EP2666958A1 - Verfahren zum Fracken eines Bohrlochs - Google Patents

Verfahren zum Fracken eines Bohrlochs Download PDF

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Publication number
EP2666958A1
EP2666958A1 EP13150380.7A EP13150380A EP2666958A1 EP 2666958 A1 EP2666958 A1 EP 2666958A1 EP 13150380 A EP13150380 A EP 13150380A EP 2666958 A1 EP2666958 A1 EP 2666958A1
Authority
EP
European Patent Office
Prior art keywords
natural gas
well
gas
recovered
injecting
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Withdrawn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
EP13150380.7A
Other languages
English (en)
French (fr)
Inventor
Arthur I. Shirley
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
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 Linde GmbH filed Critical Linde GmbH
Publication of EP2666958A1 publication Critical patent/EP2666958A1/de
Withdrawn legal-status Critical Current

Links

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
    • E21B43/25—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

Definitions

  • the present invention relates to a method for fraccing or hydrofracturing or hydraulically fracturing a well, in particular a production well, for example an oil well or a gas well, with natural gas.
  • hydraulic fracturing In the production of natural gas from shale or other "tight-gas" formations, hydraulic fracturing (or “frac") is used to break up the rock around the well bore and reduce the resistance to gas flow.
  • the frac technique generally requires injecting into the well large amounts of fluids that are
  • the fluids are pumped to high pressure to create large compressive forces around the well bore. These forces break the rock and create tiny fissures for gas flow. To aid in the penetration and stability of theses fissures, small amounts on the order of one to two percent by volume of hydrocarbons, mineral acids and "proppants" are added to the injected fluid.
  • produced fluids Thousands of tons of fluid may be injected during each frac job and much of this fluid is returned to the surface when the flow is reversed (hereafter called "produced fluids") and natural gas is produced from the well.
  • the produced fluid water is typically brackish with small amounts of the other materials injected into the formation. Reuse of these waters is problematic because of their composition and consequently, the produced fluid water must be treated for environmental concerns and disposed of in surface waters.
  • the produced fluid water must be injected into deep saline aquifers. If gases or condensable hydrocarbons such as liquefied petroleum gas are used, their availability and disposal after use can also create difficulties for the producer.
  • US 2012/0012321 A1 discloses a method for producing natural gas from hydrocarbon hydrates while simultaneously storing carbon dioxide in geological formations. More particularly, a method for extracting methane from methane hydrates is revealed, comprising the following steps:
  • an object of the present invention is to overcome the problems that earlier methods have experienced.
  • a well in particular a production well, for example an oil well or a gas well, is fracced or hydrofractured or hydraulically fractured to recover natural gas present in the well after injecting natural gas into the well.
  • the natural gas in particular the liquefied natural gas (LNG), for example the methane gas,
  • LNG liquefied natural gas
  • the natural gas in particular the high pressure natural gas, is fed into the well, in particular injected into the well, for example at rates ranging from about 10.000 standard cubic feed (scf) per minute to about 100.000 scf per minute.
  • the flow of the high pressure natural gas can preferably be stopped and/or preferably be reversed.
  • the natural gas produced and recovered from the well can be treated and made ready for use in other applications; in particular,
  • the present invention relates to a method for using natural gas, in particular liquefied natural gas (LNG), for example methane gas, for stimulating a well, in particular a production well, for example an oil well or a gas well.
  • natural gas in particular liquefied natural gas (LNG), for example methane gas
  • LNG liquefied natural gas
  • methane gas for example methane gas
  • the present invention addresses the problems associated with the disposal of producing fluid by using liquefied natural gas (LNG) as a fluid source.
  • LNG liquefied natural gas
  • the produced fluid will have roughly the same composition of natural gas and can be introduced into at least one pipeline without further processing.
  • the present invention provides for a method for fraccing or hydrofracturing or hydraulically fracturing a well, in particular an oil well or a gas well, to recover natural gas.
  • Natural gas in particular liquefied natural gas (LNG), can be shipped to the well site in large quantities, such as about thousand tons.
  • LNG liquefied natural gas
  • the liquefied natural gas can be rapidly vaporized utilizing a high-speed vaporization technique such as by at least one submersible combustion vaporizer or other known technique.
  • the vaporized liquefied natural gas which can, at least essentially, be methane gas, can be mixed with small amounts of additives to form a foam or dense fluid to the degree necessary to suspend at least one proppant.
  • psi pounds per square inch
  • MPa Megapascal
  • the flow of the pressurized natural gas can be stopped and/or can be reversed.
  • the natural gas, in particular the methane gas, which is recovered as both the pressurized dense fluid and the gas present in the fractured well can be separated from other produced fluids.
  • the recovered natural gas in particular the recovered methane gas, can be fed directly to at least one pipeline where the gas can be sent to at least one storage facility or fed to at least one other industrial operation.
  • the recovered natural gas can be combusted and the combustion products can be run through at least one heat exchanger, at least one expander and/or at least one turbine to produce electricity and/or steam.
  • LNG liquefied natural gas
  • the vaporized liquefied natural gas is essentially the same composition as the in-situ natural gas present in the well and when the flow is reversed, the produced fluids can be treated by the same equipment and in the same manner as the produced natural gas.

