WO2009071981A2 - Procédé d'inhibition de silice et d'évaporation par purge (sibe, silica inhibition and blowdown evaporation) - Google Patents

Procédé d'inhibition de silice et d'évaporation par purge (sibe, silica inhibition and blowdown evaporation) Download PDF

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Publication number
WO2009071981A2
WO2009071981A2 PCT/IB2008/003335 IB2008003335W WO2009071981A2 WO 2009071981 A2 WO2009071981 A2 WO 2009071981A2 IB 2008003335 W IB2008003335 W IB 2008003335W WO 2009071981 A2 WO2009071981 A2 WO 2009071981A2
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WO
WIPO (PCT)
Prior art keywords
feedwater
boiler
silica
steam
supply system
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.)
Ceased
Application number
PCT/IB2008/003335
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English (en)
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WO2009071981A3 (fr
Inventor
Pierre Pedenaud
Philippe Michaud
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TotalEnergies SE
Original Assignee
Total SE
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Filing date
Publication date
Application filed by Total SE filed Critical Total SE
Publication of WO2009071981A2 publication Critical patent/WO2009071981A2/fr
Anticipated expiration legal-status Critical
Publication of WO2009071981A3 publication Critical patent/WO2009071981A3/fr
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D11/00—Feed-water supply not provided for in other main groups
    • F22D11/006—Arrangements of feedwater cleaning with a boiler
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
    • C02F5/145—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus combined with inorganic substances
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/02—Non-contaminated water, e.g. for industrial water supply
    • C02F2103/023—Water in cooling circuits
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities

Definitions

  • Embodiments of the invention are related to processes for the treatment of boiler feed water to minimize scaling and more particularly to the removal of silica from boiler feed water used for steam generation for use in heavy oil extraction.
  • boiler scale As water is heated and converted into steam, contaminants brought into a boiler tend to be left in the boiler.
  • the boiler functions as a distillation unit, taking pure water out as steam, and leaving behind concentrated minerals and other contaminants in the boiler.
  • Scale forms as a result of the precipitation of normally soluble solids that become insoluble as temperature increases.
  • Some examples of boiler scale are calcium carbonate, calcium sulfate, and calcium silicate. Scale acts as an insulator, reducing boiler efficiency. Scaling can lead to boiler tube failure due to overheating.
  • a variety of different methodologies have been employed to attempt to remove contaminants from boiler feed water including chemical precipitation such as lime softening, ion exchange, reverse-osmosis, electrodialysis, distillation and freezing.
  • OSG once-through steam generator
  • the silica inhibitors act to inhibit amorphous silica from polymerising into colloidal silica (groups of SiO 2 (OH) n ; where n>8) which adheres to the boiler tubes creating silica scaling that may lead to tube failure.
  • Figure 1A is a schematic illustrating a method of steam generation according to en embodiment of the invention.
  • Figure 1B is a schematic illustrating an alternate method according to Fig. 1A
  • Figure 2 is a schematic illustrating an embodiment according to Fig. 1A further comprising a crystallization unit;
  • Figure 3 is a graph illustrating silica composition evolution in the produced water of Example B of Table A over time
  • Figure 4 is a schematic illustrating an embodiment of an evaporation/crystallization process for treating the blowdown stream.
  • Figure 5 is a schematic illustrating a mass balance according to an embodiment of the invention.
  • the invention relates to a method for producing steam comprising: - providing feedwater containing silica;
  • the inhibitor of silica deposition is selected from the group consisting of high molecular weight organic polymers such as derivatives of phosphovinyl-sulfonic acids and their salts, organic acids such as citric acid, maleic acid, formic acids, lactic acids, phosphino-carboxylic acids and their salts, inorganic compounds such as boric acid, hydrofluoric acid and their salts, borax, sodium aluminates and sodium chlorates, as well as mixtures thereof.
  • the boiler is a once through steam generator.
  • the boiler generates approximately 1-50 wt% liquid blowdown and 50-99 wt% steam, preferably approximately 5-40 wt% liquid blowdown and 60-95 wt% steam, most preferably approximately 15-30 wt% liquid blowdown and 70-85 wt% steam.
  • the treatment of the liquid blowdown is performed by decantation and/or by evaporation and/or crystallization.
  • the silica content of the feedwater prior to addition of the diluent water stream is equal to or less than approximately 400 mg/L, preferably is approximately comprised between 300 and 400 mg/L, most preferably is approximately comprised between 333 and 400 mg/L;and/or
  • the silica content of the liquid blowdown prior to treatment is above approximately 400 mg/L, preferably above approximately 1000 mg/L, most preferably above approximately 1600 mg/L;
  • the silica content of the diluent water stream is below approximately 200 mg/L, preferably below approximately 50 mg/L, and most preferably the diluent water stream is substantially silica-free.
  • the abovementioned method comprises storing the feedwater in a storage tank prior to supplying it to the boiler.
  • the inhibitor of silica deposition is added to the feedwater after storing the feedwater in the storage tank and before supplying to the boiler.
  • the inhibitor of silica deposition is added to the feedwater before storing the feedwater in the storage tank.
  • the abovementioned method comprises reducing the hardness of the feedwater prior to supplying it to the boiler, and preferably prior to storing the feedwater in the storage tank.
  • the treatment of the liquid blowdown is performed by decantation and the diluent water stream is added to the feedwater before reducing the hardness of the feedwater.
  • the treatment of the liquid blowdown is performed by evaporation and/or crystallization and the diluent water stream is added to the feedwater after reducing the hardness of the feedwater.
  • the feedwater is produced water from heavy oil recovery processes, such as steam assisted gravity drainage, said produced water being preferably de-oiled.
  • the invention also relates to an installation for producing steam comprising:
  • a treatment unit for reducing the silica content of water an inlet of which is connected to the liquid blowdown conduit and an outlet of which is connected to the feedwater supply system.
  • the boiler is a once through steam generator.
  • the treatment unit comprises a decanter and/or an evaporator and/or a crystallization unit.
  • the abovementioned installation does not comprise any lime softening unit.
  • the feedwater supply system comprises a hardness reducing unit, which is preferably an ion exchange system.
  • the treatment unit comprises a decanter and the outlet of the treatment unit is connected to the feedwater supply system upstream the hardness reducing unit.
  • the treatment unit comprises an evaporator and/or a crystallization unit and the outlet of the treatment unit is connected to the feedwater supply system downstream the hardness reducing unit.
  • the feedwater supply system comprises a feedwater storage tank.
  • the outlet of the inhibitor of silica deposition supply system is connected to the feedwater supply system upstream the feedwater storage tank. According to an embodiment, the outlet of the inhibitor of silica deposition supply system is connected to the feedwater supply system downstream the feedwater storage tank.
  • the invention also relates to a process for extracting hydrocarbons from a subterranean formation comprising:
  • Hydrocarbons which may be extracted according to the present invention include in particular bitumen and heavy oils.
