SK132294A3 - Microcapsules for drill hole at crude oil desalting - Google Patents
Microcapsules for drill hole at crude oil desalting Download PDFInfo
- Publication number
- SK132294A3 SK132294A3 SK1322-94A SK132294A SK132294A3 SK 132294 A3 SK132294 A3 SK 132294A3 SK 132294 A SK132294 A SK 132294A SK 132294 A3 SK132294 A3 SK 132294A3
- Authority
- SK
- Slovakia
- Prior art keywords
- microcapsules
- coacervation
- specific gravity
- gelatin
- preferred
- Prior art date
Links
- 239000003094 microcapsule Substances 0.000 title claims abstract description 21
- 239000010779 crude oil Substances 0.000 title 1
- 238000011033 desalting Methods 0.000 title 1
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000000126 substance Substances 0.000 claims abstract description 10
- 150000002736 metal compounds Chemical class 0.000 claims abstract 10
- 238000010348 incorporation Methods 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 16
- 238000005354 coacervation Methods 0.000 claims description 14
- 108010010803 Gelatin Proteins 0.000 claims description 13
- 239000008273 gelatin Substances 0.000 claims description 13
- 229920000159 gelatin Polymers 0.000 claims description 13
- 235000019322 gelatine Nutrition 0.000 claims description 13
- 235000011852 gelatine desserts Nutrition 0.000 claims description 13
- 239000002253 acid Substances 0.000 claims description 12
- 239000002775 capsule Substances 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 239000003129 oil well Substances 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 238000005538 encapsulation Methods 0.000 claims description 4
- 239000000546 pharmaceutical excipient Substances 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 239000007764 o/w emulsion Substances 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims 11
- 239000003795 chemical substances by application Substances 0.000 claims 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 9
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims 7
- 235000010489 acacia gum Nutrition 0.000 claims 6
- 239000008346 aqueous phase Substances 0.000 claims 6
- 244000215068 Acacia senegal Species 0.000 claims 5
- 229920000084 Gum arabic Polymers 0.000 claims 5
- 239000000205 acacia gum Substances 0.000 claims 5
- 238000001816 cooling Methods 0.000 claims 5
- 239000000843 powder Substances 0.000 claims 5
- 239000002245 particle Substances 0.000 claims 4
- 229920000447 polyanionic polymer Polymers 0.000 claims 4
- 239000000725 suspension Substances 0.000 claims 4
- 241000220479 Acacia Species 0.000 claims 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims 3
- 235000010643 Leucaena leucocephala Nutrition 0.000 claims 3
- 238000004132 cross linking Methods 0.000 claims 3
- 239000000499 gel Substances 0.000 claims 3
- 229910052751 metal Inorganic materials 0.000 claims 3
- 239000002184 metal Substances 0.000 claims 3
- 239000012266 salt solution Substances 0.000 claims 3
- 229920000388 Polyphosphate Polymers 0.000 claims 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims 2
- 235000010443 alginic acid Nutrition 0.000 claims 2
- 229920000615 alginic acid Polymers 0.000 claims 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims 2
- 235000010418 carrageenan Nutrition 0.000 claims 2
- 239000000679 carrageenan Substances 0.000 claims 2
- 229920001525 carrageenan Polymers 0.000 claims 2
- 229940113118 carrageenan Drugs 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 claims 2
- 239000003431 cross linking reagent Substances 0.000 claims 2
- 239000008367 deionised water Substances 0.000 claims 2
- 229910021641 deionized water Inorganic materials 0.000 claims 2
- 230000016507 interphase Effects 0.000 claims 2
- 230000003647 oxidation Effects 0.000 claims 2
- 238000007254 oxidation reaction Methods 0.000 claims 2
- 239000001814 pectin Substances 0.000 claims 2
- 235000010987 pectin Nutrition 0.000 claims 2
- 229920001277 pectin Polymers 0.000 claims 2
- 239000001205 polyphosphate Substances 0.000 claims 2
- 235000011176 polyphosphates Nutrition 0.000 claims 2
- 229920001864 tannin Polymers 0.000 claims 2
- 239000001648 tannin Substances 0.000 claims 2
- 235000018553 tannin Nutrition 0.000 claims 2
- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 0.000 claims 2
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims 1
- 229920001817 Agar Polymers 0.000 claims 1
