Composition for Treatment of Subterranean Formations

Patent metadata

Field	Value
Publication number	US-2017327735-A1
Application number	US-201415526451-A
Country	US
Kind code	A1
Filing date	Dec 10, 2014
Priority date	Dec 10, 2014
Publication date	Nov 16, 2017
Grant date	—

Abstract

Various embodiments disclosed relate to acidizing compositions and methods of using the same for treatment of subterranean formations, wherein the acidizing compositions comprise an acid; and a compound having a structure chosen from: Formula (I, II), wherein R 1 at each occurrence is independently chosen from —H and substituted or unsubstituted (C 1 -C 30 )hydrocarbyl, R2 at each occurrence is independently chosen from —CN, CONR A 2 , and —COOR A , wherein R A at each occurrence is independently chosen from —H and substituted or unsubstituted (C 1 -C 30 )hydrocarbyl, R 3 at each occurrence is independently chosen from substituted or unsubstituted (C 1 -C 30 )hydrocarbyl, a substituted or unsubstituted (C 1 -C 10 )heterocyclyl, and a (Ci-C3o)hydrocarbyl substituted by a substituted or unsubstituted (C 1 -C 10 )heterocyclyl and interrupted by 0, 1, 2, or 3 groups independently chosen from -0-, —S—, and substituted or unsubstituted —NH—, and M is a Michael-addition donor.

First claim

1 .- 57 . (canceled)

58 . A method of treating a subterranean formation, comprising:
placing an acidizing composition into a subterranean formation, the acidizing composition comprising:
an acid; and
a compound having a structure chosen from:

wherein:
R 1 at each occurrence is independently chosen from —H and substituted or unsubstituted (C 1 -C 30 )hydrocarbyl,
R 2 at each occurrence is independently chosen from —CN, —CONR A 2 , and —COOR A , wherein R A at each occurrence is independently chosen from —H and substituted or unsubstituted (C 1 -C 30 )hydrocarbyl,
R 3 at each occurrence is independently chosen from substituted or unsubstituted (C 1 -C 30 )hydrocarbyl, a substituted or unsubstituted (C 1 -C 10 )heterocyclyl, and a (C 1 -C 30 )hydrocarbyl substituted by a substituted or unsubstituted (C 1 -C 10 )heterocyclyl and interrupted by 0, 1, 2, or 3 groups independently chosen from —O—, —S—, and substituted or unsubstituted —NH—, and
M is a Michael-addition donor.

59 . The method of claim 58 , wherein the compound has the structure:

and
wherein the method further comprises:
contacting the compound with a Michael-addition donor to form a compound having the structure:

60 . The method of claim 58 , wherein about 1 wt % to about 5 wt % of the acidizing composition is the acid, and wherein the acid is at least one of hydrochloric acid, fluoric acid, acetic acid, and formic acid.

61 . The method of claim 58 , wherein about 0.01 wt % to about 10 wt % of the composition is the compound, and wherein the compound has the structure:

62 . The method of claim 58 , wherein R 1 at each occurrence is independently chosen from —H and (C 1 -C 5 )alkyl, wherein R 2 at each occurrence is independently chosen from —CN and —COOR A , and wherein R A at each occurrence is independently chosen from —H and (C 1 -C 5 )alkyl.

63 . The method of claim 58 , wherein R 1 at each occurrence is independently chosen from methyl, ethyl, isopropyl, t-butyl, and n-butyl, wherein R 2 is —CN, and wherein R A is —H.

64 . The method of claim 58 , wherein:
at each occurrence, R 3 is independently (C 1 -C 10 )heterocyclyl-L-R 4 , wherein the (C 1 -C 10 )heterocyclyl is further substituted or further unsubstituted, at each occurrence, L is independently chosen from a bond and a (C 1 -C 30 )hydrocarbylene interrupted by 0, 1, 2, or 3 groups independently chosen from —O—, —S—, and substituted or unsubstituted —NH—, and at each occurrence, R 4 is independently chosen from —H and —N + R 5 3 X − , wherein at each occurrence R 5 is independently substituted or unsubstituted (C 1 -C 10 )alkyl and X − is a counterion.

