[go: up one dir, main page]

WO2014133758A1 - Chaudière supercritique de récupération d'huile - Google Patents

Chaudière supercritique de récupération d'huile Download PDF

Info

Publication number
WO2014133758A1
WO2014133758A1 PCT/US2014/015996 US2014015996W WO2014133758A1 WO 2014133758 A1 WO2014133758 A1 WO 2014133758A1 US 2014015996 W US2014015996 W US 2014015996W WO 2014133758 A1 WO2014133758 A1 WO 2014133758A1
Authority
WO
WIPO (PCT)
Prior art keywords
steam
water
supercritical fluid
impurities
fluid
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/US2014/015996
Other languages
English (en)
Inventor
Scott D. Love
Bruce W. Gerhold
Edward G. Latimer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ConocoPhillips Co
Original Assignee
ConocoPhillips Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ConocoPhillips Co filed Critical ConocoPhillips Co
Priority to CA2900497A priority Critical patent/CA2900497A1/fr
Publication of WO2014133758A1 publication Critical patent/WO2014133758A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • E21B43/2406—Steam assisted gravity drainage [SAGD]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K5/00—Plants characterised by use of means for storing steam in an alkali to increase steam pressure, e.g. of Honigmann or Koenemann type
    • F01K5/02—Plants characterised by use of means for storing steam in an alkali to increase steam pressure, e.g. of Honigmann or Koenemann type used in regenerative installation

