EP3249153A1 - Procédé et système de production de pétrole et/ou de gaz naturel - Google Patents

Procédé et système de production de pétrole et/ou de gaz naturel Download PDF

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Publication number
EP3249153A1
EP3249153A1 EP16171094.2A EP16171094A EP3249153A1 EP 3249153 A1 EP3249153 A1 EP 3249153A1 EP 16171094 A EP16171094 A EP 16171094A EP 3249153 A1 EP3249153 A1 EP 3249153A1
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EP
European Patent Office
Prior art keywords
carbon dioxide
gas
natural gas
stream
methane
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.)
Withdrawn
Application number
EP16171094.2A
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German (de)
English (en)
Inventor
Heinz Zimmermann
Helmut Fritz
Ernst Haidegger
Rainer Kemper
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.)
Linde GmbH
Original Assignee
Linde GmbH
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Filing date
Publication date
Application filed by Linde GmbH filed Critical Linde GmbH
Priority to EP16171094.2A priority Critical patent/EP3249153A1/fr
Publication of EP3249153A1 publication Critical patent/EP3249153A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • E21B43/164—Injecting CO2 or carbonated water

Definitions

  • the invention relates to a method and an arrangement for the extraction of oil and / or natural gas according to the preambles of the independent claims.
  • Petroleum or natural gas is typically found in deposits below the surface of the earth or in undersea deposits.
  • delivery lines are drilled down to the depth of an appropriate deposit in the soil or seabed.
  • the funding is essentially carried out in three phases.
  • first phase primary production, crude oil or natural gas can often be extracted without further measures by the autogenous pressure in the deposit.
  • the oil or natural gas is under the pressure of the burdensome earth layers.
  • the self-pressure of the deposit is no longer sufficient to transport the crude oil or natural gas to the surface.
  • the pressure in the reservoir is therefore increased by injecting water, steam or gas via lines, which are introduced by means of holes in the ground.
  • tertiary education also known as Enhanced Oil Recovery (EOR)
  • EOR Enhanced Oil Recovery
  • different fluids can be pressed under pressure into the vicinity of or directly into the deposit.
  • hot steam or gases such as nitrogen and carbon dioxide can be used.
  • carbon dioxide increases the pressure in the deposit and dissolves on the other under suitable conditions Oil. Due to the dissolved carbon dioxide in the petroleum whose viscosity is significantly reduced and improves the promotion.
  • the use of carbon dioxide and carbon dioxide-nitrogen mixtures for Tertiär concept of petroleum is for example from the DE 10 2009 038 444 A1 and the DE 10 2009 038 445 A1 known.
  • CBM Coal Bed Methane
  • Enhanced CBM Recovery Carbon dioxide can also be used to improve the exploitation of oil shales and oil sands.
  • gas mixtures are generally required with a relatively high proportion of carbon dioxide from 50 to 80 mol%.
  • impurities as argon, oxygen, water, carbon monoxide and nitrogen and sulfur oxides.
  • a low oxygen content may be desirable.
  • the maximum permissible oxygen concentration is usually given in such cases at 100 ppm, often only 10 ppm.
  • hydrocarbons contained in corresponding gas mixtures are often less disadvantageous.
  • the present invention proposes a method for the production of crude oil and / or natural gas and a corresponding arrangement with the features of the independent claims.
  • Embodiments are each the subject of the dependent claims and the following description.
  • Liquid and gaseous streams and the like may be “rich” or “poor” in one or more components as used herein, with “rich” for a content of at least 50%, 75%, 90%, 95%, 99%, 99% , 5%, 99.9% or 99.99% and “poor” for a content of at most 50%, 25%, 10%, 5%, 1%, 0.1% or 0.01% by molar, weight - or volume base can stand.
  • a corresponding stream is "derived” from or “formed” from another stream if it has at least some components contained in or derived from the other mixture.
  • a stream derived or formed in this sense may be derived from the other stream by, for example, separating or branching off one or more components, enriching or depleting one or more components, chemically or physically reacting one or more components, heating, cooling, pressurizing, and the like. If, in the following, it is mentioned that a material flow is formed "using" a further material flow, this means that it is also possible to use further material flows to form a corresponding material flow.
  • pressure level and "temperature level” to characterize pressures and temperatures, thereby indicating that corresponding pressures and temperatures in a given plant need not be used in the form of exact pressure or temperature values to realize the innovative concept.
  • pressures and temperatures typically range in certain ranges that are, for example, ⁇ 1%, 5%, 10%, 20% or even 50% about an average.
  • temperature levels typically range in certain ranges that are, for example, ⁇ 1%, 5%, 10%, 20% or even 50% about an average.
  • the pressure levels indicated here in bar are absolute pressures.
  • Methane for example, from natural gas, is currently mainly burned. However, material use is of great economic interest. This is how it is present process for the production of higher hydrocarbons from methane by oxidative coupling of methane (OCM) in intensive development. Oxidative methane coupling involves the direct conversion of methane to higher hydrocarbons in an oxidative, heterogeneously catalyzed process. Corresponding processes appear to be particularly promising for the production of ethylene.
  • OCM oxidative coupling of methane
  • a methane-rich material stream for example natural gas or a methane-rich material stream formed from natural gas
  • a reactor together with an oxygen-rich material stream.
  • a product stream is obtained which, in addition to reaction products of the oxidative methane coupling, in particular ethylene, optionally contains propylene, hydrogen, carbon dioxide and unreacted methane.
  • the product stream also contains nitrogen.
  • the oxygen-rich material stream used for the oxidative methane coupling is typically supplied by an air separation process.
  • the production of air products by means of appropriate air separation process has long been known and, for example, in H.-W. Haring (ed.), Industrial Gases Processing, Wiley-VCH, 2006 , in particular Section 2.2.5, "Cryogenic Rectification" described.
  • the present invention relates in particular to those air separation processes that are set up to produce gaseous, oxygen-rich material streams.
  • the present invention proposes a process for the production of crude oil and / or natural gas from a deposit in which carbon dioxide or a gas mixture containing carbon dioxide, in particular a gas mixture rich in carbon dioxide, is injected into the deposit.
  • the gas mixture containing carbon dioxide or the carbon dioxide is formed using an effluent of an oxidative methane coupling, to which a methane-containing feed stream is supplied.
