NO301902B1 - Geldannende vandig blanding, og fremgangsmåte for å redusere permeabiliteten av et petroleumsreservoar - Google Patents

Geldannende vandig blanding, og fremgangsmåte for å redusere permeabiliteten av et petroleumsreservoar Download PDF

Info

Publication number: NO301902B1
Authority: NO; Norway
Prior art keywords: mixture; gel; stated; water; forming
Prior art date: 1991-03-28

Application number

NO921052A

Other languages

English (en)

Norwegian (no)

Other versions

NO921052L (no

NO921052D0 (no

Inventor

Thomas Paul Lockhart

Paola Albonico

Original Assignee

Eniricerche Spa

Agip Spa

Priority date (The priority date 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 date listed.)

1991-03-28

Filing date

1992-03-18

Publication date

1997-12-22

1992-03-18 Application filed by Eniricerche Spa, Agip Spa filed Critical Eniricerche Spa

1992-03-18 Publication of NO921052D0 publication Critical patent/NO921052D0/no

1992-09-29 Publication of NO921052L publication Critical patent/NO921052L/no

1997-12-22 Publication of NO301902B1 publication Critical patent/NO301902B1/no

Links

239000000203 mixture Substances 0.000 title claims description 62
230000035699 permeability Effects 0.000 title claims description 26
239000003208 petroleum Substances 0.000 title claims description 18
238000000034 method Methods 0.000 title claims description 13
YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims description 44
FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 22
229960004889 salicylic acid Drugs 0.000 claims description 22
239000003446 ligand Substances 0.000 claims description 17
150000002500 ions Chemical class 0.000 claims description 15
229920001577 copolymer Polymers 0.000 claims description 14
UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 12
HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 11
229920000620 organic polymer Polymers 0.000 claims description 10
229920000642 polymer Polymers 0.000 claims description 10
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
238000004132 cross linking Methods 0.000 claims description 8
230000003111 delayed effect Effects 0.000 claims description 7
WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 claims description 6
XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 6
229920002401 polyacrylamide Polymers 0.000 claims description 6
150000003839 salts Chemical class 0.000 claims description 6
FWFUWXVFYKCSQA-UHFFFAOYSA-M sodium;2-methyl-2-(prop-2-enoylamino)propane-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)CC(C)(C)NC(=O)C=C FWFUWXVFYKCSQA-UHFFFAOYSA-M 0.000 claims description 6
125000003368 amide group Chemical group 0.000 claims description 5
125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 4
238000001879 gelation Methods 0.000 claims description 4
239000000178 monomer Substances 0.000 claims description 4
NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
239000013505 freshwater Substances 0.000 claims description 2
229920001519 homopolymer Polymers 0.000 claims description 2
FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 claims description 2
229920001897 terpolymer Polymers 0.000 claims description 2
229920003169 water-soluble polymer Polymers 0.000 claims description 2
230000003247 decreasing effect Effects 0.000 claims 1
239000011651 chromium Substances 0.000 description 37
239000000499 gel Substances 0.000 description 14
239000000243 solution Substances 0.000 description 12
230000015572 biosynthetic process Effects 0.000 description 11
239000007864 aqueous solution Substances 0.000 description 9
229960001860 salicylate Drugs 0.000 description 9
YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 description 9
239000003431 cross linking reagent Substances 0.000 description 8
QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
239000003340 retarding agent Substances 0.000 description 6
238000000605 extraction Methods 0.000 description 5
-1 aliphatic monocarboxylic acids Chemical class 0.000 description 4
238000002347 injection Methods 0.000 description 4
239000007924 injection Substances 0.000 description 4
229910021645 metal ion Inorganic materials 0.000 description 4
239000003381 stabilizer Substances 0.000 description 4
230000008901 benefit Effects 0.000 description 3
239000012530 fluid Substances 0.000 description 3
238000003756 stirring Methods 0.000 description 3
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
ABBQHOQBGMUPJH-UHFFFAOYSA-M Sodium salicylate Chemical compound [Na+].OC1=CC=CC=C1C([O-])=O ABBQHOQBGMUPJH-UHFFFAOYSA-M 0.000 description 2
229920006322 acrylamide copolymer Polymers 0.000 description 2
238000004519 manufacturing process Methods 0.000 description 2
238000002156 mixing Methods 0.000 description 2
239000013535 sea water Substances 0.000 description 2
229960004025 sodium salicylate Drugs 0.000 description 2
238000003786 synthesis reaction Methods 0.000 description 2
SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
229910002651 NO3 Inorganic materials 0.000 description 1
NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
239000002253 acid Substances 0.000 description 1
125000001931 aliphatic group Chemical group 0.000 description 1
229940061720 alpha hydroxy acid Drugs 0.000 description 1
150000001280 alpha hydroxy acids Chemical class 0.000 description 1
150000001371 alpha-amino acids Chemical class 0.000 description 1
235000008206 alpha-amino acids Nutrition 0.000 description 1
239000000908 ammonium hydroxide Substances 0.000 description 1
229910052799 carbon Inorganic materials 0.000 description 1
239000001569 carbon dioxide Substances 0.000 description 1
229910002092 carbon dioxide Inorganic materials 0.000 description 1
230000021523 carboxylation Effects 0.000 description 1
238000006473 carboxylation reaction Methods 0.000 description 1
150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
238000005119 centrifugation Methods 0.000 description 1
239000003795 chemical substances by application Substances 0.000 description 1
239000000460 chlorine Substances 0.000 description 1
229910052801 chlorine Inorganic materials 0.000 description 1
229910052804 chromium Inorganic materials 0.000 description 1
229910000423 chromium oxide Inorganic materials 0.000 description 1
VQWFNAGFNGABOH-UHFFFAOYSA-K chromium(iii) hydroxide Chemical compound [OH-].[OH-].[OH-].[Cr+3] VQWFNAGFNGABOH-UHFFFAOYSA-K 0.000 description 1
230000001934 delay Effects 0.000 description 1
238000004090 dissolution Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
238000000921 elemental analysis Methods 0.000 description 1
238000011049 filling Methods 0.000 description 1
238000011065 in-situ storage Methods 0.000 description 1
150000007529 inorganic bases Chemical class 0.000 description 1
229910001410 inorganic ion Inorganic materials 0.000 description 1
150000007522 mineralic acids Chemical class 0.000 description 1
230000004048 modification Effects 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000007935 neutral effect Effects 0.000 description 1
239000013110 organic ligand Substances 0.000 description 1
238000002360 preparation method Methods 0.000 description 1
239000011435 rock Substances 0.000 description 1
239000003352 sequestering agent Substances 0.000 description 1
MKAXISKDFRQLBH-UHFFFAOYSA-M sodium;2-methylpropane-1-sulfonate Chemical compound [Na+].CC(C)CS([O-])(=O)=O MKAXISKDFRQLBH-UHFFFAOYSA-M 0.000 description 1
238000005406 washing Methods 0.000 description 1

