Friction reducers, fracturing fluid compositions and uses thereof
Friction reducers, fracturing fluid compositions and methods for treating subterranean formations, wherein friction reducer is a reacted, grafted or blend of natural gum and polyacrylamide having a molecular weight between 300,000 and 30,000,000.
1. A friction reducer comprising a reacted, grafted or blend of a nonionic natural gum and a synthetic partially hydrolyzed polyacrylamide (PHPA) having a molecular weight between 300,000 and 30,000,000, wherein the PHPA and/or natural gum has an average particle size of 150 μm or less, wherein the friction reducer further comprises copolymers of acrylamides and acrylic acids, wherein the ratio of the natural gum and the synthetic PHPA is from about 5:1 to about 1:0.01 by weight relative to the friction reducer.
2. The friction reducer of claim 1 , wherein the natural gum is a galactomannan gum.
3. The friction reducer of claim 2 , wherein the galactomannan gum is guar gum.
4. The friction reducer of claim 1 , wherein the nonionic natural gum is selected from the group consisting of either a guar gum or a combination of gums.
5. The friction reducer of claim 1 , wherein the friction reducer further comprises a cellulose polymer.
6. The friction reducer of claim 1 , wherein the friction reducer further comprises a starch polymer.
7. The friction reducer of claim 1 , wherein the friction reducer further comprises acrylic acids.
8. The friction reducer of claim 1 , wherein the friction reducer further comprises a combination of one or more of a starch polymer and a cellulose polymer.
9. The friction reducer of claim 1 , wherein the friction reducer is crosslinkable.
10. The friction reducer of claim 1 , wherein the friction reducer is biodegradable.
11. The friction reducer of claim 1 , wherein the friction reducer is breakable into small particles with strong oxidizers.
12. The friction reducer according to claim 1 further comprising an aqueous base fluid.
13. The friction reducer of claim 12 , wherein the concentration of the friction reducer is about 0.1% or less by weight of the aqueous base fluid.
14. The friction reducer of claim 12 , wherein the aqueous base fluid is fresh water 99.9 weight percent of the total weight of the aqueous base fluid.
15. The friction reducer of claim 12 , wherein the aqueous base fluid is a brine comprising one or more dissolved inorganic salts in a total concentration between 0.1 and 20 weight percent of the total weight of the aqueous base fluid.
16. The friction reducer of claim 15 , wherein inorganic salt comprises one or more monovalent or divalent or trivalent cations.
17. The friction reducer of claim 16 , where the trivalent cations comprise iron and boron cations.
18. The friction reducer of claim 16 , where the divalent cations comprise calcium, magnesium, iron and strontium cations.
19. The friction reducer of claim 16 , where the monovalent cations comprise of sodium and potassium cations.
20. The friction reducer of claim 15 , wherein the inorganic salt comprises one or more monovalent or divalent anions.
21. The friction reducer of claim 20 , wherein the monovalent anions comprise of chlorides and bicarbonates.
22. The friction reducer of claim 20 , wherein the divalent anions comprise of sulfates, sulfides, carbonate and oxides.
23. The friction reducer of claim 12 , wherein at least a portion of the aqueous base fluid is flowback water.
24. The friction reducer of claim 12 , wherein the aqueous base fluid comprises fresh fracturing fluid, recycled fracturing fluid, flowback fracturing fluid or back-produced fracturing fluid, or combinations thereof.
25. The friction reducer of claim 1 , wherein the friction reducer is used for carrying proppants wherein the proppants have a size range of from 20 mesh to 100 mesh.