  • Embodiments of the invention permit feedwater having an increased silica content to be used to produce steam in a boiler such as a conventional boiler or a once through steam generator (OTSG) as a result of the combination of the addition of silica inhibitors to the water entering the conventional boiler or the OTSG and the effect of adding a substantially silica free or reduced silica stream of water to the feedwater.
  • An OTSG has a lower steam yield than a conventional boiler.
  • Embodiments of the invention eliminate the prior art requirements for treatment of the feedwater with warm lime softening and also reduce scaling in the boiler.
  • One source of feedwater for steam production is produced water from heavy oil recovery processes, such as steam assisted gravity drainage (SAGD), the produced water having been de-oiled following production using conventional technology.
  • SAGD recovery process typically comprises at least one injection well and at least one extraction well. Steam is injected though the at least one injection well for recovering hydrocarbons and produced water from the at least one extraction well.
  • the permissible silica content of the feedwater directed to the conventional boiler or to the OTSG can be increased from an upper limit of about 100 mg/L known in the prior art for conventional boiler processes, to about 333 mg/L in embodiments utilizing a recycling of about 20% blowdown from an OTSG.
  • the maximum permissible silica content may be as high as about 400 mg/L with a 20% to 25% blowdown. Increased dilution with silica-free water from the evaporator or increased amounts of inhibitor or a combination of the two may be used if silica concentrations in the produced water exceed 400 mg/L.
  • the conventional boiler or OTSG blowdown having a high silica content is flowed to a blowdown evaporator.
  • a distillate water produced from the evaporator provides a substantially silica free diluent water stream which is recycled into the feedwater stream following ion exchange or before ion exchange and prior to or after the addition of the silica inhibitors.
  • embodiments of the process permit recycling of the blowdown water.
  • a substantially silica-free water from a source other than the evaporator is added to the feedwater stream for diluting the feedwater stream.
  • a combined evaporation and crystallization unit may be used to permit land-filling of the silica and other contaminants produced by the evaporation process.
  • a decanter wherein solid silica, as well as other suspended solids, is separated from the bulk of the liquid blowdown owing to gravity.
  • the diluent water stream must generally be added to the feedwater upstream the ion exchange unit.
  • the diluent water stream can generally be added to the feedwater downstream the ion exchange unit, since the evaporator removes hardness as well as silica.
  • a high quality steam is produced, such as for injection into a heavy oil or bitumen deposit, using the conventional boiler or the once-through steam generator (OTSG), for example through at least one injection well.
  • Steam is produced from a steam conduit connected to a first outlet of the boiler. Desired steam quality is typically greater than 70% and more preferably greater than 75%.
  • Feedwater for the process is typically de-oiled produced water from a recovery wellbore. The produced water is typically de-oiled using conventional technology. Hydrocarbons and produced water are recovered from at least one extraction well. Table A illustrates typical ionic constituents of samples of produced water from three different SAGD operations. TABLE A
  • Fig. 3 illustrates the silica composition evolution in the produced water of Example B over time. According to this graph, the maximum value of silica achieved is about 400 mg/l.
  • the produced, de-oiled water is mixed with sufficient make-up water to meet the feedwater demands of the conventional boiler or the OTSG.
  • the combined stream of produced water and makeup water is passed through the ion exchange unit comprising an ion exchange resin, in many cases a weak acid cation exchange resin (WAC) 1 for demineralization of the feed water and typically also for removal of hardness which may aid in reducing the amount of blowdown required from the boiler. Removal of Ca and Mg ions further prevents the formation of silicates therewith which form deposits in the boiler.
  • WAC weak acid cation exchange resin
  • the diluted, treated feedwater is typically stored in a storage tank for use in the conventional boiler or the OTSG.
  • An injection skid or other suitable means, as an inhibitor of silica deposition supply system is typically positioned downstream from the diluted, treated feedwater storage and upstream from the conventional boiler or the OTSG for the addition of silica inhibitors as described in Canadian Patent Application 2,475,048 to Total SA.
  • this injection skid may be positioned anywhere upstream the boiler, i.e. either upstream or downstream the feedwater storage, either upstream or downstream the ion exchange unit (if present), either upstream or downstream the addition of diluent water stream.
  • Blowdown in a liquid blowdown conduit connected to a second outlet of the boiler, typically from a separator used to separate water and steam produced from the conventional boiler or OTSG, is directed to an evaporator where the blowdown water is distilled to produce a substantially silica free distillate stream and a concentrated silica waste stream which is discharged therefrom.
  • Certain low molecular weight organic acids, certain alcohols, and ions, such as fluorides, borates and the like, as well as specific conditions such as alkaline or very acidic pH are known to deteriorate glass and silicates.
  • the inhibitors of silica deposition used are selected from among compound families known to inhibit the deposition of silica carbonates.
  • the compounds used include high molecular weight organic polymers such as derivatives of phospho-vinyl- sulphonic acids and their salts; organic acids such as citric add, maleic acid, formic acids, lactic acids, phosphino-carboxylic acids, and their salts; inorganic compounds such as boric acid, hydrofluoric acid and their salts; borax, sodium aluminates and sodium chlorates.
  • organic polymers such as derivatives of phospho-vinyl- sulphonic acids and their salts
  • organic acids such as citric add, maleic acid, formic acids, lactic acids, phosphino-carboxylic acids, and their salts
