Method of removing an invert emulsion filter cake after the drilling process using a single phase microemulsion
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C09K-008/28
B01F-003/08
B01F-017/00
출원번호
UP-0541860
(2006-10-02)
등록번호
US-7687439
(2010-04-23)
발명자
/ 주소
Jones, Thomas A.
Clark, David E.
Quintero, Lirio
Ewen, Bruce Rae
출원인 / 주소
Baker Hughes Incorporated
대리인 / 주소
Mossman Kumar & Tyler PC
인용정보
피인용 횟수 :
29인용 특허 :
11
초록▼
Single phase microemulsions improve the removal of filter cakes formed during drilling with invert emulsions. The single phase microemulsion removes oil and solids from the deposited filter cake. Optionally, an acid capable of solubilizing the filter cake bridging particles may also be used with the
Single phase microemulsions improve the removal of filter cakes formed during drilling with invert emulsions. The single phase microemulsion removes oil and solids from the deposited filter cake. Optionally, an acid capable of solubilizing the filter cake bridging particles may also be used with the microemulsion. In one non-limiting embodiment the acid may be a polyamino carboxylic acid. Skin damage removal from internal and external filter cake deposition can be reduced.
대표청구항▼
We claim: 1. A thermodynamically stable, macroscopically homogeneous, single phase microemulsion comprising: a polar phase; a nonpolar phase; a surfactant; a polyamino carboxylic acid and salts thereof in a concentration in the microemulsion ranging from 1 to 30 volume %; and an acid selected from
We claim: 1. A thermodynamically stable, macroscopically homogeneous, single phase microemulsion comprising: a polar phase; a nonpolar phase; a surfactant; a polyamino carboxylic acid and salts thereof in a concentration in the microemulsion ranging from 1 to 30 volume %; and an acid selected from the group of inorganic acids consisting of hydrochloric acid, sulfuric acid, and mixtures thereof, and organic acids consisting of acetic acid, formic acid and salts thereof and mixtures thereof. 2. The microemulsion of claim 1 where the surfactant is selected from the group consisting of non-ionic surfactants, anionic surfactant, cationic surfactants and amphoteric surfactants. 3. The microemulsion of claim 2 where the nonionic surfactant is selected from the group consisting of alkyl polyglycosides, sorbitan esters, methyl glucoside esters, and alcohol ethoxylates; the anionic surfactant is selected from the group consisting of alkali metal alkyl sulfates, alkyl sulfonates, branched ether sulfonates, alkyl disulfonate alkyl disulfates, alkyl sulphosuccinates, alkyl ether sulfates, and branched ether sulfates; and the cationic surfactant are selected from the group consisting of arginine methyl esters, alkanolamines, and alkylenediamides. 4. The microemulsion of claim 1 where the polyamino carboxylic acid is selected from the group consisting of nitrilotriacetic acid (NTA), ethylenediamine tetraacetic acid (EDTA), trans-1,2-diaminocyclohexane-N,N,N′,N′,-tetraacetic acid monohydrate (CDTA), diethylenetriamine pentaacetic acid (DTPA), dioxaoctamethylene dinitrilo tetraacetic acid (DOCTA), hydroxyethylethylenediamine triacetic acid (HEDTA), triethylenetetraamine hexaacetic acid (TTHA), trans-1,2-diaminocyclohexane tetraacetic acid (DCTA), and salts thereof and mixtures thereof. 5. The microemulsion of claim 1 where the microemulsion further comprises brine. 6. A thermodynamically stable, macroscopically homogeneous, single phase microemulsion comprising: a polar phase comprising brine; a nonpolar phase; a surfactant selected from the group consisting of non-ionic surfactants, anionic surfactant, cationic surfactants and amphoteric surfactants; a polyamino carboxylic acid and salts thereof; and an acid selected from the group of inorganic acids consisting of hydrochloric acid, sulfuric acid, and mixtures thereof, and organic acids consisting of acetic acid, formic acid and salts thereof and mixtures thereof. 7. The microemulsion of claim 6 where the nonionic surfactant is selected from the group consisting of alkyl polyglycosides, sorbitan esters, methyl glucoside esters, and alcohol ethoxylates; the anionic surfactant is selected from the group consisting of alkali metal alkyl sulfates, alkyl sulfonates, branched ether sulfonates, alkyl disulfonate alkyl disulfates, alkyl sulphosuccinates, alkyl ether sulfates, and branched ether sulfates; and the cationic surfactant are selected from the group consisting of arginine methyl esters, alkanolamines, and alkylenediamides. 