CA2660097A1 - Well treatment composition for increasing lifetime of scale inhibiting treatments - Google Patents
Well treatment composition for increasing lifetime of scale inhibiting treatments Download PDFInfo
- Publication number
- CA2660097A1 CA2660097A1 CA002660097A CA2660097A CA2660097A1 CA 2660097 A1 CA2660097 A1 CA 2660097A1 CA 002660097 A CA002660097 A CA 002660097A CA 2660097 A CA2660097 A CA 2660097A CA 2660097 A1 CA2660097 A1 CA 2660097A1
- Authority
- CA
- Canada
- Prior art keywords
- scale inhibitor
- molecular weight
- polymer
- ammonium salt
- diallyl ammonium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/528—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates
Abstract
The present invention provides a method for increasing the retention of a scale inhibitor within a hydrocarbon producing system (e.g. a subterranean formation), said method comprising contacting said system with a polymer formed from a diallyl ammonium salt and with said scale inhibitor, wherein said polymer formed from a diallyl ammonium salt has a molecular weight of greater than 50,000 (e.g. a molecular weight of 55,000 to 2,000,000).
Claims (16)
1. A method for increasing the retention of a scale inhibitor within a hydrocarbon producing system (e.g. a subterranean formation), said method comprising contacting said system with a polymer formed from a diallyl ammonium salt and with said scale inhibitor, wherein said polymer formed from a diallyl ammonium salt has a molecular weight of greater than 50,000 (e.g. a molecular weight of 55,000 to 2,000,000).
2. A method as claimed in claim 1, wherein said method comprises squeeze treating said system with said polymer and said scale inhibitor as hereinbefore defined.
3. A method as claimed in claim 1 or claim 2, wherein said polymer is formed from monomers of formula (I):
(wherein R1 and R2 are each independently hydrogen or optionally substituted organic radicals having from 1 to 20 carbon atoms, preferably 1 to 12 carbon atoms, e.g. 1 to 6 carbon atoms;
each R is independently selected from hydrogen and organic radicals having from 1 to 20 carbon atoms, e.g. 1 to 6 carbon atoms; and X is a counterion which may optionally be covalently bonded to either R1 or R1).
(wherein R1 and R2 are each independently hydrogen or optionally substituted organic radicals having from 1 to 20 carbon atoms, preferably 1 to 12 carbon atoms, e.g. 1 to 6 carbon atoms;
each R is independently selected from hydrogen and organic radicals having from 1 to 20 carbon atoms, e.g. 1 to 6 carbon atoms; and X is a counterion which may optionally be covalently bonded to either R1 or R1).
4. A method as claimed in any preceding claim, wherein said polymer is a homopolymer formed from diallyl dimethyl ammonium chloride.
5. A method as claimed in any preceding claim, wherein said scale inhibitor comprises at least one anionic group, e.g. a carboxylate group.
6. A method as claimed in any preceding claim, wherein said scale inhibitor is polymeric.
7. A method as claimed in claim 6, wherein said scale inhibitor is formed monomers of formula (IV):
(wherein R3 is -CO2Z, -SO3Z, -PO3Z2 or an alkyl or aryl group (e.g. a C1-10 alkyl or aryl group) substituted with at least one (e.g. one) -CO2Z, -SO3Z or -PO3Z2 group in which Z is a hydrogen atom or a univalent metal atom;
R4, R5 and R6 are each independently hydrogen, an optionally substituted alkyl or aryl group having from 1 to 6 carbon atoms or a group R3 as hereinbefore defined).
(wherein R3 is -CO2Z, -SO3Z, -PO3Z2 or an alkyl or aryl group (e.g. a C1-10 alkyl or aryl group) substituted with at least one (e.g. one) -CO2Z, -SO3Z or -PO3Z2 group in which Z is a hydrogen atom or a univalent metal atom;
R4, R5 and R6 are each independently hydrogen, an optionally substituted alkyl or aryl group having from 1 to 6 carbon atoms or a group R3 as hereinbefore defined).
8. A method as claimed in any preceding claim, wherein said polymer is applied as a dispersion or solution in a liquid carrier.
9. A method as claimed in any preceding claim, wherein said scale inhibitor is applied as a dispersion or solution in a liquid carrier.
10. A method as claimed in any preceding claim, wherein said polymer and said scale inhibitor form a solid (e.g. gel) within the hydrocarbon producing system.
11. A method as claimed in preceding claim, wherein said polymer is applied as a solution having a pH of 1 to 6, preferably 3 to 4.
12. A method as claimed in any preceding claim, wherein said scale inhibitor is applied as a solution having a pH of 1 to 3.
13. Use of a polymer formed from a diallyl ammonium salt having a molecular weight of greater than 50,000 (e.g. a molecular weight of 55,000 to 2,000,000) to increase the retention of a scale inhibitor in a hydrocarbon producing system (e.g. a subterranean formation).
14. Use of a polymer formed from a diallyl ammonium salt having a molecular weight of greater than 50,000 (e.g. a molecular weight of 55,000 to 2,000,000) in the manufacture of a treatment composition comprising said diallyl ammonium salt and optionally a scale inhibitor for increasing the retention of a scale inhibitor in a hydrocarbon producing system (e.g. a subterranean formation).
