Rheology modifier comprising a tetrakis(hydroxyalkyl) phosphonium salt for polymer fluids
Embodiments of this invention relate to a composition and a method for tailoring the rheology of a fluid for use in the oil field services industry including forming a fluid comprising a tetrakis(hydroxyalkyl) phosphonium salt and a polymer, and exposing the fluid to a temperature of about 20° C. to about 200° C., wherein a viscosity is observed that is at least about 5 percent different than if no salt were present. Embodiments of this invention also relate to a composition and a method for tailoring the rheology of a fluid for use in the oil field services industry including forming a fluid comprising a tetrakis(hydroxyalkyl) phosphonium salt and diutan and/or guar and/or guar derivatives and/or a combination thereof, and exposing the fluid to a temperature of about 20° C. to about 163° C., wherein a viscosity is observed that is at least about 5 percent lower than if no salt were present. Embodiments of this invention also relate to a composition and a method for tailoring the rheology of a fluid for use in the oil field services industry including forming a fluid comprising a tetrakis(hydroxyalkyl) phosphonium salt and xanthan, and exposing the fluid to a temperature of about 20° C. to about 200° C., wherein a viscosity is observed that is at least about 5 percent higher than if no salt were present.
1. A method for tailoring the rheology of a fluid for use in the oil field services industry, comprising:
forming a fluid comprising a tetrakis(hydroxyalkyl) phosphonium salt and a polymer, wherein the concentration of salt in the fluid is about 0.001 weight percent to about 10.00 weight percent; and
exposing the fluid to a temperature of about 20° C. to about 200° C.;
wherein a viscosity is observed that is at least about 5 percent different than if no salt were present.
2. The method of claim 1 , wherein the polymer is diutan and/or derivatives of diutan and/or combinations thereof and the observed viscosity is reduced.
3. The method of claim 2 , wherein the viscosity reduction is tailored by increasing the concentration of salt.
4. The method of claim 1 , wherein the polymer is guar and/or derivatives of guar and/or combinations thereof and the observed viscosity is reduced.
5. The method of claim 4 , wherein the viscosity reduction is tailored by increasing the concentration of salt.
6. The method of claim 1 , wherein the polymer is xanthan and/or derivatives of xanthan and/or combinations thereof and the observed viscosity is increased.
7. The method of claim 6 , wherein the viscosity increase is tailored by increasing the concentration of salt.
8. The method of claim 6 , wherein the fluid further comprises dipropylene glycol methyl ether or ethylene glycol monobutyl ether or a combination thereof.
9. The method of claim 1 , wherein the exposing the fluid to a temperature occurs for at least about 5 minutes.
10. The method of claim 1 , wherein the observed viscosity is about 20 cP to about 200 cP.
11. The method of claim 1 , wherein the tetrakis(hydroxyalkyl) phosphonium salt is tetrakis(hydroxymethyl) phosphonium sulfate, tetrakishydroxymethyl phosphonium chloride, or a combination thereof.
12. The method of claim 1 , wherein the polymer is diutan, guar, xantham, derivatives thereof, and/or combinations thereof.
13. The method of claim 1 , wherein the fluid further comprises a clay stabilizer.
14. A method for tailoring the rheology of a fluid for use in the oil field services industry, comprising:
forming a fluid comprising a tetrakis(hydroxyalkyl) phosphonium salt and diutan and/or guar and/or guar derivatives and/or a combination thereof, wherein the concentration of salt in the fluid is about 0.001 weight percent to about 10.00 weight percent; and
exposing the fluid to a temperature of about 20° C. to about 200° C.;
wherein a viscosity is observed that is at least about 5 percent lower than if no salt were present.
15. The method of claim 14 , wherein the viscosity reduction is tailored by increasing the concentration of salt.
16. The method of claim 14 , wherein the observed viscosity is about 20 cP to about 200 cP.
17. The method of claim 14 , wherein the tetrakis(hydroxyalkyl) phosphonium salt is tetrakis(hydroxymethyl) phosphonium sulfate, tetrakishydroxymethyl phosphonium chloride, or a combination thereof.
18. A method for tailoring the rheology of a fluid for use in the oil field services industry, comprising:
forming a fluid comprising a tetrakis(hydroxyalkyl) phosphonium salt and xanthan, wherein the concentration of salt in the fluid is about 0.001 eight percent to about 10.00 weight percent and
exposing the fluid to a temperature of about 20° C. to about 200° C.;
wherein a viscosity is observed that is at least about 5 percent higher than if no salt were present.
19. The method of claim 18 , wherein the observed viscosity is about 20 cP to about 200 cP.
20. The method of claim 18 , wherein the tetrakis(hydroxyalkyl) phosphonium salt is tetrakis(hydroxymethyl) phosphonium sulfate, tetrakishydroxymethyl phosphonium chloride, or a combination thereof.
21. The method of claim 18 , wherein the fluid further comprises dipropylene glycol methyl ether or ethylene glycol monobutyl ether or a combination thereof.
22. The method of claim 18 , wherein the fluid further comprises a clay stabilizer.