  • inorganic compounds such as boric acid, hydrofluoric acid and their salts
  • borax sodium aluminates and sodium chlorates.
  • the compounds are used alone or in mixtures thereof.
  • the inhibitor comprises a combination of organic inhibitors utilizing phosphor-vinylsulfonic acid or a polyvinylsulfonate as the principal active ingredient in combination with a mixture of one or more organic acids, typically citric acid, maleic acid, formic acid or lactic acid.
  • organic acids typically citric acid, maleic acid, formic acid or lactic acid.
  • salts of the organic acids may be used to maintain a pH closer to neutrality. Ammonium salts of formic acid and citric acid are not used.
  • citric acid and maleic acid are added to phosphovinylsulfonic acid to obtain a thermally stable inhibitor.
  • the weight ratio of citric acid to maleic acid is about 10/1 , the % by weight of citric acid being between about 3% to about 10% and preferably about 5%.
  • the inhibitors act to prevent the coalescence of monomers of (OH) 3 -Si-O-Si(OH) 3 , and leave polymers of SiOa(OH) n , wherein n is equal to less .than 8, in suspension.
  • the inhibitors are capable of performing inhibition functions at temperature of 300 0 C or greater which is particularly advantageous when used for steam generation in amounts ranging in some embodiments from between about 2 ppm to about 2000 ppm, in some embodiments from between about 3 ppm to about 100 ppm and in some embodiments from about 5 ppm to about 50 ppm.
  • the amount of inhibitor used may be determined depending upon the pH of the feedwater as pH controls the solubility of silica, the silica being more soluble in very alkaline conditions or in certain acidic conditions, such as in the presence of some acids, such as hydrofluoric acid. Having reference to Figs. 1A and 2 and in embodiments of the invention, approximately 20 to 25% of the total water output from the boiler is recycled as a substantially silica-free distillate stream and is added to the feedwater stream downstream from the ion exchange. In embodiments of the invention, the amount of total water output from the boiler that is recycled may be increased to about 40% as required.
  • substantially silica free water from a source other than a recycle evaporator is added to the feedwater stream downstream from the ion exchange.
  • the feedwater is diluted so as to reduce the silica concentration in the feedwater such that, in combination with the addition of inhibitors according to embodiments of the invention and without the need for warm lime softening, there is a significant reduction in deposition of silica in the conventional boiler or in the OTSG.
  • embodiments of the invention achieve substantial inhibition of silica deposition in a cost effective manner.
  • a method for producing steam from feedwater containing silica comprising receiving a substantially oil-free feedwater stream, treating the feedwater stream with ion exchange for substantially reducing the concentration of ions contributing to hardness of the feedwater, introducing a substantially silica-free stream to the feedwater for diluting the feedwater for reducing the silica concentration therein, adding an effective amount of inhibitors for minimizing formation of colloidal silica and generating steam and a blowdown water from the feedwater in a conventional boiler or in a once through steam generator OTSG, the blowdown water being subsequently evaporated or concentrated for producing at least a concentrated silica stream for disposal thereof.
  • the substantially silica-free stream which is recycled to the feedwater stream is produced by the evaporation or concentration of the blowdown water.
  • the maximum silica concentration in produced water is typically about 400 mg/L or less and the dilution of the feedwater, being the substantially de-oiled produced water, results in a silica concentration entering the boiler of about 333 mg/L or less.
  • the effective amount of inhibitor is typically determined dependent upon the pH of the feedwater.
  • the effect of the dilution of the feedwater stream reduces the silica concentration in a produced/de-oiled water from a maximum of about 400 mg/L to a maximum of about 333 mg/L and therefore the inhibitors added downstream are required to inhibit a maximum of about 333 mg/l of silica in the boiler feedwater.
  • Additional WLS is therefore not required as the process according to embodiments of the invention, which combine inhibitors and dilution of the feedwater, is capable of handling initial feed streams having higher silica concentrations without scale buildup.
  • water can be routed directly from the ion exchange regeneration to the evaporator for distillation for forming at least a portion of the substantially silica-free stream which is subsequently recycled to the feedwater stream downstream from the ion exchange.
  • Embodiments of the invention are limited to produced and source or make-up water having a hardness below about 200 mg/L as CaC ⁇ 3 and more preferably below about 100 mg/L.
  • the produced water also has a low salinity, having a total dissolved solids (TDS) content of less than about 10,000 mg/L.
  • the concentrated silica stream from the evaporator may be directed to a crystallization unit wherein the concentrated silica stream, produced by evaporation, is crystallized for disposal in landfill or other suitable disposal site.
  • a feedwater from an ion exchange having a silica concentration of less than or equal to 400 mg/L
  • a substantially silica-free diluent stream derived from the evaporator as evaporator blowdown the resulting diluted feedwater stream having a concentration of less than or equal to 333 mg/L silica.
  • the diluted feedwater is stored for use in the conventional boiler or the OTSG.
  • Inhibitors are added upstream from the conventional boiler or the OTSG in an amount sufficient to inhibit about 270 mg/L of silica for preventing deposition in the conventional boiler or the OTSG 1 the remaining 63 mg/L silica being within the tolerance limits of the conventional boiler or the OTSG.
  • the produced steam and water from the boiler is passed to a separator which separates the steam from the water containing impurities.
  • a freezing crystallization unit (not shown) may replace the evaporation crystallization unit.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Silicon Compounds (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

