WO2012141983A2 - Système hors sol de stockage de fluide - Google Patents

Système hors sol de stockage de fluide Download PDF

Info

Publication number
WO2012141983A2
WO2012141983A2 PCT/US2012/032528 US2012032528W WO2012141983A2 WO 2012141983 A2 WO2012141983 A2 WO 2012141983A2 US 2012032528 W US2012032528 W US 2012032528W WO 2012141983 A2 WO2012141983 A2 WO 2012141983A2
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
supporting structures
liner
interior
clamp
Prior art date
Application number
PCT/US2012/032528
Other languages
English (en)
Other versions
WO2012141983A3 (fr
Inventor
Gerald D. MANN
Julian P. MASON
John M. RUGGERO
Robert F. Gatta
Daniel E. DEAVERS
Original Assignee
Portadam, 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 Portadam, Inc. filed Critical Portadam, Inc.
Priority to CA2833247A priority Critical patent/CA2833247A1/fr
Publication of WO2012141983A2 publication Critical patent/WO2012141983A2/fr
Publication of WO2012141983A3 publication Critical patent/WO2012141983A3/fr

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00Large containers
    • B65D88/74Large containers having means for heating, cooling, aerating or other conditioning of contents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00Component parts, details or accessories for large containers
    • B65D90/02Wall construction
    • B65D90/04Linings
    • B65D90/046Flexible liners, e.g. loosely positioned in the container
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00Methods or layout of installations for water supply
    • E03B1/02Methods or layout of installations for water supply for public or like main supply for industrial use
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B11/00Arrangements or adaptations of tanks for water supply
    • E03B11/02Arrangements or adaptations of tanks for water supply for domestic or like local water supply
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H7/00Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
    • E04H7/22Containers for fluent solids, e.g. silos, bunkers; Supports therefor
    • E04H2007/225Silos with retaining wall type wall elements, e.g. trench silos

