Fluid mobility modifiers for increased production in subterranean formations

Patent metadata

Field	Value
Publication number	US-9890316-B2
Application number	US-201414331601-A
Country	US
Kind code	B2
Filing date	Jul 15, 2014
Priority date	Sep 12, 2013
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

Embodiments including methods comprising providing a treatment fluid comprising a first aqueous base fluid and a polymeric gelling agent, wherein the treatment fluid comprises a first surface tension; introducing a fluid mobility modifier into the treatment fluid, wherein the fluid mobility modifier comprises: a first surfactant selected from the group consisting of a non-ionic surfactant; a cationic surfactant; and any combination thereof, and a solvent-surfactant blend comprising a second aqueous base fluid, a second surfactant, a solvent, and a co-solvent, wherein the ratio of the first surfactant to the solvent-surfactant blend is in the range of between about 1:5 to about 5:1, wherein the fluid mobility modifier causes the treatment fluid to adopt a second surface tension that is less than the first surface tension; and introducing the treatment fluid into a subterranean formation.

First claim

The invention claimed is:

1. A method comprising:
providing a treatment fluid comprising a first aqueous base fluid and a polymeric gelling agent selected from the group consisting of a derivatized guar gum, a cellulose derivative, xanthan, succinoglycan, alginate, chitosan, and any combination thereof,
wherein the treatment fluid comprises a first surface tension;
introducing a fluid mobility modifier into the treatment fluid,
wherein the fluid mobility modifier comprises:
a first surfactant selected from the group consisting of an ethoxylated oleate; a tall oil; a trimethylcocoammonium chloride; a trimethyltallowammonium chloride; a dimethyldicocoammonium chloride; a bis(2-hydroxyethyl)tallow amine; a bis(2-hydroxyethyl)erucylamine; a bis(2-hydroxyethyl)coco-amine; a cetylpyridinium chloride; and any combination thereof, and
a solvent-surfactant blend comprising a second aqueous base fluid, a second surfactant, a solvent, and a co-solvent,
wherein the second surfactant is selected from the group consisting of a polyoxyethylene sorbitan monopalmitate; a polyoxyethylene sorbitan monostearate; a polyoxyethylene sorbitan monooleate; a linear alcohol alkoxylate; a dodecyl benzene sulfonic acid; a sodium dodecyl benzene sulfonate; an alkoxylated nonyl-phenol; an ethoxylated castor oil; dipalmitoylphosphatidylcholine; a sodium 4-(1′ heptylnonyl)benzenesulfonate; a polyoxyethylene(8.6) nonyl-phenol ether; a sodium bis-2-ethylhexylsulphosuccinate; a tetraethyleneglycol dodecylether; a sodium octlylbenzenesulfonate; an alkyl propoxy-ethoxysulfate; an alkylarylpropoxy-ethoxysulfate; a highly substituted benzene sulfonate; and any combinations thereof,
wherein the solvent-surfactant blend is an oil-in-water emulsion,
wherein the ratio of the first surfactant to the solvent-surfactant blend is in the range of between about 1:5 to about 5:1,
wherein the fluid mobility modifier causes the treatment fluid to adopt a second surface tension that is less than the first surface tension, and wherein a combination of the fluid mobility modifier and the solvent-surfactant blend operate to reduce the emulsion tendency of the treatment fluid; and
introducing the treatment fluid into a subterranean formation.

2. The method of claim 1 , wherein the second surfactant has a hydrophile-lipophile balance in the range of between about 8 and about 18.

3. The method of claim 1 , wherein the solvent in the solvent is selected from the group consisting of a terpene; an alkyl ester; an aryl ester; a short chain alcohol; and any combination thereof.

4. The method of claim 1 , wherein the co-solvent is selected from the group consisting of t-butanol; n-butanol; n-pentanol; n-hexanol; 2-ethyl-hexanol; and any combination thereof.

5. The method of claim 1 , wherein the co-solvent is at least one of a primary alcohol, a secondary alcohol, and a tertiary alcohol having between 1 and 20 carbon atoms.

6. The method of claim 1 , wherein the second surfactant and solvent in the surfactant-solvent blend are present in a second surfactant:solvent ratio in the range of between about 2:1 to about 20:1.

7. The method of claim 1 , wherein the co-solvent and solvent in the surfactant-solvent blend are present in a co-solvent:solvent ratio in the range of between about 1:3 to about 3:1.

8. The method of claim 1 , wherein the treatment fluid further comprises an additive selected from the group consisting of a proppant particulate; a weighting agent; an inert solid; a fluid loss control agent; an emulsifier; a dispersion aid; a corrosion inhibitor; an emulsion thinner; an emulsion thickener; a breaker; a pH control agent; a lost circulation material; a foaming agent; a gas; a biocide; a scale inhibitor; a friction reducer; a clay stabilizing agent; and any combination thereof.

