EP2847422A2 - Device and method for extracting carbon-containing substances from oil sand - Google Patents
Device and method for extracting carbon-containing substances from oil sandInfo
- Publication number
- EP2847422A2 EP2847422A2 EP13733976.8A EP13733976A EP2847422A2 EP 2847422 A2 EP2847422 A2 EP 2847422A2 EP 13733976 A EP13733976 A EP 13733976A EP 2847422 A2 EP2847422 A2 EP 2847422A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- steam
- generator
- cycle
- bitumen
- oil sands
- Prior art date
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000003027 oil sand Substances 0.000 title claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract 4
- 229910052799 carbon Inorganic materials 0.000 title abstract 4
- 239000000126 substance Substances 0.000 title abstract 4
- 239000010426 asphalt Substances 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000003575 carbonaceous material Substances 0.000 claims description 28
- 238000004519 manufacturing process Methods 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 19
- 238000002347 injection Methods 0.000 claims description 19
- 239000007924 injection Substances 0.000 claims description 19
- 229930195733 hydrocarbon Natural products 0.000 claims description 10
- 150000002430 hydrocarbons Chemical class 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 33
- 239000007789 gas Substances 0.000 description 10
- 239000000839 emulsion Substances 0.000 description 9
- 238000011065 in-situ storage Methods 0.000 description 7
- 238000011109 contamination Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000009969 flowable effect Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 238000005065 mining Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000010796 Steam-assisted gravity drainage Methods 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/04—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by extraction
- C10G1/047—Hot water or cold water extraction processes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/002—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal in combination with oil conversion- or refining processes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
Definitions
- the invention relates to a device and a method for obtaining carbonaceous substances, in particular bitumen, from oil sands.
- Oil sands are a mixture of rock, clay, sand, water and bitumen or other heavy oils.
- bitumen can be converted into synthetic crude oil.
- Oil sands occurrences are, if they lower in Erdstoffen
- Depth are preferably mined in the open pit. In many cases, however, are oil sands deposits in deeper layers of the earth, which are not accessible to open-pit mining or their mining would be unprofitable in open-pit mining. Typically, oil sands deposits are mined from depths of about 60m with so-called in situ method. Since in these methods, the degradation of the top layer, which is above the oil sands occurrence, is not necessary.
- the most widely used in situ method is Steam Assisted Gravity Drainage (SAGD).
- SAGD Steam Assisted Gravity Drainage
- the bitumen present in a soil in the soil is heated by superheated steam. Due to the heat effect, the long-chain hydrocarbons of the high-viscosity bitumen are split. The heating of the oil sand leads to a reduction in the viscosity of the bitumen, which thereby becomes flowable and can be conventionally pumped out of the deposit.
- the apparatus for the sawing process comprises at least one injection pipe for feeding the hot steam into the deposit and a production pipeline through which the liquid bitumen from the deposit can be conveyed to the earth's surface.
- Production pipelines are laid essentially parallel to each other and horizontally one above the other within the deposit.
- the injection pipe and the production pipe usually have a distance of about 5m to 10m in the vertical direction to each other. In the horizontal direction, the pipes extend within the deposit on a length of several 100m and a few kilometers.
- the injection tubing is typically above the production tubing. By heating and reducing the viscosity of the bitumen, the bitumen flows downwards due to gravity and thus to the production pipeline, where it can be pumped off in a simple manner and conveyed to the earth's surface.
- the production can be achieved either with lifting oil pumps or by introducing an overpressure in the deposit.
- the introduction of overpressure has the significant disadvantage that it may come in the vicinity of the deposit to the ground surface (blowout).
- the layer of soil above the deposit is of small thickness.
- the vapor pressure before introduction into the deposit is reduced by means of a throttle or a throttle valve to a pressure which is lower than the rock pressure in the region of the deposit.
- the throttle valve is arranged between the steam generator and the injection pipeline. Since the vapor pressure is dissipated unused in the throttle valve, the process is not very effective.
- EMGD Electro Magnetic Gravity Drainage
- the heating of the deposit takes place by means of an electric / electromagnetic heating process, in which, in particular, an inductive heating takes place.
- the EMGD method is disclosed in the German patent application 10 2007 040605.5 entitled “Device for in situ production of bitumen or heavy oil" by the applicant The EMGD method is also associated with a high expenditure of energy.