- 102000009027 Albumins Human genes 0.000 claims 1
- 108010088751 Albumins Proteins 0.000 claims 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims 1
- 239000004971 Cross linker Substances 0.000 claims 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 claims 1
- 229920002472 Starch Polymers 0.000 claims 1
- 229920001807 Urea-formaldehyde Polymers 0.000 claims 1
- 239000001785 acacia senegal l. willd gum Substances 0.000 claims 1
- 239000000654 additive Substances 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- 239000008272 agar Substances 0.000 claims 1
- 235000010419 agar Nutrition 0.000 claims 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims 1
- 235000011130 ammonium sulphate Nutrition 0.000 claims 1
- 125000000129 anionic group Chemical group 0.000 claims 1
- 150000001450 anions Chemical group 0.000 claims 1
- 239000001768 carboxy methyl cellulose Substances 0.000 claims 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims 1
- 239000005018 casein Substances 0.000 claims 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 claims 1
- 235000021240 caseins Nutrition 0.000 claims 1
- 239000001913 cellulose Substances 0.000 claims 1
- 229920002678 cellulose Polymers 0.000 claims 1
- 239000008199 coating composition Substances 0.000 claims 1
- 239000000084 colloidal system Substances 0.000 claims 1
- 230000008021 deposition Effects 0.000 claims 1
- 238000004090 dissolution Methods 0.000 claims 1
- 239000000839 emulsion Substances 0.000 claims 1
- 239000010419 fine particle Substances 0.000 claims 1
- 150000004679 hydroxides Chemical class 0.000 claims 1
- 230000006698 induction Effects 0.000 claims 1
- 229910000464 lead oxide Inorganic materials 0.000 claims 1
- HWSZZLVAJGOAAY-UHFFFAOYSA-L lead(II) chloride Chemical compound Cl[Pb]Cl HWSZZLVAJGOAAY-UHFFFAOYSA-L 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 claims 1
- 229920000058 polyacrylate Polymers 0.000 claims 1
- 239000002243 precursor Substances 0.000 claims 1
- 230000035484 reaction time Effects 0.000 claims 1
- 150000004760 silicates Chemical class 0.000 claims 1
- 235000010413 sodium alginate Nutrition 0.000 claims 1
- 239000000661 sodium alginate Substances 0.000 claims 1
- 229940005550 sodium alginate Drugs 0.000 claims 1
- 229910052938 sodium sulfate Inorganic materials 0.000 claims 1
- 235000011152 sodium sulphate Nutrition 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 239000008107 starch Substances 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- 238000010792 warming Methods 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
- 238000009736 wetting Methods 0.000 claims 1
- 239000011787 zinc oxide Substances 0.000 claims 1
- 239000002738 chelating agent Substances 0.000 abstract description 11
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 3
- 239000007903 gelatin capsule Substances 0.000 abstract 1
- 238000000605 extraction Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000002671 adjuvant Substances 0.000 description 3
- -1 2-hydroxypropyl Chemical group 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- MYWUZJCMWCOHBA-VIFPVBQESA-N methamphetamine Chemical compound CN[C@@H](C)CC1=CC=CC=C1 MYWUZJCMWCOHBA-VIFPVBQESA-N 0.000 description 2
- QOXOZONBQWIKDA-UHFFFAOYSA-N 3-hydroxypropyl Chemical group [CH2]CCO QOXOZONBQWIKDA-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 241001139947 Mida Species 0.000 description 1
- 229940123973 Oxygen scavenger Drugs 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000002535 acidifier Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- HJMZMZRCABDKKV-UHFFFAOYSA-N carbonocyanidic acid Chemical compound OC(=O)C#N HJMZMZRCABDKKV-UHFFFAOYSA-N 0.000 description 1
- 125000006297 carbonyl amino group Chemical group [H]N([*:2])C([*:1])=O 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000013265 extended release Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 1
- NBZBKCUXIYYUSX-UHFFFAOYSA-N iminodiacetic acid Chemical class OC(=O)CNCC(O)=O NBZBKCUXIYYUSX-UHFFFAOYSA-N 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
-
- 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
- C09K8/92—Compositions for stimulating production by acting on the underground formation characterised by their form or by the form of their components, e.g. encapsulated material
-
- 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
