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WO2018136423A1 - Utilisation de monoergols liquides et gel pour la stimulation de puits - Google Patents

Utilisation de monoergols liquides et gel pour la stimulation de puits Download PDF

Info

Publication number
WO2018136423A1
WO2018136423A1 PCT/US2018/013881 US2018013881W WO2018136423A1 WO 2018136423 A1 WO2018136423 A1 WO 2018136423A1 US 2018013881 W US2018013881 W US 2018013881W WO 2018136423 A1 WO2018136423 A1 WO 2018136423A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric liquid
liquid monopropellant
monopropellant
detonation cord
electric
Prior art date
Application number
PCT/US2018/013881
Other languages
English (en)
Inventor
Wayne N. Sawka
Trevor Summerfield
Original Assignee
Digital Solid State Propulsion, Inc.
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 Digital Solid State Propulsion, Inc. filed Critical Digital Solid State Propulsion, Inc.
Publication of WO2018136423A1 publication Critical patent/WO2018136423A1/fr

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
    • E21B43/263—Methods for stimulating production by forming crevices or fractures using explosives
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B43/00—Compositions characterised by explosive or thermic constituents not provided for in groups C06B25/00 - C06B41/00
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B47/00—Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosives; Suspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C5/00—Fuses, e.g. fuse cords
    • C06C5/06—Fuse igniting means; Fuse connectors
    • 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
    • E21B43/11—Perforators; Permeators
    • E21B43/116—Gun or shaped-charge perforators
    • E21B43/117—Shaped-charge perforators
    • 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
    • E21B43/267—Methods for stimulating production by forming crevices or fractures reinforcing fractures by propping

