WO2014081328A1 - Procédé pour améliorer la production d'hydrocarbures à partir d'un puits - Google Patents

Procédé pour améliorer la production d'hydrocarbures à partir d'un puits Download PDF

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Publication number
WO2014081328A1
WO2014081328A1 PCT/RU2012/000961 RU2012000961W WO2014081328A1 WO 2014081328 A1 WO2014081328 A1 WO 2014081328A1 RU 2012000961 W RU2012000961 W RU 2012000961W WO 2014081328 A1 WO2014081328 A1 WO 2014081328A1
Authority
WO
WIPO (PCT)
Prior art keywords
formation
hydrocarbons
production
enhancing
well
Prior art date
Application number
PCT/RU2012/000961
Other languages
English (en)
Inventor
Vladimir Danov
Dirk Diehl
Daria Alexandrovna MUSTAFINA
Sergey Pavlovich SOTSKIY
Evgeny Mikhailovich Sviridov
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to PCT/RU2012/000961 priority Critical patent/WO2014081328A1/fr
Publication of WO2014081328A1 publication Critical patent/WO2014081328A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B43/164—Injecting CO2 or carbonated water
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B43/25—Methods for stimulating production
    • E21B43/26—Methods for stimulating production by forming crevices or fractures
    • E21B43/2605—Methods for stimulating production by forming crevices or fractures using gas or liquefied gas
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B43/2401—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection by means of electricity
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B43/30—Specific pattern of wells, e.g. optimizing the spacing of wells

Definitions

  • the invention relates to a method for enhancing the
  • Shales are low-permeability formations that require stimulation via hydraulic fracturing of pre-existing fracture networks for practical exploitation.
  • shale formations often contain significant amounts of kerogen, a mixture of high molecular weight organic compounds, which can't be produced conventionally.
  • the kerogen In order to extract hydrocarbons from kerogen, the kerogen has to be heated in situ.
  • the US 2009/0 242 196 Al describes a method for extracting hydrocarbons from shale formations. Kerogen conversion is achieved by electromagnetic high-frequency heating, while the low permeability is overcome by using supercritical carbon dioxide as a solvent to aid oil extraction.
  • hydrocarbons from a well drilled into a hydrocarbon-bearing geological formation at least one electrical conductor is inserted into the formation and the formation is heated by application of an alternating current to the conductor.
  • the formation is fractured by injection of a supercritical fluid.
  • the method according to the invention leads to an active increase of reservoir permeability. Fracturing is further enhanced by the electromagnetic heating producing gas from the kerogen in the reservoir and evaporating reservoir water. In addition to acting as a stimulating fluid by creating microfractures, the supercritical fluid acts as a solvent, enhancing the recovery of hydrocarbons from the formation. In combination, these effects lead to a significant increase in yield from the reservoir.
  • carbon dioxide is used as supercritical fluid, since it is chemically inert, easy to separate and environmentally friendly.
  • the formation is heated to 60°C-160°C for oil production.
  • the formation is heated to 150°C-200°C for a gas production.
  • Choice of the temperature range depends on the chemical and geological features of the reservoir.
  • supercritical fluid produced together with the hydrocarbons is separated from the hydrocarbons and
  • the alternating current is low-frequency, e.g. in the 30-300 kHz range.
  • low-frequency alternating fields have no significant negative impact on human health, so safety clearance around the surface portion of the conductor can be relatively small without impacting workplace safety.
  • FIG 1 A schematic representation of a shale reservoir
  • FIG 2 a schematic representation of a shale reservoir
  • FIG 1 shows a reservoir exploited by a single well 16 with a vertical wellbore section 18 and a horizontal wellbore section 20 created by directional drilling.
  • FIG 2 multiple vertical wells 16 can be drilled.
  • an electrically conducting loop 22 is inserted into the formation 10 by means of directional drilling.
  • the loop 22 is connected to an alternating current source providing a current of about 1000 A with a frequency in the low frequency range of the electromagnetic spectrum.
  • carbon dioxide is injected through at least one of the wells 16.
  • carbon dioxide exhibits a liquid-like density and solvency combined with a gas-like viscosity, diffusivity, compressibility and lack of surface tension. As a result, it easily permeates even shale formations and can create wide networks of
  • the supercritical carbon dioxide helps extracting oil from the formation 10 and transporting it to the wells 16.
  • the carbon dioxide can be separated from the produced hydrocarbons and reinjected into the wells 16. This allows for high production rates and for the extraction of residual oil in depleting formations 10. Since the capillary pressure of the carbon dioxide is zero, negative effects on the short term fluid production of the formation 10 are avoided. List of reference signs

