NO790146L - Fremgangsmaate for utvinning av olje fra oljeholdige formasjoner samt overflateaktivt middel for bruk ved fremgangsmaaten - Google Patents

Fremgangsmaate for utvinning av olje fra oljeholdige formasjoner samt overflateaktivt middel for bruk ved fremgangsmaaten

Info

Publication number
NO790146L
NO790146L NO790146A NO790146A NO790146L NO 790146 L NO790146 L NO 790146L NO 790146 A NO790146 A NO 790146A NO 790146 A NO790146 A NO 790146A NO 790146 L NO790146 L NO 790146L
Authority
NO
Norway
Prior art keywords
procedure
formations
oily
surface active
oil extraction
Prior art date
Application number
NO790146A
Other languages
English (en)
Other versions
NO148384C (no
NO148384B (no
Inventor
Walter W Gale
Maura C Puerto
Thomas L Ashcraft
Rhoderick K Saunders
Ronald L Reed
Original Assignee
Exxon Production Research Co
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.)
Filing date
Publication date
Application filed by Exxon Production Research Co filed Critical Exxon Production Research Co
Publication of NO790146L publication Critical patent/NO790146L/no
Publication of NO148384B publication Critical patent/NO148384B/no
Publication of NO148384C publication Critical patent/NO148384C/no

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
    • C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
    • C09K8/584—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
    • 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
    • Y10S516/00—Colloid systems and wetting agents; subcombinations thereof; processes of
    • Y10S516/01—Wetting, emulsifying, dispersing, or stabilizing agents
    • Y10S516/02—Organic and inorganic agents containing, except water
    • 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
    • Y10S516/00—Colloid systems and wetting agents; subcombinations thereof; processes of
    • Y10S516/01—Wetting, emulsifying, dispersing, or stabilizing agents
    • Y10S516/03—Organic sulfoxy compound containing
    • 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
    • Y10S516/00—Colloid systems and wetting agents; subcombinations thereof; processes of
    • Y10S516/01—Wetting, emulsifying, dispersing, or stabilizing agents
    • Y10S516/03—Organic sulfoxy compound containing
    • Y10S516/04—Protein or carboxylic compound containing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Fats And Perfumes (AREA)
NO790146A 1978-01-18 1979-01-16 Fremgangsmaate for utvinning av olje fra oljeholdige formasjoner NO148384C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/870,313 US4293428A (en) 1978-01-18 1978-01-18 Propoxylated ethoxylated surfactants and method of recovering oil therewith

Publications (3)

Publication Number Publication Date
NO790146L true NO790146L (no) 1979-07-19
NO148384B NO148384B (no) 1983-06-20
NO148384C NO148384C (no) 1983-10-05

Family

ID=25355121

Family Applications (1)

Application Number Title Priority Date Filing Date
NO790146A NO148384C (no) 1978-01-18 1979-01-16 Fremgangsmaate for utvinning av olje fra oljeholdige formasjoner

Country Status (5)

Country Link
US (1) US4293428A (no)
EP (1) EP0003183B1 (no)
CA (1) CA1107750A (no)
DE (1) DE2962369D1 (no)
NO (1) NO148384C (no)

