Wellbore Servicing Compositions and Methods of Making and Using Same

• US 20140113843A1
• Filed: 10/22/2012
• Published: 04/24/2014
• Est. Priority Date: 10/22/2012
• Status: Active Grant

• Current Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Original Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Inventors: SHUMWAY, William Walter
• Granted Patent: US 9,890,321 B2
• Time in Patent Office: Days
• US Class Current: 507/261
• CPC Class Codes: C09K 8/524 organic depositions, e.g. paraffins or asphaltenes
• CPC Class Codes: C09K 8/74 combined with additives added for specific purposes

Abstract

A method of servicing a wellbore in a subterranean formation comprising placing a composition comprising an acid and/or an acid precursor, a surfactant, and an aqueous base fluid into contact with oil-wet solids in the wellbore; wherein the acid and/or acid precursor is selected from the group consisting of acetic acid; lactic acid; glycolic acid; oxalic acid; propionic acid; butyric acid; monochloroacetic acid; dichloroacetic acid; trichloroacetic acid; hydrochloric acid; nitric acid; sulphuric acid; sulphonic acid; sulphinic acid; phosphoric acid; phosphorous acid; phosphonic acid; phosphinic acid; sulphamic acid; aliphatic polyesters; glucono-delta-lactone; glucoheptonic lactone; poly(ε-caprolactones); poly(hydroxybutyrates); poly(anhydrides); aliphatic polycarbonates; poly(amino acids); polyphosphazenes; poly(ortho esters); or combinations thereof.

Claims

1. A method of servicing a wellbore in a subterranean formation comprising:

placing a composition comprising an acid and/or an acid precursor, a surfactant, and an aqueous base fluid into contact with oil-wet solids in the wellbore wherein the composition excludes a mutual solvent precursor; and

shutting-in the wellbore in a substantially static state for at least 1 hour;

wherein the acid and/or acid precursor is selected from the group consisting of acetic acid;

lactic acid;

glycolic acid;

oxalic acid;

propionic acid;

butyric acid;

monochloroacetic acid;

dichloroacetic acid;

trichloroacetic acid;

hydrochloric acid;

nitric acid;

sulphuric acid;

sulphonic acid;

sulphinic acid;

phosphoric acid;

phosphorous acid;

phosphonic acid;

phosphinic acid;

sulphamic acid;

aliphatic polyesters;

glucono-delta-lactone;

glucoheptonic lactone;

poly(ε

-caprolactones);

poly(hydroxybutyrates);

poly(anhydrides);

aliphatic polycarbonates;

poly(amino acids);

polyphosphazenes;

poly(ortho esters); and

combinations thereof; and

wherein the surfactant comprises anionic surfactants, amphoteric/zwitterionic surfactants, linear alcohols, nonylphenol compounds, alkyoxylated fatty acids, alkylphenol alkoxylates, ethoxylated amides, ethoxylated alkyl amines, betaines, methyl ester sulfonates, hydrolyzed keratin, sulfosuccinates, taurates, amine oxides, alkoxylated fatty acids, alkoxylated alcohols, lauryl alcohol ethoxylate, ethoxylated nonyl phenol, ethoxylated fatty amines, ethoxylated alkyl amines, cocoalkylamine ethoxylate, betaines, modified betaines, alkylamidobetaine;

cocoamidopropyl betaine, quaternary ammonium compounds, trimethyltallowammonium chloride, trimethylcocoammonium chloride, or combinations thereof.

2. The method of claim 1 wherein the acid precursor comprises polyol esters.

3. The method of claim 2 wherein the polyols comprise glycerol, glycols, or combinations thereof.

4. The method of claim 2 wherein the polyols esters comprise tripropionin (a triester of propionic acid and glycerol);

esters of acetic acid and glycerol;

monoacetin;

diacetin;

triacetin;

glyceryl diacetate;

glyceryl triacetate;

or combinations thereof.

5. The method of claim 1 wherein the acid and/or acid precursor comprises methyl lactate, ethyl lactate, propyl lactate, butyl lactate, methyl acetate, ethyl acetate, propyl acetate, butyl acetate, methyl glycolate, ethyl glycolate, propyl glycolate, butyl glycolate, trilactin, polylactic acid, poly(lactides), poly(glycolides), or combinations thereof.

6. The method of claim 1 wherein the acid and/or acid precursor is present in the composition in an amount of from about 2.5 wt. % to about 50 wt. % based on the total weight of the composition.

7. The method of claim 1 wherein the surfactant further comprises ethoxylated nonyl phenol phosphate esters, nonionic surfactants, cationic surfactants, alkyl phosphonate surfactants, or combinations thereof.

8. The method of claim 1 wherein the surfactant is present in the composition in an amount of from about 0.1 wt. % to about 5 wt. %, based on the total weight of the composition.

9. The method of claim 1 wherein the aqueous base fluid comprises a brine.

10. The method of claim 9 wherein the brine comprises NaCl, NaBr, CaCl₂, CaBr₂, ZnBr₂, sodium formate, potassium formate, cesium formate, or combinations thereof.

11. The method of claim 9 wherein the brine is present in the composition in an amount of from about 40 wt. % to about 90 wt. %, based on the total weight of the composition.

12. The method of claim 1 wherein the composition further comprises a wetting agent.

13. The method of claim 12 wherein the wetting agent comprises crude tall oil, oxidized crude tall oil, lecithin, organic phosphate esters, modified imidazolines and amidoamines, alkyl aromatic sulfates and sulfonates, or combinations thereof.

14. The method of claim 12 wherein the wetting agent is present in an amount of from about 0.01 vol. % to about 3 vol. %, based on the total volume of the composition.

15. The method of claim 1 wherein the composition optionally comprises a rate adjustment material, a viscosifying agent, a weighting agent, a fluid loss control agent, a thinning agent, a breaker, or combinations thereof.

16. The method of claim 15 wherein the rate adjustment material comprises diethyleneglycol monoformate, diethyleneglycol diformate, monoethyleneglycol diformate, monoethyleneglycol monoformate, polylactic acid, lactate esters, or combinations thereof.

17. The method of claim 1 wherein the oil-wet solids comprise a filter cake.

21. The method of claim 1 further comprising recovering the composition from the wellbore;

oxidizing the recovered composition to form an oxidized composition; and

separating the base fluid from the oxidized composition.

18. A method of servicing a wellbore comprising:

placing a composition comprising an acetate and/or lactate ester and excluding a mutual solvent precursor into contact with oil-wet solids in the wellbore under conditions;

wherein the acetate and/or lactate ester hydrolyzes to release acetic and/or lactic acid;

wherein the acetic and/or lactic acid catalyzes the hydrolysis of additional acetate and/or lactate ester; and

wherein all or a portion of the acetate and/or lactate ester converts at least a portion of the oil-wet solids to water-wet solids.

19. The method of claim 18 wherein the acetate ester comprises methyl acetate, ethyl acetate, propyl acetate, butyl acetate, monoacetin;

diacetin;

triacetin;

glyceryl diacetate;

glyceryl triacetate;

or combinations thereof.

20. The method of claim 18 wherein the lactate ester comprises methyl lactate, ethyl lactate, propyl lactate, butyl lactate, trilactin, polylactic acid, poly(lactides), or combinations thereof.