Definitions

  • This invention relates, in general, to storage systems for holding large quantities of various fluids for use in industrial, commercial and energy applications, and more particularly systems for above ground impoundment of water for use in a hydraulic fracturing process.
  • Hydraulic Fracturing i.e., fracking
  • fracking Hydraulic Fracturing
  • the process involves drilling into shale formations (5,000 to 20,000 feet below the surface) and pumping fracturing fluid into the formation at great pressures fracturing the rock creating a conduit for the natural gas to be extracted through.
  • the fracking process requires millions of gallons of water, much of which is extracted from the shale formations and must be stored prior to being treated for any contaminants which they receive during the drilling process.
  • the present invention provides, in a first aspect, an above ground liquid storage system which includes a substantially impermeable liner bounding an interior for receiving a liquid.
  • a plurality of supporting structures and a base support the liner and the liquid when the liquid is received in the interior.
  • the liner extends from the base over a top end of the plurality of supporting structures and descends to the ground to form a cavity under the plurality of supporting structures.
  • a temperature controller in communication with the cavity controls a temperature of the cavity to control the temperature of liquid in the interior.
  • the present invention provides, in a second aspect, a method for use in above
  • ground storage of a liquid which includes connecting a plurality of supporting structures to one another such that a base is surrounded by the plurality of supporting structures.
  • a liner is located on the base and the plurality of supporting structures such that the liner extends from the base over a top end of the plurality of supporting structures and descends to the ground to form a cavity under the plurality of supporting structures.
  • a liquid is received in a cavity bounded by the liner.
  • a temperature of the cavity is controlled to control the temperature of the liquid.
  • FIG. 1 is a cutaway view of a portion of a supporting system supporting a basin in accordance with the present invention
  • FIG. 2 is a side cross-sectional view of the basin of FIG. 1;
  • FIG. 3 is a perspective view of a backside of the supporting system of the basin of FIG. 1;
  • FIG. 4 is a perspective view of the basin of FIG. 1 ;
  • FIG. 5 is a side cross-sectional view of a portion of the basin of FIG. 1
  • FIG. 6 is a side view of a clamp for connecting the supporting structures of the basin of FIG. 1 to each other;
  • FIG. 7 is a front view of the clamp of FIG. 6 including a cover in accordance with the present invention.
  • FIG. 8 is a perspective view of the basin of FIG. 1 including a conduit on a
  • Basin 51 may be configured (e.g., shaped and dimensioned) to any shape and various heights.
  • Basin 51 may include a series of interconnected supporting structures or frame units 100 spaced at intervals erected on a prepared surface (e.g., a concrete pad) to form a container skeleton or support structure.
  • Each frame unit includes a support portion 30 and a leg portion 40 facing an interior 50 of the basin.
  • a plurality of leg portions 40 may extend upwardly at an angle (e.g., about 43 degrees) to support basin 51 and any contents of interior 50.
  • the leg portions may be supported by a plurality of support portions 30.
  • the support portions and leg portions may be formed of wood, metal or plastic members fastened to each other and configured to carry the weight of a liquid (e.g., water from a fracturing process) in interior 50 of basin 51.
  • a liquid e.g., water from a fracturing process
  • Such support portion and leg portions could also be monolithically formed (e.g., by molding, casting, etc.).
  • leg portion may have a linear shape extending from base 70 at an angle less than 90 degrees and more than 30 degrees
  • the support portion e.g., support portion 30
  • the support portion may be formed of a V shaped structure having a bottom horizontal portion 31 and a side portion extending from an end of horizontal portion 31 (i.e., the end away from base 70) to contact leg portion 40.
  • a frame cavity 60 e.g., having a triangular shape
  • the cavity may be a variety of shapes (e.g., an equilateral triangle) depending on the configuration (e.g., shape and dimension) of the support portions and leg portions.
  • a thick geogrid material 20 may extend from a top 41 of each leg portion 40
  • Geogrid material 20 has the ability to restrict a liner 80 from forming pockets within frame units 100 due to the added rigidity it provides, thus keeping a surface of the liner facing the liquid as a smooth sided container.
  • Geogrid material 20 is attached at intervals to one or more of support portions 30 and/or leg portions 40 of the frame unit with zip ties or other connection mechanism(s).
  • Geo-grid material 20 may be a material configured for use as a base course for reinforcement and soil stabilization such as MARAFI BXG GEOGRID. Such a geo-grid material may have a tensile strength of 2,500 pounds per foot in a machine direction and 2,500 pounds per foot in a cross direction.
  • Base 70 i.e., horizontal portion surrounded by the frame units
  • Base 70 may be a portion of a concrete pad or other material capable of supporting the weight of liquid thereon in conjunction with the frames (e.g., frames 100) which surround such base.
  • basin 51 may be lined with a thick felt material 22 which overlaps geogrid material 20 a short distance and is attached to one or more of support portions 30 and/or leg portions 40 by means of zip ties or other connection mechanism(s).
  • the felt may be a needle punched non-woven geo-textile composed of polypropylene fibers formed with a stable network such that the fibers retain their relative position, such as MIRAFI 180N.
  • Such a geo-textile may be inert to biological degradation and resist naturally encountered chemicals, alkalis and acids.
  • the felt material 20 may have a weight of 271 grams per meter squared and a thickness of 1.8 mm, for example.
  • Liner 80 may be a continuous liner impermeable to liquids (e.g., water) installed on the container skeleton (i.e., frame units 100, geogrid material 20, base 70).
  • Liner 80 may be tailored (e.g., shaped and dimensioned) to fit the inside measurements of basin 51 (e.g., the inside surface of the plurality of leg portions 40 and base 70) and extend over the top (e.g., top 41) of frame units 100 and vertically down to the ground on the outside of the container, where it may be anchored to the ground by weight.
  • FIGS. 4 and 5 depict the liner pulled over the frame to the ground.
  • the liner may be any type of liner which may support the weight of water or another liquid when connected to frame units 100 and may be substantially impermeable.
  • liner 80 may be formed of a plurality of liner portions welded or otherwise connected to one another such that the seams are substantially impermeable.
  • liner 80 could be formed of a scrim reinforced polyethylene, such as DUR SKRIM. Such a liner could have an average thickness of about 30 mil, a weight of about 144 pounds per thousand square feet.
  • the liner may also have a tensile strength of 160 foot pounds per square inch in a machine direction and 150 foot pounds per square inch in a transverse direction.
  • the liner may be a reinforced laminate manufactured using high strength virgin grade polyethylene resins and stabilizers.
