FI761832A - - Google Patents
Info
- Publication number
- FI761832A FI761832A FI761832A FI761832A FI761832A FI 761832 A FI761832 A FI 761832A FI 761832 A FI761832 A FI 761832A FI 761832 A FI761832 A FI 761832A FI 761832 A FI761832 A FI 761832A
- Authority
- FI
- Finland
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
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/032—Inorganic additives
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Iron (AREA)
- Hard Magnetic Materials (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Soft Magnetic Materials (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2528464 | 1975-06-26 | ||
| DE19752528464 DE2528464C3 (de) | 1975-06-26 | Verfahren zur Herstellung von Beschwermittel für Bohrspülungen |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI761832A true FI761832A (it) | 1976-12-27 |
| FI62552B FI62552B (fi) | 1982-09-30 |
| FI62552C FI62552C (fi) | 1983-01-10 |
Family
ID=5949984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI761832A FI62552C (fi) | 1975-06-26 | 1976-06-23 | Foerfarande foer framstaellning av belastningsmedel foer borrspolningsmedel |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US4092407A (it) |
| JP (1) | JPS5220983A (it) |
| BE (1) | BE843470A (it) |
| CA (1) | CA1058382A (it) |
| DK (1) | DK286976A (it) |
| ES (1) | ES449269A1 (it) |
| FI (1) | FI62552C (it) |
| FR (1) | FR2317349A1 (it) |
| GB (1) | GB1554430A (it) |
| GR (1) | GR60419B (it) |
| IE (1) | IE43249B1 (it) |
| IT (1) | IT1061116B (it) |
| NL (1) | NL7606832A (it) |
| NO (1) | NO142353C (it) |
| PT (1) | PT65273B (it) |
| SE (1) | SE410846B (it) |
| TR (1) | TR18903A (it) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3009238A1 (de) * | 1980-03-11 | 1981-09-24 | Volkswagenwerk Ag, 3180 Wolfsburg | Verfahren zur aufarbeitung von wasser- und/oder oelhaltigen metallischen und/oder metalloxidischen schleifstaeuben, insbesondere eisen- und/oder eisenoxidstaeuben |
| US4436681A (en) | 1982-05-17 | 1984-03-13 | Barczak Virgil J | Process for producing iron oxide weighting material from iron chloride solutions |
| US4519922A (en) * | 1983-03-21 | 1985-05-28 | Halliburton Company | Environmentally compatible high density drill mud or blow-out control fluid |
| US4584327A (en) * | 1985-05-24 | 1986-04-22 | Halliburton Company | Environmentally compatable high density drilling mud, cement composition or blow-out fluid |
| US6180573B1 (en) | 1997-11-20 | 2001-01-30 | Dresser Industries, Inc. | Weight material for drilling fluids and method of creating and maintaining the desired weight |
| CN100526214C (zh) * | 2006-07-07 | 2009-08-12 | 铜陵有色金属集团控股有限公司铜冠冶化分公司 | 一种利用循环流化床焙烧硫铁矿制备二氧化硫的方法 |
| US20100164303A1 (en) * | 2008-12-31 | 2010-07-01 | Schlumberger Technology Corporation | Submersible motor with ferrofluid gap |
| CA2993627A1 (en) * | 2015-07-29 | 2017-02-02 | M-I L.L.C. | Wellbore fluids for use downhole |
| US10000682B2 (en) * | 2015-07-29 | 2018-06-19 | M-I L.L.C. | Methods of drilling |
| GB2556526B (en) * | 2015-07-29 | 2022-02-23 | Mi Llc | Methods of pneumatically conveying solid particulates |
| MX2018001195A (es) * | 2015-07-29 | 2018-04-24 | Mi Llc | Metodos para formular fluidos de pozo. |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2298984A (en) * | 1937-05-28 | 1942-10-13 | Nat Lead Co | Iron oxide weighting material for drilling muds |
| US2820704A (en) * | 1956-01-06 | 1958-01-21 | United States Steel Corp | Method of improving characteristics of iron oxide agglomerates |
| US3245778A (en) * | 1962-04-06 | 1966-04-12 | Mcdowell Wellman Eng Co | Method of indurating iron ore concentrates |
| RO61289A (it) * | 1971-08-10 | 1976-10-15 | ||
| US3867128A (en) * | 1972-12-18 | 1975-02-18 | Jr James Thomas Hancock | Process for producing high specific gravity material from low grade iron ore |
-
1976
- 1976-06-22 IT IT24536/76A patent/IT1061116B/it active
- 1976-06-23 FI FI761832A patent/FI62552C/fi not_active IP Right Cessation
- 1976-06-23 NL NL7606832A patent/NL7606832A/xx not_active Application Discontinuation
- 1976-06-24 US US05/699,257 patent/US4092407A/en not_active Expired - Lifetime
- 1976-06-24 PT PT65273A patent/PT65273B/pt unknown
- 1976-06-24 TR TR18903A patent/TR18903A/xx unknown
- 1976-06-24 SE SE7607314A patent/SE410846B/xx unknown
- 1976-06-25 IE IE1390/76A patent/IE43249B1/en unknown
- 1976-06-25 NO NO762209A patent/NO142353C/no unknown
- 1976-06-25 GB GB26658/76A patent/GB1554430A/en not_active Expired
- 1976-06-25 ES ES449269A patent/ES449269A1/es not_active Expired
- 1976-06-25 BE BE6045571A patent/BE843470A/xx unknown
- 1976-06-25 DK DK286976A patent/DK286976A/da not_active Application Discontinuation
- 1976-06-25 GR GR51095A patent/GR60419B/el unknown
- 1976-06-25 FR FR7619405A patent/FR2317349A1/fr active Granted
- 1976-06-25 CA CA255,674A patent/CA1058382A/en not_active Expired
- 1976-06-25 JP JP51075948A patent/JPS5220983A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US4092407A (en) | 1978-05-30 |
| NO762209L (it) | 1976-12-28 |
| DK286976A (da) | 1976-12-27 |
| JPS5220983A (en) | 1977-02-17 |
| SE7607314L (sv) | 1976-12-27 |
| FI62552B (fi) | 1982-09-30 |
| ES449269A1 (es) | 1977-07-16 |
| NO142353B (no) | 1980-04-28 |
| NL7606832A (nl) | 1976-12-28 |
| IE43249B1 (en) | 1981-01-14 |
| SE410846B (sv) | 1979-11-12 |
| CA1058382A (en) | 1979-07-17 |
| GR60419B (en) | 1978-05-25 |
| FI62552C (fi) | 1983-01-10 |
| PT65273A (en) | 1976-07-01 |
| NO142353C (no) | 1980-08-06 |
| PT65273B (en) | 1977-12-10 |
| FR2317349B1 (it) | 1979-08-10 |
| DE2528464B2 (de) | 1977-04-21 |
| FR2317349A1 (fr) | 1977-02-04 |
| BE843470A (fr) | 1976-12-27 |
| IE43249L (en) | 1976-12-26 |
| TR18903A (tr) | 1977-12-09 |
| IT1061116B (it) | 1982-10-20 |
| GB1554430A (en) | 1979-10-24 |
| DE2528464A1 (de) | 1976-12-30 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |
Owner name: METALLGESELLSCHAFT |