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(12) Demande de brevet: (11) CA 2816133
(54) Titre français: PROCEDE
(54) Titre anglais: METHOD
(51) Classification internationale des brevets (CIB):
  • F17D 1/17 (2006.01)
(72) Inventeurs (Pays):
  • JOHNSEN, EINAR ENG (Norvège)
  • GRANDE, KNUT VEBJORN (Norvège)
  • HOFF, ANNE (Norvège)
  • HAUGAN, MARIANNE (Norvège)
  • VINDSPOLL, HARALD (Norvège)
(73) Titulaires (Pays):
  • STATOIL CANADA LIMITED (Canada)
(71) Demandeurs (Pays):
  • STATOIL CANADA LIMITED (Canada)
(74) Agent: MARKS & CLERK
(45) Délivré:
(22) Date de dépôt: 2013-05-10
(41) Mise à la disponibilité du public: 2014-11-10
(30) Licence disponible: S.O.
(30) Langue des documents déposés: Anglais

Abrégé anglais




The present invention provides a method for preparing a pipelineable
hydrocarbon mixture from a crude heavy hydrocarbon mixture comprising:
- visbreaking said crude heavy hydrocarbon mixture at a temperature of 350
to 440 °C
and a pressure of 20 to 150 bar for 0.5 to 15 minutes to produce a visbroken
hydrocarbon mixture; and
- mixing said visbroken hydrocarbon mixture with a diluent to produce said
pipelineable
hydrocarbon mixture.


Note : Les revendications sont présentées dans la langue officielle dans laquelle elles ont été soumises.


25
CLAIMS:
1. A method for preparing a pipelineable hydrocarbon mixture from a crude
heavy
hydrocarbon mixture comprising:
- visbreaking said crude heavy hydrocarbon mixture at a temperature of 350
to 440 °C
and a pressure of 20 to 150 bar for 0.5 to 15 minutes to produce a visbroken
hydrocarbon mixture; and
- mixing said visbroken hydrocarbon mixture with a diluent to produce said
pipelineable
hydrocarbon mixture.
2. A method as claimed in claim 1, wherein said visbreaking is at a
temperature of
390 to 430 °C.
3. A method as claimed in claim 1 or 2, wherein said visbreaking is at a
pressure
of 50 to 150 bar.
4. A method as claimed in any preceding claim, wherein said visbreaking is
for 1
to 10 minutes.
5. A method as claimed in any preceding claim, wherein said visbreaking has
a
conversion of 1 to 14 %.
6. A method as claimed in claim 5, wherein said visbreaking has a
conversion of 8
to 10 %.
7. A method as claimed in any preceding claim, wherein said crude heavy
hydrocarbon mixture is separated from a heavy hydrocarbon and water mixture in
a
separator prior to said visbreaking.
8. A method as claimed in claim 7, wherein diluent is added to said heavy
hydrocarbon and water mixture prior to, or during, separation in said
separator.
9. A method as claimed in claim 8, wherein said crude heavy hydrocarbon
mixture
that undergoes visbreaking comprises 60 to 95 %wt heavy hydrocarbon and 5 to
40
%wt diluent.



26
10. A method as claimed in any preceding claim, wherein no additives are
added to
said crude heavy hydrocarbon mixture following separation from water and prior
to, or
during, said visbreaking.
11. A method as claimed in any preceding claim, further comprising
extracting a
heavy hydrocarbon and water mixture from a subterranean formation.
12. A method as claimed in claim 11, wherein said extracting is by SAGD.
13. A method as claimed in any preceding claim, wherein the API gravity of
the
crude heavy hydrocarbon mixture that undergoes visbreaking is 16 to
18°.
14. A method as claimed in any preceding claim, wherein the viscosity of
the crude
heavy hydrocarbon mixture that undergoes visbreaking is 500 to 1500 cSt at 15
°C.
15. A method as claimed in any preceding claim, wherein the API gravity of
said
visbroken hydrocarbon mixture is 17 to 19.5°.
16. A method as claimed in any preceding claim, wherein the viscosity of
said
visbroken hydrocarbon mixture is 200 to 750 cSt at 15 °C.
17. A method as claimed in any preceding claim, wherein said visbroken
hydrocarbon mixture comprises less than 3.0 %wt olefins.
18. A method as claimed in any preceding claim, wherein at least 90 %wt of
the
crude heavy hydrocarbon mixture separated from the heavy hydrocarbon and water

mixture is visbroken.
19. A method as claimed in any one of claims 1 to 17, wherein 20 to 80 %wt
of the
crude heavy hydrocarbon mixture separated from the heavy hydrocarbon and water

mixture is visbroken.