  • a liner cavity or area 81 under liner 80 and under leg portions 40, including cavities 60 may be heated, cooled or otherwise conditioned.
  • warmed air may be pumped into area 81 to maintain the area under leg portions 40 at a desired temperature such that any liquid held in interior 50 is held at a desired temperature due to the convection and conduction occurring in the area under leg portions 40 relative to leg portions 40, geogrid 20, any felt and liner 80.
  • area 81 under leg portions and under liner 80 may be heated (e.g., a heater 3 may be connected to a tube 4 to provide heated air as depicted in FIG.
  • a bubbling mechanism 11 may be utilized to inhibit freezing of the liquid in basin 50 to minimize any such damage to liner 80 as depicted in FIG. 7.
  • Such a bubbling mechanism could be any type of air generating mechanism which provides air to a liquid held in interior 50 to inhibit freezing of the liquid and thereby avoid any damage to basin 51, including liner 80, due to such freezing.
  • Basin 51 could also be configured to include under-floor or over-top piping to
  • Basin 51 could also be configured to allow the liquid/ slurry to weir over in a particular location at a desired elevation.
  • a drain/inlet may be provided in base 70 and liner 80 to allow fluid communication therethrough.
  • a manhole casting 5 may connect to an underside of basin 51 opposite interior 50 and seals 6 may be utilized on opposite sides of liner 80.
  • a manhole riser 7 may be coupled to casting 5 and the seals.
  • a conduit 8 may connect riser 7 to a manifold system 10 to allow the introduction and/or removal of liquids relative to interior 50 therethrough.
  • a shutoff valve 9 may be utilized to allow or prevent such fluid communication.
  • manhole casting 5 may be 6" to 8" in height.
  • the drain may be 24" in diameter on top (for the opening) and then 36" at the base which is between 5' and 7' below the top surface of the drain. These dimensions may be adjusted as desired, e.g., to adjust an amount of flow to fill and discharge the system.
  • a clamp cover 150 may protect the liner material (i.e., liner 80) from a clamp.
  • the cover may be formed of a foam material (e.g., 1 # low density form fit polyethylene foam or any other material which would properly act as a cushion/buffer to minimize risk of damage from impact, chaffing, puncturing or tearing) which fits over a clamp 160 which then rests against the geogrid material (e.g., geogrid material 20), which contacts the liner material.
  • the cover may be connected to the clamp by twine or zip ties, for example. Multiple clamps 160 may be utilized to connect individual frame units (e.g., units 100) to each other as depicted in the figures.
  • a top portion 153 and a bottom portion 154 may receive multiple leg portions 40 therebetween to connect such leg portions to one another.
  • the top portion and bottom portion could be connected to each other by a fastening mechanism, such as a bolt 155, for example.
  • Clamp 160 could be shaped and dimensioned in any way to allow adjacent frame units 100 (e.g., leg portions 40 thereof) to be connected to one another.
  • basin 51 may include a portion thereof having a top end lower than a
  • frame units 100 may include leg portion 40 of reduced length such that a top end in the local area of such reduced dimensioned leg portions are lower than the top ends of other leg portions adjacent such reduced dimension leg portions.
  • This reduced height may form a weir to allow liquid in interior 50 to flow out of basin 51 when such liquid reaches a top end of the reduced height portion.
  • Such a "weir over" arrangement may be useful in the case of the subsurface conditions don't allow for a underground method or when such an underground method is not cost effective.
  • basin 51 may include a conduit 200 which extends from
  • liner 80 in the vicinity of top end 41 into interior 50 and rests on a supporting surface, such as concrete blocks 210, as depicted in FIG. 8.
  • Such blocks may act as an anchoring point for the conduit and also may act as a diffusion device when fluid flows at high velocity through conduit 200. Liquid may flow into and/or out of basin 51 through conduit 200 (e.g., via pump(s)).
  • a support 220 may extend from one of blocks 210 to a position at/or near top end 41 to support conduit 200 as depicted in FIG. 8.
  • through-wall piping for filling / evacuating fluid materials may be used when sub-surface conditions don't permit installation of an in-floor system (e.g., conduit 8) or an over-the-top system cannot be properly stabilized (e.g., secured to dead-men inside basin) to minimize the risk of liner damage by pipe thrashing.
  • Such a through-wall piping system would extend through leg 40, liner 80, and geo-grid 20, for example, such that a conduit extending through leg 40, and liner 80 is sealed to inhibit leakage through liner 80 and leg 40 other than that flowing through such conduit.
  • the above described system may be used for the temporary short or long term storage of any form of liquid or slurry where in-ground impoundments or frack tanks are either not permitted or not viable.
  • Such systems are intended to be used above ground and are portable; the frame units and separate hardware can be individually stacked and transported by truck to any location including very remote locations. The systems may be easily assembled, broken down and re-assembled at different locations.
  • each of frames 100 may be releasably connected to adjacent frames of frames 100 to form the structure of basin 51 by a plurality of clamps (e.g., clamp 150) and/or other connecting mechanism (e.g., cables) thereby allowing a basin to be constructed in various sizes and shapes (e.g., by using different number of frames 100 in different configurations) and allowing the easy deconstruction and movement of such a basin from one place to another due to the releasable nature of the connections.
  • the frames may also be separated from each other and re -used after a basin has achieved a particular purpose, for example. The assembly and re-assembly may be done by hand with the assistance of lifting machinery.
  • the system (e.g., basin 51) may be used for central frack water storage in the Marcellus shale industry in Pennsylvania where limited access is available, for example. It may also be used for many other types of storage requirements. Basin 51 would not affect the existing water table and has a minimal impact on the ground and surrounding area where it is being used due to its above ground construction.
  • basin 51 may permit temporary storage of millions of gallons of fresh water used in industrial, commercial and energy applications. Basin 51 may be ten feet high, for example, providing a larger storage capacity when compared to similar above ground systems. The described systems may be portable and may be assembled, broken down re-located and re-assembled in a minimal time-frame as compared to similar above ground systems as described above. [0029] Basin 51 may be completely modular and can be constructed into any shape or size configuration based on needs (e.g., maximizing the drill pad footprint) of a user. The system described (e.g., basin 51) may have in-floor or thru-wall piping capabilities for quick fill and discharge requirements. The system described (e.g., basin 51) may have minimal labor and equipment requirements for assembly / disassembly. Further, the system described (e.g., basin 51) is environmentally friendly and requires minimal disturbance / impact to terrain.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sewage (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

