EP2735697A1 - Verfahren und System zur Verhinderung des Kontakts eines korrosiven Verdrängergases mit korrosionsanfälligen Erdgasproduktionseinrichtungen - Google Patents

Verfahren und System zur Verhinderung des Kontakts eines korrosiven Verdrängergases mit korrosionsanfälligen Erdgasproduktionseinrichtungen Download PDF

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Publication number
EP2735697A1
EP2735697A1 EP12194473.0A EP12194473A EP2735697A1 EP 2735697 A1 EP2735697 A1 EP 2735697A1 EP 12194473 A EP12194473 A EP 12194473A EP 2735697 A1 EP2735697 A1 EP 2735697A1
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EP
European Patent Office
Prior art keywords
corrosive
formation
gas
displacement
natural gas
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Withdrawn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
EP12194473.0A
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English (en)
French (fr)
Inventor
Friedrich Christoph Seeberger
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.)
Shell Internationale Research Maatschappij BV
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Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to EP12194473.0A priority Critical patent/EP2735697A1/de
Publication of EP2735697A1 publication Critical patent/EP2735697A1/de
Withdrawn legal-status Critical Current

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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
    • E21B43/164—Injecting CO2 or carbonated water
    • 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
    • E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium

Definitions

  • the invention relates to a method and system for inhibiting contact of a corrosive displacement gas with corrosion prone natural gas production facilities.
  • US patent 4,765,407 discloses a method for enhancing production of gas condensates from a gas condensate reservoir by injecting a mixture of carbon dioxide and nitrogen obtained from a Claus plant into the reservoir.
  • a disadvantage of this known injection technology is that a mixture of carbon dioxide and nitrogen is corrosive and will induce corrosion of corrosion prone fluid injection and production facilities.
  • Canadian patent application CA 2568358 discloses a method for fracturing a hydrate or shale oil containing formation by injecting liquid nitrogen into the formation.
  • a limitation of the known nitrogen displacement gas technologies is that they are either configured to enhance production from gas condensate, hydrate and/or shale oil containing formations or from tight reservoirs by fracturing and that they are not configured inject a large volume of displacement gas into a formation to enhance natural gas production from the formation.
  • a further limitation of the know nitrogen displacement gas injection technologies is that generation of displacement gas in Air Separation Units or other available displacement gas generation devices is expensive.
  • a method for enhancing natural gas production from an underground natural gas containing formation comprising injecting into the formation a non corrosive displacement gas comprising Nitrogen followed by injecting into the formation a corrosive displacement gas comprising Carbon Dioxide.
  • the non corrosive displacement gas may be injected into the reservoir formation as a slug which provides in the formation a barrier that inhibits mixing of the corrosive displacement gas with the natural gas and inhibits the corrosive displacement gas to reach corrosion prone natural gas production facilities.
  • a slug of water may be injected into the formation before injecting the corrosive displacement gas into the formation to provide an additional barrier that inhibits the corrosive displacement gas to reach corrosion prone natural gas production facilities.
  • the Nitrogen may be generated in an Air Separation Unit(ASU) of a power or other industrial plant in which a mixture of fuel oxygen enriched air generated by the ASU is combusted to generate electrical energy and the Carbon Dioxide may be obtained from flue gases of the plant.
  • ASU Air Separation Unit
  • a system for enhancing natural gas production from an underground natural gas containing formation comprising:
  • Nitrogen and Carbon dioxide generated as by-products of a power plant operated with oxygen enriched air significantly reduces capital and operating cost of the non corrosive and corrosive displacement gas injection into a gas containing formation.
  • the underground gas reservoir 20 is located in a permeable gas bearing formation layer, also known as the reservoir formation, which is located underneath an impermeable gas cap layer 21 and the Nitrogen (N 2 ) is injected via a Nitrogen injection well 22 into a part of the reservoir formation 20 at a distance to the production well at 20A of the reservoir formation 20 whilst natural gas (comprising CH 4 and other constituents) is produced via a natural gas production well 23.
  • a permeable gas bearing formation layer also known as the reservoir formation
  • the Nitrogen N 2
  • natural gas comprising CH 4 and other constituents
  • the reservoir formation 20 only comprises a minor fraction of water which is dispersed in the pores of the reservoir formation 20, so that there is no mobile water accumulation in this part of the reservoir formation 20.
  • the Nitrogen (N2) is injected into the water layer 24 to stimulate migration of natural gas (CH 4 ) from the water layer 24 and to enhance flux of natural gas (CH 4 ) through the reservoir formation 20 to the natural gas production well 23.
  • Figure 2C schematically shows how natural gas (CH 4 ) has been partly separated from the pores near the lower edge 20A of the reservoir formation 20 and pore water reaches the production well 23 leaving trapped or residual gas bubbles behind.
  • Figure 2D schematically shows an embodiment where the pores of substantially the entire reservoir formation 20 are filled with a water-gas mixture comprising pore water and natural gas (CH4), which mixture is stimulated to flow into the production well 23 by injecting Nitrogen into the injection well 22 near the lower edge of the reservoir formation 20.
  • a water-gas mixture comprising pore water and natural gas (CH4)
  • Figure 3 schematically shows how production of Natural Gas (CH 4 ) from a tight gas reservoir or residual gas formation 30 is enhanced by yet another embodiment of the Nitrogen Assisted Depletion Drive (NADD) or Nitrogen Enhanced Residual Gas (NERG) process according to the invention wherein Nitrogen is injected into possibly several Nitrogen injection wells 31A-D and natural gas (CH4) is produced via possibly several production wells 32A-D traversing the tight gas formation 30.
  • NADD Nitrogen Assisted Depletion Drive
  • NERG Nitrogen Enhanced Residual Gas

