Traced chemicals and method to verify and control formulation composition
Methods and apparatus to control the additives to a chemical composition for use in the oil field services industry. Specifically, a method and apparatus to determine fluid parameters for a fluid, including introducing an inert tracer in a component; forming a fluid comprising the component; observing the concentration of the tracer in the fluid; calculating the concentration of the component in the fluid; and introducing the fluid into a subterranean formation. An apparatus and method to control fluid parameters of interest for an oilfield formulation fluid such as chemical composition including introducing an inert tracer in a component; forming a fluid comprising the component; observing the concentration of the tracer in the fluid; calculating the concentration of the component in the fluid; adjusting a flow rate when forming the fluid in response to the calculating; and introducing the fluid into a subterranean formation.
1. A method to control fluid parameters for a fluid, comprising:
introducing a tracer in a component;
forming a fluid comprising the component that contains the tracer;
determining a concentration of the tracer in the fluid online;
estimating a concentration of the component in the fluid based on the online determination of the concentration of the tracer in the fluid;
introducing the fluid into the subterranean formation at a flow rate; and
adjusting the flow rate of the fluid into the subterranean formation based on the estimated concentration of the component in the fluid.
2. The method of claim 1 , further comprising adjusting a concentration of the component based on the online determination of the concentration of the tracer in the fluid.
3. The method of claim 1 , further comprising adjusting an addition rate of the component based on the online determination of the concentration of the tracer in the fluid.
4. The method of claim 3 , wherein the adjusting the addition rate of the component comprises sending a signal to a pump.
5. The method of claim 3 , wherein the adjusting the addition rate of the component comprises changing a flow rate of the component.
6. The method of claim 1 , further comprising introducing a second tracer in a second component and wherein the fluid further comprises the second component.
7. The method of claim 1 , wherein the tracer comprises organic molecules that can be quantified by liquid or gas chromatography.
8. The method of claim 1 , wherein the tracer comprises organic molecules that can be detected by chromatography detectors.
9. The method of claim 1 , wherein the tracer comprises organic molecules that can be detected by UV or visible spectroscopy.
10. The method of claim 1 , wherein the tracer comprises at least one chromophore group.
11. The method of claim 1 , wherein the tracer comprises at least one UV-VIS absorbing chromophore.
12. The method of claim 1 , wherein the tracer comprises dye.
13. The method of claim 1 , wherein the tracer comprises a component comprising one of a charge, isotope mass, or radioactive activity.
14. A method to control a fluid chemical composition, comprising:
introducing an inert tracer in a component;
forming a fluid comprising the component that contains the tracer;
determining a concentration of the tracer in the fluid online;
estimating a concentration of the component in the fluid based on the online determination of the concentration of the tracer in the fluid;
adjusting an addition rate of the component during the forming in response to the estimating; and
introducing the fluid into a subterranean formation.
15. The method of claim 14 , wherein the estimating further comprises comparing the estimated concentration to a target concentration.
16. The method of claim 14 , wherein the adjusting the addition rate of the component comprises sending a signal to a pump, screw feeder, shaker feeder and/or control valve.
17. The method of claim 14 , wherein the adjusting the addition rate of the component comprises changing a flow rate of the component.
18. The method of claim 14 , further comprising introducing a second tracer in a second component and wherein the fluid further comprises the second component.
19. The method of claim 14 , wherein the tracer comprises organic molecules that can be quantified by liquid or gas chromatography.
20. The method of claim 14 , wherein the tracer comprises organic molecules that can be detected by chromatography detectors.
21. The method of claim 14 , wherein the tracer comprises organic molecules that can be detected by UV or visible spectroscopy.