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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/887—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
- 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
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/512—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S507/00—Earth boring, well treating, and oil field chemistry
- Y10S507/935—Enhanced oil recovery

Landscapes

Chemical & Material Sciences (AREA)
General Life Sciences & Earth Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Organic Chemistry (AREA)
Compositions Of Macromolecular Compounds (AREA)
Cosmetics (AREA)
Colloid Chemistry (AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Processes Of Treating Macromolecular Substances (AREA)
Physical Or Chemical Processes And Apparatus (AREA)
Agricultural Chemicals And Associated Chemicals (AREA)

NO921052A 1991-03-28 1992-03-18 Geldannende vandig blanding, og fremgangsmåte for å redusere permeabiliteten av et petroleumsreservoar NO301902B1 (no)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
ITMI910857A IT1245382B (it)	1991-03-28	1991-03-28	Composizione acquosa gelificabile utile per modificare la permeabilita' in un giacimento petrolifero

Publications (3)

Publication Number	Publication Date
NO921052D0 NO921052D0 (no)	1992-03-18
NO921052L NO921052L (no)	1992-09-29
NO301902B1 true NO301902B1 (no)	1997-12-22

Family

ID=11359323

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO921052A NO301902B1 (no)	1991-03-28	1992-03-18	Geldannende vandig blanding, og fremgangsmåte for å redusere permeabiliteten av et petroleumsreservoar

Country Status (10)