- C09K8/536—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning characterised by their form or by the form of their components, e.g. encapsulated material
-
- 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
- C09K8/54—Compositions for in situ inhibition of corrosion in boreholes or wells
-
- 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
- Y10S507/902—Controlled release agent
-
- 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
- Y10S507/939—Corrosion inhibitor
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2984—Microcapsule with fluid core [includes liposome]
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Fats And Perfumes (AREA)
- Cosmetics (AREA)
- Medicinal Preparation (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Lubricants (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/878,940 US5922652A (en) | 1992-05-05 | 1992-05-05 | Microencapsulated oil field chemicals |
| PCT/US1993/004108 WO1993022537A1 (en) | 1992-05-05 | 1993-05-03 | Microencapsulated oil field chemicals and process for their use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SK132294A3 true SK132294A3 (en) | 1995-07-11 |
Family
ID=25373127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SK1322-94A SK132294A3 (en) | 1992-05-05 | 1993-05-03 | Microcapsules for drill hole at crude oil desalting |
Country Status (18)
| Country | Link |
|---|---|
| US (2) | US5922652A (ko) |
| EP (1) | EP0639240B1 (ko) |
| JP (1) | JPH07506408A (ko) |
| KR (1) | KR950701406A (ko) |
| AT (1) | ATE149237T1 (ko) |
| AU (1) | AU674850B2 (ko) |
| BR (1) | BR9306321A (ko) |
| CA (1) | CA2134980C (ko) |
| CZ (1) | CZ270394A3 (ko) |
| DE (1) | DE69308297D1 (ko) |
| FI (1) | FI945196A0 (ko) |
| HU (1) | HUT70884A (ko) |
| MY (1) | MY108854A (ko) |
| NO (1) | NO311736B1 (ko) |
| NZ (1) | NZ252502A (ko) |
| RU (1) | RU2111049C1 (ko) |
| SK (1) | SK132294A3 (ko) |
| WO (1) | WO1993022537A1 (ko) |
Families Citing this family (103)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4236145A1 (de) * | 1992-10-27 | 1994-04-28 | Semperlux Gmbh | Digitales 2-Stufen-Spar-EVG |
| DK0656459T3 (da) * | 1993-11-27 | 2001-06-18 | Aea Technology Plc | Fremgangsmåde til behandling af olieboringer |
| DE29600973U1 (de) * | 1996-01-20 | 1996-03-21 | ITW Befestigungssysteme GmbH, 58642 Iserlohn | Befestigungsmittel für hochfeste Verbindung mit einem Untergrund |
| GB9611422D0 (en) * | 1996-05-31 | 1996-08-07 | Bp Exploration Operating | Coated scale inhibitors |
| US6126872A (en) * | 1998-01-27 | 2000-10-03 | Baker Hughes Incorporated | Microencapsulated drag reducing agents |
| US6207620B1 (en) * | 1999-06-04 | 2001-03-27 | Texaco Inc. | Use of encapsulated acid in acid fracturing treatments |
| US6924253B2 (en) * | 2000-04-07 | 2005-08-02 | Bentley J. Palmer | Scale removal |
| US6444316B1 (en) * | 2000-05-05 | 2002-09-03 | Halliburton Energy Services, Inc. | Encapsulated chemicals for use in controlled time release applications and methods |
| AU2001260513A1 (en) * | 2000-06-06 | 2001-12-17 | T R Oil Services Limited | Microcapsule well treatment |
| US7360593B2 (en) * | 2000-07-27 | 2008-04-22 | Vernon George Constien | Product for coating wellbore screens |
| US6394185B1 (en) * | 2000-07-27 | 2002-05-28 | Vernon George Constien | Product and process for coating wellbore screens |
| US6866797B1 (en) | 2000-08-03 | 2005-03-15 | Bj Services Company | Corrosion inhibitors and methods of use |
| WO2002012674A1 (en) * | 2000-08-07 | 2002-02-14 | T R Oil Services Limited | Method for delivering chemicals to an oil or gas well |
| GB0028268D0 (en) | 2000-11-20 | 2001-01-03 | Norske Stats Oljeselskap | Well treatment |
| GB0028269D0 (en) * | 2000-11-20 | 2001-01-03 | Norske Stats Oljeselskap | Well treatment |
| US6767868B2 (en) * | 2001-02-22 | 2004-07-27 | Bj Services Company | Breaker system for fracturing fluids used in fracturing oil bearing formations |
| US6702022B2 (en) * | 2001-06-20 | 2004-03-09 | Gennady V. Kattsyn | Method and device to reduce asphaltene and paraffin accumulations in wells |
| US6841593B2 (en) | 2001-07-05 | 2005-01-11 | Baker Hughes Incorporated | Microencapsulated and macroencapsulated drag reducing agents |
| US6723683B2 (en) | 2001-08-07 | 2004-04-20 | National Starch And Chemical Investment Holding Corporation | Compositions for controlled release |
