CA2434613A1 - Viscoelastic compositions - Google Patents
Viscoelastic compositions Download PDFInfo
- Publication number
- CA2434613A1 CA2434613A1 CA002434613A CA2434613A CA2434613A1 CA 2434613 A1 CA2434613 A1 CA 2434613A1 CA 002434613 A CA002434613 A CA 002434613A CA 2434613 A CA2434613 A CA 2434613A CA 2434613 A1 CA2434613 A1 CA 2434613A1
- Authority
- CA
- Canada
- Prior art keywords
- formula
- aqueous viscoelastic
- cleavable surfactant
- cleavable
- surfactant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract 18
- 239000004094 surface-active agent Substances 0.000 claims abstract 20
- 230000015572 biosynthetic process Effects 0.000 claims abstract 5
- 239000003792 electrolyte Substances 0.000 claims abstract 4
- 239000012530 fluid Substances 0.000 claims abstract 4
- 239000000126 substance Substances 0.000 claims abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 4
- 238000000034 method Methods 0.000 claims abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 claims 4
- 239000001257 hydrogen Substances 0.000 claims 4
- 125000001931 aliphatic group Chemical group 0.000 claims 3
- 125000004432 carbon atom Chemical group C* 0.000 claims 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 2
- 150000001450 anions Chemical class 0.000 claims 2
- 229910052799 carbon Inorganic materials 0.000 claims 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims 2
- 150000003839 salts Chemical class 0.000 claims 2
- XACKAZKMZQZZDT-KTKRTIGZSA-N 2-[(z)-octadec-9-enyl]butanedioic acid Chemical group CCCCCCCC\C=C/CCCCCCCCC(C(O)=O)CC(O)=O XACKAZKMZQZZDT-KTKRTIGZSA-N 0.000 claims 1
- 108010065338 N-ethylglycine Proteins 0.000 claims 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 claims 1
- 150000001408 amides Chemical class 0.000 claims 1
- 125000000129 anionic group Chemical group 0.000 claims 1
- 125000002091 cationic group Chemical group 0.000 claims 1
- 150000001768 cations Chemical class 0.000 claims 1
- -1 ester chloride Chemical class 0.000 claims 1
- 125000004185 ester group Chemical group 0.000 claims 1
- 150000002431 hydrogen Chemical group 0.000 claims 1
- 125000001165 hydrophobic group Chemical group 0.000 claims 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
- 229920006395 saturated elastomer Polymers 0.000 claims 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims 1
- 238000005755 formation reaction Methods 0.000 abstract 2
- 238000003776 cleavage reaction Methods 0.000 abstract 1
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 230000007017 scission Effects 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/66—Compositions based on water or polar solvents
- C09K8/68—Compositions based on water or polar solvents containing organic compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C229/00—Compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C229/02—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton
- C07C229/04—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated
- C07C229/06—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one amino and one carboxyl group bound to the carbon skeleton
- C07C229/10—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one amino and one carboxyl group bound to the carbon skeleton the nitrogen atom of the amino group being further bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings
- C07C229/12—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one amino and one carboxyl group bound to the carbon skeleton the nitrogen atom of the amino group being further bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings to carbon atoms of acyclic carbon skeletons
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/34—Esters of acyclic saturated polycarboxylic acids having an esterified carboxyl group bound to an acyclic carbon atom
- C07C69/40—Succinic acid esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/18—Quaternary ammonium compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/30—Viscoelastic surfactants [VES]
Abstract
The present invention provides aqueous viscoelastic compositions comprising a cleavable surfactant and possibly also an electrolyte. The cleavable surfactants useful in the present invention comprise at least one weak chemical bond, which is capable of being broken under appropriate conditions, to produce oil soluble and water soluble products typically having no interfacial properties and surface activity compared with the original surfactant molecule. Further, the rheological properties of the aqueous viscolelastic composition are usually altered upon cleavage of the cleavable surfactant generally resulting in the elimination of the viscofying, viscoelastic and surfactant properties of the composition. Aqueous viscoelastic compositions in accordance with the present invention are suitable for use in oil-field applications, particularly for hydraulic fracturing of subterranean formations. Thus, the present invention also relates to a wellbore service fluid and a method of fracturing a subterranean formation. The present invention also concerns novel cleavable surfactants.
Claims (14)
1. An aqueous viscoelastic composition comprising a cleavable surfactant.
2. An aqueous viscoelastic composition according to claim 1, wherein the cleavable surfactant comprises a hydrophobic group linked to a hydrophilic group via at least one weak chemical bond.
3. An aqueous viscoelastic composition according to claim 2, wherein the weak chemical bond of the cleavable surfactant is cleaved to produce at least one oil soluble product and at least one water soluble product.
4. An aqueous viscoelastic composition according to claim 2 ar 3, wherein the weak chemical bond is an acetal, amide or ester group.
5. An aqueous viscoelastic composition according to any one of the preceding claims, wherein the cleavable surfactant is cationic, anionic or zwitterionic.
6. An aqueous viscoelastic composition according to any one of the preceding claims, wherein the composition further comprises an electrolyte.
7. An aqueous viscoelastic composition comprising a cleavable surfactant and an electrolyte.
8. An aqueous viscoelastic composition according to claim 6 or 7, wherein the electrolyte is at least one inorganic water soluble salt or organic water soluble salt, or mixtures thereof.
9. An aqueous viscoelastic composition according to any one of the preceding claims, wherein the composition is an aqueous viscoelastic gel.
10. A wellbore service fluid comprising an aqueous viscoelastic composition in accordance with any one of the preceding claims.
