RU96106590A - METHOD FOR DISSOLVING ASPHALTIC EDUCATIONS - Google Patents

METHOD FOR DISSOLVING ASPHALTIC EDUCATIONS

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Publication number
RU96106590A
RU96106590A RU96106590/03A RU96106590A RU96106590A RU 96106590 A RU96106590 A RU 96106590A RU 96106590/03 A RU96106590/03 A RU 96106590/03A RU 96106590 A RU96106590 A RU 96106590A RU 96106590 A RU96106590 A RU 96106590A
Authority
RU
Russia
Prior art keywords
fraction
oil
mainly
group
dissolving
Prior art date
Application number
RU96106590/03A
Other languages
Russian (ru)
Other versions
RU2158357C2 (en
Inventor
Дельбьянко Альберто
Стропппа Фабрицио
Original Assignee
Аджип С.п.А.
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
Priority claimed from ITMI950711A external-priority patent/IT1273513B/en
Application filed by Аджип С.п.А. filed Critical Аджип С.п.А.
Publication of RU96106590A publication Critical patent/RU96106590A/en
Application granted granted Critical
Publication of RU2158357C2 publication Critical patent/RU2158357C2/en

Links

Claims (7)

1. Способ растворения асфальтеновых образований нефтяных скважин, который заключается в введении солюбилизирующей композиции для вышеуказанных асфальтенов в нефтяные скважины, отличающийся тем, что солюбилизирующая композиция включает: (а) в основном углеводородную фракцию, состоящую из по меньшей мере 70% ароматических и алкилароматических углеводородов, причем алкильная группа является С1-С4-группой; (б) фракцию, в основном состоящую из хинолина и изохинолина как таковых или алкилзамещенных, причем алкильная группа является С1-С4-группой, причем массовое соотношение между фракциями (а) и (б) составляет от 97,5/2,5 до 75/25.1. The method of dissolving asphaltene formations of oil wells, which consists in introducing a solubilizing composition for the above asphaltenes into oil wells, characterized in that the solubilizing composition includes: (a) a mainly hydrocarbon fraction consisting of at least 70% aromatic and alkylaromatic hydrocarbons, wherein the alkyl group is a C 1 -C 4 group; (b) a fraction mainly consisting of quinoline and isoquinoline as such or alkyl substituted, wherein the alkyl group is a C 1 -C 4 group, and the mass ratio between fractions (a) and (b) is from 97.5 / 2.5 up to 75/25. 2. Способ по п. 1, отличающийся тем, что фракция (а) состоит из по меньшей мере 80 мас. % ароматических и алкилароматических углеводородов, а фракция (б) в основном состоит из незамещенного хинолина и изохинолина. 2. The method according to p. 1, characterized in that fraction (a) consists of at least 80 wt. % aromatic and alkylaromatic hydrocarbons, and fraction (b) mainly consists of unsubstituted quinoline and isoquinoline. 3. Способ по п. 1 или 2, отличающийся тем, что массовое соотношение между фракциями (а) и (б) находится между 97/3 и 90/10. 3. The method according to p. 1 or 2, characterized in that the mass ratio between fractions (a) and (b) is between 97/3 and 90/10. 4. Способ по п. 1, отличающийся тем, что композиция (а) + (б) в основном состоит из фракции, называемой "Wash oil" (Скрубберное масло), происходящей из перегонки каменноугольного дегтя, как таковой или к которой добавлена фракция (б). 4. The method according to p. 1, characterized in that the composition (a) + (b) mainly consists of a fraction called "Wash oil" (Scrubber oil), resulting from the distillation of coal tar, as such or to which the fraction is added ( b) 5. Способ по п. 1, отличающийся тем, что фракция (а) является погоном газойля от жидкого топлива из парофазного крекинга. 5. The method according to p. 1, characterized in that the fraction (a) is the overhead of gas oil from liquid fuel from vapor cracking. 6. Способ по п. 1, отличающийся тем, что фракция (а) является ЛРГ (LCO) из жидкостного каталитического крекинга (ЖКК). 6. The method according to p. 1, characterized in that fraction (a) is LRH (LCO) from liquid catalytic cracking (HLC). 7. Способ по п. 1, отличающийся тем, что фракция (а) является дехинолированным WO. 7. The method according to p. 1, characterized in that fraction (a) is dequinolated WO.
RU96106590/03A 1995-04-07 1996-04-05 Method of dissolving of asphaltene formations RU2158357C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI950711A IT1273513B (en) 1995-04-07 1995-04-07 EFFECTIVE COMPOSITION IN THE REMOVAL OF ASPHALTENES
ITMI95/A000711 1995-04-07

