NO175644B - - Google Patents
Download PDFInfo
- Publication number
- NO175644B NO175644B NO872322A NO872322A NO175644B NO 175644 B NO175644 B NO 175644B NO 872322 A NO872322 A NO 872322A NO 872322 A NO872322 A NO 872322A NO 175644 B NO175644 B NO 175644B
- Authority
- NO
- Norway
- Prior art keywords
- potassium
- cellulose
- cmc
- potassium salt
- drilling mud
- Prior art date
Links
- 229920002678 cellulose Polymers 0.000 claims description 64
- 235000010980 cellulose Nutrition 0.000 claims description 64
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 61
- 239000001913 cellulose Substances 0.000 claims description 59
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 claims description 32
- 238000005553 drilling Methods 0.000 claims description 30
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 29
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 25
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 24
- 239000004927 clay Substances 0.000 claims description 22
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 21
- 239000000243 solution Substances 0.000 claims description 18
- 159000000001 potassium salts Chemical class 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000001103 potassium chloride Substances 0.000 claims description 12
- 235000011164 potassium chloride Nutrition 0.000 claims description 12
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 10
- 239000003792 electrolyte Substances 0.000 claims description 8
- 239000000706 filtrate Substances 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 229920001732 Lignosulfonate Polymers 0.000 claims description 6
- 230000036571 hydration Effects 0.000 claims description 6
- 238000006703 hydration reaction Methods 0.000 claims description 6
- 238000006467 substitution reaction Methods 0.000 claims description 6
- 239000012153 distilled water Substances 0.000 claims description 5
- 239000011780 sodium chloride Substances 0.000 claims description 5
- 235000019738 Limestone Nutrition 0.000 claims description 4
- 229910052783 alkali metal Inorganic materials 0.000 claims description 4
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 claims description 4
- 239000006028 limestone Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- FIJPWGLOBMXXSF-UHFFFAOYSA-M potassium;2-hydroxyacetate Chemical compound [K+].OCC([O-])=O FIJPWGLOBMXXSF-UHFFFAOYSA-M 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- 235000011437 Amygdalus communis Nutrition 0.000 claims description 3
- 229920000298 Cellophane Polymers 0.000 claims description 3
- 229920000388 Polyphosphate Polymers 0.000 claims description 3
- 241000220304 Prunus dulcis Species 0.000 claims description 3
- 150000001340 alkali metals Chemical class 0.000 claims description 3
- 235000020224 almond Nutrition 0.000 claims description 3
- 239000010425 asbestos Substances 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 239000001205 polyphosphate Substances 0.000 claims description 3
- 235000011176 polyphosphates Nutrition 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 239000010902 straw Substances 0.000 claims description 3
- 229920001864 tannin Polymers 0.000 claims description 3
- 239000001648 tannin Substances 0.000 claims description 3
- 235000018553 tannin Nutrition 0.000 claims description 3
- 235000013311 vegetables Nutrition 0.000 claims description 3
- 239000010455 vermiculite Substances 0.000 claims description 3
- 229910052902 vermiculite Inorganic materials 0.000 claims description 3
- 235000019354 vermiculite Nutrition 0.000 claims description 3
- 239000012736 aqueous medium Substances 0.000 claims description 2
- 229920005610 lignin Polymers 0.000 claims description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 33
- CXHHBNMLPJOKQD-UHFFFAOYSA-N methyl hydrogen carbonate Chemical compound COC(O)=O CXHHBNMLPJOKQD-UHFFFAOYSA-N 0.000 description 22
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 21
- 239000000047 product Substances 0.000 description 18
- 239000010802 sludge Substances 0.000 description 13
- 239000011591 potassium Substances 0.000 description 12
- 229910052700 potassium Inorganic materials 0.000 description 12
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 11
- FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 description 11
- 238000003756 stirring Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 239000000725 suspension Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- 229910001414 potassium ion Inorganic materials 0.000 description 8