Country	Link
US (1)	US5219475A (fr)
EP (1)	EP0506192B1 (fr)
JP (1)	JPH05125353A (fr)
BR (1)	BR9201087A (fr)
CA (1)	CA2063876C (fr)
DK (1)	DK0506192T3 (fr)
ES (1)	ES2072690T3 (fr)
IT (1)	IT1245382B (fr)
MX (1)	MX9201403A (fr)
NO (1)	NO301902B1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5335733A (en) *	1992-08-31	1994-08-09	Union Oil Company Of California	Method for delaying gelation of a gelable polymer composition injected into a subterranean formation
US5421411A (en) *	1994-01-03	1995-06-06	Marathon Oil Company	Process for reducing permeability in a subterranean hydrocarbon-bearing formation utilizing a gelation solution having a controlled gelation rate
US5431226A (en) *	1994-01-03	1995-07-11	Marathan Oil Company	Process for reducing permeability in a high-temperature subterranean hydrocarbon-bearing formation utilizing a decarboxylated crosslinking agent
US5415229A (en) *	1994-01-03	1995-05-16	Marathon Oil Company	Hydrocarbon recovery process utilizing a gel prepared from a polymer and a preformed crosslinking agent
US6432331B1 (en)	1997-04-01	2002-08-13	Marathon Oil Company	Tank bottom restoration process
US5842519A (en) *	1997-05-21	1998-12-01	Marathon Oil Company	Process for reducing hydrocarbon leakage from a subterranean storage cavern
GB2325478A (en) *	1997-05-24	1998-11-25	Sofitech Nv	Emulsion for well and formation treatment
JP2885238B1 (ja)	1998-03-13	1999-04-19	東洋インキ製造株式会社	静電荷像現像用トナー、静電荷像現像用トナーに用いる荷電制御剤およびその製造方法
US5947644A (en) *	1998-04-03	1999-09-07	Marathon Oil Company	Construction of a fluid impermeable subterranean barrier wall
US6189615B1 (en)	1998-12-15	2001-02-20	Marathon Oil Company	Application of a stabilized polymer gel to an alkaline treatment region for improved hydrocarbon recovery
US6025304A (en) *	1998-12-15	2000-02-15	Marathon Oil Company	Permeability or fluid mobility reduction treatment for a hydrocarbon-bearing formation using a dual molecular weight polymer gel
US6166103A (en) *	1998-12-21	2000-12-26	Atlantic Richfield Company	Aqueous gelable compositions with delayed gelling times
US6346600B1 (en)	1999-04-22	2002-02-12	Nippon Shokubai Co., Ltd.	Vinylpyrrolidone polymer and its stabilization and preservation processes
EP1739123B1 (fr) *	2005-06-28	2014-03-26	Halliburton Energy Services, Inc.	Compositions de polymères réticulables
US20090305914A1 (en) *	2008-05-07	2009-12-10	Leiming Li	Phosphorus-Free Gelled Hydrocarbon Compositions and Method for Use Thereof
US8975217B2 (en) *	2009-06-23	2015-03-10	Halliburton Energy Services, Inc.	Methods for treating a well with a cross-linked water-soluble polymer-complexed metal cation network and an aromatic compound capable of forming a chelating agent to uncross-link the polymer
US8653011B2 (en) *	2009-11-12	2014-02-18	Schlumberger Technology Corporation	Gelled hydrocarbon system and method with dual-function viscosifier/breaker additive

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3536137A (en) *	1962-06-06	1970-10-27	Continental Oil Co	Use of a coupling agent in consolidating incompetent subterranean formations with a resinous composition
US3267083A (en) *	1963-06-07	1966-08-16	Union Carbide Corp	Reprocessable crosslinked polymeric compositions
GB1277204A (en) *	1968-08-15	1972-06-07	Secr Defence	Improvements in epoxide reactions
BE790993A (fr) *	1971-11-09	1973-05-07	Monsanto Chemicals	Matieres polymeres a liaisons de reticulation thermiquement reversible
FR2489294A1 (fr) *	1980-08-27	1982-03-05	Rhone Poulenc Ind	Nouveaux agents sequestrants supportes, leur procede de preparation et leur application a la synthese organique et a l'extraction des metaux
US4552217A (en) *	1984-07-09	1985-11-12	Phillips Petroleum Company	Microbiocidal anionic sequesterants with polyvalent metal cations for permeability correction process
IT1216740B (it) *	1988-02-05	1990-03-08	Agip S P A Eniricerche S P A	Procedimento per rimuovere gelpolimerici in un pozzo petrolifero.
US4934456A (en) *	1989-03-29	1990-06-19	Phillips Petroleum Company	Method for altering high temperature subterranean formation permeability
IT1229217B (it) *	1989-03-31	1991-07-26	Eniricerche S P A Agip S P A	Composizione acquosa gelificabile e suo impiego nei procedimenti di recupero assistito del petrolio.