- Object of the present invention is therefore to further develop the known in situ method such that the efficiency of the device is increased.
- the device according to the invention for obtaining carbonaceous substances, in particular bitumen from oil sands comprises at least two separate steam circuits, wherein:
- the first steam cycle comprises at least a first steam generator and a steam turbine connected to the first steam generator with embdampfentnähme;
- the second steam cycle at least a second
- Steam generator in particular in the form of a first heat exchanger, an injection pipe, a production pipeline and a water treatment plant, wherein via the injection pipe steam is introduced into the oil sand, the carbonaceous substances from the oil sands can be discharged via the production line and the bitumen separated from the water in the water treatment plant is;
- the insects are in operative connection with the first heat exchanger of the second steam cycle.
- the second steam circuit serves to generate steam, which can be passed through the injection pipes in the reservoir of oil sands.
- the steam heats the deposit and thus the oil sands, causing the long-chain hydrocarbons to split.
- the viscosity of the bitumen is reduced, making the bitumen flowable becomes.
- the flowable bitumen sinks due to gravity down and can then be promoted as bitumen-water emulsion to light.
- simple lifting oil pumps are.
- the bitumen-water emulsion can then be processed in a corresponding treatment plant, wherein the water of the bitumen-water emulsion can be supplied to the second steam cycle via a corresponding return lines.
- the inventive design of the apparatus for recovering carbonaceous substances from oil sands with two separate steam cycles thus provides a circuit with "clean" steam, which serves to operate the steam turbine, and an open circuit with "contaminated” steam for heating the oil sand deposits in front.
- the additional electrical / electromagnetic heating results in a particularly rapid and good heating of the oil sands deposit, whereby a particularly good splitting of the long-chain hydrocarbons takes place and a rapid reduction in viscosity is made possible.
- the deposit can be optimally degraded. Because the first generator sits directly on the drive side of the steam turbine, the electric current is used for electrical / electromagnetic heating without great losses, which results in a high efficiency of the device according to the invention.
- a further embodiment of the invention provides that the device has at least one heat engine, in particular a gas turbine, which is the output side connected to a second generator for generating electricity and the electric current, which is generated by means of the second generator, for simultaneous or alternative heating of the oil sands by means of the electric / electromagnetic heating is used.
- the electric / electromagnetic heating can be designed correspondingly more efficient and adapted to the existing ⁇ lsandvorkom- men.
- the electrical / electromagnetic heating can preferably be operated exclusively by the heat engine, exclusively by the steam turbine or both by the steam turbine and the heat engine or their connected generators. Depending on the generated electrical
- the generators can additionally supply power for ancillaries or feed electricity into an electrical grid.
- a further embodiment of the invention provides that the steam generation takes place in the first steam cycle by means of a second heat exchanger, wherein the hot exhaust gas of the heat engine is used to generate steam in the first steam cycle.
- the efficiency of the device according to the invention can be increased.
- the heat dissipation is preferably carried out in a heat exchanger, wherein the exhaust gas flows through the heat exchanger in countercurrent to the water / steam of the first steam cycle.
- the carbonaceous substance in particular bitumen
- the carbonaceous substance is removed from the oil sand via a separate steam cycle from the oil sands deposit or from the oil sand deposits and does not come into connection with the steam cycle which serves to operate the steam turbine.
- This is a "contaminated" steam cycle, which may contain components of bitumen and a “clean” closed steam cycle for operating the steam turbine before.
- the two independent steam cycles ensure high reliability and reduce the cost of the steam turbine, as there is no contamination and thus the materials for the steam turbine can be of lower quality than those previously used.
- Figure 1 shows an embodiment of a device according to the invention for the recovery of carbonaceous substances, in particular bitumen from oil sands.
- the oil sands are in deposits 14, in the ground. If the rock layer above the deposit 14 is not too large, the mining of the oil sands in the open pit. However, from a certain depth, generally greater than 60 m, the opencast mine is no longer economical, so that the in-situ methods described in the introduction to the description are used.
- the device according to the invention for such an in-situ method comprises at least two separate steam circuits 1, 5.
- the first steam cycle 1 comprises at least a first steam generator 2 and a steam turbine 3 connected to the first steam generator 2, which has an intermediate steam trap 4
- the second steam cycle 5 comprises at least one second steam generator, in particular in the form of a first heat exchanger 7, an injection pipe 8, a production pipeline 9 and a water treatment plant 10.