15. A hydrocarbon well treatment composition comprising a carrier liquid, a homopolymer formed from a diallyl ammonium salt having a molecular weight of greater than 50,000 (e.g. a molecular weight of 55,000 to 2,000,000) and a scale inhibitor, wherein the concentration of said polymer is 1 to 10 wt%.
16. A kit for increasing the retention of a scale inhibitor within a hydrocarbon producing system (e.g. a subterranean formation), said kit comprising a polymer formed from diallyl ammonium salt having a molecular weight of greater than 50,000 (e.g. a molecular weight of 55,000 to 2,000,000) and separately a scale inhibitor.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0616469.3A GB0616469D0 (en) | 2006-08-17 | 2006-08-17 | Well treatment |
GB0616469.3 | 2006-08-17 | ||
GB0624964.3 | 2006-12-14 | ||
GBGB0624964.3A GB0624964D0 (en) | 2006-08-17 | 2006-12-14 | Well treatment |
PCT/GB2007/003131 WO2008020220A1 (en) | 2006-08-17 | 2007-08-16 | Well treatment |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2660097A1 true CA2660097A1 (en) | 2008-02-21 |
CA2660097C CA2660097C (en) | 2012-07-10 |
Family
ID=37081231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2660097A Active CA2660097C (en) | 2006-08-17 | 2007-08-16 | Well treatment composition for increasing lifetime of scale inhibiting treatments |
Country Status (10)
Country | Link |
---|---|
US (1) | US8101554B2 (en) |
EP (1) | EP2052050B1 (en) |
AT (1) | ATE491768T1 (en) |
AU (1) | AU2007285556C1 (en) |
CA (1) | CA2660097C (en) |
DE (1) | DE602007011287D1 (en) |
DK (1) | DK2052050T3 (en) |
GB (2) | GB0616469D0 (en) |
NO (1) | NO341276B1 (en) |
WO (1) | WO2008020220A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
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GB0616469D0 (en) | 2006-08-17 | 2006-09-27 | Champion Technologies Ltd | Well treatment |
CA2771101C (en) | 2009-08-20 | 2018-10-23 | Statoil Asa | Well treatment |
GB201116530D0 (en) | 2011-09-26 | 2011-11-09 | Champion Technologies Ltd | Method |
JP6028045B2 (en) | 2012-02-29 | 2016-11-16 | コスカン、ラリー ピー.KOSKAN, Larry P. | System and method for inhibiting scale formation in oil wells |
GB201210034D0 (en) | 2012-06-07 | 2012-07-18 | Univ Leeds | A method of inhibiting scale in a geological formation |
FR3003868A1 (en) * | 2013-03-27 | 2014-10-03 | Poweltec | ANTI-DEPOSITION TREATMENT OF UNDERGROUND FORMATIONS BY DEPOSITION INHIBITOR INJECTION |
US9475900B2 (en) * | 2013-12-11 | 2016-10-25 | The Nippon Synthetic Chemical Industry Co., Ltd. | Drilling fluid additive |
US9702225B2 (en) | 2015-05-13 | 2017-07-11 | Halliburton Energy Services, Inc. | Surface modification agent to prolong scale inhibitor lifetime |
GB2580860A (en) * | 2018-09-25 | 2020-08-05 | Graham Gordon | Method for enhancing scale inhibition within a hydrocarbon production system |
EP3902976A4 (en) * | 2018-12-28 | 2022-09-07 | Kemira Oyj | Methods and compositions for treatment of scale |
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-
2006
- 2006-08-17 GB GBGB0616469.3A patent/GB0616469D0/en not_active Ceased
- 2006-12-14 GB GBGB0624964.3A patent/GB0624964D0/en not_active Ceased
-
2007
- 2007-08-16 US US12/377,331 patent/US8101554B2/en active Active
- 2007-08-16 AT AT07789245T patent/ATE491768T1/en not_active IP Right Cessation
- 2007-08-16 AU AU2007285556A patent/AU2007285556C1/en active Active
- 2007-08-16 EP EP07789245A patent/EP2052050B1/en active Active
- 2007-08-16 WO PCT/GB2007/003131 patent/WO2008020220A1/en active Application Filing
- 2007-08-16 DK DK07789245.3T patent/DK2052050T3/en active
- 2007-08-16 CA CA2660097A patent/CA2660097C/en active Active
- 2007-08-16 DE DE602007011287T patent/DE602007011287D1/en active Active
-
2009
- 2009-03-13 NO NO20091114A patent/NO341276B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
NO20091114L (en) | 2009-03-13 |
DE602007011287D1 (en) | 2011-01-27 |
NO341276B1 (en) | 2017-10-02 |
GB0616469D0 (en) | 2006-09-27 |
AU2007285556C1 (en) | 2013-01-31 |
ATE491768T1 (en) | 2011-01-15 |
US20100273682A1 (en) | 2010-10-28 |
DK2052050T3 (en) | 2011-04-04 |
AU2007285556B2 (en) | 2012-08-09 |
EP2052050A1 (en) | 2009-04-29 |
WO2008020220A1 (en) | 2008-02-21 |
US8101554B2 (en) | 2012-01-24 |
CA2660097C (en) | 2012-07-10 |
EP2052050B1 (en) | 2010-12-15 |
AU2007285556A1 (en) | 2008-02-21 |
GB0624964D0 (en) | 2007-01-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request |