatment fluid;
• positioning an oil-saturated sample within the treatment fluid;
• adding a solvent system to the vessel above the treatment fluid;
• moving oil from the oil-saturated sample into the solvent system;
• and
• measuring a color difference between the displaced oil and a standard color to determine the amount of displaced oil.

A crude oil displacement method comprising:

• a) partially filling a vessel with treatment fluid;
• b) positioning an oil-saturated sample within the treatment fluid;
• c) adding a solvent system to the vessel above the treatment fluid;
• d) moving oil from the oil-saturated sample into the solvent system;
• e) photographing the displaced oil;
• using a color picker application or color detections software to obtain R, G, B, L, a, b, L, C, H, H, S, B, reflectance, transmittance or wavelength values from the photograph;
• and
• comparing the values of R, G, B, L, a, b, L, C, H, H, S, B, reflectance, transmittance or wavelength against a calibration curve or correlation to obtain displaced oil concentration.

A crude oil displacement measurement apparatus comprising:

• a base, the base including a plurality of rows of vial receptors, the vial receptors adapted to receive vials;
• a dispenser robotic arm, the dispenser robotic arm extending across the base parallel with the row of vial receptors, the dispenser robotic arm adapted to move transversely across the rows of vial receptors;
• a plurality of automated dispensers positioned on the dispenser robotic arm;
• a placement robotic arm, the placement robotic arm adapted to move transversely across the rows of vial receptors and along the rows of vial receptors, the placement robotic arm comprising:
• an elevating arm;
• a rotating arm extending at an angle from the elevating arm;
• a gripper, the gripper mechanically connected to the rotating arm, the gripper adapted to grip a vial;
• a color device;
• and
• a color device robotic arm, the color device robotic arm mechanically connected to the color device, the color device robotic arm adapted to move across a row of vial receptors.