Definitions

  • This application relates generally to systems and processes for well stimulation, and in particular for stimulating subsurface hydrocarbon reservoirs by the introduction or injection of liquid and/or gel monopropellants.
  • Stimulation methods typically include injecting a treatment fluid (e.g., water) down a well to create a hydraulic fracture in a subsurface structure.
  • a treatment fluid e.g., water
  • in situ combustion is sometimes used.
  • solid propellant charges have been used for many years to create sufficient pressure via the treatment fluid for fractures in oil, gas, and water formations surrounding wells.
  • an apparatus for fracturing wells includes an electric liquid monopropellant device including a volume of electric liquid monopropellant, and a detonation cord in proximity to the electric liquid monopropellant device to ignite the volume of electric liquid monopropellant.
  • the detonation cord is adapted to ignite the electric liquid monopropellant at pressures exceeding 200 psi, and in some examples, exceeding 500 or 1,000 psi.
  • the detonation cord can be wrapped around the electric liquid monopropellant device in a variety of configurations to increase combustion rates and/or shape the event pulse of the combustion.
  • the liquid monopropellant devices are adapted to combust at temperatures less than 300 degrees Celsius.
  • a plurality of electric liquid monopropellant devices can be disposed within a well tool, and the plurality of electric liquid monopropellant devices in proximity to the detonation cord. Further, at least one shaped charge device may be disposed within the well tool and in proximity to the detonation cord to combust upon activation of the detonation cord.
  • electrically conductive wires are disposed in contact with the electric liquid monopropellant for sensitizing the electric liquid monopropellant prior to combustion.
  • an apparatus in another aspect, includes a container including an electric liquid monopropellant therein.
  • the container may include a bag, tube, or other package for containing the electric liquid monopropellant.
  • the apparatus can further include a detonation cord, an electrode, and/or an electric match to initiate combustion.
  • a process for fracturing wells.
  • a process includes introducing an electric liquid monopropellant into a well and igniting the electric liquid monopropellant in the well.
  • the liquid monopropellant is ignited when the pressure exceeds 200 psi, and in some examples when the pressure exceeds 500 or 1000 psi.
  • the electric liquid monopropellant can be introduced via a well gun.
  • FIGs. 1A-1E illustrate exemplary arrangements of electric liquid monopropellant devices, with or without the use of conventional shaped charges, within a well gun tool.
  • FIGs. 2A-2E illustrate various exemplary configurations of an electric liquid monopropellant devices and detonating cord.
  • FIGs. 3A-3C illustrate various exemplary configurations of an electric liquid monopropellant and detonating cord/wires.
  • FIGs. 4A-4C illustrate an exemplary process of pumping electrically ignitable monopropellant into a well casing and existing perforations and igniting to form new fractures.
  • FIG. 5 illustrates an exemplary electric liquid monopropellant device and detonation cord within a carrier gun.
  • FIG. 6 illustrates an exemplary electric liquid monopropellant device utilizing a partially insulated electrode for ignition.
  • an electric liquid monopropellant is used.
  • the electric liquid monopropellant may be contained in a device or package (e.g., a container, bag, receptacle, etc.) and in close proximity to a detonation or ignition cord.
  • a detonation cord can be at least partially wrapped around the electric liquid monopropellant device such that upon ignition of the detonation cord, the electric liquid monopropellant within the device or package detonates.
  • one or more electric liquid monopropellant devices can be disposed with one or more conventional shaped charge devices and proximate (e.g., wrapped) to a common detonation cord.
  • the shaped charge devices detonate at a faster rate than the electric liquid monopropellant, thereby providing a perforation of a well tool, well bore, and/or surrounding structure, prior to detonation of the electric liquid monopropellant.
  • electric liquid monopropellant can be introduced or pumped into well structures directly, e.g., via a well or gun tool, without a device or package containing the liquid. This allows the electric liquid monopropellant to flow into cracks and other structures of the well.
  • the well bore can then be capped or otherwise pressurized and the electric liquid monopropellant detonated, thereby creating new fractures and/or extending existing fractures.
  • FIGs. 1A-1D illustrate various arrangements of shaped charges (SC) 102 and electric liquid monopropellant (ELP) devices 100 disposed within a well gun tool 110, which may be used introduce one or more ELP devices 100 into a well structure.
  • the ELP devices 100 can be packaged to operate in conjunction with or without SC 102 in perforation guns or gas generating guns (e.g., GasGun or StimTube) that use conventional solid propellants for well stimulation.
  • perforation guns or gas generating guns e.g., GasGun or StimTube
  • FIG. IE illustrates an arrangement of multiple ELP devices 100 without the use of shaped charges.
  • SC 102 and ELP devices 100 are shown disposed within a gun tool 110, which may used within a well casing, e.g., within a well formation or structure that is to be fractured.
  • a detonation cord 112 is shown running adjacent to and/or through SC 102 and ELP devices 100. Upon ignition of detonation cord 112 the SC 102 and ELP devices 100 combust. Typically, SC 102 detonate more quickly than the ELP devices 100, perforating the casing of the well gun and/or structures within the well, which is followed by combustion of the ELP devices 100.
  • ELP devices 100 may include an electric liquid monopropellant, such as green electric monopropellant, e.g., a HAN based liquid monopropellant that can be electrically ignited.
  • an electric liquid monopropellant such as green electric monopropellant, e.g., a HAN based liquid monopropellant that can be electrically ignited.
