FR2484603A2 - Reducing viscosity of heavy oils - by dissolving specified amt. of carbon di:oxide in oil - Google Patents

Reducing viscosity of heavy oils - by dissolving specified amt. of carbon di:oxide in oil Download PDF

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Publication number
FR2484603A2
FR2484603A2 FR8010687A FR8010687A FR2484603A2 FR 2484603 A2 FR2484603 A2 FR 2484603A2 FR 8010687 A FR8010687 A FR 8010687A FR 8010687 A FR8010687 A FR 8010687A FR 2484603 A2 FR2484603 A2 FR 2484603A2
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France
Prior art keywords
oil
viscosity
heavy oils
oxide
carbon
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Legal status (The legal status 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 status listed.)
Granted
Application number
FR8010687A
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French (fr)
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FR2484603B2 (en
Inventor
Charles Bardon
Jean-Francois Le Page
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IFP Energies Nouvelles IFPEN
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IFP Energies Nouvelles IFPEN
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Priority to FR8010687A priority Critical patent/FR2484603A2/en
Publication of FR2484603A2 publication Critical patent/FR2484603A2/en
Application granted granted Critical
Publication of FR2484603B2 publication Critical patent/FR2484603B2/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/005—Pipe-line systems for a two-phase gas-liquid flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/08—Pipe-line systems for liquids or viscous products
    • F17D1/16—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

The viscosity of heavy oils is reduced by dissolving CO2 in the oil according to the Parent Patent, with the improvement that CO2 is dissolved in the desalted oil in an amt. of 20-120 (pref. 25-80) normal cubic m per cubic m of oil. The process facilitates pipeline transport of the oil. The best results are obtd. using the indicated amt. of CO2. The oil pref. has a viscosity of at least 10,000 cS at 40 deg.C. The CO2 can be generated by burning a portion of the oilor the heavy residue from a preflash unit. In an example, a portion (3 wt.%) of an oil having a density of 0.99 and a 40 deg.C viscosity of 12,000 cS was burned and the CO2 (after purificn.) was dissolved in the rest of the oil at 40 deg.C and 65 bar. Using 50 normal cubic m of CO2 per cubic m of oil, the viscosity was reduced to 270 cS.

Description

Le brevet principal concerne un procédé visant à la valorisation d'huiles lourdes de très haute viscosité qui nepeuvent être transportées dans les conditions habituelles d'utilisation des oléoducs actuellement en fonctionnement. Ces huiles lourdes, ou de façon plus précise, ces pétroles bruts lourds sont des produits dont la densité est-généralement su périeure à 0,95 et dont la viscosité à 400C peut dépasser 10.000 centi
stokes (10 m /sect, telles, par exemple, les huiles lourdes issues des sables de l'Athabasca ou de la ceinture de l'Orénoque. The main patent relates to a process aiming at the valorization of heavy oils of very high viscosity which cannot be transported under the usual conditions of use of oil pipelines currently in operation. These heavy oils, or more precisely, these heavy crude oils are products whose density is generally greater than 0.95 and whose viscosity at 400C can exceed 10,000 centi
stokes (10 m / sect, such as, for example, heavy oils from the sands of Athabasca or the Orinoco belt.

Selon le brevet principal, le procédé consiste à dissoudre du gaz
carbonique dans au moins une partie de l'huile visqueuse que l'on désire acheminer d'un point à un autre, en vue ainsi d'abaisser la viscosité de l'huile et de pouvoir la transporter plus facilement. On a maintenant découvert que les meilleurs résultats sont obtenus en dissolvant 20 à 120
3 3 normaux m de C02 par m d'huile et de préférence en dissolvant 25 à 80
3 3 normaux m de C02 par m d'huile. According to the main patent, the process consists in dissolving gas
carbon dioxide in at least part of the viscous oil which it is desired to convey from one point to another, in order to lower the viscosity of the oil and to be able to transport it more easily. We have now discovered that the best results are obtained by dissolving 20 to 120
3 3 normal m of C02 per m of oil and preferably by dissolving 25 to 80
3 3 normal m of C02 per m of oil.