1991
- 1991-03-28 IT ITMI910857A patent/IT1245382B/it active IP Right Grant
1992
- 1992-03-18 NO NO921052A patent/NO301902B1/no unknown
- 1992-03-19 US US07/853,815 patent/US5219475A/en not_active Expired - Lifetime
- 1992-03-21 DK DK92200821.4T patent/DK0506192T3/da active
- 1992-03-21 ES ES92200821T patent/ES2072690T3/es not_active Expired - Lifetime
- 1992-03-21 EP EP92200821A patent/EP0506192B1/fr not_active Expired - Lifetime
- 1992-03-24 CA CA002063876A patent/CA2063876C/fr not_active Expired - Fee Related
- 1992-03-27 MX MX9201403A patent/MX9201403A/es active IP Right Grant
- 1992-03-27 BR BR929201087A patent/BR9201087A/pt not_active IP Right Cessation
- 1992-03-27 JP JP4100187A patent/JPH05125353A/ja not_active Withdrawn

Also Published As

Publication number	Publication date
US5219475A (en)	1993-06-15
MX9201403A (es)	1992-09-01
IT1245382B (it)	1994-09-20
CA2063876C (fr)	2003-05-13
DK0506192T3 (da)	1995-08-07
ITMI910857A0 (it)	1991-03-28
EP0506192A1 (fr)	1992-09-30
JPH05125353A (ja)	1993-05-21
NO921052L (no)	1992-09-29
ES2072690T3 (es)	1995-07-16
ITMI910857A1 (it)	1992-09-28
BR9201087A (pt)	1992-11-24
EP0506192B1 (fr)	1995-05-17
CA2063876A1 (fr)	1992-09-29
NO921052D0 (no)	1992-03-18

Publication	Publication Date	Title
NO301902B1 (no)	1997-12-22	Geldannende vandig blanding, og fremgangsmåte for å redusere permeabiliteten av et petroleumsreservoar
EP0506191B2 (fr)	1998-08-12	Composition aqueuse gélifiable à temps de gélification retardé
EP0390282B1 (fr)	1993-05-12	Composition aqueuse gelifiable et son utilisation dans la récupération modifiée de pétrole
CA2013467C (fr)	1998-08-11	Composition aqueuse gelifiable et son utilisation pour la recuperation assistee du petrole
US5219476A (en)	1993-06-15	Gellable aqueous composition and its use in enhanced petroleum recovery
US5478802A (en)	1995-12-26	Gelling compositions useful for oil field applications
US5642783A (en)	1997-07-01	Process for treating oil-bearing formation
CA1254025A (fr)	1989-05-16	Sequestrants anioniques microbicides contenant des cations metalliques polyvalents pour un procede de correction de la permeabilite
AU614101B2 (en)	1991-08-22	Method of removing polymer gels from a petroleum reservoir
EP0390137B1 (fr)	1992-05-27	Changement de perméabilité de formations souterraines à haute température
EP0566028B1 (fr)	1996-05-22	Compositions gélifiables de polymères solubles dans l'eau
NO303146B1 (no)	1998-06-02	Vandig geldannende blanding og anvendelse derav
CA2236734A1 (fr)	1998-11-07	Compositions polymeriques et methode d'emploi pour les applications dans les puits a basse temperature
CN105074123A (zh)	2015-11-18	用于延缓胶凝化的纳米凝胶
NO860789L (no)	1986-09-12	Permeabilitetskorreksjonsfluid basert paa propionatsekvestrering av krom (iii) og anvendelse av dette i underjordiske formasjoner.
NO860788L (no)	1986-09-12	Parmeabilitetskorreksjonsfluid basert paa sulfatfri propionatsekvestrering av krom (iii) og anvendelse av dette i underjordiske formasjoner.
EP0390281B1 (fr)	1992-12-02	Composition aqueuse tampon gélifiable et son utilisation pour la récupération modifiée de pétrole
US5789350A (en)	1998-08-04	Compositions and processes for treating hydrocarbon-bearing formations
NO179296B (no)	1996-06-03	Fremgangsmåte og vandig geldannende polymer opplösning for å nedsette permeabiliteten av en höypermeabilitetssone i et oljereservoar
US4678032A (en)	1987-07-07	Polymer and method for permeability profile control under severe reservoir conditions
Cai et al.	2001	Slow gelation of titanium (IV) with partially hydrolyzed polyacrylamide. Crosslinking reaction and gel properties
JPH0112538B2 (fr)	1989-03-01
NO301248B1 (no)	1997-09-29	Fremgangsmåte og sammensetning for selektiv reduksjon av vannpermeabiliteten i varme og saltholdige hydrokarbon-reservoarer
EP0557146A1 (fr)	1993-08-25	Compositions à base de gels et leur utilisation pour la réduction selective de la perméabilité à l'eau dans les reservoirs chauds et sales
SU443042A1 (ru)	1974-09-15	Способ получени водорастворимого сополимера