9. A method comprising:
providing a treatment fluid comprising a first aqueous base fluid and a polymeric gelling agent selected from the group consisting of a derivatized guar gum, a cellulose derivative, xanthan, succinoglycan, alginate, chitosan, and any combination thereof,
wherein the treatment fluid comprises a first surface tension;
introducing a fluid mobility modifier into the treatment fluid,
wherein the fluid mobility modifier comprises:
a first surfactant selected from the group consisting of an ethoxylated oleate; a tall oil; a trimethylcocoammonium chloride; a trimethyltallowammonium chloride; a dimethyldicocoammonium chloride; a bis(2-hydroxyethyl)tallow amine; a bis(2-hydroxyethyl)erucylamine; a bis(2-hydroxyethyl)coco-amine; a cetylpyridinium chloride; and any combination thereof, and
a solvent-surfactant blend comprising a second aqueous base fluid, a second surfactant, a solvent, and a co-solvent,
wherein the second surfactant is selected from the group consisting of a polyoxyethylene sorbitan monopalmitate; a polyoxyethylene sorbitan monostearate; a polyoxyethylene sorbitan monooleate; a linear alcohol alkoxylate; a dodecyl benzene sulfonic acid; a sodium dodecyl benzene sulfonate; an alkoxylated nonyl-phenol; an ethoxylated castor oil; dipalmitoylphosphatidylcholine; a sodium 4-(1′ heptylnonyl)benzenesulfonate; a polyoxyethylene(8.6) nonyl-phenol ether; a sodium bis-2-ethylhexylsulphosuccinate; a tetraethyleneglycol dodecylether; a sodium octlylbenzenesulfonate; an alkyl propoxy-ethoxysulfate; an alkylarylpropoxy-ethoxysulfate; a highly substituted benzene sulfonate; and any combinations thereof,
wherein the solvent-surfactant blend is an oil-in-water emulsion,
wherein the ratio of the first surfactant to the solvent-surfactant blend is in the range of between about 1:5 to about 5:1,
wherein the ratio of the second surfactant to the solvent in the solvent-surfactant blend is in the range of about 2:1 to about 20:1,
wherein the fluid mobility modifier causes the treatment fluid to adopt a second surface tension that is less than the first surface tension, and, and wherein a combination of the fluid mobility modifier and the solvent-surfactant blend operate to reduce the emulsion tendency of the treatment fluid; and
introducing the treatment fluid into a subterranean formation.

10. The method of claim 9 , wherein the second surfactant has a hydrophile-lipophile balance in the range of between about 8 and about 18.

11. The method of claim 9 , wherein the solvent in the solvent is selected from the group consisting of a terpene; an alkyl ester; an aryl ester; a short chain alcohol; and any combination thereof.

12. The method of claim 9 , wherein the co-solvent is selected from the group consisting of t-butanol; n-butanol; n-pentanol; n-hexanol; 2-ethyl-hexanol; and any combination thereof.

13. The method of claim 9 , wherein the co-solvent is at least one of a primary alcohol, a secondary alcohol, and a tertiary alcohol having between 1 and 20 carbon atoms.

14. The method of claim 9 , wherein the co-solvent and solvent in the surfactant-solvent blend are present in a co-solvent:solvent ratio in the range of between about 1:3 to about 3:1.

15. A system comprising:
a wellhead with a tubular extending therefrom and into a wellbore in a subterranean formation; and
a pump fluidly coupled to the tubular, the tubular containing a treatment fluid comprising a first aqueous base fluid, a polymeric gelling agent selected from the group consisting of a derivatized guar gum, a cellulose derivative, xanthan, succinoglycan, alginate, chitosan, and any combination thereof, and a fluid mobility modifier,
the fluid mobility modifier comprising:
a first surfactant selected from the group consisting of an ethoxylated oleate; a tall oil; a trimethylcocoammonium chloride; a trim

Assignees

• Halliburton Energy Services Inc

Inventors

• Welton Thomas Donovan
• Penny Glenn S
• Holtsclaw Jeremy
• Singh Dipti
• Weston Melissa C
• Schultheiss Nathan

Classifications

• C09K8/68

  containing organic compounds · CPC title

• C09K8/528

  inorganic depositions, e.g. sulfates or carbonates · CPC title

• C09K8/605

  containing biocides · CPC title

• C09K8/90

  of natural origin, e.g. polysaccharides, cellulose · CPC title

• C09K2208/12

  Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating · CPC title