65 . The method of claim 64 , wherein at each occurrence, R 3 is independently

wherein X − is a counterion.

66 . The method of claim 64 , wherein at each occurrence, L is independently chosen from methylene, ethylene, propylene, butylene, pentylene, hexylene, heptylene, and octylene, wherein at each occurrence, R 4 is independently chosen from —H and —N + R 5 3 X − , and wherein at each occurrence R 5 is independently substituted or unsubstituted (C 1 -C 5 )alkyl and X − is a halide.

67 . The method of claim 58 , wherein at each occurrence M is independently selected from —SH and —SR 6 , wherein R 6 is a substituted or unsubstituted (C 1 -C 30 )hydrocarbyl interrupted by 0, 1, 2, or 3 groups independently chosen from —O—, —S—, and substituted or unsubstituted —NH—.

68 . The method of claim 58 , wherein the compound has a structure chosen from:

wherein L is independently chosen from a bond and a (C 1 -C 15 )hydrocarbylene, R 4 is independently chosen from —H and —N + R 5 3 X − , R 5 is (C 1 -C 5 )alkyl, and X − is a counterion.

69 . The method of claim 58 , wherein the compound has a structure chosen from:

wherein L is independently chosen from a bond and a (C 1 -C 15 )hydrocarbylene, R 4 is independently chosen from —H and —N + R 5 3 X − , R 5 is (C 1 -C 5 )alkyl, and X − is a counterion.

70 . The method of claim 58 , wherein the compound has a structure chosen from:

wherein L is independently chosen from a bond and a (C 1 -C 15 )hydrocarbylene, R 4 is independently chosen from —H and —N + R 5 3 X − , R 5 is (C 1 -C 5 )alkyl, and X − is a counterion.

71 . The method of claim 58 , wherein the compound has a structure chosen from:

wherein L is independently chosen from a bond and a (C 1 -C 15 )hydrocarbylene, R 4 is independently chosen from —H and —N + R 5 3 X − , R 5 is (C 1 -C 5 )alkyl, and X − is a counterion.

72 . The method of claim 58 , wherein the compound has a structure chosen from:

wherein L is independently chosen from a bond and a (C 1 -C 15 )hydrocarbylene, R 4 is independently chosen from —H and —N + R 5 3 X − , R 5 is (C 1 -C 5 )alkyl, and X − is a counterion.

73 . The method of claim 58 , wherein the composition further comprises at least two agents selected from the group consisting of a chelating agent, a sulfide scavenger, a corrosion inhibitor, and any combination thereof.

74 . The method of claim 58 , wherein the placing of the acidizing composition in the subterranean formation comprises fracturing at least part of the subterranean formation to form at least one subterranean fracture, and wherein the acidizing composition further comprises a proppant.

75 . A system for performing the method of claim 58 , the system comprising:
a tubular disposed in the subterranean formation; and a pump configured to pump the acidizing composition in the subterranean formation through the tubular.

76 . A method of treating a subterranean formation, comprising:
placing an acidizing composition in a subterranean formation, the acidizing composition comprises:
an acid; and
a compound having the structure:

wherein:
R 1 is (C 1 -C 5 )alkyl,
L is (C 1 -C 15 )alkylene,
R 5 is (C 1 -C 5 )alkyl, and
X − at each occurrence is independently selected from halide.

77 . An acidizing composition for treating a subterranean formation, comprising:
an acid; and a compound having the structure:

wherein:
R 1 is (C 1 -C 5 )alkyl,
L is (C 1 -C 15 )alkylene,
R 5 is (C 1 -C 5 )

Assignees

• Halliburton Energy Services Inc

Inventors

• Belakshe Ravikant S
• Salla Rajender
• Uppuluri Ramesh

Classifications

• C09K8/035

  Organic additives · CPC title

• C09K8/74 Primary

  combined with additives added for specific purposes · CPC title

• C09K2208/32

  Anticorrosion additives · CPC title

• C09K8/5086

  obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds · CPC title