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  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Chemical Kinetics & Catalysis (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)
EP12194473.0A 2012-11-27 2012-11-27 Verfahren und System zur Verhinderung des Kontakts eines korrosiven Verdrängergases mit korrosionsanfälligen Erdgasproduktionseinrichtungen Withdrawn EP2735697A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12194473.0A EP2735697A1 (de) 2012-11-27 2012-11-27 Verfahren und System zur Verhinderung des Kontakts eines korrosiven Verdrängergases mit korrosionsanfälligen Erdgasproduktionseinrichtungen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12194473.0A EP2735697A1 (de) 2012-11-27 2012-11-27 Verfahren und System zur Verhinderung des Kontakts eines korrosiven Verdrängergases mit korrosionsanfälligen Erdgasproduktionseinrichtungen

Publications (1)

Publication Number Publication Date
EP2735697A1 true EP2735697A1 (de) 2014-05-28

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EP12194473.0A Withdrawn EP2735697A1 (de) 2012-11-27 2012-11-27 Verfahren und System zur Verhinderung des Kontakts eines korrosiven Verdrängergases mit korrosionsanfälligen Erdgasproduktionseinrichtungen

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EP (1) EP2735697A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2019056B1 (en) * 2017-06-12 2018-12-19 Circular Energy B V Power plant, a gas field, a method of exploitation of a subsurface hydrocarbon reservoir.
EP3470621A1 (de) 2019-01-02 2019-04-17 L2 Consultancy B.V. System und verfahren zur anpassung des drucks in einer untertägigen lagerstätte und system zur herstellung von mindestens einem gas zur anpassung des drucks in einer untertägigen lagerstätte
WO2020141153A1 (en) 2019-01-02 2020-07-09 L2 Consultancy B.V. System and method for adjusting pressure in a reservoir and system for producing at least one energy carrier

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4393936A (en) * 1981-09-21 1983-07-19 Union Oil Company Of California Method for the enhanced recovery of oil and natural gas
WO1987004420A1 (en) * 1986-01-23 1987-07-30 Kjelforeningen-Norsk Energi Nitrogen injection
US4765407A (en) 1986-08-28 1988-08-23 Amoco Corporation Method of producing gas condensate and other reservoirs
US5099921A (en) * 1991-02-11 1992-03-31 Amoco Corporation Recovery of methane from solid carbonaceous subterranean formations
WO2003018958A1 (en) * 2001-08-31 2003-03-06 Statoil Asa Method and plant for enhanced oil recovery and simultaneous synthesis of hydrocarbons from natural gas
CA2568358A1 (en) 2006-11-17 2008-05-17 James Q. Maguire In-situ method of producing oil and gas (methane), on-shore and off-shore
WO2008087154A1 (en) * 2007-01-19 2008-07-24 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process and apparatus for enhanced hydrocarbon recovery
US20110146978A1 (en) * 2009-12-17 2011-06-23 Greatpoint Energy, Inc. Integrated enhanced oil recovery process
WO2012021282A1 (en) 2010-08-09 2012-02-16 Conocophillips Company Method for enhanced gas hydrate permeability

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4393936A (en) * 1981-09-21 1983-07-19 Union Oil Company Of California Method for the enhanced recovery of oil and natural gas
WO1987004420A1 (en) * 1986-01-23 1987-07-30 Kjelforeningen-Norsk Energi Nitrogen injection
US4765407A (en) 1986-08-28 1988-08-23 Amoco Corporation Method of producing gas condensate and other reservoirs
US5099921A (en) * 1991-02-11 1992-03-31 Amoco Corporation Recovery of methane from solid carbonaceous subterranean formations
WO2003018958A1 (en) * 2001-08-31 2003-03-06 Statoil Asa Method and plant for enhanced oil recovery and simultaneous synthesis of hydrocarbons from natural gas
CA2568358A1 (en) 2006-11-17 2008-05-17 James Q. Maguire In-situ method of producing oil and gas (methane), on-shore and off-shore
WO2008087154A1 (en) * 2007-01-19 2008-07-24 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process and apparatus for enhanced hydrocarbon recovery
US20110146978A1 (en) * 2009-12-17 2011-06-23 Greatpoint Energy, Inc. Integrated enhanced oil recovery process
WO2012021282A1 (en) 2010-08-09 2012-02-16 Conocophillips Company Method for enhanced gas hydrate permeability

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2019056B1 (en) * 2017-06-12 2018-12-19 Circular Energy B V Power plant, a gas field, a method of exploitation of a subsurface hydrocarbon reservoir.
EP3470621A1 (de) 2019-01-02 2019-04-17 L2 Consultancy B.V. System und verfahren zur anpassung des drucks in einer untertägigen lagerstätte und system zur herstellung von mindestens einem gas zur anpassung des drucks in einer untertägigen lagerstätte
WO2020141153A1 (en) 2019-01-02 2020-07-09 L2 Consultancy B.V. System and method for adjusting pressure in a reservoir and system for producing at least one energy carrier
NL2025903A (en) 2019-01-02 2020-10-22 L2 Consultancy B V System and method for adjusting pressure in a reservoir and system for producing at least one energy carrier

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