Use of a copolymer made from styrene sulphonic acid to inhibit or slow the formation of sulphide deposits
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C09K-008/54
C09K-008/532
C08F-012/30
E21B-037/06
출원번호
US-0106610
(2014-12-19)
등록번호
US-10106722
(2018-10-23)
우선권정보
FR-13 63289 (2013-12-20)
국제출원번호
PCT/FR2014/053442
(2014-12-19)
국제공개번호
WO2015/092311
(2015-06-25)
발명자
/ 주소
Hurtevent, Christian
Baraka-Lokmane, Salima
Ordonez-Varela, John-Richard
Tillement, Olivier
Rossetti, Fabien
Ould Metidji, Mahmoud
출원인 / 주소
TOTAL SA
대리인 / 주소
Oliff PLC
인용정보
피인용 횟수 :
0인용 특허 :
4
초록▼
A copolymer containing a unit including an optionally neutralized styrene sulphonic acid unit and a unit containing at least one optionally neutralized (poly)carboxylic acid unit or a (poly)amido-amine unit, to inhibit or slow the formation of sulphide deposits during the extraction of gas or oil. I
A copolymer containing a unit including an optionally neutralized styrene sulphonic acid unit and a unit containing at least one optionally neutralized (poly)carboxylic acid unit or a (poly)amido-amine unit, to inhibit or slow the formation of sulphide deposits during the extraction of gas or oil. It also relates to a method to inhibit or slow the formation of sulphide deposits during the extraction of gas or oil, including the injection of a fluid containing the abovementioned copolymer into a wellbore, a subterranean formation or a gas or oil well.
대표청구항▼
1. Method for inhibiting or slowing the formation of sulphide deposits during the extraction of gas or oil, comprising: injecting a fluid containing a copolymer into a wellbore, a subterranean formation, or a gas or oil well containing sulphides,wherein the copolymer contains a unit comprising a sty
1. Method for inhibiting or slowing the formation of sulphide deposits during the extraction of gas or oil, comprising: injecting a fluid containing a copolymer into a wellbore, a subterranean formation, or a gas or oil well containing sulphides,wherein the copolymer contains a unit comprising a styrene sulphonic acid unit and a unit containing a (poly)carboxylic acid unit or a (poly)amido-amine unit,wherein the (poly)carboxylic acid unit is obtained using an unsaturated monomer bearing at least one carboxylic acid function selected from the group consisting of maleic acid, fumaric acid, itaconic acid, citraconic acid, and cis-1,2,3,6-tetrahydrophthalic anhydride;wherein the styrene sulphonic acid unit and the (poly)carboxylic acid unit are capable of being neutralized, independently of each other, to form a salt; andwherein a molar percentage, in the copolymer, of units containing the styrenesulphonic acid unit is between 10 and 90%. 2. Method according to claim 1, wherein the (poly)amido-amine unit is obtained by reacting all or a portion of the carboxylic acid functions with a compound bearing at least two primary or secondary amine functions, the compound being selected from the group consisting of DETA (diethylene triamine), TETA (triethylene tetramine), TEPA (tetraethylene pentamine), dihexylene triamine, polyethyleneimine (PEI), silicone polymers functionalised by amine groups, chitosans, polypeptides, and proteins. 3. Method according to claim 1, wherein the copolymer is solely constituted of units comprising the styrene sulphonic acid unit and units containing the (poly)carboxylic acid unit or the (poly)amido-amine unit. 4. Method according to claim 1, wherein the copolymer has an average molecular mass between 10 and 50 kDa. 5. Method according to claim 1, wherein the fluid is injected into an oil well operating at more than 10 MPa, and at 150 to 250° C. 6. Method according to claim 1, wherein the styrene sulphonic acid unit is neutralized to form a salt. 7. Method according to claim 1, wherein the styrene sulphonic acid unit is not neutralized to form a salt. 8. Method according to claim 1, wherein the (poly)carboxylic acid unit is neutralized to form a salt. 9. Method according to claim 1, wherein the (poly)carboxylic acid unit is not neutralized to form a salt.
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이 특허에 인용된 특허 (4)
Ke,Mingjie; Qu,Qi, Method for inhibiting or controlling inorganic scale formations.
Wang,Xiaolan; Qu,Qi; Ke,Mingjie, Method for inhibiting or controlling inorganic scale formations with copolymers of acrylamide and quaternary ammonium salts.
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