- 239000000440 bentonite Substances 0.000 description 7
- 229910000278 bentonite Inorganic materials 0.000 description 7
- 229940092782 bentonite Drugs 0.000 description 7
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 7
- 239000011541 reaction mixture Substances 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 230000032683 aging Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 6
- 229910052901 montmorillonite Inorganic materials 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 159000000000 sodium salts Chemical class 0.000 description 6
- 229910001868 water Inorganic materials 0.000 description 6
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical group [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 5
- 230000002401 inhibitory effect Effects 0.000 description 5
- 238000006116 polymerization reaction Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000012512 characterization method Methods 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 239000003085 diluting agent Substances 0.000 description 4
- 229910052900 illite Inorganic materials 0.000 description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 4
- 229910052622 kaolinite Inorganic materials 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 4
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 3
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 230000001143 conditioned effect Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- TWNIBLMWSKIRAT-VFUOTHLCSA-N levoglucosan Chemical group O[C@@H]1[C@@H](O)[C@H](O)[C@H]2CO[C@@H]1O2 TWNIBLMWSKIRAT-VFUOTHLCSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- VGIBGUSAECPPNB-UHFFFAOYSA-L nonaaluminum;magnesium;tripotassium;1,3-dioxido-2,4,5-trioxa-1,3-disilabicyclo[1.1.1]pentane;iron(2+);oxygen(2-);fluoride;hydroxide Chemical compound [OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[F-].[Mg+2].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].[K+].[Fe+2].O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2 VGIBGUSAECPPNB-UHFFFAOYSA-L 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910001415 sodium ion Inorganic materials 0.000 description 3
- 239000007790 solid phase Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000001476 alcoholic effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000007970 homogeneous dispersion Substances 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- XTUSEBKMEQERQV-UHFFFAOYSA-N propan-2-ol;hydrate Chemical compound O.CC(C)O XTUSEBKMEQERQV-UHFFFAOYSA-N 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 229910021532 Calcite Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000004113 Sepiolite Substances 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 239000010428 baryte Substances 0.000 description 1
- 229910052601 baryte Inorganic materials 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- -1 carboxy- Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910001919 chlorite Inorganic materials 0.000 description 1
- 229910052619 chlorite group Inorganic materials 0.000 description 1
- 229940106681 chloroacetic acid Drugs 0.000 description 1
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- ONCZQWJXONKSMM-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical compound O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] ONCZQWJXONKSMM-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 239000012264 purified product Substances 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
- 229910021646 siderite Inorganic materials 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229940080314 sodium bentonite Drugs 0.000 description 1
- 229910000280 sodium bentonite Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 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
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/14—Clay-containing compositions
- C09K8/18—Clay-containing compositions characterised by the organic compounds
- C09K8/20—Natural organic compounds or derivatives thereof, e.g. polysaccharides or lignin derivatives
- C09K8/206—Derivatives of other natural products, e.g. cellulose, starch, sugars
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Detergent Compositions (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Lubricants (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT20682/86A IT1190037B (it) | 1986-06-05 | 1986-06-05 | Fluido di perforazione potassico |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| NO872322D0 NO872322D0 (no) | 1987-06-03 |
| NO872322L NO872322L (no) | 1987-12-07 |