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)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Separation By Low-Temperature Treatments (AREA)
EP13150380.7A 2012-05-23 2013-01-07 Verfahren zum Fracken eines Bohrlochs Withdrawn EP2666958A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201261650588P 2012-05-23 2012-05-23

Publications (1)

Publication Number Publication Date
EP2666958A1 true EP2666958A1 (de) 2013-11-27

Family

ID=47520838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13150380.7A Withdrawn EP2666958A1 (de) 2012-05-23 2013-01-07 Verfahren zum Fracken eines Bohrlochs

Country Status (3)

Country Link
US (1) US20130312976A1 (de)
EP (1) EP2666958A1 (de)
WO (1) WO2013177114A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112832728A (zh) * 2021-01-08 2021-05-25 中国矿业大学 一种基于甲烷多级燃爆的页岩储层压裂方法

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140262285A1 (en) * 2013-03-12 2014-09-18 Rustam H. Sethna Methods for fraccing oil and gas wells
US10012064B2 (en) 2015-04-09 2018-07-03 Highlands Natural Resources, Plc Gas diverter for well and reservoir stimulation
US10344204B2 (en) 2015-04-09 2019-07-09 Diversion Technologies, LLC Gas diverter for well and reservoir stimulation
US10982520B2 (en) 2016-04-27 2021-04-20 Highland Natural Resources, PLC Gas diverter for well and reservoir stimulation
US11506037B2 (en) 2016-11-11 2022-11-22 Halliburton Energy Services, Inc. Liquefied natural gas (LNG) re-fracturing
WO2019022763A1 (en) * 2017-07-28 2019-01-31 Halliburton Energy Services, Inc. HYDROLYSABLE OILS FOR ACIDIFYING AND REDUCING INTERFACIAL VOLTAGE FOR UNDERGROUND TREATMENTS

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060065400A1 (en) * 2004-09-30 2006-03-30 Smith David R Method and apparatus for stimulating a subterranean formation using liquefied natural gas
US20120012321A1 (en) 2009-02-04 2012-01-19 Leibniz-Institut Fuer Meereswissenschaften Method for Producing Natural Gas from Hydrocarbon Hydrates While Simultaneously Storing Carbon Dioxide in Geological Formations

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5711376A (en) * 1995-12-07 1998-01-27 Marathon Oil Company Hydraulic fracturing process
JP4759571B2 (ja) * 2004-12-16 2011-08-31 フルオー・テクノロジーズ・コーポレイシヨン Ｌｎｇ再ガス化とｂｔｕ制御のための構成および方法
US8356487B2 (en) * 2007-09-07 2013-01-22 SPX Cooling Technologies Control system and method for vaporizer with heating tower
US8846585B2 (en) * 2010-09-17 2014-09-30 Clearwater International, Llc Defoamer formulation and methods for making and using same
CN103429846B (zh) * 2011-01-17 2016-02-10 米伦纽姆促进服务有限公司 用于地下地层的压裂系统和方法
US8342246B2 (en) * 2012-01-26 2013-01-01 Expansion Energy, Llc Fracturing systems and methods utilyzing metacritical phase natural gas
WO2013163476A1 (en) * 2012-04-25 2013-10-31 Anderson Kenneth W Systems and methods for converting liquid natural gas to compressed natural gas and to low pressure natural gas

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060065400A1 (en) * 2004-09-30 2006-03-30 Smith David R Method and apparatus for stimulating a subterranean formation using liquefied natural gas
US20120012321A1 (en) 2009-02-04 2012-01-19 Leibniz-Institut Fuer Meereswissenschaften Method for Producing Natural Gas from Hydrocarbon Hydrates While Simultaneously Storing Carbon Dioxide in Geological Formations

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112832728A (zh) * 2021-01-08 2021-05-25 中国矿业大学 一种基于甲烷多级燃爆的页岩储层压裂方法
CN112832728B (zh) * 2021-01-08 2022-03-18 中国矿业大学 一种基于甲烷多级燃爆的页岩储层压裂方法

Also Published As

Publication number Publication date
US20130312976A1 (en) 2013-11-28
WO2013177114A1 (en) 2013-11-28

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