  • the present invention proposes a procedural coupling between an oxidative methane coupling and a process for (tertiary) production of crude oil and / or natural gas, which can be dispensed with in particular costly lines over long distances to transport carbon dioxide.
  • the process according to the invention makes it possible to use the carbon dioxide produced during the oxidative methane coupling, which would otherwise remain unused.
  • the process for oxidative methane coupling may need to be implicated with considerable effort, the advantages set forth above and below outweigh this increased expense.
  • a particular advantage of the method according to the invention is obtained when the methane-containing feed stream fed to the oxidative methane coupling is formed using natural gas and / or associated gas extracted from the deposit by adding one or more processing steps to the natural gas or associated gas , in particular for the removal of interfering impurities, is subjected.
  • a process for oxidative methane coupling therefore also benefits directly from the coupling with a process for (tertiary) production of crude oil and / or natural gas.
  • Corresponding natural gas and / or associated gas does not have to be transported over long distances, so that corresponding cost-intensive pipelines can also be dispensed with in this regard.
  • the effluent of the oxidative methane coupling is subjected to a gas scrubbing, for example amine scrubbing, as is known in principle and in which the gas mixture containing the carbon dioxide or the carbon dioxide gas is formed using a gas scrub effluent.
  • a gas scrubbing for example amine scrubbing
  • Advantage of the method according to the invention i. the use of carbon dioxide or a corresponding carbon dioxide-containing gas mixture in the (tertiary) promotion of oil and / or natural gas is that in this case a lesser effort is required than it would be necessary for other purposes.
  • the carbon dioxide or the carbon dioxide-containing gas mixture is treated in such a way and optionally compressed and tempered in a suitable manner that it is suitable for use in the (tertiary) production of crude oil and / or natural gas.
  • a stream of water which can be used in a variety of ways, in particular in the context of the tertiary production of crude oil and / or natural gas.
  • a corresponding stream of water can already be used as part of a secondary funding of crude oil and / or natural gas and pressed into appropriate deposits in liquid form.
  • the inventive method develops particular advantages in desert areas with water scarcity.
  • a corresponding stream of water can be applied with at least one additive and used for hydraulic fracturing (fracking).
  • fracking hydraulic fracturing
  • a corresponding drinking water stream can be used for the local provision of drinking water, for example in a geographically isolated plant.
  • an irrigation stream can be formed, which can be used for example in agriculture.
  • the present invention also extends to an arrangement for producing crude oil and / or natural gas from a deposit adapted to inject carbon dioxide or a gas mixture containing carbon dioxide into the deposit.
  • the arrangement is characterized in that at least one reactor is provided for generating the carbon dioxide or the carbon dioxide-containing gas mixture, which is set up to carry out an oxidative methane coupling and feed with a methane-containing feed stream.
  • a corresponding system for implementing a method is set up, as has been explained above, and has corresponding means. For features and advantages of a corresponding arrangement is therefore expressly made to the above explanations.
  • FIG. 1 illustrates a method according to a particularly preferred embodiment of the invention in the form of a schematic process flow diagram.
  • FIG. 2 illustrates a method according to a particularly preferred embodiment of the invention in the form of a schematic process flow diagram and denoted overall by 100.
  • an oxidative methane coupling 1, ie one or more corresponding reactors, is fed with a feed stream a, for example a natural gas stream.
  • the feed stream a for example, in addition to a fresh feed comprising methane that has not previously been subjected to any further reacting process steps, it may also comprise one or more recycle streams formed, for example, from a product stream of the oxidative methane coupling 1.
  • an effluent b is obtained, which is first subjected to amine scrubbing 2 in the example shown.
  • the effluent b is subjected to a scrubbing stream having a scrubbing agent, so that in particular carbon dioxide contained in the effluent b can be washed out of the effluent b.
  • a carbon dioxide-containing effluent is obtained, from which a carbon dioxide-rich stream, illustrated here with c, can be recovered. Further details of the amine wash 2 are not illustrated for clarity.
  • a depleted of carbon dioxide by means of amine scrubbing is in FIG. 1 denoted by d.
  • the stream d can be subjected to a separation process known per se, in which a plurality of product streams e, f can be formed.
  • Corresponding product streams e, f may comprise, for example, ethylene, hydrogen and propylene.
  • the product streams e, f can be processed in a manner known per se and reacted, for example, to give polymer products.
  • FIG. 1 An essential aspect of the invention according to the in FIG. 1
  • the particularly preferred embodiment illustrated is the use of the carbon dioxide-rich stream c in a process for (tertiary) production of crude oil and / or natural gas.
  • the carbon dioxide-rich gas mixture of the stream c is treated in a conditioning step 4 in a suitable manner, for example, pressurized and / or heated. If the stream c contains water, it can be removed.
  • the conditioning step 4 may be carried out using heat recovered from the effluent b of the oxidative methane coupling to allow for advantageous heat integration.
  • the stream c is injected after appropriate conditioning in a petroleum and / or natural gas deposit, which are schematically illustrated here with 10 and 20, respectively.
  • extracted oil or natural gas is illustrated in the form of the material flows g or h and i.
  • g is a crude oil flow
  • h and i are called natural gas streams.
  • the stream downstream of the conditioning step 4 in particular does not have to be pressed separately into different deposits 10, 20. Rather, in the context of the present invention, a Co faced of natural gas in the form of the currents h or i together with a crude oil stream g from a common deposit possible.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP16171094.2A 2016-05-24 2016-05-24 Procédé et système de production de pétrole et/ou de gaz naturel Withdrawn EP3249153A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16171094.2A EP3249153A1 (fr) 2016-05-24 2016-05-24 Procédé et système de production de pétrole et/ou de gaz naturel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16171094.2A EP3249153A1 (fr) 2016-05-24 2016-05-24 Procédé et système de production de pétrole et/ou de gaz naturel