L'invention porte sur un système hors sol de stockage de liquide qui comprend une doublure sensiblement imperméable qui délimite un volume intérieur destiné à recevoir un liquide. Plusieurs structures porteuses et une base supportent la doublure et le liquide lorsque le liquide est reçu dans le volume intérieur. La doublure s'étend à partir de la base jusqu'au-dessus d'une extrémité supérieure de la pluralité de structures porteuses et redescend au sol pour former une cavité sous la pluralité de structures porteuses. Une unité de commande de la température en communication avec la cavité règle la température de la cavité pour régler la température du liquide contenu dans le volume intérieur.
PCT/US2012/032528 2011-04-12 2012-04-06 Système hors sol de stockage de fluide WO2012141983A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2833247A CA2833247A1 (fr) 2011-04-12 2012-04-06 Systeme hors sol de stockage de fluide

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201161474431P 2011-04-12 2011-04-12
US61/474,431 2011-04-12
US13/165,118 2011-06-21
US13/165,118 US20120261414A1 (en) 2011-04-12 2011-06-21 Above ground fluid storage system

Publications (2)

Publication Number Publication Date
WO2012141983A2 true WO2012141983A2 (fr) 2012-10-18
WO2012141983A3 WO2012141983A3 (fr) 2013-01-10

Family

ID=47005665

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/032528 WO2012141983A2 (fr) 2011-04-12 2012-04-06 Système hors sol de stockage de fluide

Country Status (3)