8. The microemulsion of claim 6 where the polyamino carboxylic acid is selected from the group consisting of nitrilotriacetic acid (NTA), ethylenediamine tetraacetic acid (EDTA), trans-1,2-diaminocyclohexane-N,N,N′,N′,-tetraacetic acid monohydrate (CDTA), diethylenetriamine pentaacetic acid (DTPA), dioxaoctamethylene dinitrilo tetraacetic acid (DOCTA), hydroxyethylethylenediamine triacetic acid (HEDTA), triethylenetetraamine hexaacetic acid (TTHA), trans-1,2-diaminocyclohexane tetraacetic acid (DCTA), and salts thereof and mixtures thereof. 9. The microemulsion of claim 6 where the concentration of polyamino carboxylic acid in the microemulsion ranges from 1 to 30 volume %. 10. A thermodynamically stable, macroscopically homogeneous, single phase microemulsion comprising: a polar phase; a nonpolar phase; a surfactant selected from the group consisting of non-ionic surfactants, anionic surfactant, cationic surfactants and amphoteric surfactants; a polyamino carboxylic acid and salts thereof; and an acid selected from the group of inorganic acids consisting of hydrochloric acid, sulfuric acid, and mixtures thereof, and organic acids consisting of acetic acid, formic acid and salts thereof and mixtures thereof. 11. The microemulsion of claim 10 where the nonionic surfactant is selected from the group consisting of alkyl polyglycosides, sorbitan esters, methyl glucoside esters, and alcohol ethoxylates; the anionic surfactant is selected from the group consisting of alkali metal alkyl sulfates, alkyl sulfonates, branched ether sulfonates, alkyl disulfonate alkyl disulfates, alkyl sulphosuccinates, alkyl ether sulfates, and branched ether sulfates; and the cationic surfactant are selected from the group consisting of arginine methyl esters, alkanolamines, and alkylenediamides. 12. The microemulsion of claim 10 where the polyamino carboxylic acid is selected from the group consisting of nitrilotriacetic acid (NTA), ethylenediamine tetraacetic acid (EDTA), trans-1,2-diaminocyclohexane-N,N,N′,N′,-tetraacetic acid monohydrate (CDTA), diethylenetriamine pentaacetic acid (DTPA), dioxaoctamethylene dinitrilo tetraacetic acid (DOCTA), hydroxyethylethylenediamine triacetic acid (HEDTA), triethylenetetraamine hexaacetic acid (TTHA), trans-1,2-diaminocyclohexane tetraacetic acid (DCTA), and salts thereof and mixtures thereof. 13. The microemulsion of claim 10 where the concentration of polyamino carboxylic acid in the microemulsion ranges from 1 to 30 volume %.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (11)
Von Krosigk, James R.; Duncan, Jr., William M., Acid based micro-emulsions.
Klier John ; Tucker Christopher J. ; Strandburg Gary M., High water content, low viscosity, oil continuous microemulsions and emulsions, and their use in cleaning applications.
Patel Arvind D. (Houston TX) McGlothlin Raymond E. (Houston TX) Bleier Roger D. (Houston TX) Brinkley H. N. (Houston TX), Oil based synthetic hydrocarbon drilling fluid.
Zelenev, Andrei; Champagne, Lakia M.; Zhou, Bill; Lett, Nathan L.; Dismuke, Keith Ingram; Penny, Glenn S., Compositions and methods for enhancement of production of liquid and gaseous hydrocarbons.
Zelenev, Andrei; Champagne, Lakia M.; Zhou, Bill; Lett, Nathan L.; Dismuke, Keith Ingram; Penny, Glenn S., Compositions and methods for enhancement of production of liquid and gaseous hydrocarbons.
Collins, Natalia; Nzeadibe, Kingsley; Almond, Stephen W.; Thaemlitz, Carl, Environmentally friendly low temperature breaker systems and related methods.
Hill, Randal M.; Champagne, Lakia M.; Lett, Nathan L.; Dismuke, Keith Ingram; Germack, David; Mast, Nicole; Soeung, Melinda, Methods and compositions for stimulating the production of hydrocarbons from subterranean formations.
Hill, Randal M.; Champagne, Lakia M.; Lett, Nathan L.; Dismuke, Keith Ingram; Germack, David; Mast, Nicole; Soeung, Melinda, Methods and compositions for stimulating the production of hydrocarbons from subterranean formations.
Hill, Randal M.; Champagne, Lakia M.; Lett, Nathan L.; Green, Maria Elizabeth, Methods and compositions for stimulating the production of hydrocarbons from subterranean formations.
Hill, Randal M.; Champagne, Lakia M.; Lett, Nathan L.; Green, Maria Elizabeth; Saboowala, Hasnain, Methods and compositions for stimulating the production of hydrocarbons from subterranean formations.
Hill, Randal M.; Champagne, Lakia M.; Lett, Nathan L.; Green, Maria Elizabeth; Saboowala, Hasnain, Methods and compositions for stimulating the production of hydrocarbons from subterranean formations.
Dismuke, Keith Ingram; Hill, Randal M.; Zelenev, Andrei; Silas, James; Germack, David; Champagne, Lakia M.; Hammond, Charles Earl; Pursley, John T.; Penny, Glenn S.; Bryan, Michael A.; Green, Maria Elizabeth; Smith-Gonzalez, Monica; Soeung, Melinda; Saboowala, Hasnain; Fursdon-Welsh, Angus; Lett, Nathan L.; Mast, Nicole; Hughes, Joby, Methods and compositions for use in oil and/or gas wells.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.