The makeup of typical hydraulic fracturing fluid is:
- water - 99.2%
- other - 0.79%
water | expand fracture and deliver sand |
sand | allows gas to escape |
acid | used to dissolve minerals and create cracks |
corrosive inhibitor | prevents pipe corrosion |
friction reducer | minimize friction |
clay control | creates a brine carrier fluid |
cross linker | stabilizes fluid viscosity as temperature increases |
scale inhibitor | prevents scale on pipes |
breaker | delays gel break down |
iron control | prevents precipitation of metal oxides |
biocide | kills bacteria which produces corrosive by-products |
gellant | thickens water in order to suspend the sand |