Families Citing this family (95)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5716097A (en) * 1980-07-04 1982-01-27 Lion Corp Production of deodorized alkyl ether sulfate aqueous concentrate
EP0047370B1 (de) * 1980-09-10 1983-08-17 Hüls Aktiengesellschaft Verfahren zur Gewinnung von Öl aus einer unterirdischen Lagerstätte
DE3033927C2 (de) * 1980-09-10 1982-09-09 Chemische Werke Hüls AG, 4370 Marl Verfahren zur Gewinnung von weitgehend emulsionsfreiem Öl aus einer unterirdischen Lagerstätte
US4406798A (en) * 1981-08-24 1983-09-27 Pfizer Inc. Surfactant enhanced injectivity of xanthan mobility control solutions for tertiary oil recovery
EP0073894B1 (de) * 1981-09-01 1986-01-29 Hüls Aktiengesellschaft Verfahren zur Gewinnung von Öl aus einer unterirdischen Lagerstätte
US4601836A (en) * 1981-10-13 1986-07-22 Jones L W Phosphate ester/alcohol micellar solutions in well acidizing
US4448697A (en) * 1982-01-22 1984-05-15 Texaco Inc. Secondary recovery process
US4493774A (en) * 1982-02-18 1985-01-15 Exxon Production Research Co. Method for improving injectivities of biopolymer solutions
US4452708A (en) * 1982-02-18 1984-06-05 Exxon Production Research Co. Oil recovery method using sulfonate surfactants derived from extracted aromatic feedstocks
US4465602A (en) * 1982-06-11 1984-08-14 Texaco Inc. Oil recovery method utilizing an alkylarylpolyalkoxyalkylene sulfonate
US4466891A (en) * 1982-07-02 1984-08-21 Texaco Inc. Glyceryl ether sulfonates for use in oil recovery fluids and processes
DE3307712A1 (de) * 1983-03-04 1984-09-06 Chemische Werke Hüls AG, 4370 Marl Verfahren zur gewinnung von oel aus speichergestein
US4738789A (en) * 1983-06-20 1988-04-19 Jones L W Surfactant solvent composition
GB2141731B (en) * 1983-06-20 1987-10-21 Loyd Wardwell Jones Oil recovery surfactant composition
US4882075A (en) * 1983-06-20 1989-11-21 Jones L W Acidic surfactant solvent composition
DE3347578A1 (de) * 1983-12-30 1985-07-11 Hoechst Ag, 6230 Frankfurt Tributylphenoletherglycidylsulfonate, verfahren zu deren herstellung und deren verwendung
US4585065A (en) * 1984-11-15 1986-04-29 Halliburton Company Methods of increasing hydrocarbon production from subterranean formations
JPS61136577A (ja) * 1984-12-06 1986-06-24 Lion Corp 石油回収用流体
NO165797C (no) * 1985-01-03 1991-04-10 Berol Kemi Ab Overflateaktiv forbindelse og emulsjon inneholdende denne, samt anvendelse derav.
DE3523355A1 (de) * 1985-06-29 1987-01-08 Huels Chemische Werke Ag Verfahren zur gewinnung von oel aus unterirdischem speichergestein
DE3531214A1 (de) * 1985-08-31 1987-03-05 Huels Chemische Werke Ag Verfahren zur injektivitaetserhoehung von einpressbohrungen bei der oelfoerderung mittels wasserfluten
US5068043A (en) * 1985-11-12 1991-11-26 Shell Oil Company Preformed surfactant-optimized aqueous alkaline flood
US4980087A (en) * 1986-01-15 1990-12-25 Sandoz Ltd. Ether sulfates of a mixture of branched 1-decanols
US4879399A (en) * 1986-01-15 1989-11-07 Sandoz Ltd. Ether sulfates of a mixture of branched 1-decanols
US4811788A (en) * 1986-02-13 1989-03-14 The Standard Oil Company Surfactant combinations and enhanced oil recovery method employing same
DE3607090A1 (de) * 1986-03-05 1987-09-10 Huels Chemische Werke Ag Verfahren zum transport von schweroelen
US4690217A (en) * 1986-08-15 1987-09-01 Amoco Corporation Process for water injectivity improvement treatment of water injection wells
DE3644386A1 (de) * 1986-12-24 1988-07-07 Huels Chemische Werke Ag Verfahren zur gewinnung von erdoel aus einer unterirdischen lagerstaette durch tensidfluten
US4828032A (en) * 1987-10-15 1989-05-09 Exxon Production Research Company Oil recovery process using alkyl hydroxyaromatic dianionic surfactants as mobility control agents
US4836283A (en) * 1988-06-08 1989-06-06 The Standard Oil Company Divalent ion tolerant aromatic sulfonates
US4894173A (en) * 1988-06-08 1990-01-16 The Standard Oil Company Divalent ion tolerant aromatic sulfonates