Definitions

  • Embodiments of the invention relate to methods and systems for generating steam used in thermal oil recovery processes and that may facilitate water treatment and limit fouling.
  • Costs associated with building a complex, large, sophisticated facility to process water and generate steam contributes to economic challenges of oil sands production operations. Such a facility represents much of the capital costs of these operations. Chemical and energy usage of the facility also contribute to operating costs.
  • a method of generating steam for oil production includes pressurizing and heating water to form a supercritical fluid. At least some of the supercritical fluid transitions to the steam. Injecting the steam into a formation facilitates the oil production.
  • a steam generating system for oil production includes a pump having a pressurized fluid outlet through which the pump is configured to provide water at above 22 megapascal to a furnace having a heated fluid outlet through which a supercritical fluid is provided by the furnace configured to increase temperature of the water to above 375° C.
  • a letdown device couples to the heated fluid outlet of the furnace to receive the supercritical fluid and is configured to produce steam from pressure reduction of the supercritical fluid.
  • An injection well couples with an outlet of the letdown device for conveying the steam into a formation to facilitate the oil production.
  • a method of generating steam for oil production includes reducing level of fouling precursors in water by oxidation of the fouling precursors in the water at a pressure and temperature above a critical point thereof. Transitioning the water from a supercritical fluid forms the steam. Injecting the steam into a formation facilitates the oil production.
  • Figure 1 is a schematic of a steam generating system for oil production that relies on transitioning water from supercritical conditions prior to injection of resulting steam, according to one embodiment of the invention.
  • Method and systems relate to generating steam by transitioning water from supercritical conditions and injecting the steam that results into a formation to facilitate recovery of oil. Pressurizing and heating the water forms a supercritical fluid that may solvate impurities in the water and/or oxidize the impurities. Retaining the impurities in solution and/or oxidation of the impurities limits fouling problems associated with generating the steam from water recycled in thermal processes, such as steam assisted gravity drainage (SAGD), for recovering the oil.
  • SAGD steam assisted gravity drainage
  • Figure 1 illustrates an exemplary system that includes an injection well 101, a production well 102, a pump 104, a furnace 106, and a letdown device for converting a supercritical fluid exiting the furnace 106 into steam and including at least one of a pressure reducer 108 and a cooler 110. While illustrated in an exemplary SAGD configuration, other techniques, such as cyclic steam stimulation, solvent assisted SAGD, steam drive or huff and puff, may employ the steam generated as described herein.
  • the injection well 101 extends in a horizontal direction and above the production well 102 also extending in the horizontal direction.
  • the steam enters the formation along the injection well 101 forming a steam chamber with heat transferred from the steam to the oil or bitumen in the formation.
  • the oil once heated becomes less viscous and mobile enough for flowing by gravity along with condensate of the steam to the production well 102.
  • a mixture of the condensate and oil collected in the production well 102 flows to surface where the oil to be sold is separated from the condensate, which is treated and recycled for generating additional steam to sustain steam injection.
  • the pump 104 increases pressure of water, including the condensate recycled, to above 22 megapascal (MPa).
  • the furnace 106 then increases temperature of the water to above 375° C. This temperature and pressure at which the water is heated and pumped forms a supercritical fluid as a result of being above a critical point of the water.
  • impurities or fouling precursors in the water react within the supercritical fluid to form products that do not form solids upon generation of the steam.
  • impurities may include dissolved organic compounds that react with available oxygen from the water under supercritical conditions. Products of this reaction include carbon dioxide.
  • the carbon dioxide may pass with the steam into the formation through the injection well 101 and may facilitate production of the oil due to such influences as dissolution into the oil or thermal insulating. Further, removal of the dissolved organic compounds by this conversion to the carbon dioxide treats the water avoiding buildup of these compounds in the water as the water is recycled. According to some embodiments, these reactions result in at least a 50 percent reduction in total organic carbon content by mass in the water.
  • the impurities remain solvated by the supercritical fluid without fouling tube walls of the furnace 106.
  • the pressure ensures that transition from a liquid phase is to the supercritical fluid rather than a gas phase that is distinct and may permit solids to come out of solution. Such solids can cause the fouling if not kept in solution by the supercritical fluid.
  • the supercritical fluid then flows from the furnace 106 to the pressure reducer 108, such as any flow controller including an orifice plate or a valve.
  • the pressure reducer 108 drops the pressure to between 3 and 10 MPa or between 9 and 10 MPa, depending on desired pressures for injection of the steam into the formation.
  • Such pressure reduction may also occur proximate a well pad (e.g., within 1 kilometer (km) of the injection well 101) to limit distance for conveying the steam or at a central processing facility that may be located 5 to 10 km or more away from the injection well.
  • transitioning the supercritical fluid to the steam relies on the pressure reducer 108 without further temperature adjustment other than any line losses.
  • the pressure reducer 108 may drop the pressure to provide the steam that is superheated.
  • Use of the steam that is superheated avoids condensation and hence steam loss in transfer lines to the injection well 101 and may also facilitate vaporization of solvents as may be desired for injection with the steam.
  • the cooler 110 further contributes to altering conditions of the supercritical fluid in order to generate the steam.
  • the supercritical fluid passes through the cooler 110 before the pressure reducer 108.
  • the cooler 110 may inject water into the steam that is superheated in order to lower the temperature of the steam to a saturation temperature of the steam or may integrate with other heating needs, such as being used as a heat exchanger to preheat the water supplied to the furnace 106 while reducing temperature of the supercritical fluid.
  • the supercritical fluid may transition to the steam that is wet (e.g., between 80 and 100 percent quality steam) based on conditions caused by the cooler 110 and/or the pressure reducer 108 being below a saturated state of the steam. At least some of the impurities may remain in a liquid phase when the steam is wet to facilitate removal of the impurities.
  • a vapor-liquid separator may divide the steam for injection from liquids for further treatment or disposal.
  • a sample of produced water from an oil sands formation contained an initial total organic carbon (TOC) content by mass of 3,250 parts per million (ppm) and total inorganic carbon (TIC) content by mass of 66 ppm.
  • TOC total organic carbon
  • TIC total inorganic carbon
  • the treated water contained only 1,140 ppm of TOC and 825 ppm of TIC representing a reduction in TOC from the produced water.
  • the TIC increased in the treated water and included bicarbonates dissolved in the treated water due to oxidation of the organics. This example thus illustrates effectiveness of removing dissolved organics from water to limit fouling issues in steam generation processes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

La présente invention concerne un procédé et des systèmes se rapportant à la génération de vapeur par transition d'eau à partir d'états supercritiques et à l'injection de la vapeur qui en résulte dans une formation de façon à faciliter une récupération d'huile. Selon l'invention, la mise sous pression et la chauffe de l'eau forment un fluide supercritique qui a la capacité de solvater des impuretés dans l'eau et/ou d'oxyder les impuretés. Le maintien des impuretés en solution et/ou l'oxydation des impuretés limitent des problèmes d'encrassement associés à la génération de vapeur à partir de l'eau recyclée lors de traitements thermiques, tels qu'un drainage par gravité au moyen de vapeur (SAGD), à des fins de récupération de l'huile.
PCT/US2014/015996 2013-03-01 2014-02-12 Chaudière supercritique de récupération d'huile Ceased WO2014133758A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2900497A CA2900497A1 (fr) 2013-03-01 2014-02-12 Chaudiere supercritique de recuperation d'huile

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201361771220P 2013-03-01 2013-03-01
US61/771,220 2013-03-01
US14/178,016 2014-02-11
US14/178,016 US20140246195A1 (en) 2013-03-01 2014-02-11 Supercritical boiler for oil recovery

Publications (1)

Publication Number Publication Date
WO2014133758A1 true WO2014133758A1 (fr) 2014-09-04

Family

ID=51420347

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/015996 Ceased WO2014133758A1 (fr) 2013-03-01 2014-02-12 Chaudière supercritique de récupération d'huile

Country Status (3)

Country Link
US (1) US20140246195A1 (fr)
CA (1) CA2900497A1 (fr)
WO (1) WO2014133758A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110118078A (zh) * 2019-05-23 2019-08-13 西南石油大学 利用井下蒸汽发生的单水平井重力泄油开采装置及方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015038912A1 (fr) * 2013-09-13 2015-03-19 General Electric Company Traitement de l'eau produite pour la génération d'un fluide dense en phase supercritique et son injection dans des formations géologiques en vue de la production d'hydrocarbures
CA2927287C (fr) * 2013-10-18 2017-05-09 Husky Oil Operations Limited Procede de recyclage d'eau de purge et systeme pour augmenter des pourcentages de recyclage et de recuperation d'eau pour des unites de generation de vapeur

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5888389A (en) * 1997-04-24 1999-03-30 Hydroprocessing, L.L.C. Apparatus for oxidizing undigested wastewater sludges
US20050006317A1 (en) * 2003-05-06 2005-01-13 Sunggyu Lee Systems and methods for water purification through supercritical oxidation
US20100189610A1 (en) * 2008-02-20 2010-07-29 Air Products And Chemicals, Inc. Apparatus for Upgrading Heavy Hydrocarbons Using Supercritical Water
US20100288555A1 (en) * 2006-05-16 2010-11-18 Werner Foppe Procedure and device for the optimal, utilization of carbon resources such as oil fields, oil shales, oil sands, coal, and co2
US20110198085A1 (en) * 2006-02-24 2011-08-18 O'brien Thomas B Method and system for extraction of hydrocarbons from oil sands
US20120061294A1 (en) * 2010-09-14 2012-03-15 Saudi Arabian Oil Company Petroleum Upgrading Process
WO2013050075A1 (fr) * 2011-10-05 2013-04-11 Statoil Petroleum As Procédé et appareil permettant la génération de vapeur pour la récupération d'hydrocarbures
US20130140214A1 (en) * 2011-10-31 2013-06-06 Saudi Arabian Oil Company Supercritical water process to upgrade petroleum

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5888389A (en) * 1997-04-24 1999-03-30 Hydroprocessing, L.L.C. Apparatus for oxidizing undigested wastewater sludges
US20050006317A1 (en) * 2003-05-06 2005-01-13 Sunggyu Lee Systems and methods for water purification through supercritical oxidation
US20110198085A1 (en) * 2006-02-24 2011-08-18 O'brien Thomas B Method and system for extraction of hydrocarbons from oil sands
US20100288555A1 (en) * 2006-05-16 2010-11-18 Werner Foppe Procedure and device for the optimal, utilization of carbon resources such as oil fields, oil shales, oil sands, coal, and co2
US20100189610A1 (en) * 2008-02-20 2010-07-29 Air Products And Chemicals, Inc. Apparatus for Upgrading Heavy Hydrocarbons Using Supercritical Water
US20120061294A1 (en) * 2010-09-14 2012-03-15 Saudi Arabian Oil Company Petroleum Upgrading Process
WO2013050075A1 (fr) * 2011-10-05 2013-04-11 Statoil Petroleum As Procédé et appareil permettant la génération de vapeur pour la récupération d'hydrocarbures
US20130140214A1 (en) * 2011-10-31 2013-06-06 Saudi Arabian Oil Company Supercritical water process to upgrade petroleum

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110118078A (zh) * 2019-05-23 2019-08-13 西南石油大学 利用井下蒸汽发生的单水平井重力泄油开采装置及方法

Also Published As

Publication number Publication date
CA2900497A1 (fr) 2014-09-04
US20140246195A1 (en) 2014-09-04

Similar Documents

Publication Publication Date Title
US10357726B2 (en) Water treatment and steam generation system for enhanced oil recovery and a method using same
US10975676B2 (en) Direct steam generator degassing
US9593563B2 (en) Method and apparatus for generating steam for the recovery of hydrocarbon
US8656999B2 (en) Water treatment using a direct steam generator
CA2927287C (fr) Procede de recyclage d'eau de purge et systeme pour augmenter des pourcentages de recyclage et de recuperation d'eau pour des unites de generation de vapeur
CA2923227A1 (fr) Traitement de l'eau produite pour la generation d'un fluide dense en phase supercritique et son injection dans des formations geologiques en vue de la production d'hydrocarbures
CN104619950A (zh) 使用加晶种蒸发器的产出水的处理
US20190270030A1 (en) System And Method To Partially Vaporize A Process Stream By Mixing The Stream With A Heating Medium
CA2940561C (fr) Traitement semi-continu d'eau produite au moyen de gaz d'echappement d'une chaudiere
US20140246195A1 (en) Supercritical boiler for oil recovery
US9945221B2 (en) Process for treating produced water evaporator concentrate
RU2671746C1 (ru) Способ удаления растворенного газа из сырьевого потока испарителя
US20150308231A1 (en) Liquid based boiler
US20140166263A1 (en) Brine based indirect steam boiler
US20140166281A1 (en) Liquid indirect steam boiler
CA2940562C (fr) Traitement d'eau produite au moyen de chaleur indirecte
US11898745B2 (en) Electrical vapor generation methods and related systems
US20150096754A1 (en) Indirect boiling for water treatment
CA2956736C (fr) Procedes de traitement de fluide de reservoir comprenant un materiau provenant d'un reservoir contenant un hydrocarbure
US20140166538A1 (en) Bitumen based indirect steam boiler
CA2870798C (fr) Procedes de traitement de fluide de reservoir comprenant un materiau provenant d'un reservoir contenant un hydrocarbure
WO2014099408A2 (fr) Chaudière à vapeur indirecte à base de saumure
US20150020763A1 (en) Method for removing trace levels of oxygen from direct combustion device combustion products
CA3222047A1 (fr) Integration des operations de recuperation de bitume sur place avec des operations de minage et d'extraction de sables bitumineux
CA2802254A1 (fr) Techniques d'integration pour generation de vapeur et traitement d'eau produite pour operations de recuperation sur place thermiques

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14756961

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2900497

Country of ref document: CA

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14756961

Country of ref document: EP

Kind code of ref document: A1