Publications (1)

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EP3249153A1 true EP3249153A1 (fr) 2017-11-29

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009038444A1 (de) 2008-10-21 2010-04-22 Linde Ag Erhöhung der Ausbeute von Rohölquellen
US20140012053A1 (en) * 2012-07-09 2014-01-09 Siluria Technologies, Inc. Natural gas processing and systems
DE102014014569A1 (de) * 2014-09-30 2016-03-31 Linde Aktiengesellschaft Verfahren zur Gewinnung von CO2

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009038444A1 (de) 2008-10-21 2010-04-22 Linde Ag Erhöhung der Ausbeute von Rohölquellen
DE102009038445A1 (de) 2008-10-21 2010-04-22 Linde Ag Verfahren zur Erdölfeuerung
US20140012053A1 (en) * 2012-07-09 2014-01-09 Siluria Technologies, Inc. Natural gas processing and systems
DE102014014569A1 (de) * 2014-09-30 2016-03-31 Linde Aktiengesellschaft Verfahren zur Gewinnung von CO2

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Industrial Gases Processing", 2006, WILEY-VCH
ZAVYALOVA, U. ET AL.: "Statistical Analysis of Past Catalytic Data on Oxidative Methane Coupling for New Insights into the Composition of High-Performance Catalysts", CHEMCATCHEM, vol. 3, 2011, pages 1935 - 1947, XP055313479, DOI: doi:10.1002/cctc.201100186

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