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EA201800338A1 - METHOD OF THERMAL-GAS TREATMENT OF THE LAYER - Google Patents

METHOD OF THERMAL-GAS TREATMENT OF THE LAYER

Info

Publication number
EA201800338A1
EA201800338A1 EA201800338A EA201800338A EA201800338A1 EA 201800338 A1 EA201800338 A1 EA 201800338A1 EA 201800338 A EA201800338 A EA 201800338A EA 201800338 A EA201800338 A EA 201800338A EA 201800338 A1 EA201800338 A1 EA 201800338A1
Authority
EA
Eurasian Patent Office
Prior art keywords
formation
inert gas
water
air
injected
Prior art date
Application number
EA201800338A
Other languages
Russian (ru)
Other versions
EA034629B1 (en
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 filed Critical
Priority to EA201800338A priority Critical patent/EA034629B1/en
Publication of EA201800338A1 publication Critical patent/EA201800338A1/en
Publication of EA034629B1 publication Critical patent/EA034629B1/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/24Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
    • E21B43/243Combustion in situ

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Incineration Of Waste (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Изобретение относится к нефтяной промышленности, в частности к способам добычи нефти с помощью внутрипластового горения. Задачей изобретения является повышение эффективности термогазовой обработки за счет повышения охвата пласта внутрипластовым горением и создания условий, обеспечивающих взрывобезопасность. Поставленная задача решается тем, что в способе термогазовой обработки пласта, включающем закачку в пласт через добывающую скважину воздуха, закачку инертного газа и воды с последующим отбором через нее нефти, при пластовой температуре не менее 70°C объем закачиваемого инертного газа определяют из условия не превышения содержания кислорода в газовой смеси более 10%, при этом закачку инертного газа - азота, или углекислого газа, или дымовых газов - осуществляют одновременно с воздухом, а после воспламенения пласта попеременно со смесью воздуха с инертным газом закачивают воду или воду с добавкой пенообразующего ПАВ. В качестве пенообразующего ПАВ используют сульфанол, или простой полуэфир на основе глицерина, или простой полуэфир на основе этиленгликоля.The invention relates to the oil industry, in particular to methods for oil production using in situ combustion. The objective of the invention is to increase the efficiency of thermogas treatment by increasing the coverage of the formation by in-situ combustion and creating conditions that ensure explosion safety. The problem is solved in that in the method of thermogas treatment of the formation, which includes injecting air into the formation through a producing well, injecting inert gas and water, followed by taking oil through it, at a formation temperature of at least 70 ° C, the volume of injected inert gas is determined from the condition of not exceeding the oxygen content in the gas mixture is more than 10%, while the inert gas — nitrogen, or carbon dioxide, or flue gas — is injected simultaneously with air, and after ignition of the formation, water or water with the addition of a foaming surfactant is injected alternately with the mixture of air with an inert gas. As a foaming surfactant, sulfanol or a half-ether based on glycerol or a simple half-ether based on ethylene glycol are used.

EA201800338A 2018-05-18 2018-05-18 Method of thermal-gas treatment of formation EA034629B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EA201800338A EA034629B1 (en) 2018-05-18 2018-05-18 Method of thermal-gas treatment of formation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EA201800338A EA034629B1 (en) 2018-05-18 2018-05-18 Method of thermal-gas treatment of formation

Publications (2)

Publication Number Publication Date
EA201800338A1 true EA201800338A1 (en) 2019-11-29
EA034629B1 EA034629B1 (en) 2020-02-28

Family

ID=68653580

Family Applications (1)

Application Number Title Priority Date Filing Date
EA201800338A EA034629B1 (en) 2018-05-18 2018-05-18 Method of thermal-gas treatment of formation

Country Status (1)

Country Link
EA (1) EA034629B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114352250A (en) * 2022-03-16 2022-04-15 中国石油大学(华东) An oil recovery method based on optimized steam flooding of flue gas components

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4415031A (en) * 1982-03-12 1983-11-15 Mobil Oil Corporation Use of recycled combustion gas during termination of an in-situ combustion oil recovery method
RU2386801C1 (en) * 2009-02-27 2010-04-20 Открытое акционерное общество "Татнефть" им. В.Д. Шашина Method of high-viscosity oil pool development with usage of in-situ combustion
RU2433258C1 (en) * 2010-07-28 2011-11-10 Открытое акционерное общество "Всероссийский нефтегазовый научно-исследовательский институт имени академика А.П. Крылова" (ОАО "ВНИИнефть") Method of thermal gas formation treatment
CN106677751B (en) * 2016-08-01 2019-02-26 中嵘能源科技集团有限公司 It is a kind of to inject foam air and oxygen-enriched Pintsch process heat chemistry composite air oil flooding method to oil reservoir

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114352250A (en) * 2022-03-16 2022-04-15 中国石油大学(华东) An oil recovery method based on optimized steam flooding of flue gas components
CN114352250B (en) * 2022-03-16 2022-05-13 中国石油大学(华东) Oil extraction method based on flue gas component optimization steam flooding

Also Published As

Publication number Publication date
EA034629B1 (en) 2020-02-28

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Legal Events

Date Code Title Description
MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AM AZ BY KZ KG TJ TM RU

NF4A Restoration of lapsed right to a eurasian patent

Designated state(s): AZ RU