Canadian Patents Database / Patent 2864788 Summary

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(12) Patent: (11) CA 2864788
(54) English Title: IN SITU UPGRADING VIA HOT FLUID INJECTION
(54) French Title: VALORISATION IN-SITU PAR LE BIAIS D'UNE INJECTION DE FLUIDE CHAUD
(51) International Patent Classification (IPC):
  • C10G 31/06 (2006.01)
  • C10G 21/00 (2006.01)
  • E21B 43/22 (2006.01)
  • E21B 43/24 (2006.01)
  • E21B 43/30 (2006.01)
  • E21B 43/38 (2006.01)
  • E21B 43/40 (2006.01)
(72) Inventors (Country):
  • PEREIRA-ALMAO, PEDRO RAFAEL (Canada)
  • CHEN, ZHANGXING (United States of America)
  • MAINI, BRIJ (Canada)
  • SCOTT, CARLOS EDUARDO (Canada)
(73) Owners (Country):
  • IN SITU UPGRADING TECHNOLOGIES INC. (Canada)
(71) Applicants (Country):
  • IN SITU UPGRADING TECHNOLOGIES INC. (Canada)
(74) Agent: HICKS & ASSOCIATES
(45) Issued: 2016-05-31
(22) Filed Date: 2013-03-19
(41) Open to Public Inspection: 2013-11-30
Examination requested: 2014-09-23
(30) Availability of licence: N/A
(30) Language of filing: English

(30) Application Priority Data:
Application No. Country Date
61/654,034 United States of America 2012-05-31

English Abstract

The invention relates to systems, apparatus and methods for integrated recovery and in-situ (in reservoir) upgrading of heavy oil and oil sand bitumens. The systems, apparatus and methods enable enhanced recovery of heavy oil in a production well by introducing a hot fluid including a vacuum or atmospheric residue fraction or deasphalted oil into the production well under conditions to promote hydrocarbon upgrading. The methods may further include introducing hydrogen and a catalyst together with the injection of the hot fluid into the production well to further promote hydrocarbon upgrading reactions. In addition, the invention relates to enhanced oil production methodologies within conventional oil reservoirs.


French Abstract

Linvention concerne des systèmes, un appareil et des procédés permettant de réaliser simultanément la récupération et la valorisation sur site (dans la roche réservoir) des huiles lourdes et des bitumes de sables pétrolifères. Ces systèmes, cet appareil et ces procédés permettent une meilleure récupération de lhuile lourde dans un puits de production, par introduction sous pression atmosphérique ou par aspiration par le vide, dun fluide chaud dans le puits de production dans des conditions permettant de favoriser la valorisation dhydrocarbures, ce fluide chaud comprenant une fraction résiduelle ou une huile désasphaltée. Ces procédés peuvent également inclure lintroduction dhydrogène et dun catalyseur simultanément avec linjection du fluide chaud dans le puits de production de façon à favoriser encore plus les réactions de valorisation dhydrocarbures. Linvention concerne également des procédés de production améliorés dhuiles au sein des roches réservoirs dhuiles conventionnelles.


Note: Claims are shown in the official language in which they were submitted.

CLAIMS
1. A method of upgrading heavy hydrocarbons during hydrocarbon recovery from a
heavy
hydrocarbon formation comprising the steps of:
a) drilling an injection well and recovery well into the heavy hydrocarbon
formation;
b) creating a hydrocarbon mobilization chamber within the heavy hydrocarbon
formation by introducing a hot injection fluid into the injection well so as
to
promote hydrocarbon mobility to the recovery well;
c) recovering heavy hydrocarbons from the recovery well to the surface;
d) subjecting the recovered hydrocarbons from step c) to a separation process
to
form lighter hydrocarbon fractions and heavy residual hydrocarbon fractions;
e) introducing a portion or all of the heavy residual hydrocarbon fractions at
a
temperature and pressure to promote hydrocarbon upgrading reactions in the
hydrocarbon mobilization chamber; and
f) recovering co-mingled and upgraded hydrocarbons from the recovery well.
2. The method as in claim 1 wherein a portion of the heavy hydrocarbon
residual fractions from
the separation process is used as a fuel to produce heat to heat the hot
injection fluid for
upgrading reactions.
3. The method as in claim 1 or 2 further comprising the step of subjecting a
portion of the
lighter hydrocarbon fractions to additional separation processes for forming
additional
hydrocarbon fractions.
4. The method as in any one of claims 1-3 wherein step e) includes introducing
a catalyst into
the injection well to promote catalytic upgrading within the injection well
and the
hydrocarbon mobilization chamber.
5. The method as in any one of claims 1-4 wherein step e) further includes
introducing
hydrogen into the injection well to promote upgrading reactions within the
hydrocarbon
mobilization chamber.
6. A method of upgrading heavy hydrocarbons during hydrocarbon recovery from a
heavy
hydrocarbon formation comprising the steps of:
a) drilling an injection well and recovery well into the heavy hydrocarbon
formation;
-36-