US4892660A (en) * 1988-10-17 1990-01-09 Exxon Research And Engineering Company Pressure induced surfactant recovery during ultrafiltration of water-oil emulsions
US4959490A (en) * 1988-11-14 1990-09-25 Exxon Production Research Company Process for manufacturing disulfonate surfactants
US5076363A (en) * 1989-01-31 1991-12-31 The Standard Oil Company Surfactant-polymer composition and method of enhanced oil recovery
US4979564A (en) * 1989-01-31 1990-12-25 The Standard Oil Company Method of enhanced oil recovery using low tension viscous waterflood
US4886120A (en) * 1989-02-01 1989-12-12 Conoco Inc. Process for secondary oil recovery utilizing propoxylated ethoxylated surfactants in seawater
US4944346A (en) * 1989-12-11 1990-07-31 Atlantic Richfield Company Ether sulfoxide compounds for enhanced oil recovery
US5282984A (en) * 1990-06-25 1994-02-01 Texaco Inc. Generating bitumen-in-water dispersions and emulsions
US5311943A (en) * 1992-10-19 1994-05-17 Shell Oil Company Blends of propoxy and ethoxy surfactants
DE19621843A1 (de) * 1996-05-30 1997-12-04 Basf Ag Blockförmige iso-Tridecanolalkoxylate als schaumarme oder schaumdämpfende Tenside
US5843317A (en) * 1997-02-26 1998-12-01 Rhodia Inc. Recovery and reuse of anionic surfactants from aqueous solutions
US6013185A (en) * 1997-09-25 2000-01-11 Rhodia Inc. Recovery and reuse of nonionic surfactants from aqueous solutions
US6828281B1 (en) 2000-06-16 2004-12-07 Akzo Nobel Surface Chemistry Llc Surfactant blends for aqueous solutions useful for improving oil recovery
CN101541705B (zh) * 2006-11-30 2014-10-08 巴斯夫欧洲公司 pH调节的增稠剂体系
US7427588B2 (en) * 2007-01-12 2008-09-23 Paul Daniel Berger Ether sulfonate surfactants and process for making same
US8235120B2 (en) * 2007-07-03 2012-08-07 Baker Hughes Incorporated Mesophase fluids with extended chain surfactants for downhole treatments
US20090078414A1 (en) * 2007-09-25 2009-03-26 Schlumberger Technology Corp. Chemically enhanced thermal recovery of heavy oil
EP2203419A1 (de) 2007-10-16 2010-07-07 Basf Se Neuartige tenside mit polyethersulfonat-struktur, verfahren zu deren herstellung und deren verwendung zur tertiären erdölförderung
JP5281278B2 (ja) * 2007-12-11 2013-09-04 花王株式会社 乳化重合用界面活性剤組成物
EP2250233A1 (en) * 2008-02-07 2010-11-17 Shell Internationale Research Maatschappij B.V. Method and composition for enhanced hydrocarbons recovery
EP2250234B1 (en) * 2008-02-07 2014-01-08 Shell Internationale Research Maatschappij B.V. Method and composition for enhanced hydrocarbons recovery
MY165828A (en) * 2008-02-07 2018-05-17 Shell Int Research Method and composition for enhanced hydrocarbons recovery
BRPI0908071B1 (pt) * 2008-02-07 2019-05-28 Shell Internationale Research Maatschappij B.V. Método para tratar uma formação contendo hidrocarbonetos
EA024070B1 (ru) * 2008-02-07 2016-08-31 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. Способ и композиция для улучшенного извлечения углеводородов
CN102057013B (zh) 2008-04-10 2014-04-09 巴斯夫欧洲公司 用于三级原油回收的基于支化醇的表面活性剂
EP2346924B1 (en) * 2008-10-15 2022-08-31 Dow Global Technologies LLC Method for oil recovery
JP5571367B2 (ja) * 2008-12-25 2014-08-13 花王株式会社 界面活性剤組成物
US9109152B2 (en) * 2009-09-10 2015-08-18 Board Of Regents, The University Of Texas System Compositions and methods for controlling the stability of ethersulfate surfactants at elevated temperatures
CN102549105A (zh) * 2009-09-29 2012-07-04 考格尼斯知识产权管理有限责任公司 烷基(烯基)寡糖苷在强化采油工艺中的用途
AU2010305911B2 (en) * 2009-10-14 2014-11-20 Basf Se Process for tertiary mineral oil production using surfactant mixtures
US8607865B2 (en) 2010-03-10 2013-12-17 Basf Se Process for extracting mineral oil using surfactants based on butylene oxide-containing alkyl alkoxylates
US8596367B2 (en) 2010-03-10 2013-12-03 Basf Se Process for producing mineral oil using surfactants based on C16C18-containing alkyl propoxy surfactants
JP6006123B2 (ja) 2010-03-10 2016-10-12 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ Ｃ１６ｃ１８−含有アルキルプロポキシ界面活性剤系の界面活性剤を用いる鉱油の生産方法