- the injection pipeline 8 and the production pipeline 9 usually run horizontally within the reservoir 14 (not shown in FIG 1) .
- the injection pipe 8 and the production pipeline 9 run parallel to each other and typically at a distance of about 5m to 10m from each other. In the horizontal direction, the tubes extend within the deposit 14 over a length of between several 100m and a few kilometers. Via the injection pipe 8, steam can be introduced into the deposit 14 and thus into the oil sands.
- the hot steam splits the long-chain hydrocarbons and reduces bitumen viscosity.
- the bitumen becomes flowable.
- the flowable bitumen sinks Due to gravity down and can then be promoted as bitumen-water emulsion to light.
- simple lifting oil pumps 15. The bitumen-water emulsion can then be processed in a corresponding processing plant 10 to crude oil.
- the water of the bitumen-water emulsion is recovered in the treatment plant 10 and fed back to the second steam generator 6 via a corresponding return line 16.
- the insects of the first steam cycle 1 is in operative connection with the first heat exchanger 7 of the second steam cycle 5. This means that the hot steam is taken from the intermediate steam removal, and thermal energy in the first heat exchanger 7 is released to the water / steam of the second steam cycle 5 and thereby ensures the evaporation of the water in the second steam cycle 5. In this case, there is no direct contact between the water / steam of the first steam cycle 1 and the water / steam of the second steam cycle 5.
- the first steam cycle 1 is operated as a closed steam cycle. As a result, there may be no contamination of the water / steam in the first steam cycle 1. Contamination of the water / steam of the first steam circuit 1 with bitumen is thus excluded.
- the steam turbine 3 is connected on the output side with a first generator Gl.
- the generator G1 generates electric power which directly serves to operate an electric / electromagnetic heater 11.
- the electric / electromagnetic heater 11 also serves to heat the oil sands deposit.
- the electric / electromagnetic heater 11 is installed in the deposit in addition to the injection and production piping. Due to the additional electrical / electromagnetic heating 11 is a achieved particularly good warming of the deposit. As a result, a good splitting of the long-chain hydrocarbons and a strong reduction in the viscosity of the bitumen is achieved, whereby the deposit can be broken down very well.
- the apparatus further comprises a heat engine in the form of a gas turbine 12 which is connected on the output side with a second generator G2.
- the generator G2 also generates electric power that can be used to operate the electric / electromagnetic heater 11.
- a circuit is provided which makes it possible to operate the electric / electromagnetic heater 11 either exclusively via the steam turbine 3, exclusively via the gas turbine 12 or simultaneously via the gas turbine 12 and the steam turbine 3 or their generators.
- the gas turbine 12 can be designed accordingly.
- the unneeded electrical energy which is generated by the generators Gl and G2, can be used in addition to the operation of ancillary and ancillary units of the system or fed into an electrical network.
- the heat exchanger 13 is fed by the hot exhaust gas of the heat engine 12 and the hot exhaust gas passes through the second heat exchanger 13 in countercurrent to the water / steam of the first steam circuit 1.
- the second Heat exchanger 13 can be additionally lent heated with a Feuerungskessel or the like.
- the steam is taken from the insectsubentnähme 4 and which has a higher temperature is recycled via a first heat exchanger 7 of the second steam reismoores 5 to the first steam generator 2 of the first steam cycle 1.
- the steam flows through the first heat exchanger 7 in countercurrent to the water / steam of the second
- the device according to the invention is characterized by two separate steam circuits, wherein a first steam cycle is present as a closed steam cycle and within the closed steam cycle the steam turbine is operated.
- the first, closed, steam cycle does not communicate with the carbonaceous substances, so that contamination of the first steam cycle and thus contamination of the steam turbine can not occur.
- the reliability of the steam turbine is increased and it can be dispensed with the use of high quality materials which results in a cost reduction.