Abstract

L'invention concerne un procédé pour améliorer la production d'hydrocarbures à partir d'un puits (16) foré dans une formation géologique contenant des hydrocarbures (10), au moins un conducteur électrique (22) étant introduit dans la formation (10) et la formation étant chauffée (10) par application d'un courant alternatif provenant du conducteur. Selon l'invention invention, la formation (10) est fracturée par injection d'un fluide supercritique.
PCT/RU2012/000961 2012-11-20 2012-11-20 Procédé pour améliorer la production d'hydrocarbures à partir d'un puits WO2014081328A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/RU2012/000961 WO2014081328A1 (fr) 2012-11-20 2012-11-20 Procédé pour améliorer la production d'hydrocarbures à partir d'un puits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/RU2012/000961 WO2014081328A1 (fr) 2012-11-20 2012-11-20 Procédé pour améliorer la production d'hydrocarbures à partir d'un puits

Publications (1)

Publication Number Publication Date
WO2014081328A1 true WO2014081328A1 (fr) 2014-05-30

Family

ID=48699231

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2012/000961 WO2014081328A1 (fr) 2012-11-20 2012-11-20 Procédé pour améliorer la production d'hydrocarbures à partir d'un puits

Country Status (1)

Country Link
WO (1) WO2014081328A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107448180A (zh) * 2017-08-11 2017-12-08 中国石油天然气股份有限公司 一种稠油改质降粘方法
CN109184646A (zh) * 2018-10-29 2019-01-11 邓晓亮 电磁波加热实现超临界热复合强力驱油设备和方法
US10344579B2 (en) 2013-11-06 2019-07-09 Cnooc Petroleum North America Ulc Processes for producing hydrocarbons from a reservoir
CN113217009A (zh) * 2021-05-19 2021-08-06 中铁工程装备集团有限公司 一种微波增益型co2相变泄压防治岩爆方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4320801A (en) * 1977-09-30 1982-03-23 Raytheon Company In situ processing of organic ore bodies
US20070181301A1 (en) * 2006-02-06 2007-08-09 O'brien Thomas B Method and system for extraction of hydrocarbons from oil shale
US20110146982A1 (en) * 2009-12-17 2011-06-23 Kaminsky Robert D Enhanced Convection For In Situ Pyrolysis of Organic-Rich Rock Formations
WO2011107331A2 (fr) * 2010-03-03 2011-09-09 Siemens Aktiengesellschaft Procédé et dispositif de refoulement in situ de bitume ou d'huile extra-lourde

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4320801A (en) * 1977-09-30 1982-03-23 Raytheon Company In situ processing of organic ore bodies
US20070181301A1 (en) * 2006-02-06 2007-08-09 O'brien Thomas B Method and system for extraction of hydrocarbons from oil shale
US20110146982A1 (en) * 2009-12-17 2011-06-23 Kaminsky Robert D Enhanced Convection For In Situ Pyrolysis of Organic-Rich Rock Formations
WO2011107331A2 (fr) * 2010-03-03 2011-09-09 Siemens Aktiengesellschaft Procédé et dispositif de refoulement in situ de bitume ou d'huile extra-lourde

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10344579B2 (en) 2013-11-06 2019-07-09 Cnooc Petroleum North America Ulc Processes for producing hydrocarbons from a reservoir
CN107448180A (zh) * 2017-08-11 2017-12-08 中国石油天然气股份有限公司 一种稠油改质降粘方法
CN109184646A (zh) * 2018-10-29 2019-01-11 邓晓亮 电磁波加热实现超临界热复合强力驱油设备和方法
CN109184646B (zh) * 2018-10-29 2023-11-17 邓晓亮 电磁波加热实现超临界热复合强力驱油设备和方法
CN113217009A (zh) * 2021-05-19 2021-08-06 中铁工程装备集团有限公司 一种微波增益型co2相变泄压防治岩爆方法
CN113217009B (zh) * 2021-05-19 2022-04-05 中铁工程装备集团有限公司 一种微波增益型co2相变泄压防治岩爆方法

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