  • green electric monopropellant e.g., a HAN based liquid monopropellant that can be electrically ignited.
  • One such liquid monopropellant is sold under the product name "GEM Mod 3 Green Electrical Monopropellant," and sold by Digital Solid State Propulsion Inc., which generally comprises Hydroxylammonium Nitrate/2,2'-dipyridyl/ Ammonium Nitrate/W ater/1 ,2,4- triazole/lH-pyrazole (see also, e.g., https://www.dsspropulsion.com/propellant-products/). Similar electric liquid monopropellants are described in U.S
  • the electric liquid monopropellant may also be in a gel form.
  • gelling materials may include fumed silica, polyvinyl alcohol, and the like. Progressively thicker gels will cause the propellant to burn more slowly.
  • Exemplary liquid propellants can also be foamed using such gelling agent described above and Nitrogen gas. For example, rapid mixing, high speed blending or other methods can be used to entrain and suspend small nitrogen bubbles in the propellant gel. The propellant can also be made to bum faster by adding silica micro-balloons. These bubbles or balloons will cause the propellant to burn faster in the tool because of the additional surface area created.
  • Such exemplary electric liquid monopropellants at normal surface temperatures and pressures typically require electrical power to ignite, however, at pressures typically found within wells, e.g., greater than 200 psi, and often greater than 500 or 1000 psi, the electric liquid monopropellant is ignitable via conventional detonation cords.
  • electric liquid monopropellant can be packaged as discrete devices, e.g., ELP devices 100, and ignited via detonation cords within a well.
  • ELP devices 100 can include plastic containers, bags, tubes, cylinders, hoses, and the like to package and contain electric liquid monopropellant as discrete propellant charges.
  • FIGs. 2A-2E illustrate various examples of wrapping or bringing a detonation cord 112 in proximity to an ELP device 100 to initiate combustion thereof.
  • increasing the surface area of the ELP device 100 covered by the detonation cord 1 12 results in a faster, more uniform combustion of the liquid monopropellant within ELP device 100.
  • wrap geometry and surface contact area configurations can be used to vary the combustion event's pulse shape as desired.
  • FIGs. 3A-3B illustrate examples where the liquid monopropellant within the ELP device 300 is ignited directly by heat or electricity (as opposed to being disposed adjacent or proximate a detonation cord external to the ELP device 300, i.e., where the electric liquid monopropellant is separated from the detonation cord by the packaging or container).
  • a detonation cord 312 may be passed through ELP device 300 directly, and thus in direct contact with electric liquid monopropellant 301 therein.
  • multiple detonation cords or a single cord spiraling within ELP device 300 may be used to increase the surface area of the detonation cord with respect to the liquid monopropellant therein.
  • FIG. 3B illustrates an example where electrically conductive wires 314 are within ELP device 320 or otherwise in electrical contact with liquid monopropellant 301 therein. Providing sufficient power to the conductive wires 314 ignites the liquid monopropellant 301. Conductive wires 314 may provide direct current, alternating current, or pulsed power to initiate combustion. In this example, liquid monopropellant within ELP device 300 would burn from left to right, however, multiple sets of conductive wires disposed within ELP device 300 are possible, including pairs disposed on opposing sides of ELP device 300, to provide other burn patterns and/or rates. Additionally, coils or plates could be used to spread the electric power to the liquid monopropellant 301.
  • FIG. 3C illustrates an exemplary design where an electric match 316, e.g., a resistive coil, spark, pyrotechnic device, or other device, is used to create sufficient heat within liquid monopropellant 301 of ELP device 300 to initiate ignition thereof.
  • ELP device 300 in this example would ignite and burn left to right, but multiple electric matches may be used in various configurations as desired.
  • FIGs. 4A-4C illustrate an exemplary method of using electric liquid monopropellant 401 within a well to create new cracks or fractures in surrounding structures.
  • a well tool 410 is inserted into a perforated well.
  • An electric liquid monopropellant 401 is then pumped into the well casing and the surrounding perforated well as shown in FIG. 4B.
  • the well may also be capped off or otherwise obstructed to increase the pressures within the perforated well, increasing the amount of electric liquid monopropellant into surround perforations.
  • the electric liquid monopropellant 401 is then ignited to create new cracks or fractures 490 within the well. This process may be repeated if desired to further create new cracks or fractures within the well.
  • a down hole power source may be used for igniting propellant.
  • one or more capacitors can be used and slowly charged over time and rapidly discharged to ignite the propellant.
  • low density ceramic proppants can be suspended within the electric liquid propellant and transported/dispersed into the newly formed rock fractures during the combustion event. Further, ignition of the electric liquid monopropellant can be initiated via a submerged container of catalyst that is thermally or mechanically breached to release the catalyst.
  • FIG. 5 illustrates an exemplary ELP device 500 that uses an elongated bag 540 containing electric liquid monopropellant 501 that can be disposed within a carrier gun 510. A detonation cord 512 can be run through or otherwise approximate the elongated bag 540 for detonation. The carrier gun 510 can then be disposed down well for detonation therein.
  • FIG. 6 illustrates an exemplary ELP device 600 that includes a container (e.g., a rigid plastic container or bag) 602, with a partially insulated electrode 660 passing through the liquid monopropellant 601.
  • a container e.g., a rigid plastic container or bag
  • the insulated electrode 660 can have selective areas 662 exposed along its length to provide a desired ignition partem to the liquid monopropellant 601.