- the recovery of the carbonaceous substances from the oil sands takes place in a second open steam cycle. In this cycle it does not matter much if bitumen residues are in the vapor.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- General Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012014658.2A DE102012014658B4 (en) | 2012-07-24 | 2012-07-24 | Apparatus and method for recovering carbonaceous substances from oil sands |
PCT/EP2013/062857 WO2014016062A2 (en) | 2012-07-24 | 2013-06-20 | Device and method for extracting carbon-containing substances from oil sand |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2847422A2 true EP2847422A2 (en) | 2015-03-18 |
EP2847422B1 EP2847422B1 (en) | 2016-08-03 |
Family
ID=48746437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13733976.8A Not-in-force EP2847422B1 (en) | 2012-07-24 | 2013-06-20 | Device and method for extracting carbon-containing substances from oil sand |
Country Status (7)
Country | Link |
---|---|
US (1) | US10047297B2 (en) |
EP (1) | EP2847422B1 (en) |
CA (1) | CA2879767A1 (en) |
DE (1) | DE102012014658B4 (en) |
PL (1) | PL2847422T3 (en) |
RU (1) | RU2627791C2 (en) |
WO (1) | WO2014016062A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014223621A1 (en) * | 2014-11-19 | 2016-05-19 | Siemens Aktiengesellschaft | deposit Heating |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4007786A (en) * | 1975-07-28 | 1977-02-15 | Texaco Inc. | Secondary recovery of oil by steam stimulation plus the production of electrical energy and mechanical power |
RU2060378C1 (en) | 1993-04-06 | 1996-05-20 | Александр Константинович Шевченко | Method for developing oil stratum |
RU2173825C1 (en) * | 2000-01-10 | 2001-09-20 | Общество с ограниченной ответственностью "ЮганскНИПИнефть" | Method and device for heating of oil well products |
US6988549B1 (en) * | 2003-11-14 | 2006-01-24 | John A Babcock | SAGD-plus |
DE102007008292B4 (en) * | 2007-02-16 | 2009-08-13 | Siemens Ag | Apparatus and method for recovering a hydrocarbonaceous substance while reducing its viscosity from an underground deposit |
DE102007040606B3 (en) | 2007-08-27 | 2009-02-26 | Siemens Ag | Method and device for the in situ production of bitumen or heavy oil |
DE102007040605B3 (en) | 2007-08-27 | 2008-10-30 | Siemens Ag | Device for conveying bitumen or heavy oil in-situ from oil sand deposits comprises conductors arranged parallel to each other in the horizontal direction at a predetermined depth of a reservoir |
DE102008022176A1 (en) | 2007-08-27 | 2009-11-12 | Siemens Aktiengesellschaft | Device for "in situ" production of bitumen or heavy oil |
DE102008047219A1 (en) * | 2008-09-15 | 2010-03-25 | Siemens Aktiengesellschaft | Process for the extraction of bitumen and / or heavy oil from an underground deposit, associated plant and operating procedures of this plant |
US8261831B2 (en) | 2009-04-09 | 2012-09-11 | General Synfuels International, Inc. | Apparatus and methods for the recovery of hydrocarbonaceous and additional products from oil/tar sands |
US9243482B2 (en) * | 2011-11-01 | 2016-01-26 | Nem Energy B.V. | Steam supply for enhanced oil recovery |
DE102012000092B4 (en) | 2012-02-24 | 2014-08-21 | Siemens Aktiengesellschaft | Apparatus and method for recovering carbonaceous substances from oil sands |
-
2012
- 2012-07-24 DE DE102012014658.2A patent/DE102012014658B4/en not_active Expired - Fee Related
-
2013
- 2013-06-20 EP EP13733976.8A patent/EP2847422B1/en not_active Not-in-force
- 2013-06-20 CA CA2879767A patent/CA2879767A1/en not_active Abandoned
- 2013-06-20 PL PL13733976T patent/PL2847422T3/en unknown
- 2013-06-20 US US14/417,150 patent/US10047297B2/en not_active Expired - Fee Related
- 2013-06-20 WO PCT/EP2013/062857 patent/WO2014016062A2/en active Application Filing
- 2013-06-20 RU RU2015105777A patent/RU2627791C2/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2014016062A3 * |
Also Published As
Publication number | Publication date |
---|---|
CA2879767A1 (en) | 2014-01-30 |
EP2847422B1 (en) | 2016-08-03 |
WO2014016062A3 (en) | 2014-09-25 |
PL2847422T3 (en) | 2017-02-28 |
US20150275096A1 (en) | 2015-10-01 |
WO2014016062A2 (en) | 2014-01-30 |
DE102012014658B4 (en) | 2014-08-21 |
DE102012014658A1 (en) | 2014-01-30 |
US10047297B2 (en) | 2018-08-14 |
RU2627791C2 (en) | 2017-08-11 |
RU2015105777A (en) | 2016-09-10 |
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