System and method to quantify fluid additives

Abstract

A fluid is provided. The fluid includes a base fluid and an additive. The additive has a marker functional group that absorbs infrared radiation having a wavelength in a predetermined range between about 2100 cm −1 and about 2300 cm −1 .

What is claimed is: 
     
         1 . A wellbore servicing fluid comprising:
 a base fluid; and   an additive having a marker functional group that absorbs infrared radiation having a wavelength in a predetermined range between about 2100 cm −1  and about 2300 cm −1 .   
     
     
         2 . The fluid of  claim 1 , wherein a concentration of the additive ranges from about 0.1% to about 10% by volume. 
     
     
         3 . The fluid of  claim 1 , wherein the marker functional group comprises a triple bond. 
     
     
         4 . The fluid of  claim 1 , wherein the additive has a main chain comprising repeating units of a substituted or unsubstituted C1 to C10 alkane or C1 to C10 alkene, and the marker functional group has a triple bond. 
     
     
         5 . The fluid of  claim 1 , wherein the additive has a molecular weight of less than 10,000 g/mol. 
     
     
         6 . The fluid of  claim 1 , wherein the marker functional group comprises a carbon to carbon triple bond. 
     
     
         7 . The fluid of  claim 1 , wherein the marker functional group comprises a carbon to heteroatom triple bond. 
     
     
         8 . The fluid of  claim 1 , wherein the marker functional group comprises an alkyne. 
     
     
         9 . The fluid of  claim 1 , wherein the marker functional group comprises a nitrile. 
     
     
         10 . A system comprising:
 a wellbore servicing fluid comprising an additive, the additive having a marker functional group that absorbs infrared radiation having a wavelength in a predetermined range between about 2100 cm −1  and about 2300 cm −1 ; and   a sensor operable to measure absorption of infrared radiation by the fluid.   
     
     
         11 . The system of  claim 10 , further comprising:
 a controller coupled with the sensor, the controller is operable to determine a concentration of the additive in the fluid based on the absorption of infrared radiation by the additive in the predetermined range   
     
     
         12 . The system of  claim 10 , wherein the sensor includes an infrared spectrometer. 
     
     
         13 . The system of  claim 10 , wherein the additive has a main chain comprising repeating units of a substituted or unsubstituted C1 to C10 alkane or C1 to C10 alkene, and the marker functional group has a triple bond. 
     
     
         14 . The system of  claim 10 , wherein the additive has a molecular weight of less than 10,000 g/mol. 
     
     
         15 . The system of  claim 10 , wherein the marker functional group comprises a carbon to carbon or carbon to heteroatom triple bond. 
     
     
         16 . The system of  claim 10 , wherein the marker functional group comprises an alkyne. 
     
     
         17 . The system of  claim 10 , wherein the marker functional group comprises a nitrile. 
     
     
         18 . A method comprising:
 measuring, by a sensor, absorption of infrared radiation by a fluid; and   determining, by a controller, a concentration of an additive in the fluid based on absorption of the infrared radiation by a marker functional group of the additive having a wavelength in a predetermined range between about 2100 cm −1  and about 2300 cm −1 .   
     
     
         19 . The method of  claim 18 , further comprising:
 determining whether the concentration of the additive is within a predetermined range; and   adjusting, when the additive is outside of the predetermined range, the fluid such that the additive is within the predetermined range.   
     
     
         20 . The method of  claim 18 , wherein the fluid includes one or more additional additives, each of the additional additives absorbing infrared radiation in additional predetermined ranges between about 2100 cm −1  to about 2300 cm −1 , wherein the method further comprises:
 determining, by the controller, the concentration of each of the additional additives and the additive based on the absorption of infrared radiation by the additive and the additional additives.