US8741130B2 (en) 2010-04-08 2014-06-03 Nalco Company Method for resolving emulsions in enhanced oil recovery operations
AR081549A1 (es) * 2010-05-25 2012-10-03 Univ Texas Formulaciones de polimeros alcalinos sin surfactante para recuperar petroleo crudo reactivo
US20110315604A1 (en) 2010-06-24 2011-12-29 Nguyen Duy T Method for resolving emulsions in enhanced oil recovery operations
CN103347976A (zh) * 2010-12-29 2013-10-09 国际壳牌研究有限公司 用于从含原油地层强化烃采收的方法和组合物
US9650558B2 (en) * 2011-02-02 2017-05-16 Baker Hughes Incorporated Oil field treatment fluids
DE102011015046A1 (de) 2011-03-24 2012-09-27 Sasol Germany Gmbh Hochkonzentrierte fließfähige Salze von Alkylpolyalkoxysulfaten
CA2832230C (en) 2011-04-05 2019-11-12 Montgomery Chemicals Llc Method and compositions for enhanced oil recovery
EP2702117A1 (en) 2011-04-20 2014-03-05 Shell Internationale Research Maatschappij B.V. Method and composition for enhanced hydrocarbon recovery
WO2013090614A1 (en) 2011-12-13 2013-06-20 Board Of Regents, The University Of Texas System Light co-solvent compositions
DE102012003224A1 (de) * 2012-02-20 2013-08-22 Sasol Germany Gmbh Bohrspülflüssigkeit, Verwendung und Verfahren unter Verwendung der Bohrspülflüssigkeit
WO2014047924A1 (en) 2012-09-29 2014-04-03 Dow Global Technologies Llc Anionic surfactant compositions and use thereof
SG11201406610VA (en) * 2012-10-01 2014-11-27 Huntsman Petrochemical Llc Surfactant formulation for release of underground fossil fluids
DE102013100789A1 (de) * 2013-01-25 2014-07-31 Sasol Germany Gmbh Hochkonzentrierte, wasserfreie Aminsalze von Kohlenwasserstoff-alkoxysulfaten und Verwendung und Verfahren unter Verwendung von wässrigen Verdünnungen derselben
CN103965851A (zh) * 2013-02-05 2014-08-06 中国石油化工股份有限公司 复合表面活性剂及制备方法
AR094914A1 (es) 2013-02-28 2015-09-09 Univ Texas Composición tensioactiva codisolvente de fenol-etoxilato
WO2014134826A1 (en) * 2013-03-08 2014-09-12 Dow Global Technologies Llc Anionic surfactant compositions and use thereof
WO2015048131A1 (en) 2013-09-26 2015-04-02 Shell Oil Company Composition and method for enhanced hydrocarbon recovery
WO2015048139A1 (en) 2013-09-26 2015-04-02 Shell Oil Company Composition and method for enhanced hydrocarbon recovery
WO2015048135A1 (en) 2013-09-26 2015-04-02 Shell Oil Company Composition and method for enhanced hydrocarbon recovery
US9663703B2 (en) 2014-04-25 2017-05-30 James George Clements Method and compositions for enhanced oil recovery
US20180291285A1 (en) 2015-05-22 2018-10-11 Clariant International, Ltd. Method For Environmentally Acceptable Treatment Of Emulsions In Chemically Enhanced Oil Recovery Operations
CN106590586B (zh) * 2015-10-20 2022-04-01 中国石油化工股份有限公司 用于三次采油的驱油剂
MX2018012089A (es) 2016-04-03 2019-01-10 Stepan Co Metodos mejorados de recuperacion de petroleo.
BR112019021986A2 (pt) * 2017-06-08 2020-05-05 Huntsman Petrochemical Llc composição, método de preparar um composto tensoativo, produto embalado, formulações de produtos químicos de desempenho e de cuidado pessoal, e, concentrados agroquímicos emulsificável e em suspensão.
WO2019097272A1 (en) 2017-11-14 2019-05-23 Total Sa Surfactant composition for the reinjection of produced water
US11421146B2 (en) 2018-06-06 2022-08-23 The Board Of Regents Of The University Of Oklahoma Viscoelastic fluids and methods of use
CN109158050A (zh) * 2018-09-10 2019-01-08 上海邦高化学有限公司 腰果酚型阴-非离子表面活性剂及其制备方法与应用
CN109504549B (zh) * 2018-09-26 2021-03-16 武汉奥克特种化学有限公司 一种环保型低泡耐碱增溶剂的制备及其应用
AR118835A1 (es) * 2019-05-03 2021-11-03 Sasol Performance Chemicals Gmbh Fluidos de inyección que comprenden surfactantes aniónicos y alcoholes alcoxilados y el uso de tales fluidos en procesos de recuperación de petróleo mejorada
CN111087606A (zh) * 2019-11-20 2020-05-01 大庆油田有限责任公司 一种驱油用双长链烷基聚氧乙烯-聚氧丙烯醚硫酸盐表面活性剂及其制备方法
CN111073621A (zh) * 2019-11-20 2020-04-28 大庆油田有限责任公司 一种驱油用双长链阴-非复合型表面活性剂及其制备方法
CA3200507A1 (en) * 2020-11-30 2022-06-02 Mohammad Piri Methods and formulations for enhanced oil recovery