Country Link
US (1) US20120261414A1 (fr)
CA (1) CA2833247A1 (fr)
WO (1) WO2012141983A2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8640901B2 (en) 2011-05-24 2014-02-04 Tetra Technologies, Inc. Portable dam assemblies and methods for assembling same
US8794872B2 (en) * 2012-08-16 2014-08-05 Alf Kolbjoern Sevre Method for constructing membrane lined structures for holding large fluid volumes
EP2935048A4 (fr) * 2012-12-14 2016-12-21 Mag Tank Hunter Llc Réservoir modulaire au-dessus du sol
US11230853B2 (en) 2013-04-24 2022-01-25 JWF Industries Large capacity above ground impoundment tank
US10240310B2 (en) 2014-06-06 2019-03-26 Larry J. Ragsdale, Jr. Berm or levee expansion system and method
US10538889B2 (en) 2017-05-24 2020-01-21 Larry J Ragsdale, Jr. Berm or levee expansion system and method
US10625185B1 (en) * 2019-03-01 2020-04-21 Precision Dewatering, Llc Portable filtration apparatus, systems and methods
US11486107B1 (en) 2021-09-24 2022-11-01 Portadam, Inc. Flood control system
US12018447B2 (en) 2022-06-20 2024-06-25 Water Diversion, Llc Flood protection and fluid diversion system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440112A (en) * 1982-05-10 1984-04-03 Lilyerd J R Freeze-proof livestock watering device and method
US5246308A (en) * 1990-02-20 1993-09-21 Brothers Gary S Fluid storage system and methods of installation
US6079904A (en) * 1997-01-15 2000-06-27 Arttec Innovation Trade Gmbh Transportable collapsible protective barrier, especially against high water
US7574834B2 (en) * 2006-05-04 2009-08-18 Michael Lance Murray Above ground water storage system and method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2814406A (en) * 1955-11-23 1957-11-26 Exxon Research Engineering Co Liquid storage tanks
WO1983000521A1 (fr) * 1981-07-29 1983-02-17 Blakeway, Stanley, Richard Piscine et son procede de fabrication
US5596952A (en) * 1995-07-24 1997-01-28 Bradford White Corporation Indirect water heater
US6079950A (en) * 1998-01-25 2000-06-27 Seneff; William Pool recirculation control system
US6637976B2 (en) * 1998-08-11 2003-10-28 Guardian Containment Corp. Underground storage vault
US20060285927A1 (en) * 2005-06-15 2006-12-21 Linpac Rotational Mouldings Pty. Ltd. Subterranean storage vessels and installation thereof
WO2008070752A1 (fr) * 2006-12-05 2008-06-12 David Lewis Systèmes et procédés pour la collecte, la rétention et la redistribution d'eau de pluie et procédés de construction de ceux-ci
US7987531B2 (en) * 2007-02-27 2011-08-02 West Paul E Portable floating hot tub
CA2759147A1 (fr) * 2011-11-16 2012-05-17 Magnetic Energy Services Inc. Ensemble de reservoir de stockage de fluides
CA2863590C (fr) * 2012-10-09 2016-03-08 Big Holding Systems Ltd. Systeme de stockage de liquide a double reservoir

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440112A (en) * 1982-05-10 1984-04-03 Lilyerd J R Freeze-proof livestock watering device and method
US5246308A (en) * 1990-02-20 1993-09-21 Brothers Gary S Fluid storage system and methods of installation
US6079904A (en) * 1997-01-15 2000-06-27 Arttec Innovation Trade Gmbh Transportable collapsible protective barrier, especially against high water
US7574834B2 (en) * 2006-05-04 2009-08-18 Michael Lance Murray Above ground water storage system and method

Also Published As

Publication number Publication date
WO2012141983A3 (fr) 2013-01-10
US20120261414A1 (en) 2012-10-18
CA2833247A1 (fr) 2012-10-18

Similar Documents

Publication Publication Date Title
US20120261414A1 (en) Above ground fluid storage system
US10301836B2 (en) Automatic relief valve system with water level sensing for a fiberglass swimming pool body
US7574834B2 (en) Above ground water storage system and method
US9217244B2 (en) Portable steel-reinforced HDPE pump station
US20090151791A1 (en) Method of Constructing a Secondary Containment Area
CZ292814B6 (cs) Mobilní zařízení na ochranu před povodní
US20150008218A1 (en) Telescopic containers for hydrocarbon production operations
US9217516B2 (en) Pipeline ballast device
US20130029410A1 (en) Digester tank for a biogas plant
US6514009B2 (en) Subterranean storage vessel system
CA2860660C (fr) Dispositif et procede pour ecoulement multivoies a partir d'un reservoir hydraulique verttical
US20120152960A1 (en) Fluid storage tank assembly
US9464451B1 (en) Holding tanks, systems and methods
US20130200079A1 (en) Above ground fluid storage system
JP2013529729A (ja) 水中の油井の暴噴後の油流出を克服する方法、及び、方法を実行するための設備
US20130087558A1 (en) Portable Above-Ground Containment System and Method
US20040020933A1 (en) Storage tank assembly
US20140048533A1 (en) Hydraulic hold down for a water storage tank
AU2001242562A1 (en) Improved storage tank assembly
CA2345843C (fr) Systeme de recipient de stockage souterrain
RU2206665C1 (ru) Пространственная фундаментная платформа
US11235923B2 (en) Flat panel above-ground storage tank
US20240084542A1 (en) Foundation for an offshore structure and method for installing a foundation
US20150114957A1 (en) Modular Fluid Storage Tank
NL1039733C2 (nl) Bouwtechnische compensatieelementen en -methodes, alsmede wijze van vervaardiging.

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12771114

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2833247

Country of ref document: CA

122 Ep: pct application non-entry in european phase

Ref document number: 12771114

Country of ref document: EP

Kind code of ref document: A2