Ampholyte polymers and methods of treating subterranean formations with the same
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-043/22
E21B-043/26
C09K-008/68
C09K-008/12
C09K-008/035
C09K-008/42
C09K-008/512
C09K-008/52
C09K-008/62
C09K-008/72
C09K-008/80
C09K-008/82
C09K-008/88
C04B-024/16
C04B-028/02
C09K-008/467
C04B-103/00
출원번호
US-0204506
(2014-03-11)
등록번호
US-9732265
(2017-08-15)
발명자
/ 주소
Chung, HsinChen
Hu, Yuntao Thomas
Tonmukayakul, Narongsak
Fitzpatrick, Harvey
출원인 / 주소
Halliburton Energy Services, Inc.
대리인 / 주소
Chamberlain Hrdlicka
인용정보
피인용 횟수 :
0인용 특허 :
22
초록▼
Various embodiments disclosed relate to a composition including a crosslinkable ampholyte polymer or a crosslinked product of the same, methods of making and using the composition, and systems including the composition. In various embodiments, the present invention provides a method of treating a su
Various embodiments disclosed relate to a composition including a crosslinkable ampholyte polymer or a crosslinked product of the same, methods of making and using the composition, and systems including the composition. In various embodiments, the present invention provides a method of treating a subterranean formation. The method can include obtaining or providing a composition including a crosslinkable ampholyte polymer. The crosslinkable ampholyte polymer can include an ethylene repeating unit including a —C(O)NH2 group, an ethylene repeating unit including a —S(O)2OR1 group, and an ethylene repeating unit comprising an —N+R23X− group. At each occurrence, R1 can be independently selected from the group consisting of —H and a counterion. At each occurrence, R2 can be independently substituted or unsubstituted (C1-C20)hydrocarbyl. At each occurrence, X− can be independently a counterion. The composition can also include at least one crosslinker. The method can include placing the composition in a subterranean formation.
대표청구항▼
1. A method of treating a subterranean formation, the method comprising: placing in the subterranean formation a composition comprising a crosslinkable ampholyte polymer comprising an ethylene repeating unit comprising a —C(O)NH2 group, an ethylene repeating unit comprising an —S(O)2OR1 group, and a
1. A method of treating a subterranean formation, the method comprising: placing in the subterranean formation a composition comprising a crosslinkable ampholyte polymer comprising an ethylene repeating unit comprising a —C(O)NH2 group, an ethylene repeating unit comprising an —S(O)2OR1 group, and an ethylene repeating unit comprising an —N+R23X− group, wherein at each occurrence, R1 is independently selected from the group consisting of —H and a counterion,at each occurrence, R2 is independently substituted or unsubstituted (C1-C20)hydrocarbyl, andat each occurrence, X− is independently a counterion; andat least one crosslinker; andcrosslinking the polymer with the crosslinker in the subterranean formation;wherein prior to crosslinking of the crosslinkable ampholyte polymer the composition has less friction in the subterranean formation than a corresponding composition that is the same as the composition comprising the crosslinkable ampholyte polymer but that is free of the crosslinkable ampholyte polymer, andthe crosslinkable ampholyte polymer has about Zwt wt % of the ethylene repeating unit comprising the —C(O)NH2 group, about Nwt wt % of the ethylene repeating unit comprising the —S(O)2OR1 group, and about Mwt wt % of the ethylene repeating unit comprising the —N+R23X− group, wherein Zwt is about 10% to about 70%, Nwt is about 1% to about 40%, and Mwt is about 20% to about 80%. 2. The method of claim 1, wherein the composition further comprises an aqueous liquid. 3. The method of claim 2, wherein the aqueous liquid comprises at least one of a drilling fluid, a fracturing fluid, a diverting fluid, and a lost circulation treatment fluid. 4. The method of claim 1, further comprising at least partially crosslinking the crosslinkable ampholyte polymer to provide a crosslinked ampholyte polymer. 5. The method of claim 1, wherein about 0.001 wt % to about 95 wt % of the composition is the crosslinkable ampholyte polymer. 