Publications (2)

Publication Number Publication Date
RU96106590A true RU96106590A (en) 1998-07-20
RU2158357C2 RU2158357C2 (en) 2000-10-27

Family

ID=11371250

Family Applications (1)

Application Number Title Priority Date Filing Date
RU96106590/03A RU2158357C2 (en) 1995-04-07 1996-04-05 Method of dissolving of asphaltene formations

Country Status (9)

Country Link
US (1) US5690176A (en)
EP (1) EP0737798B1 (en)
CN (1) CN1080755C (en)
CA (1) CA2171797C (en)
DE (1) DE69627414T2 (en)
DK (1) DK0737798T3 (en)
ES (1) ES2194068T3 (en)
IT (1) IT1273513B (en)
RU (1) RU2158357C2 (en)

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US7087189B2 (en) * 2002-03-18 2006-08-08 National Starch Chemical Investment Holding Co Multifunctional calcium carbonate and calcium phosphate scale inhibitor
RO120498B1 (en) * 2003-06-13 2006-02-28 Nicolae Şlemcu Composition and process for treating oils
CN100427568C (en) * 2003-12-18 2008-10-22 石油大学(北京) Ion liquid solvent for dissolving and removing asphaltene deposit and preparing method thereof, and method for removing asphaltene and regeneration method of the ion liquid solvent
JP2006241181A (en) * 2005-02-28 2006-09-14 Sekiyu Combinat Kodo Togo Unei Gijutsu Kenkyu Kumiai Method for preventing fouling of heat exchanger for cooling residual oil of hydrogenation-desulfurizing decomposition process
US7976640B2 (en) 2005-04-04 2011-07-12 Exxonmobil Research & Engineering Company On-line heat exchanger cleaning method
EA014005B1 (en) * 2006-01-18 2010-08-30 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. Method and system for washing the internals of a vessel for processing a heavy hydrocarbon stream
US20080047874A1 (en) * 2006-08-23 2008-02-28 Exxonmobil Research And Engineering Company Crude oil blending to reduce organic-based fouling of pre-heat train exchangers and furnaces
GB2459471B (en) * 2008-04-23 2010-07-14 Schlumberger Holdings Forecasting asphaltic precipitation
GB2459470B (en) 2008-04-23 2010-07-21 Schlumberger Holdings Solvent assisted oil recovery
US9328284B2 (en) 2011-10-04 2016-05-03 Biospan Technologies, Inc. Oil thinning compositions and retrieval methods
RU2520954C1 (en) * 2013-03-12 2014-06-27 Федеральное государственное бюджетное учреждение науки Институт проблем нефти и газа Сибирского отделения Российской академии наук (ИПНГ СО РАН) Method for determining and evaluating effectiveness of asphalt paraffin deposit solvents
WO2015038117A1 (en) * 2013-09-11 2015-03-19 Halliburton Energy Services, Inc. Asphaltene-dissolving oil-external emulsion for acidization and methods of using the same
US10330662B2 (en) * 2013-11-18 2019-06-25 INDIAN INSTITUTE OF TECHNOLOGY MADRAS (IIT Madras) Systems and methods for screening solvents for dissolving tank bottom sludge
WO2016156584A1 (en) 2015-04-03 2016-10-06 Versalis S.P.A. Mixture of solvents for removing asphaltenes
US10781378B2 (en) 2017-12-05 2020-09-22 Fqe Chemicals Inc. Compositions and methods for dissolution of heavy organic compounds

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FR844998A (en) * 1938-10-21 1939-08-07 Bataafsche Petroleum Process for restoring or increasing production from oil or gas wells
US2419755A (en) * 1943-05-26 1947-04-29 Union Oil Co Chemical treatment of oil sands
US3172473A (en) * 1962-06-28 1965-03-09 Crowley Tar Products Company I Method of improving well flow
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IT1271473B (en) * 1993-09-17 1997-05-28 Agip Spa HYDROCARBON MIXTURE EFFECTIVE IN THE REMOVAL OF ASPHALTENES

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