11. A method of fracturing a subterranean formation, comprising the steps of:
(A) providing a wellbore service fluid comprising a cleavable surfactant, and (B) pumping the fluid through a wellbore and into a subterranean formation at a pressure sufficient to fracture the formation.
(A) providing a wellbore service fluid comprising a cleavable surfactant, and (B) pumping the fluid through a wellbore and into a subterranean formation at a pressure sufficient to fracture the formation.
12. A cleavable surfactant having the structure of formula 1, formula 2 or formula 3:
R1-X-(CR5R6)m-Y~Z~
Formula 1 or R1-X-(CR5R6)m-A~B~
Formula 2 or R1-X-(CR5R6)m-Y~-~
Formula 3 where (i) R1 is a saturated or unsaturated, linear or branched aliphatic chain of at least 18 carbon atoms;
(ii) X is an O(CO), (CO)O, R7N(CO), or (CO)NR7 group;
(iii) m is at least one;
(iv) Y~ is -NR2R3R4;
(v) R2, R3, R4, R5, R6 and R7 are each independently hydrogen; a linear or branched, saturated aliphatic chain of at least 1 carbon atom; or a linear or branched, saturated aliphatic chain of at least 1 carbon atom with one or more of the hydrogen atoms replaced by a hydroxyl group, wherein for cleavable surfactants of formula 3, the R
group linked to A~ is not hydrogen;
(vi) A~ is a sulfonate ox carboxylate anionic group; and (vii) Z~ and B~ are ionic counterions associated with a cleavable surfactant of formula 1 or formula 2, where Z~ is a monovalent anion or divalent anion and B~ is hydrogen or a monovalent cation, excluding surfactants of formula 1 in which X is O(CO), R5 and R6 are each independently hydrogen, m is greater than or equal to 1 but less than 5 and Y~
is NR2R3R4.
R1-X-(CR5R6)m-Y~Z~
Formula 1 or R1-X-(CR5R6)m-A~B~
Formula 2 or R1-X-(CR5R6)m-Y~-~
Formula 3 where (i) R1 is a saturated or unsaturated, linear or branched aliphatic chain of at least 18 carbon atoms;
(ii) X is an O(CO), (CO)O, R7N(CO), or (CO)NR7 group;
(iii) m is at least one;
(iv) Y~ is -NR2R3R4;
(v) R2, R3, R4, R5, R6 and R7 are each independently hydrogen; a linear or branched, saturated aliphatic chain of at least 1 carbon atom; or a linear or branched, saturated aliphatic chain of at least 1 carbon atom with one or more of the hydrogen atoms replaced by a hydroxyl group, wherein for cleavable surfactants of formula 3, the R
group linked to A~ is not hydrogen;
(vi) A~ is a sulfonate ox carboxylate anionic group; and (vii) Z~ and B~ are ionic counterions associated with a cleavable surfactant of formula 1 or formula 2, where Z~ is a monovalent anion or divalent anion and B~ is hydrogen or a monovalent cation, excluding surfactants of formula 1 in which X is O(CO), R5 and R6 are each independently hydrogen, m is greater than or equal to 1 but less than 5 and Y~
is NR2R3R4.
13. A cleavable surfactant according to claim 12, wherein the cleavable surfactant is N,N-dimethyl N-ethyl glycine erucyl ester chloride.
14. A cleavable surfactant according to claim 12, wherein the cleavable surfactant is monooleyl succinic acid or derivatives thereof.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0103449.5 | 2001-02-13 | ||
GB0103449A GB2372058B (en) | 2001-02-13 | 2001-02-13 | Viscoelastic compositions |
PCT/GB2002/000587 WO2002064945A1 (en) | 2001-02-13 | 2002-02-13 | Viscoelastic compositions |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2434613A1 true CA2434613A1 (en) | 2002-08-22 |
CA2434613C CA2434613C (en) | 2010-04-06 |
Family
ID=9908579
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002434345A Expired - Fee Related CA2434345C (en) | 2001-02-13 | 2002-02-13 | Aqueous viscoelastic fluid |
CA2434613A Expired - Fee Related CA2434613C (en) | 2001-02-13 | 2002-02-13 | Viscoelastic compositions |
CA2434357A Expired - Fee Related CA2434357C (en) | 2001-02-13 | 2002-02-13 | Aqueous viscoelastic fluid |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002434345A Expired - Fee Related CA2434345C (en) | 2001-02-13 | 2002-02-13 | Aqueous viscoelastic fluid |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2434357A Expired - Fee Related CA2434357C (en) | 2001-02-13 | 2002-02-13 | Aqueous viscoelastic fluid |
Country Status (12)
Country | Link |
---|---|
US (4) | US7036585B2 (en) |
EP (2) | EP1360395A1 (en) |
CN (2) | CN100510316C (en) |
AU (2) | AU2002229950B2 (en) |
BR (2) | BR0207484B1 (en) |
CA (3) | CA2434345C (en) |
EA (3) | EA006450B1 (en) |
GB (4) | GB2372058B (en) |
MX (2) | MXPA03007219A (en) |
NO (2) | NO20033572L (en) |
OA (2) | OA12445A (en) |
WO (3) | WO2002064947A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104028163A (en) * | 2014-06-24 | 2014-09-10 | 江苏万淇生物科技有限公司 | Method for synthesizing cardanol quaternary ammonium surfactant |
Families Citing this family (123)
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CN104028163A (en) * | 2014-06-24 | 2014-09-10 | 江苏万淇生物科技有限公司 | Method for synthesizing cardanol quaternary ammonium surfactant |
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