L'invention concerne un procédé pour produire de la vapeur, comprenant les étapes consistant à : - fournir une eau d'alimentation contenant de la silice; - introduire l'eau d'alimentation dans une chaudière; - produire de la vapeur et une purge liquide dans la chaudière; - ajouter un inhibiteur de dépôt de silice dans l'eau d'alimentation avant son introduction dans la chaudière; - traiter au moins en partie la purge liquide afin de produire un courant d'eau diluant; - ajouter au moins une partie du courant d'eau diluant dans l'eau d'alimentation avant de l'introduire dans la chaudière; - la teneur en silice du courant d'eau diluant étant inférieure à la teneur en silice de l'eau d'alimentation auquel il est ajouté. L'invention concerne également une installation adaptée à la mise en œuvre de ce procédé ainsi qu'un procédé d'extraction d'hydrocarbures d'une formation souterraine qui utilise ce procédé.
PCT/IB2008/003335 2007-12-07 2008-10-14 Procédé d'inhibition de silice et d'évaporation par purge (sibe, silica inhibition and blowdown evaporation) Ceased WO2009071981A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1229707P 2007-12-07 2007-12-07
US61/012,297 2007-12-07

Publications (2)

Publication Number Publication Date
WO2009071981A2 true WO2009071981A2 (fr) 2009-06-11
WO2009071981A3 WO2009071981A3 (fr) 2010-07-08

