CA2178364A1 - Maleimide Copolymers and Method for Inhibiting Hydrate Formation - Google Patents
Maleimide Copolymers and Method for Inhibiting Hydrate FormationInfo
- Publication number
- CA2178364A1 CA2178364A1 CA 2178364 CA2178364A CA2178364A1 CA 2178364 A1 CA2178364 A1 CA 2178364A1 CA 2178364 CA2178364 CA 2178364 CA 2178364 A CA2178364 A CA 2178364A CA 2178364 A1 CA2178364 A1 CA 2178364A1
- Authority
- CA
- Canada
- Prior art keywords
- maleimide copolymers
- maleimide
- copolymers
- inhibiting
- hydrate
- 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
- 229920001577 copolymer Polymers 0.000 title abstract 10
- 230000015572 biosynthetic process Effects 0.000 title abstract 3
- 230000002401 inhibitory effect Effects 0.000 title abstract 3
- 239000012530 fluid Substances 0.000 abstract 4
- 239000003208 petroleum Substances 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 abstract 2
- 238000005054 agglomeration Methods 0.000 abstract 1
- 230000002776 aggregation Effects 0.000 abstract 1
- 125000003342 alkenyl group Chemical group 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- 239000000470 constituent Substances 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- UYMKPFRHYYNDTL-UHFFFAOYSA-N ethenamine Chemical compound NC=C UYMKPFRHYYNDTL-UHFFFAOYSA-N 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 150000004677 hydrates Chemical class 0.000 abstract 1
- 239000003112 inhibitor Substances 0.000 abstract 1
- 125000005439 maleimidyl group Chemical group C1(C=CC(N1*)=O)=O 0.000 abstract 1
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 125000004433 nitrogen atom Chemical group N* 0.000 abstract 1
- ODUCDPQEXGNKDN-UHFFFAOYSA-N nitroxyl Chemical compound O=N ODUCDPQEXGNKDN-UHFFFAOYSA-N 0.000 abstract 1
- 230000006911 nucleation Effects 0.000 abstract 1
- 238000010899 nucleation Methods 0.000 abstract 1
- 125000004430 oxygen atom Chemical group O* 0.000 abstract 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract 1
- -1 vinyl lactam Chemical class 0.000 abstract 1
- 229920002554 vinyl polymer Polymers 0.000 abstract 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Novel maleimide copolymers have at least two monomeric units, a maleimide unit and a vinyl unit having a pendant group, the pendant group having two to twenty-one carbon atoms, at least one nitrogen atom and at least one oxygen atom. The copolymer has an average molecular weight between about 1,000 and about 6,000,000. Preferred maleimide copolymers include acrylamide/maleimide copolymers, N-vinyl amide/maleimide copolymers, vinyl lactam/maleimide copolymers, alkenyl cyclic imino ether/maleimide copolymers, and acryloylamide/maleimide copolymers. The substantially water soluble maleimide copolymers are useful for inhibiting the formation of clathrate hydrates in a fluid having hydrate-forming constituents by reducing the rate of nucleation, growth, and/or agglomeration of gas hydrate crystals in a petroleum fluid stream, thereby inhibiting the formation of a hydrate blockage in the pipe conveying the petroleum fluid stream. The inhibitor can be used conveniently at low concentrations, for example in the range of from about 0.01% to about 5% by weight of the water present in the oil or gas stream, to effectively treat a petroleum fluid having a water phase.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7195P | 1995-06-08 | 1995-06-08 | |
| US60/000,071 | 1995-06-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2178364A1 true CA2178364A1 (en) | 1996-12-09 |
| CA2178364C CA2178364C (en) | 2000-09-26 |
Family
ID=21689780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2178364 Expired - Fee Related CA2178364C (en) | 1995-06-08 | 1996-06-06 | Maleimide copolymers and method for inhibiting hydrate formation |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2178364C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6319971B1 (en) | 1997-05-22 | 2001-11-20 | Rf-Procom A/S | Composition for controlling clathrate hydrates and a method for controlling clathrate hydrate formation |
-
1996
- 1996-06-06 CA CA 2178364 patent/CA2178364C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6319971B1 (en) | 1997-05-22 | 2001-11-20 | Rf-Procom A/S | Composition for controlling clathrate hydrates and a method for controlling clathrate hydrate formation |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2178364C (en) | 2000-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2178366A1 (en) | Polymers and method for inhibiting hydrate formation | |
| AU675999B2 (en) | Method for controlling clathrate hydrates in fluid systems | |
| CA2197800A1 (en) | A Method for Inhibiting Hydrate Formation | |
| CA2221133A1 (en) | Method for inhibiting hydrate formation | |
| US5936040A (en) | Method for inhibiting hydrate formation using maleimide copolymers | |
| US5744665A (en) | Maleimide copolymers and method for inhibiting hydrate formation | |
| CA2191200A1 (en) | Additives and method for controlling clathrate hydrates in fluid systems | |
| US6093862A (en) | Process for slowing the growth and/or agglomeration and possibly retarding the formation of hydrates in a production effluent | |
| AU675227B2 (en) | A method for inhibiting gas hydrate formation | |
| CA2272654C (en) | Additives for inhibiting gas hydrate formation | |
| US6177497B1 (en) | Additives for inhibiting gas hydrate formation | |
| AU709772B2 (en) | Hydrate inhibition | |
| EP0985725A3 (en) | Polyalkylene polysuccinimides and post-treated derivatives thereof | |
| SG126708A1 (en) | Polymeric dispersants prepared from copolymers of low molecular weight polyisobutene and unsaturatedacidic reagent | |
| MXPA97003503A (en) | Procedure to inhibit or delay formation the agglomeration of hydrates in a deflection effluent | |
| TW200630394A (en) | Polymeric materials | |
| AU1326000A (en) | A method for preventing or retarding the formation of gas hydrates | |
| WO1996038492A1 (en) | Clathrate hydrate inhibitor and method of inhibiting the formation of clathrate hydrates using it | |
| CA2178364A1 (en) | Maleimide Copolymers and Method for Inhibiting Hydrate Formation | |
| NO980239L (en) | Water-soluble liquids for use in metalworking | |
| ATE294197T1 (en) | METHOD FOR AVOIDING OR RESTRAINING GAS HYDRATE FORMATION | |
| EP0926222A3 (en) | Fuel compositions containing polyamines of polyalkyl aromatic esters | |
| WO2004042190A3 (en) | Vinyllactam copolymers used as gas hydrate inhibitors | |
| JP3810258B2 (en) | Gas hydrate production control agent and gas hydrate production control method | |
| CA2178367A1 (en) | Method for inhibiting hydrate formation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |