WO2014205208A1 - Chaudière à oxygène à production assistée par vapeur - Google Patents

Chaudière à oxygène à production assistée par vapeur Download PDF

Info

Publication number
WO2014205208A1
WO2014205208A1 PCT/US2014/043171 US2014043171W WO2014205208A1 WO 2014205208 A1 WO2014205208 A1 WO 2014205208A1 US 2014043171 W US2014043171 W US 2014043171W WO 2014205208 A1 WO2014205208 A1 WO 2014205208A1
Authority
WO
WIPO (PCT)
Prior art keywords
oxy
boiler
flue gas
steam
formation
Prior art date
Application number
PCT/US2014/043171
Other languages
English (en)
Inventor
Scott Macadam
James P. Seaba
Original Assignee
Conocophillips Company
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 Company filed Critical Conocophillips Company
Publication of WO2014205208A1 publication Critical patent/WO2014205208A1/fr

Links

Classifications

    • 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
    • F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/22—Methods of steam generation characterised by form of heating method using combustion under pressure substantially exceeding atmospheric pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Definitions

  • Embodiments of the invention relate to generating steam for steam assisted production of hydrocarbons with an oxy-boiler operated to facilitate flue gas applications.
  • Scrubbing flue gases of the steam generators with a carbon dioxide absorbing solution like an amine based mixture offers one prior approach for the capture.
  • additional costs associated with capturing the carbon dioxide further increase expenses limiting economic recovery of the oil.
  • Direct steam generation burns fuel with oxygen in presence of water to generate a mixture including steam and carbon dioxide, which may not be at a desired concentration for injection.
  • Oxy-fuel combustion for steam boilers provides an alternative option for mitigating carbon dioxide emissions since flue gas contains carbon dioxide and water vapor as primary separable constituents.
  • flue gas contains carbon dioxide and water vapor as primary separable constituents.
  • recovered carbon dioxide from the flue gas may still require treatment to remove oxygen, nitrogen and argon contaminants in order to meet pipeline and storage specifications.
  • combustion at atmospheric pressure provides the flue gases at pressures too low for injection with the steam.
  • a method of steam assisted oil recovery with carbon dioxide control includes generating steam in an oxy-boiler that combusts fuel with oxygen in an environment pressurized to at least 690 kilopascals for producing the steam separate from flue gas resulting from burning of the fuel. Injecting the steam into a formation assists in recovering the oil. The method further includes processing at least part of the flue gas to provide dehydrated and compressed carbon dioxide that is transported to a sequestration site different than the formation.
  • a system for steam assisted oil recovery with carbon dioxide control includes an oxy-boiler configured to combust fuel with oxygen in an environment pressurized to at least 690 kilopascals for producing steam separate from flue gas resulting from burning of the fuel.
  • An injection well couples to an output of the oxy-boiler for injecting the steam into a formation to assist in recovering the oil.
  • a pipeline couples to an exhaust of the oxy-boiler for receiving at least part of the flue gas for carbon dioxide transport to a sequestration site different than the formation.
  • Figure 1 is a schematic of a production system for steam assisted oil recovery utilizing an oxy-boiler with oxygen and excess fuel supplied at pressures above 690 kilopascals, according to one embodiment of the invention.
  • Methods and systems relate to an oxy-boiler used to generate steam injected into a well for assisting recovery of hydrocarbons.
  • Operating conditions of a burner for the oxy-boiler limits oxygen contamination in a resulting flue gas for carbon dioxide recovery and limits size of the oxy-boiler, which may thus be located proximate the well rather at a central processing facility.
  • the oxy-boiler also enables selection of a desired level of carbon dioxide injection, which may be provided with the flue gas that may be exhausted from the oxy-boiler at an injection pressure.
  • Figure 1 illustrates an exemplary system that includes an oxy-boiler 100, an injection well 101, a production well 102, and a separator 104. 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.
  • steam generated by the oxy-boiler 100 enters a formation along the injection well 101 forming a steam chamber with heat transferred from the steam to 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 removed in the separator 104 from the condensate, which is recycled for generating additional steam to sustain steam injection.
  • the oxy-boiler 100 receives fuel and oxygen combusted at a burner to heat water that is input and maintained separate from resulting combustion products that exit the oxy-boiler as flue gas.
  • the heat from the burner transfers across a boiler vessel such as tubes containing the water. At least part of the water converts to steam that may have a quality of at least seventy-five percent and may be separated from remaining liquid blowdown prior to being conveyed into the injection well 101.
  • Examples of the fuel input into the oxy-boiler 100 include hydrocarbons such as coal, petroleum coke, asphaltenes, methane or natural gas.
  • a feed of the oxygen supplied to the oxy-boiler 100 contains at least 95% by volume pure oxygen separated from air.
  • the oxy-boiler 100 operates under stoichiometric conditions with respect to the fuel and oxygen or fuel-rich conditions to at least limit oxygen carryover into the flue gas.
  • the fuel and the oxygen further enter the oxy-boiler 100 pressurized to above 690 kilopascals (kPa), between 690 kPa and 1040 kPa, or up to 6900 kPa.
  • Pressurization of an environment where the fuel is burned and the flue gas may correspond and be at least 690 kilopascals (kPa), between 690 kPa and 1040 kPa, or up to 6900 kPa.
  • This pressurization helps prevent air leakage into the oxy-boiler 100.
  • some oxy- combustor sections may operate under vacuum resulting in the air leakage and contamination of the carbon dioxide in the flue gas with oxygen from the air that gets entrained into the flue gas.
  • the pressurization from the fuel and the oxygen supplied to the oxy-boiler 100 also limits size or footprint of the oxy-boiler 100 required to generate a given amount of the steam.
  • pressurized burning relative to atmospheric increases heat transfer and decreases flue gas velocity such that the water can be heated within a smaller volume in the oxy-boiler 100.
  • the footprint of the oxy- boiler 100 enables locating the oxy-boiler 100 on a pad with restricted space proximate the injection well 101 rather than at a central processing facility.
  • the central processing facility may supply the water, fuel and oxygen to the oxy-boiler at the pad.
  • the oxy-boiler 100 located at the pad limits heat losses along steam lines since the oxy-boiler 100 may be within 100 meters of the injection well 101 compared to the central processing facility that may be greater than 100 meters from the injection well 101. Further, generating the steam at the pad extends possible distance between the pad and the central processing facility since not limited by such heat loss along steam lines.
  • a first portion of the flue gas may recycle back to the burner and may mix with the oxygen for moderating flame temperatures in the oxy-boiler 100 to levels common during conventional combustion and within thermal thresholds.
  • a recycle blower may facilitate achieving desired flow of the flue gas for such recirculation.
  • a second portion of the flue gas may flow into the formation to promote recovery of the hydrocarbons.
  • the carbon dioxide may reduce viscosity of the hydrocarbons upon dissolving in the hydrocarbons.
  • the second portion of the flue gas injected into the formation mixes with the steam before being conveyed into the formation through the injection well 101.
  • the pressure of the combustion in the oxy-boiler 100 in some embodiments produces the flue gas at desired injection pressures (e.g., 5000 kPa to 11,000 kPa) without requiring further processing.
  • the flue gas contains both water vapor from combustion products and the carbon dioxide that may be injected such that the second portion of the flue gas may contribute to water makeup requirements.
  • the second portion of the flue gas may pass to a processing unit before being injected.
  • the processing unit cools and compresses the flue gas to the injection pressure.
  • Use of the oxy-boiler 100 at the pad for the injection well 101 provides the second portion of the flue gas also at the pad such that transport of carbon dioxide to be injected may not be required to come from the central processing facility.
  • the flue gas emitted from the oxy-boiler 100 splits between the second portion for injection and a third portion sent back to the central processing facility for subsequent transport to an offsite storage site.
  • Amount of the flue gas in each of the second and third portions depends on desired carbon dioxide injection levels for a particular application.
  • embodiments of the invention may enable controlling the carbon dioxide injection levels all the way down to zero by diverting all the flue gas emitted to the third portion.
  • the steam and carbon dioxide mixture injected into the formation thus may contain less than 9%, less than 5% or less than 3% carbon dioxide by weight.
  • the third portion of the flue gas passes to the central processing facility and is processed prior to being introduced into a carbon dioxide pipeline or otherwise transported for use or sequestration offsite. Processing of the third portion of the flue gas may include dehydrating and compressing the carbon dioxide. Any water recovered from the third portion of the flue gas may also contribute to supplying makeup water to the oxy-boiler 100.
  • the carbon dioxide may make up by volume at least about 85%, at least about 90%, or at least about 95% of the flue gas.
  • the fuel-rich conditions and/or the pressurized combustion may provide the flue gas with oxygen content of below 0.001% by volume and thereby below pipeline or transport specifications. Since below such maximum oxygen content thresholds, the flue gas may not require an expensive oxygen removal treatment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Treating Waste Gases (AREA)
  • Air Supply (AREA)

Abstract

Les procédés et systèmes selon la présente invention se rapportent à une chaudière à oxygène utilisée pour produire de la vapeur injectée dans un puits pour faciliter la récupération d'hydrocarbures. Les conditions de fonctionnement d'un brûleur pour la chaudière à oxygène limitent la contamination en oxygène dans un gaz de combustion obtenu pour la récupération de dioxyde de carbone et limitent la taille de la chaudière à oxygène, qui peut ainsi être placée à proximité du puits au lieu de se trouver dans une installation de traitement centrale. Contrairement à une approche de production de vapeur directe où le dioxyde de carbone obtenu est mélangé à la vapeur, la chaudière à oxygène permet également la sélection d'un niveau souhaité d'injection de dioxyde de carbone, qui peut être apporté avec le gaz de combustion qui peut être rejeté de la chaudière à oxygène à une pression d'injection.
PCT/US2014/043171 2013-06-21 2014-06-19 Chaudière à oxygène à production assistée par vapeur WO2014205208A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201361837686P 2013-06-21 2013-06-21
US61/837,686 2013-06-21
US14/308,859 2014-06-19
US14/308,859 US20140373538A1 (en) 2013-06-21 2014-06-19 Oxy-boiler with steam assisted production

Publications (1)

Publication Number Publication Date
WO2014205208A1 true WO2014205208A1 (fr) 2014-12-24

Family

ID=52105281

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/043171 WO2014205208A1 (fr) 2013-06-21 2014-06-19 Chaudière à oxygène à production assistée par vapeur

Country Status (2)

Country Link
US (1) US20140373538A1 (fr)
WO (1) WO2014205208A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2904075A1 (fr) * 2014-09-16 2016-03-16 Husky Oil Operations Limited Procede de production de vapeur distribuee destine a des operations de recuperation d'hydrocarbures
CN113738323A (zh) * 2021-08-31 2021-12-03 莆田市城厢区鑫翀信息技术咨询服务中心 一种基于热采锅炉的蒸汽及烟道气的段塞式注气采油工艺
CN114278918B (zh) * 2021-12-30 2024-03-22 中国矿业大学 一种沉浸式防爆高温混合气发生装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060243448A1 (en) * 2005-04-28 2006-11-02 Steve Kresnyak Flue gas injection for heavy oil recovery
US20100282644A1 (en) * 2007-12-19 2010-11-11 O'connor Daniel J Systems and Methods for Low Emission Hydrocarbon Recovery
US20110186292A1 (en) * 2010-01-29 2011-08-04 Conocophillips Company Processes of recovering reserves with steam and carbon dioxide injection
US20120227964A1 (en) * 2011-03-07 2012-09-13 Conocophillips Company Carbon dioxide gas mixture processing with steam assisted oil recovery
US20130062065A1 (en) * 2011-09-13 2013-03-14 Conocophillips Company Indirect downhole steam generator with carbon dioxide capture

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060243448A1 (en) * 2005-04-28 2006-11-02 Steve Kresnyak Flue gas injection for heavy oil recovery
US20100282644A1 (en) * 2007-12-19 2010-11-11 O'connor Daniel J Systems and Methods for Low Emission Hydrocarbon Recovery
US20110186292A1 (en) * 2010-01-29 2011-08-04 Conocophillips Company Processes of recovering reserves with steam and carbon dioxide injection
US20120227964A1 (en) * 2011-03-07 2012-09-13 Conocophillips Company Carbon dioxide gas mixture processing with steam assisted oil recovery
US20130062065A1 (en) * 2011-09-13 2013-03-14 Conocophillips Company Indirect downhole steam generator with carbon dioxide capture

Also Published As

Publication number Publication date
US20140373538A1 (en) 2014-12-25

Similar Documents

Publication Publication Date Title
Chen et al. Oxy-fuel combustion of pulverized coal: Characterization, fundamentals, stabilization and CFD modeling
US7866389B2 (en) Process and apparatus for enhanced hydrocarbon recovery
US8353342B2 (en) Steam generation for steam assisted oil recovery
US9845667B2 (en) Hybrid solar thermal enhanced oil recovery system with oxy-fuel combustor
US11236594B2 (en) Production of hydrocarbon using direct-contact steam generation
US20060243448A1 (en) Flue gas injection for heavy oil recovery
CA2751186C (fr) Procede de production de vapeur a emissions nulles
CA2721992C (fr) Production d'un fluide pour la recuperation d'hydrocarbures
JP2018522190A (ja) 地熱プラントにおける帯水層流体の内部エネルギーの利用方法
US9702237B2 (en) Hybrid steam generation with carbon dioxide recycle
US20140373538A1 (en) Oxy-boiler with steam assisted production
CA2838527C (fr) Generateur de vapeur et procede pour generer de la vapeur
US20140060825A1 (en) Direct steam generation co2 output control
RU2595126C1 (ru) Установка для подземной газификации топлива
CA2917909C (fr) Systemes de production de vapeur chauffee et electrique
US9702542B2 (en) Methods and apparatus for power recovery in fluid catalytic cracking systems
US20180119949A1 (en) Oil and gas industry waste stream remediation system, method, and apparatus
US20140360726A1 (en) Steam generator and carbon dioxide capture
CA2920561C (fr) Generation de vapeur a l'aide du recyclage de dioxyde de carbone
Yamada et al. Test results of oxy-fuel combustion and outline of demonstration project in Australia
CA2947365A1 (fr) Methode et appareil de combustion d'asphaltene dans une installation de traitement central de drainage par gravite au moyen de vapeur

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: 14812894

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14812894

Country of ref document: EP

Kind code of ref document: A1