27
20. A method as claimed in any preceding claim, wherein at least 90 %wt of
said
visbroken hydrocarbon mixture is incorporated into said pipelineable
hydrocarbon
mixture.
21. A method as claimed in any preceding claim, wherein the amount of
diluent
added to said visbroken hydrocarbon mixture is 0.5 to 20 %wt based on the
total
weight of said pipelineable hydrocarbon mixture.
22. A method as claimed in any one of claims 1 to 17 and 19-21 further
comprising
mixing the visbroken hydrocarbon mixture with non-visbroken crude heavy
hydrocarbon mixture.
23. A method as claimed in any preceding claim, wherein said pipelineable
hydrocarbon mixture meets a pipeline specification.
24. A method of transporting a heavy hydrocarbon mixture recovered from a
wellsite to a refinery comprising:
- preparing a pipelineable hydrocarbon mixture from a crude heavy hydrocarbon
mixture by a method as defined in any one of claims 1 to 23 at said wellsite;
and
- pumping said pipelineable hydrocarbon mixture to said refinery.
25. A heavy hydrocarbon recovery process comprising:
- extracting a heavy hydrocarbon and water mixture from a subterranean
formation;
- adding a diluent to said heavy hydrocarbon and water mixture;
- separating a crude heavy hydrocarbon mixture from said heavy hydrocarbon and
water mixture in a separator;
- visbreaking said crude heavy hydrocarbon mixture as defined in any one of
claims 1
to 5 to produce a visbroken hydrocarbon mixture;
- mixing said visbroken hydrocarbon mixture with a diluent and optionally non-
visbroken crude heavy hydrocarbon mixture to produce a pipelineable
hydrocarbon
mixture; and
- pumping said pipelineable hydrocarbon mixture to a refinery.
26. A system for preparing a pipelineable hydrocarbon mixture from a crude
heavy
hydrocarbon mixture comprising:

28
- a separator for separating a heavy hydrocarbon and water mixture into a
crude heavy
hydrocarbon mixture and water, wherein said separator has an inlet for heavy
hydrocarbon and water mixture, an outlet for water and an outlet for crude
heavy
hydrocarbon mixture;
- a visbreaker for visbreaking said crude heavy hydrocarbon mixture having an
inlet for
crude heavy hydrocarbon mixture fluidly connected to crude heavy hydrocarbon
outlet
of said separator and an outlet for visbroken hydrocarbon mixture;
- a cooling means for cooling said visbroken hydrocarbon mixture having an
inlet for
visbroken hydrocarbon mixture fluidly connected to the visbroken hydrocarbon
mixture
outlet of said visbreaker and an outlet for cooled visbroken hydrocarbon
mixture; and
- a means for adding diluent to said cooled visbroken hydrocarbon mixture
to produce
said pipelineable hydrocarbon mixture.
27. A system as claimed in claim 26, further comprising a means for adding
diluent
to said heavy hydrocarbon and water mixture either prior to, and/or in, said
separator.
28. A system as claimed in claim 26 or 27, further comprising a heating
means in
between said separator and said visbreaker having an inlet for crude heavy
hydrocarbon mixture fluidly connected to the crude heavy hydrocarbon mixture
outlet of
said separator and an oulet for heated crude heavy hydrocarbon mixture fluidly

connected to said inlet for crude heavy hydrocarbon of said visbreaker.
29. A system as claimed in any one of claims 26 to 28, further comprising a
well
arrangement for extracting said heavy hydrocarbon and water mixture from a
subterranean formation, wherein said well arrangement is fluidly connected to
said inlet
for heavy hydrocarbon and water mixture of said separator.
30. A system as claimed in any one of claims 26 to 29 comprising:
- a well arrangement for extracting a heavy hydrocarbon and water mixture
from a
subterranean formation;
- a means for adding diluent to said heavy hydrocarbon and water mixture
either prior
to, and/or in, said separator;
- a separator for separating said heavy hydrocarbon and water mixture into
a crude
heavy hydrocarbon mixture and water, wherein said separator has an inlet for
heavy