6. The method of claim 1, wherein the crosslinkable ampholyte polymer has a molecular weight of about 100,000 g/mol to about 20,000,000 g/mol. 7. The method of claim 1, wherein the crosslinkable ampholyte polymer comprises repeating units having the structure: wherein at each occurrence R3, R4, and R5 are each independently selected from the group consisting of —H and a substituted or unsubstituted C1-C5 hydrocarbyl,at each occurrence L1, L2, and L3 are each independently selected from the group consisting of a bond and a substituted or unsubstituted C1-C20 hydrocarbyl interrupted or terminated with 0, 1, 2, or 3 of at least one of —NR3—, —S—, and —O—, andthe repeating units are in a block, alternate, or random configuration, and each repeating unit is independently in the orientation shown or in the opposite orientation. 8. The method of claim 1, wherein the crosslinkable ampholyte polymer comprises repeating units having the structure: wherein the repeating units are in a block, alternate, or random configuration, and each repeating unit is independently in the orientation shown or in the opposite orientation. 9. The method of claim 1, wherein the crosslinkable ampholyte polymer comprises repeating units having the structure: wherein the repeating units are in a block, alternate, or random configuration, and each repeating unit is independently in the orientation shown or in the opposite orientation. 10. The method of claim 1, wherein about 0.0001 wt % to about 80 wt % of the composition is the crosslinker. 11. The method of claim 1, wherein the crosslinker comprises at least one of chromium, aluminum, antimony, zirconium, titanium, calcium, boron, iron, silicon, copper, zinc, magnesium, and an ion thereof. 12. The method of claim 1, wherein the crosslinker comprises at least one of a poly(amino(C2-C10)hydrocarbylene) crosslinker and a (C6-C20)aryl alcohol-(C1-C20)aldehyde crosslinker. 13. The method of claim 1, wherein the crosslinker comprises at least one of polyethyleneimine, phenol-formaldehyde, and glyoxal. 14. The method of claim 1, wherein the crosslinker comprises at least one of boric acid, borax, a borate, a (C1-C30)hydrocarbylboronic acid, a (C1-C30)hydrocarbyl ester of a (C1-C30)hydrocarbylboronic acid, a (C1-C30)hydrocarbylboronic acid-modified polyacrylamide, ferric chloride, disodium octaborate tetrahydrate, sodium metaborate, sodium diborate, sodium tetraborate, disodium tetraborate, a pentaborate, ulexite, colemanite, magnesium oxide, zirconium lactate, zirconium triethanol amine, zirconium lactate triethanolamine, zirconium carbonate, zirconium acetylacetonate, zirconium malate, zirconium citrate, zirconium diisopropylamine lactate, zirconium glycolate, zirconium triethanol amine glycolate, zirconium lactate glycolate, titanium lactate, titanium malate, titanium citrate, titanium ammonium lactate, titanium triethanolamine, titanium acetylacetonate, aluminum lactate, and aluminum citrate. 15. The method of claim 1, wherein the composition further comprises a secondary viscosifier. 16. A system configured to perform the method of claim 1, the system comprising: a tubular disposed in the subterranean formation; anda pump configured to pump the composition into the subterranean formation through the tubular. 17. A method of treating a subterranean formation, the method comprising: placing in the subterranean formation a composition comprising a crosslinkable ampholyte polymer comprising repeating units having the structure: wherein at each occurrence, R1 is independently selected from the group consisting of —H and a counterion,the repeating units are in a block, alternate, or random configuration, and each repeating unit is independently in the orientation shown or in the opposite orientation,the crosslinkable ampholyte polymer has a molecular weight of about 100,000 g/mol to about 20,000,000 g/mol, andthe crosslinkable ampholyte polymer has about 30 wt % to about 50 wt % of the ethylene repeating unit comprising the —C(O)NH2 group, about 5 wt % to about 15 wt % of the ethylene repeating unit comprising the —S(O)2OR1 group, and about 40 wt % to about 60 wt % of the ethylene repeating unit comprising the —N+R23X− group;a crosslinker comprising polyethyleneimine; anda downhole fluid comprising at least one of a drilling fluid, a fracturing fluid, a diverting fluid, and a lost circulation treatment fluid; andcrosslinking the polymer with the crosslinker in the subterranean formation;wherein about 0.001 wt % to about 30 v/v % of the composition is the crosslinkable ampholyte polymer and the crosslinker, andprior to crosslinking between the crosslinkable ampholyte polymer and the crosslinker the composition has less friction in the subterranean formation than a corresponding composition that is the same as the composition comprising the crosslinkable ampholyte polymer but that is free of the crosslinkable ampholyte polymer.
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