| US6761220B2 (en) | 2002-02-01 | 2004-07-13 | Halliburton Energy Services, Inc. | Treatment of a well with an encapsulated liquid and process for encapsulating a liquid |
| GB0213599D0 (en) | 2002-06-13 | 2002-07-24 | Bp Exploration Operating | Process |
| US7994103B2 (en) * | 2002-08-20 | 2011-08-09 | Baker Hughes Incorporated | Method for controlled placement of chemicals and composition useful for practicing same |
| US7135440B2 (en) * | 2002-08-20 | 2006-11-14 | Baker Hughes Incorporated | Method for controlled placement of oilfield chemicals and composition useful for practicing same |
| US7473467B2 (en) * | 2002-09-03 | 2009-01-06 | Firmenich Sa | Preparation of microcapsules |
| AU2002361719A1 (en) * | 2002-09-13 | 2004-04-30 | Kkg Group Llc | Reducing paraffin, asphaltene, and hydrate accumulations in wells |
| US20040110877A1 (en) * | 2002-12-06 | 2004-06-10 | Becker Harold L. | Suspension comprising multiple surface active agents for treating oilfield fluids and gases and a method of making and using the same |
| US20050072570A1 (en) * | 2003-10-06 | 2005-04-07 | Lehman Lyle Vaughan | Contamination-resistant sand control apparatus and method for preventing contamination of sand control devices |
| US7156174B2 (en) * | 2004-01-30 | 2007-01-02 | Halliburton Energy Services, Inc. | Contained micro-particles for use in well bore operations |
| US7036586B2 (en) * | 2004-01-30 | 2006-05-02 | Halliburton Energy Services, Inc. | Methods of cementing in subterranean formations using crack resistant cement compositions |
| US7204312B2 (en) * | 2004-01-30 | 2007-04-17 | Halliburton Energy Services, Inc. | Compositions and methods for the delivery of chemical components in subterranean well bores |
| US7431849B1 (en) * | 2004-03-05 | 2008-10-07 | Specialty Earth Sciences Llc | Encapsulated reactant and process |
| US10335757B2 (en) * | 2004-03-05 | 2019-07-02 | Specialty Earth Sciences | Process for making environmental reactant(s) |
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- 1992-05-05 US US07/878,940 patent/US5922652A/en not_active Expired - Lifetime
-
1993
- 1993-05-03 RU RU94046082A patent/RU2111049C1/ru active
- 1993-05-03 AT AT93910965T patent/ATE149237T1/de not_active IP Right Cessation
- 1993-05-03 JP JP5519554A patent/JPH07506408A/ja active Pending
- 1993-05-03 WO PCT/US1993/004108 patent/WO1993022537A1/en not_active Application Discontinuation
- 1993-05-03 DE DE69308297T patent/DE69308297D1/de not_active Expired - Lifetime
- 1993-05-03 CA CA002134980A patent/CA2134980C/en not_active Expired - Fee Related
- 1993-05-03 EP EP93910965A patent/EP0639240B1/en not_active Expired - Lifetime
- 1993-05-03 NZ NZ252502A patent/NZ252502A/en unknown
- 1993-05-03 CZ CZ942703A patent/CZ270394A3/cs unknown
- 1993-05-03 SK SK1322-94A patent/SK132294A3/sk unknown
- 1993-05-03 AU AU42274/93A patent/AU674850B2/en not_active Expired
- 1993-05-03 BR BR9306321A patent/BR9306321A/pt not_active IP Right Cessation
- 1993-05-03 KR KR1019940703930A patent/KR950701406A/ko not_active Application Discontinuation
- 1993-05-03 HU HU9403179A patent/HUT70884A/hu unknown
- 1993-05-05 MY MYPI93000837A patent/MY108854A/en unknown
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1994
- 1994-11-04 NO NO19944206A patent/NO311736B1/no not_active IP Right Cessation
- 1994-11-04 FI FI945196A patent/FI945196A0/fi unknown
-
1999
- 1999-07-13 US US09/360,370 patent/US6326335B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NZ252502A (en) | 1997-01-29 |
| ATE149237T1 (de) | 1997-03-15 |
| EP0639240A1 (en) | 1995-02-22 |
| MY108854A (en) | 1996-11-30 |
| AU674850B2 (en) | 1997-01-16 |
| FI945196A (fi) | 1994-11-04 |
| EP0639240B1 (en) | 1997-02-26 |
| NO944206L (no) | 1994-11-04 |
| CA2134980A1 (en) | 1993-11-11 |
| AU4227493A (en) | 1993-11-29 |
| WO1993022537A1 (en) | 1993-11-11 |
| KR950701406A (ko) | 1995-03-23 |
| DE69308297D1 (de) | 1997-04-03 |
| HU9403179D0 (en) | 1995-02-28 |
| CA2134980C (en) | 1999-08-03 |
| NO944206D0 (no) | 1994-11-04 |
| BR9306321A (pt) | 1996-03-26 |
| JPH07506408A (ja) | 1995-07-13 |
| FI945196A0 (fi) | 1994-11-04 |
| NO311736B1 (no) | 2002-01-14 |
| RU2111049C1 (ru) | 1998-05-20 |
| CZ270394A3 (en) | 1995-06-14 |
| US5922652A (en) | 1999-07-13 |
| HUT70884A (en) | 1995-11-28 |
| US6326335B1 (en) | 2001-12-04 |
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