| NO175644B true NO175644B (es) | 1994-08-01 |
| NO175644C NO175644C (no) | 1994-11-09 |
Family
ID=11170496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO872322A NO175644C (no) | 1986-06-05 | 1987-06-03 | Vandig boreslam, og anvendelse av dette |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0248495B1 (es) |
| CN (1) | CN1025627C (es) |
| AU (1) | AU601430B2 (es) |
| CA (1) | CA1281175C (es) |
| DK (1) | DK175013B1 (es) |
| EG (1) | EG18868A (es) |
| ES (1) | ES2037703T3 (es) |
| IT (1) | IT1190037B (es) |
| MX (1) | MX168845B (es) |
| NO (1) | NO175644C (es) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1315977C (zh) * | 2003-05-16 | 2007-05-16 | 韩文峰 | 无粘土油层保护钻井液 |
| CN109337658A (zh) * | 2018-12-03 | 2019-02-15 | 重庆力宏精细化工有限公司 | 一种水基钻井液添加剂及其钻井液和制备方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2425768A (en) * | 1944-08-12 | 1947-08-19 | Phillips Petroleum Co | Drilling fluids and method of use |
| US2468792A (en) * | 1947-08-18 | 1949-05-03 | Phillips Petroleum Co | Drilling fluids and methods of using same |
| US2776259A (en) * | 1955-09-28 | 1957-01-01 | Exxon Research Engineering Co | Drilling muds |
| AU423787B2 (en) * | 1967-07-12 | 1972-05-02 | Phillips Petroleum Company | Improvements in aqueous drilling fluids |
-
1986
- 1986-06-05 IT IT20682/86A patent/IT1190037B/it active
-
1987
- 1987-06-01 CA CA000538509A patent/CA1281175C/en not_active Expired - Lifetime
- 1987-06-02 ES ES198787201030T patent/ES2037703T3/es not_active Expired - Lifetime
- 1987-06-02 DK DK198702814A patent/DK175013B1/da not_active IP Right Cessation
- 1987-06-02 EP EP87201030A patent/EP0248495B1/en not_active Expired - Lifetime
- 1987-06-03 NO NO872322A patent/NO175644C/no unknown
- 1987-06-03 AU AU73779/87A patent/AU601430B2/en not_active Expired
- 1987-06-04 EG EG32787A patent/EG18868A/xx active
- 1987-06-04 MX MX006779A patent/MX168845B/es unknown
- 1987-06-05 CN CN87105729A patent/CN1025627C/zh not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| MX168845B (es) | 1993-06-11 |
| NO872322D0 (no) | 1987-06-03 |
| AU7377987A (en) | 1987-12-10 |
| EP0248495B1 (en) | 1992-12-02 |
| EP0248495A2 (en) | 1987-12-09 |
| IT8620682A0 (it) | 1986-06-05 |
| EG18868A (en) | 1994-03-30 |
| NO175644C (no) | 1994-11-09 |
| EP0248495A3 (en) | 1989-06-14 |
| CA1281175C (en) | 1991-03-12 |
| ES2037703T3 (es) | 1993-07-01 |
| CN1025627C (zh) | 1994-08-10 |
| IT8620682A1 (it) | 1987-12-05 |
| CN87105729A (zh) | 1988-03-09 |
| DK175013B1 (da) | 2004-04-26 |
| DK281487A (da) | 1987-12-06 |
| AU601430B2 (en) | 1990-09-13 |
| IT1190037B (it) | 1988-02-10 |
| NO872322L (no) | 1987-12-07 |
| DK281487D0 (da) | 1987-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2574498C (en) | Water-based drilling fluids comprising carboxymethylated raw cotton linters | |
| EP1339811B1 (en) | Environmentally acceptable fluid polymer suspension for oil field services | |
| US5785747A (en) | Viscosification of high density brines | |
| CA1054356A (en) | Clay-free thixotropic wellbore fluid | |
| US4003838A (en) | Water loss reduction agents | |
| NO20140723A1 (no) | Sammensetning og fremgangsmåte | |
| EP1957601A1 (en) | Solvent free fluidized polymer suspensions for oilfield servicing fluids | |
| US9266971B2 (en) | Nonionic hydrophobically substituted cellulose ethers | |
| EP0675936A1 (en) | Environmentally safe drilling fluid | |
| US6586587B1 (en) | Ligand-modified cellulose products | |
| MX2013001795A (es) | Fluidos de servicio a pozos que comprenden un eter de celulosa. | |
| US7018955B2 (en) | Drilling fluid, apparatus, and method | |
| Zhang et al. | New water-soluble ampholytic polysaccharides for oilfield drilling treatment: a preliminary study | |
| US3993570A (en) | Water loss reduction agents | |
| NL1021340C2 (nl) | Boorfluïdum, inrichting, en werkwijze. | |
| BR0001330B1 (pt) | produtos de celulose modificados. | |
| US20070135311A1 (en) | Use of cmc in drilling fluids | |
| US2618595A (en) | Well drilling composition | |
| US20040157748A1 (en) | Aqueous-based oil well drilling fluids containing high amylose starch polymers | |
| NO175644B (es) | ||
| US5985801A (en) | Oil-free water-soluble hydroxyethyl cellulose liquid polymer dispersion | |
| US2556222A (en) | Drilling fluids and methods of using same | |
| NO159535B (no) | Fremgangsmaate for fremstilling av tunge saltopploesninger inneholdende vaesketapsreduserende mengder av hydroksyetylcellulose. | |
| CA2354894A1 (en) | Drilling fluid, apparatus, and method | |
| JPH01297488A (ja) | 泥水用調泥剤 |