Siloxane surfactant additives for oil and gas applications
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C09K-008/584
C09K-008/70
C09K-008/60
C09K-008/38
C09K-008/536
C09K-008/594
C09K-008/94
출원번호
US-0489423
(2014-09-17)
등록번호
US-10053619
(2018-08-21)
발명자
/ 주소
Saboowala, Hasnain
Hill, Randal M.
출원인 / 주소
Flotek Chemistry, LLC
대리인 / 주소
Wolf, Greenfield & Sacks, P.C.
인용정보
피인용 횟수 :
0인용 특허 :
157
초록▼
A well treatment additive includes a siloxane surfactant, a solvent and an aqueous phase. The solvent, in some embodiments, is a terpene hydrocarbon. Also disclosed is a method for using the well treatment additive to form and enhance the properties of foams useful for the treatment of oil and gas w
A well treatment additive includes a siloxane surfactant, a solvent and an aqueous phase. The solvent, in some embodiments, is a terpene hydrocarbon. Also disclosed is a method for using the well treatment additive to form and enhance the properties of foams useful for the treatment of oil and gas wells. Methods of using the novel well treatment foams include using the additives in a variety of well treatment processes including, but not limited to, acidizing operations, hydraulic fracturing operations, well remediation operations and water removal operations.
대표청구항▼
1. A well treatment additive comprising: a foam comprising:a gas selected from the group consisting of carbon dioxide, flu gas, methane, natural gas, and nitrogen;a microemulsion having a water based continuous phase and comprising a siloxane surfactant, a solvent, and an aqueous phase,wherein the s
1. A well treatment additive comprising: a foam comprising:a gas selected from the group consisting of carbon dioxide, flu gas, methane, natural gas, and nitrogen;a microemulsion having a water based continuous phase and comprising a siloxane surfactant, a solvent, and an aqueous phase,wherein the solvent is a terpene hydrocarbon;wherein the siloxane surfactant is present in an amount between about 10 wt % and about 70 wt % versus the total weight of the microemulsion; andwherein the siloxane surfactant is an alkoxylated siloxane surfactant selected from the group consisting of: (CH3)3SiO(Si(CH3)2O)nSi(CH3)2CH2CH2CH2(OCH2CH2)x(OCH(CH3)CH2)yOR3,R3(OCH2CH2)x(OCH(CH3)CH2)yCH2CH2CH2(CH3)2SiO(Si(CH3)2O)nSi(CH3)2CH2CH2CH2(OCH2CH2)x(OCH(CH3)CH2)yOR3, and wherein each R3 is independently H, —CH3, or —C(O)CH3, each n is independently 1-4, each x is independently 4-12, z is 3 or 4, and each y is independently 0-2. 2. The well treatment additive of claim 1, wherein the siloxane surfactant comprises an AB-type siloxane copolymer, an ABA-type siloxane copolymer, or a functionalized cyclosiloxane. 3. The well treatment additive of claim 1, wherein the solvent is present in the microemulsion in an amount between about 5 wt % and about 35 wt % versus the total weight of the microemulsion. 4. The well treatment additive of claim 1, wherein the siloxane surfactant comprises an alkoxylated siloxane surfactant. 5. The well treatment additive of claim 1, wherein the microemulsion further comprises a co-solvent. 6. The well treatment additive of claim 5, wherein the co-solvent is selected from the group consisting of methanol, ethanol, IPA, ethylene glycol, propylene glycol, dipropylene glycol monomethyl ether, triethylene glycol, ethylene glycol monobutyl ether, and combinations thereof. 7. The well treatment additive of claim 5, wherein the co-solvent is present in the microemulsion in an amount between about 5 wt % and about 20 wt % versus the total weight of the microemulsion. 8. The well treatment additive of claim 1, wherein the solvent is present in the microemulsion in an amount between about 3 wt % and about 50 wt %, versus the total weight of the microemulsion. 9. The well treatment additive of claim 5, wherein the co-solvent is present in the microemulsion in an amount between about 5 wt % and about 45 wt %, versus the total weight of the microemulsion. 10. A method of treating a wellbore of an oil and/or gas well comprising injecting the well treatment additive of claim 1 into the wellbore. 11. The well treatment additive of claim 1, wherein the gas is carbon dioxide. 12. The well treatment additive of claim 1, wherein the gas is nitrogen. 13. The well treatment additive of claim 4, wherein the siloxane surfactant is an alkoxylated trisiloxane. 14. The well treatment additive of claim 1, wherein the microemulsion further comprises a co-solvent. 15. The well treatment additive of claim 14, wherein the co-solvent is present in the microemulsion in an amount between about 5 wt % and about 20 wt % versus the total weight of the microemulsion. 16. A method of treating a wellbore of an oil and/or gas well comprising injecting the well treatment additive of claim 15 into the wellbore. 17. The method of claim 16, wherein the gas is carbon dioxide or nitrogen, or a combination thereof.
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이 특허에 인용된 특허 (157)
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