Method to hydraulically fracture a well

1. A method comprising:

providing a historical database comprising a total dissolved solids (TDS) concentration, density, and an ion concentration of a plurality of water sources over time;

providing a sample of water taken from a water source selected from the plurality of water sources;

measuring a density of the sample of water;

correlating the density of the sample of water to the TDS concentration of the plurality of water sources;

referencing the historical database to correlate the TDS concentration of the plurality of water sources to the ion concentration of the plurality of water sources;

selecting at least one friction reducing polymer for a hydraulic fracturing operation based at least in part on the ion concentration; and

introducing a fracturing fluid comprising the selected at least one friction reducing polymer into a wellbore.

2. The method of claim 1 , wherein the step of measuring further comprises measuring a property selected from conductivity, reflected radiation, emitted radiation, or a combination thereof of the sample of water, and further correlating the property of the sample of water to the TDS concentration of the plurality of water sources.

3. The method of claim 1 , wherein the historical database comprises a trend of TDS concentration to ion concentration.

4. The method of claim 1 , wherein the ion concentration is a concentration of at least one Group(I) ion, at least one Group(II) ion, at least one metal ion, or a combination thereof.

5. The method of claim 1 , wherein the step of selecting at least one friction reducing polymer comprises using the historical database and correlating the ion concentration to friction reducing polymers that reduce friction at the ion concentration.

6. The method of claim 1 , further comprising adding the selected at least one friction reducing polymer to a hydraulic fracturing fluid comprising water from the water source.

7. The method of claim 1 , further comprising measuring a conductivity of the sample of water to determine the TDS concentration, wherein the step of correlating comprises correlating the TDS concentration using the historical database, the historical database comprising a trend of TDS concentration to ion concentration, and wherein the method further comprises adding the selected at least one friction reducing polymer to a hydraulic fracturing fluid comprising water from the water source.

8. The method of claim 1 , wherein the selecting at least one friction reducing polymer is automatic.

9. The method of claim 1 , wherein the selecting at least one friction reducing polymer is manually done by a user.

10. A method comprising:

measuring a density of a water source of a wellbore and correlating the density of the water source to a cation concentration of the water source based at least in part on a historical database comprising a total dissolved solids (TDS) concentration, density, and a cation concentration of a plurality of water sources of hydraulic fracturing operations over time;

selecting at least one friction reducing polymer based at least in part on the cation concentration of the water source; and

introducing the selected at least one friction reducing polymer and water from the water source into a flow loop.

11. The method of claim 10 , wherein the step of measuring further comprises measuring a property selected from conductivity, reflected radiation, emitted radiation, or a combination thereof of the water source and correlating the measured property to a cation concentration of the water source.

12. The method of claim 10 , wherein the historical database comprises a trend of density to cation concentration.

13. The method of claim 10 , wherein the step of selecting at least one friction reducing polymer comprises using the historical database and correlating the cation concentration to friction reducing polymers that reduce friction at the cation concentration.

14. The method of claim 10 , further comprising adding the selected at least one friction reducing polymer to a hydraulic fracturing fluid comprising water from the water source.