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2954950A1 (fr) * 2010-01-06 2011-07-08 Total Sa Production de vapeur et son application a la recuperation assistee d'hydrocarbures
FR2963962A1 (fr) * 2010-08-19 2012-02-24 Total Sa Production de vapeur et son application a la recuperation assistee d'hydrocarbures
WO2012082259A1 (fr) * 2010-12-17 2012-06-21 General Electric Company Oxydation chimique ou traitement électromagnétique dans des opérations de drainage par gravité au moyen de la vapeur
FR3003337A1 (fr) * 2013-03-12 2014-09-19 Ingenica Ingenierie Ind Procede de generation de vapeur d'eau et procede de recuperation de petrole brut par drainage gravitaire assiste par injection de vapeur d'eau (sagd) incluant ledit procede de generation de vapeur d'eau
WO2015140111A1 (fr) 2014-03-21 2015-09-24 Total Sa Procédé d'extraction d'huiles lourdes et de génération de vapeur d'eau
US10054308B2 (en) 2014-09-11 2018-08-21 Ingenica Ingenierie Industrielle Method for generating steam from raw water, in particular from blow down water coming from a steam generator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106986438A (zh) * 2017-06-07 2017-07-28 东莞市净宇环保科技有限公司 一种cod去除剂及其制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7681643B2 (en) * 1999-05-07 2010-03-23 Ge Ionics, Inc. Treatment of brines for deep well injection
FR2858314B1 (fr) * 2003-08-01 2006-11-03 Total Sa Procedes d'extraction d'huiles lourdes et de generation de vapeur d'eau comprenant l'utilisation d'inhibiteurs de depot de silice
CA2547503C (fr) * 2003-11-26 2012-03-13 Aquatech International Corporation Procede de production de vapeur haute pression a partir d'eau produite

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2954950A1 (fr) * 2010-01-06 2011-07-08 Total Sa Production de vapeur et son application a la recuperation assistee d'hydrocarbures
WO2011083421A1 (fr) 2010-01-06 2011-07-14 Total S.A. Procede de traitement d'eau et de production de vapeur et installation de production de vapeur
FR2963962A1 (fr) * 2010-08-19 2012-02-24 Total Sa Production de vapeur et son application a la recuperation assistee d'hydrocarbures
WO2012082259A1 (fr) * 2010-12-17 2012-06-21 General Electric Company Oxydation chimique ou traitement électromagnétique dans des opérations de drainage par gravité au moyen de la vapeur
CN103384647A (zh) * 2010-12-17 2013-11-06 通用电气公司 在sagd操作中的化学氧化或电磁处理
CN103384647B (zh) * 2010-12-17 2015-12-02 通用电气公司 在sagd操作中的化学氧化或电磁处理
US9731989B2 (en) 2010-12-17 2017-08-15 General Electric Company Chemical oxidation or electromagnetic treatment in SAGD operations
FR3003337A1 (fr) * 2013-03-12 2014-09-19 Ingenica Ingenierie Ind Procede de generation de vapeur d'eau et procede de recuperation de petrole brut par drainage gravitaire assiste par injection de vapeur d'eau (sagd) incluant ledit procede de generation de vapeur d'eau
WO2014140469A3 (fr) * 2013-03-12 2015-04-30 Ingenica Ingenierie Industrielle Procede de generation de vapeur d'eau et procede de recuperation de petrole brut par drainage gravitaire assiste par injection de vapeur d'eau (sagd) incluant ledit procede de generation de vapeur d'eau
US9604864B2 (en) 2013-03-12 2017-03-28 Ingenica Ingenierie Industrielle Steam generation method and method for recovering crude oil by steam-assisted gravity drainage (SAGD) including said steam generation method
WO2015140111A1 (fr) 2014-03-21 2015-09-24 Total Sa Procédé d'extraction d'huiles lourdes et de génération de vapeur d'eau
US10054308B2 (en) 2014-09-11 2018-08-21 Ingenica Ingenierie Industrielle Method for generating steam from raw water, in particular from blow down water coming from a steam generator

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WO2009071981A3 (fr) 2010-07-08
CA2641072A1 (fr) 2009-06-07
CA2641072C (fr) 2016-02-16

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