29
hydrocarbon and water mixture fluidly connected to said well arrangement, an
outlet for
water and an outlet for crude heavy hydrocarbon mixture;
- a heating means for heating said crude heavy hydrocarbon mixture having
an inlet for
crude heavy hydrocarbon mixture fluidly connected to the crude heavy
hydrocarbon
mixture outlet of said separator and an oulet for heated crude heavy
hydrocarbon
mixture;
- a visbreaker for visbreaking said crude heavy hydrocarbon mixture having an
inlet for
crude heavy hydrocarbon mixture fluidly connected to the heated crude heavy
hydrocarbon mixture outlet of said heating means and an outlet for visbroken
hydrocarbon mixture;
- a cooling means for cooling said visbroken hydrocarbon mixture having an
inlet for
visbroken hydrocarbon mixture fluidly connected to the visbroken hydrocarbon
mixture
outlet of said visbreaker and an outlet for cooled visbroken hydrocarbon
mixture; and
- a means for adding diluent to said cooled visbroken hydrocarbon mixture
to produce
said pipelineable hydrocarbon mixture.
31. A pipelineable hydrocarbon mixture obtainable by the method of any one
of
claims 1 to 25.
32. A pipelineable hydrocarbon mixture obtained by the method of any one of

claims 1 to 25.
33. A visbroken hydrocarbon mixture obtainable by visbreaking a crude heavy

hydrocarbon mixture at a temperature of 350 to 440 C and a pressure of 20 to
150 bar
for 0.5 to 15 minutes.
34. A visbroken hydrocarbon mixture obtained by visbreaking a crude heavy
hydrocarbon mixture at a temperature of 350 to 440 C and a pressure of 20 to
150 bar
for 0.5 to 15 minutes.
35. A visbroken hydrocarbon mixture as claimed in claim 33 or 34, wherein
said
visbreaking is as defined in any one of claims 1 to 5.
36. A visbroken hydrocarbon mixture having the following properties:
an API gravity of 12 to 22 ;

30
a viscosity of 50 to 2000 cSt at 15 °C; and
an olefin content of less than 3.0 %.


Une figure unique qui représente un dessin illustrant l’invention.

Pour une meilleure compréhension de l’état de la demande ou brevet qui figure sur cette page, la rubrique Mise en garde , et les descriptions de Brevet , États administratifs , Taxes périodiques et Historique des paiements devraient être consultées.

États admin

Titre Date
(22) Dépôt 2013-05-10
(41) Mise à la disponibilité du public 2014-11-10

Taxes périodiques

Description Date Montant
Dernier paiement 2017-05-01 100,00 $
Prochain paiement si taxe applicable aux petites entités 2018-05-10 100,00 $
Prochain paiement si taxe générale 2018-05-10 200,00 $

Avis : Si le paiement en totalité n’a pas été reçu au plus tard à la date indiquée, une taxe supplémentaire peut être imposée, soit une des taxes suivantes :

  • taxe de rétablissement prévue à l’article 7 de l’annexe II des Règles sur les brevets ;
  • taxe pour paiement en souffrance prévue à l’article 22.1 de l’annexe II des Règles sur les brevets ; ou
  • surtaxe pour paiement en souffrance prévue aux articles 31 et 32 de l’annexe II des Règles sur les brevets.

Historique des paiements

Type de taxes Anniversaire Échéance Montant payé Date payée
Dépôt 400,00 $ 2013-05-10
Enregistrement de documents 100,00 $ 2013-10-24
Taxe périodique - Demande - nouvelle loi 2 2015-05-11 100,00 $ 2015-04-28
Taxe périodique - Demande - nouvelle loi 3 2016-05-10 100,00 $ 2016-04-25
Taxe périodique - Demande - nouvelle loi 4 2017-05-10 100,00 $ 2017-05-01

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Filtre Télécharger sélection en format PDF (archive Zip)
Description du
Document
Date
(yyyy-mm-dd)
Nombre de pages Taille de l’image (Ko)
Abrégé 2013-05-10 1 10
Description 2013-05-10 24 1 187
Revendications 2013-05-10 6 192
Dessins 2013-05-10 2 22
Page couverture 2014-11-18 1 32
Dessins représentatifs 2014-10-15 1 8
Poursuite-Amendment 2016-12-28 1 25
Correspondance 2013-08-12 1 21
Correspondance 2013-10-24 1 24
Poursuite-Amendment 2014-09-23 1 24