b) creating a hydrocarbon mobilization chamber within the heavy hydrocarbon
formation by introducing a hot injection fluid into the injection well so as
to
promote hydrocarbon mobility to the recovery well;
c) recovering heavy hydrocarbons from the recovery well to the surface;
d) subjecting the recovered hydrocarbons from step c) to a solvent
deasphalting
separation process to form a deasphalted oil and an asphaltic pitch;
e) introducing the deasphalted oil from step d) into the injection well at a
temperature and pressure to promote hydrocarbon upgrading reactions in the
hydrocarbon mobilization chamber; and
f) recovering co-mingled and upgraded hydrocarbons from the recovery well.
7. The method as in claim 6 wherein a portion of the asphaltic pitch is used
as a fuel to
produce heat to heat the hot injection fluids prior to introduction into the
well.
8. The method as in claim 7 further comprising the step of prior to step d)
subjecting the heavy
hydrocarbons to a separation process to form a heavy oil fraction and lighter
fractions and
where at least a portion of the lighter fractions are removed for
commercialization.
9. The method as in any one of claims 6-8 further comprising the step of
subjecting
hydrocarbons recovered from the recovery well to a submicronizer process to
form sub-
micron sized particles of the hydrocarbons.
10. The method as in any one of claims 7-9 further comprising the step of
introducing
hydrocarbons recovered from the recovery well into a storage tank for
subsequent
processing.
11. The method as in claim 10 further comprising the step of recovering and
treating gases from
the storage tank and wherein treated gases are admixed with the deasphalted
oil prior to
introduction into a furnace used for heating deasphalted oil.
12. The method as in any one of claims 6-11 further comprising the step of
admixing the
deasphalted oil with any one of or a combination of hydrogen and catalyst
prior to injection
of deasphalted oil into the injection well.
13. A system for recovery and in situ upgrading of heavy hydrocarbons within a
heavy
hydrocarbon formation comprising:
an injection well; and

-37-

a recovery well;
the injection well and the recovery well operatively connected to a solvent
deasphalting system for recovering a deasphalted oil fraction for mixing with
an
injection fluid for injection into the injection well.
14. The system as in claim 13 further comprising:
a furnace operatively connected to the solvent deasphalting system for heating

deasphalted oil prior to injection into the injection well.
15. The system as in any one of claims 13-14 further comprising:
a storage tank operatively connected to the solvent deasphalting system for
storing a
volume of recovered hydrocarbons prior to further processing.
16. The system as in claim 15 further comprising:
a separation system operatively connected between the storage tank and solvent

deasphalting system for separating recovered hydrocarbons into a heavy oil
fraction and
lighter fractions and where at least a portion of the lighter fractions are
removed for
commercialization.
17. The system as in any one of claims 14-16 wherein the solvent deasphalting
system further
recovers a deasphalted pitch portion and the recovered deasphalted pitch
portion is
operatively connected to the furnace for use as a fuel.
18. The system as in claim 17 further comprising a submicronizer system
operatively connected
to the recovery well for forming sub-micron sized particles of the
hydrocarbons recovered
from the recovery well.
19. The system as in any one of claims 13-18 further comprising a hydrogen
system operatively
connected to the injection well for injecting hydrogen into the injection
well.
20. The method as in any one of claims 1-12 where the injection well and
recovery well are a
single well.
21. The system as in any one of claims 13-19 where the injection well and
recovery well are a
single well.

-38-


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Admin Status

Title Date
(22) Filed 2013-03-19
(41) Open to Public Inspection 2013-11-30
Examination Requested 2014-09-23
(45) Issued 2016-05-31

Maintenance Fee

Description Date Amount
Last Payment 2017-03-02 $50.00
Next Payment if small entity fee 2018-03-19 $100.00
Next Payment if standard fee 2018-03-19 $200.00

Note : If the full payment has not been received on or before the date indicated, a further fee may be required which may be one of the following

  • the reinstatement fee set out in Item 7 of Schedule II of the Patent Rules;
  • the late payment fee set out in Item 22.1 of Schedule II of the Patent Rules; or
  • the additional fee for late payment set out in Items 31 and 32 of Schedule II of the Patent Rules.

Payment History

Fee Type Anniversary Year Due Date Amount Paid Paid Date
Request for Examination $400.00 2014-09-23
Filing $200.00 2014-09-23
Maintenance Fee - Application - New Act 2 2015-03-19 $50.00 2015-03-04
Maintenance Fee - Application - New Act 3 2016-03-21 $50.00 2016-03-07
Final $150.00 2016-03-17
Maintenance Fee - Patent - New Act 4 2017-03-20 $50.00 2017-03-02

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Drawings 2015-01-30 10 99
Abstract 2014-09-23 1 17
Description 2014-09-23 35 1,676
Claims 2014-09-23 4 129
Drawings 2014-09-23 10 95
Representative Drawing 2014-10-10 1 6
Cover Page 2014-10-14 1 39
Description 2015-01-30 35 1,698
Claims 2015-01-30 3 122
Description 2015-05-27 35 1,694
Drawings 2015-05-27 10 101
Claims 2015-05-27 3 125
Claims 2015-09-11 3 129
Drawings 2015-09-11 10 101
Cover Page 2016-04-12 1 40
Prosecution-Amendment 2015-02-27 4 224
Correspondence 2014-09-30 1 147
Prosecution-Amendment 2014-10-08 1 4
Prosecution-Amendment 2014-10-31 4 247
Prosecution-Amendment 2014-12-31 2 51
Correspondence 2014-12-31 2 51
Correspondence 2015-01-26 1 23
Correspondence 2015-01-23 7 277
Prosecution-Amendment 2015-01-30 40 1,398
Prosecution-Amendment 2015-05-27 10 331
Prosecution-Amendment 2015-06-12 3 204
Prosecution-Amendment 2015-09-11 6 185
Correspondence 2016-03-17 3 64