Le gaz carbonique nécessaire pour abaisser la viscosité de l'huile peut être obtenu par brûlage, selon les méthodes connues, d'une fraction de ladite huile, ainsi qu'il a ete expliqué dans le brevet principal. The carbon dioxide necessary to lower the viscosity of the oil can be obtained by burning, according to known methods, a fraction of said oil, as has been explained in the main patent.

On peut utiliser également du C02 obtenu par brûlage de résidus
lourds venant d'unités de "préflash" nécessaires à la production, de solvants légers pour les installations de dessalage.C02 obtained by burning residues can also be used
heavy from preflash units necessary for production, light solvents for desalting plants.

Mais on peut utiliser touteautre source adéquate de C02 : ainsi, par exemple, si le champs est exploité en récupération assistée par injection de C02, on peut utiliser une partie du C02 disponible pour l'injection ou provenant des séparateurs. But we can use any other suitable source of C02: thus, for example, if the field is exploited in assisted recovery by injection of C02, we can use part of the C02 available for injection or coming from the separators.

EXEMPLE 1
On brûle l'équivalent de 3% en poids environ d'une huile de densité voisine de 0,99 et de viscosité, à 4000, égale à 12.000 centistokes soit 12 x 10 m /sec. On produit ainsi du gaz carbonique, lequel, après séparation des gaz brûlés et après purification, est dissous dans le reste de 3 l'huile à 40 C et sous 95 bars avec une concentration de 50 normaux m de C 2 par m d'huile. On obtient ainsi une huile dont la viscosité est 270 centistokes. (270 x 1O6m2/sec) à 4000. (1 centistoke = 106m2/sec). EXAMPLE 1
The equivalent of about 3% by weight of an oil of density close to 0.99 and of viscosity, at 4000, equal to 12,000 centistokes or 12 x 10 m / sec, is burned. Carbon dioxide is thus produced, which, after separation of the burnt gases and after purification, is dissolved in the rest of the oil at 40 C and under 95 bars with a concentration of 50 normal m 2 of C 2 per m of oil . An oil is thus obtained whose viscosity is 270 centistokes. (270 x 1O6m2 / sec) at 4000. (1 centistoke = 106m2 / sec).

EXEMPLE 2
On brûle l'équivalent de 2% environ de l'huile utilisée dans l'exem- ple 1, dont la viscosité à 660C est 1000 centistokes soit 10 3m2/sec. EXAMPLE 2
The equivalent of about 2% of the oil used in Example 1 is burned, the viscosity at 660C is 1000 centistokes, ie 10 3m2 / sec.

On dissout le gaz carbonique dans l'huile de façon à ce que la con
3 3 centration en C02 soit de 34 normaux m Cen volume) par m d'huile. La viscosité obtenue de l'huile est alors 150 centistokes t150 x 10 6m /sec)
à 660C. The carbon dioxide is dissolved in the oil so that the con
3 3 centering in C02 or 34 normal m Cen volume) per m of oil. The viscosity obtained from the oil is then 150 centistokes t150 x 10 6m / sec)
at 660C.

Claims (4)