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2174761A (en) * 1935-04-13 1939-10-03 Ig Farbenindustrie Ag Condensation products derived from hydroxy compounds and method of producing them
NL272723A (no) * 1951-05-31
US2674619A (en) * 1953-10-19 1954-04-06 Wyandotte Chemicals Corp Polyoxyalkylene compounds
US2978409A (en) * 1957-07-09 1961-04-04 Rohm & Haas Composition and method for the elimination of water-block in oil wells
US3036130A (en) * 1957-09-10 1962-05-22 Wyandotte Chemicals Corp Mixtures of novel conjugated polyoxyethylene-polyoxypropylene compounds
US3110736A (en) * 1958-09-15 1963-11-12 Petrolite Corp Certain oxyalkylated polyols
US3513009A (en) * 1965-12-27 1970-05-19 Nat Gypsum Co Method of forming fissured acoustical panel
US3565939A (en) * 1967-06-09 1971-02-23 Standard Chem Products Inc Partial neutralization of sulfates of ethoxylated alcohols
US3508612A (en) * 1968-08-15 1970-04-28 Shell Oil Co Waterflood oil recovery using calciumcompatible mixture of anionic surfactants
US3890239A (en) * 1973-02-01 1975-06-17 Sun Oil Co Surfactant compositions useful in oil recovery processes
US3827497A (en) * 1973-02-01 1974-08-06 Sun Oil Co Oil recovery process using aqueous surfactant compositions
US4043922A (en) * 1974-03-15 1977-08-23 Texaco Inc. Secondary oil recovery process using oxyalkylated additives
US3981361A (en) * 1975-07-31 1976-09-21 Exxon Production Research Company Oil recovery method using microemulsions
US4134415A (en) * 1976-03-08 1979-01-16 Texaco Inc. Pipeline transportation of heavy crude oil
US4108193A (en) * 1976-03-08 1978-08-22 Texaco Inc. Pipeline method for transporting viscous hydrocarbons
US4077471A (en) * 1976-12-01 1978-03-07 Texaco Inc. Surfactant oil recovery process usable in high temperature, high salinity formations
US4110229A (en) * 1976-12-01 1978-08-29 Texaco Inc. Salinity tolerant surfactant oil recovery process
DE2748722A1 (de) * 1977-03-03 1978-09-07 Texaco Development Corp Verfahren zur herstellung eines aethersulfonats
US4125156A (en) * 1977-06-06 1978-11-14 Phillips Petroleum Company Aqueous surfactant systems for in situ multiphase microemulsion formation
US4181178A (en) * 1977-12-12 1980-01-01 Mobil Oil Corporation Oil recovery by waterflooding with thickened surfactant solutions