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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)
  • Organic Chemistry (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Electrotherapy Devices (AREA)

Abstract

Appareil et procédé de fracturation de puits. Dans un exemple, un appareil comprend un dispositif de monoergol liquide électrique comprenant un volume de monergol liquide électrique et un cordon de détonation à proximité du dispositif de monoergol liquide électrique, pour allumer le volume de monoergol liquide électrique lors de l'activation du cordon de détonation. Le cordon de détonation est conçu pour allumer le monoergol liquide électrique à des pressions dépassant 200 psi et, dans certains exemples, dépassant 500 ou 1000 psi. Le cordon de détonation peut être enroulé autour du dispositif de monoergol liquide électrique dans une variété de configurations pour augmenter les vitesses de combustion et/ou la forme de l'impulsion d'événement de la combustion
PCT/US2018/013881 2017-01-17 2018-01-16 Utilisation de monoergols liquides et gel pour la stimulation de puits WO2018136423A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762447294P 2017-01-17 2017-01-17
US62/447,294 2017-01-17

Publications (1)

Publication Number Publication Date
WO2018136423A1 true WO2018136423A1 (fr) 2018-07-26

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AR (1) AR110902A1 (fr)
WO (1) WO2018136423A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112018008064T5 (de) 2018-12-28 2021-06-17 Halliburton Energy Services, Inc. Instrumentiertes Aufbrechziel für Datenerfassung von simuliertem Bohrloch
US11352859B2 (en) 2019-09-16 2022-06-07 Halliburton Energy Services, Inc. Well production enhancement systems and methods to enhance well production
US11053786B1 (en) 2020-01-08 2021-07-06 Halliburton Energy Services, Inc. Methods for enhancing and maintaining effective permeability of induced fractures
WO2024015866A1 (fr) * 2022-07-12 2024-01-18 Hunting Titan, Inc. Outil et procédé pour opérations de tir sécurisées dans une cavité

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018293A (en) * 1976-01-12 1977-04-19 The Keller Corporation Method and apparatus for controlled fracturing of subterranean formations
US6098516A (en) * 1997-02-25 2000-08-08 The United States Of America As Represented By The Secretary Of The Army Liquid gun propellant stimulation
US20010001418A1 (en) * 1996-09-09 2001-05-24 Wesson David S. Apparatus and method for perforating and stimulating a subterranean formation
US20110094745A1 (en) * 2006-09-25 2011-04-28 Frazier W Lynn Downhole perforation tool
US20140174313A1 (en) * 2012-12-24 2014-06-26 Raytheon Company Electrically operated propellants
US20150047526A1 (en) * 2008-05-16 2015-02-19 Digital Solid State Propulsion, Inc. Electrode ignition and control of electrically ignitable materials
CN105422074A (zh) * 2015-11-23 2016-03-23 中北大学 电起爆液体药动态压裂器
WO2017204807A1 (fr) * 2016-05-26 2017-11-30 Halliburton Energy Services, Inc. Procédés pour améliorer des applications de charge à commande électrique dans des formations souterraines

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018293A (en) * 1976-01-12 1977-04-19 The Keller Corporation Method and apparatus for controlled fracturing of subterranean formations
US20010001418A1 (en) * 1996-09-09 2001-05-24 Wesson David S. Apparatus and method for perforating and stimulating a subterranean formation
US6098516A (en) * 1997-02-25 2000-08-08 The United States Of America As Represented By The Secretary Of The Army Liquid gun propellant stimulation
US20110094745A1 (en) * 2006-09-25 2011-04-28 Frazier W Lynn Downhole perforation tool
US20150047526A1 (en) * 2008-05-16 2015-02-19 Digital Solid State Propulsion, Inc. Electrode ignition and control of electrically ignitable materials
US20140174313A1 (en) * 2012-12-24 2014-06-26 Raytheon Company Electrically operated propellants
CN105422074A (zh) * 2015-11-23 2016-03-23 中北大学 电起爆液体药动态压裂器
WO2017204807A1 (fr) * 2016-05-26 2017-11-30 Halliburton Energy Services, Inc. Procédés pour améliorer des applications de charge à commande électrique dans des formations souterraines

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Publication number Publication date
AR110902A1 (es) 2019-05-15
US20180202277A1 (en) 2018-07-19

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