REVENDICATIONS 1.- Procédé selon la revendication I du brevet principal pour abaisser la viscosité d'une huile lourde caractérisé en ce que, après avoir procédé au dessalage de ladite huile, on y dissout 20 à 120 normaux m3 de C02 3 par.m d'huile. 1.- Method according to claim I of the main patent for lowering the viscosity of a heavy oil characterized in that, after having carried out the desalting of said oil, 20 to 120 normal m3 of C02 3 par.m of are dissolved therein oil. 2.- Procédé selon la revendication 1, dans lequel on dissout 25 à 80 nor 3 3 maux m de C02 par m d'huile. 2. A process according to claim 1, in which 25 to 80 nor 3 3 evils m of CO 2 are dissolved per m of oil. 3.- Utilisation du procédé selon l'une des revendications 1 et 2 pour abaisser la viscosité d'une huile lourde dont la viscosité à 400C est voisine ou supérieure à 10.000 centistokes (IO2m2/sec.). 3.- Use of the method according to one of claims 1 and 2 to lower the viscosity of a heavy oil whose viscosity at 400C is close to or greater than 10,000 centistokes (IO2m2 / sec.). 4.- Utilisation du procédé selon l'une des revendications 1 et 2 pour le transport d'une huile lourde d'un point à un autre. 4.- Use of the method according to one of claims 1 and 2 for the transport of a heavy oil from one point to another.
FR8010687A 1980-05-09 1980-05-09 Reducing viscosity of heavy oils - by dissolving specified amt. of carbon di:oxide in oil Granted FR2484603A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8010687A FR2484603A2 (en) 1980-05-09 1980-05-09 Reducing viscosity of heavy oils - by dissolving specified amt. of carbon di:oxide in oil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8010687A FR2484603A2 (en) 1980-05-09 1980-05-09 Reducing viscosity of heavy oils - by dissolving specified amt. of carbon di:oxide in oil

Publications (2)

Publication Number Publication Date
FR2484603A2 true FR2484603A2 (en) 1981-12-18
FR2484603B2 FR2484603B2 (en) 1983-02-04

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Family Applications (1)

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FR8010687A Granted FR2484603A2 (en) 1980-05-09 1980-05-09 Reducing viscosity of heavy oils - by dissolving specified amt. of carbon di:oxide in oil

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FR (1) FR2484603A2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6491053B1 (en) * 1999-05-24 2002-12-10 William H. Briggeman Method and system for reducing the viscosity of crude oil
US6644334B2 (en) 2000-05-05 2003-11-11 William H. Briggeman Method and system for reducing the viscosity of crude oil employing engine exhaust gas
WO2014152293A1 (en) * 2013-03-15 2014-09-25 Saudi Arabian Oil Company System and process for handling heavy oil residue
EP2681412A4 (en) * 2011-03-03 2015-07-29 Halliburton Energy Services Inc Dispersing separated hydrocarbon gas into separated oil during surface well testing for improved oil mobility
WO2015171879A1 (en) * 2014-05-07 2015-11-12 Saudi Arabian Oil Company System and process for handling heavy oil residue
US10240101B2 (en) 2013-03-15 2019-03-26 Saudi Arabian Oil Company Process for combustion of heavy oil residue

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1490857A (en) * 1965-08-27 1967-08-04 Shell Int Research A method is apparatus for pumping through an oleodide an oil containing paraffin
US3618624A (en) * 1970-02-26 1971-11-09 Cities Service Oil Co Fluid pipelining

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1490857A (en) * 1965-08-27 1967-08-04 Shell Int Research A method is apparatus for pumping through an oleodide an oil containing paraffin
US3618624A (en) * 1970-02-26 1971-11-09 Cities Service Oil Co Fluid pipelining

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6491053B1 (en) * 1999-05-24 2002-12-10 William H. Briggeman Method and system for reducing the viscosity of crude oil
US6644334B2 (en) 2000-05-05 2003-11-11 William H. Briggeman Method and system for reducing the viscosity of crude oil employing engine exhaust gas
EP2681412A4 (en) * 2011-03-03 2015-07-29 Halliburton Energy Services Inc Dispersing separated hydrocarbon gas into separated oil during surface well testing for improved oil mobility
WO2014152293A1 (en) * 2013-03-15 2014-09-25 Saudi Arabian Oil Company System and process for handling heavy oil residue
JP2016517501A (en) * 2013-03-15 2016-06-16 サウジ アラビアン オイル カンパニー System and method for handling heavy oil residues
US10240101B2 (en) 2013-03-15 2019-03-26 Saudi Arabian Oil Company Process for combustion of heavy oil residue
WO2015171879A1 (en) * 2014-05-07 2015-11-12 Saudi Arabian Oil Company System and process for handling heavy oil residue
JP2017520726A (en) * 2014-05-07 2017-07-27 サウジ アラビアン オイル カンパニー System and method for handling heavy oil residues

Also Published As

Publication number Publication date
FR2484603B2 (en) 1983-02-04

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