Also Published As

Publication number Publication date
EP0003183B1 (en) 1982-03-31
NO148384C (no) 1983-10-05
US4293428A (en) 1981-10-06
CA1107750A (en) 1981-08-25
EP0003183A1 (en) 1979-07-25
DE2962369D1 (en) 1982-05-06
NO148384B (no) 1983-06-20

Similar Documents

Publication Publication Date Title
NO790146L (no) Fremgangsmaate for utvinning av olje fra oljeholdige formasjoner samt overflateaktivt middel for bruk ved fremgangsmaaten
NO812648L (no) Fremgangsmaate ved fjerning av vaeske.
IT1118127B (it) Procedimento per la demetallizzazione e la desolforazione di idrocarburi pesanti
MX149300A (es) Procedimiento mejorado para la regeneracion de un aceite agotado
NO150695C (no) Fremgangsmaate for polymerbasert oljeutvinning
AU4994779A (en) Extracting liquid and gas from oil shale and tar-sand
NO801328L (no) Anordning ved rygglene.
NO146374C (no) Fremgangsmaate ved jordoljeutvinning.
SE7902735L (sv) Sjelvinstellande urtrampningslager
NO781707L (no) Anordning ved redningsredskap.
NO793398L (no) Fremgangsmaate ved fjerning av oljer eller jordoljehydrokarboner fra havoverflaten
NO149557C (no) Fremgangsmaate for oljeutvinning fra underjordiske oljekilder og overflateaktivt middel til bruk ved utfoerelse av fremgangsmaaten
NO150896C (no) Fremgangsmaate ved utvinning av hydrocarbonfluider fra en underjordisk formasjon inneholdende viskoes olje
FI793190A (fi) A-21978-antibiotika och foerfarande foer deras framstaellning
NO161139C (no) Fremgangsmaate for hydraulisk frakturering samt proppemiddel til bruk ved fremgangsmaaten.
GB2028162B (en) Grease or oil vapour filter
BE876405A (fr) Friteuse
AT364556B (de) Selbstverkaeufer
JPS54121167A (en) Oil level detector
NL7901483A (nl) Werkwijze voor het ontparaffineren van olie.
NL7800919A (nl) Werkwijze voor het verwijderen van olie of oliehoudende stoffen.
MX153928A (es) Proceso mejorado para la recuperacion de petroleo en un manto subterraneo
IT7925066A0 (it) Apparecchiature di rimozione di petrolio.
FI793257A (fi) Taetningsring foer roerstraengar vid jordolje- och jordgasledningar
NO150063C (no) Fremgangsmaate ved fjerning av en vannuloeselig, organisk forbindelse, slik som olje, fett eller voks, fra en overflate og gjenvinning av forbindelsen.