WO2021007645A1 - A device for treating a bottom-hole formation wellbore - Google Patents

A device for treating a bottom-hole formation wellbore Download PDF

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Publication number
WO2021007645A1
WO2021007645A1 PCT/CA2019/050970 CA2019050970W WO2021007645A1 WO 2021007645 A1 WO2021007645 A1 WO 2021007645A1 CA 2019050970 W CA2019050970 W CA 2019050970W WO 2021007645 A1 WO2021007645 A1 WO 2021007645A1
Authority
WO
WIPO (PCT)
Prior art keywords
chemical composition
weight
combustible chemical
wellbore
ammonium nitrate
Prior art date
Application number
PCT/CA2019/050970
Other languages
French (fr)
Inventor
Jordan BRENNAN
Original Assignee
Lamrock Canada Incorporated
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 Lamrock Canada Incorporated filed Critical Lamrock Canada Incorporated
Priority to CA3143625A priority Critical patent/CA3143625A1/en
Priority to US17/597,594 priority patent/US20220259945A1/en
Priority to EP19937754.0A priority patent/EP3997305A4/en
Priority to AU2019457059A priority patent/AU2019457059A1/en
Priority to PCT/CA2019/050970 priority patent/WO2021007645A1/en
Priority to IL289755A priority patent/IL289755A/en
Priority to BR112022000567A priority patent/BR112022000567A2/en
Priority to PE2022000058A priority patent/PE20221246A1/en
Publication of WO2021007645A1 publication Critical patent/WO2021007645A1/en
Priority to ECSENADI20222883A priority patent/ECSP22002883A/en
Priority to CONC2022/0001421A priority patent/CO2022001421A2/en

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
    • E21B37/00—Methods or apparatus for cleaning boreholes or wells
    • E21B37/06—Methods or apparatus for cleaning boreholes or wells using chemical means for preventing or limiting, e.g. eliminating, the deposition of paraffins or like substances
    • 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
    • E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
    • E21B36/008—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using chemical heat generating means
    • 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
    • E21B37/00—Methods or apparatus for cleaning boreholes or wells
    • 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
    • E21B37/00—Methods or apparatus for cleaning boreholes or wells
    • E21B37/08—Methods or apparatus for cleaning boreholes or wells cleaning in situ of down-hole filters, screens, e.g. casing perforations, or gravel packs
    • 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
    • E21B43/255—Methods for stimulating production including the injection of a gaseous medium as treatment fluid into the formation

Definitions

  • the present invention relates to a device for treating a wellbore and, in particular, to a device which generates hydrochloric acid gas, hydrofluoric acid gas or a combination thereof to treat a bottom-hole of a wellbore.
  • a decrease in the permeability of a bottom-hole formation of a wellbore may result in a decrease in hydrocarbon recovery.
  • the decrease in the permeability of the bottom-hole formation may be the result of dilatation due to asphaltic deposits or volumetric readjustments of bore space structure.
  • the decrease in the permeability of the bottom-hole formation may be the result of clogging from clay swelling or deposits of foreign matter such as mechanical impurities, filtrates, well knitting, drill-in fluids, well development fluids, and cement.
  • Sand and paraffin-hydrate plugs are also known to cause a decrease in the permeability of the bottom-hole formation as are calcium carbonate scale, calcium sulfate scale, and other scale. It is therefore desirable to treat the bottom-hole formation of a wellbore to increase the permeability of a bottom-hole formation and increase hydrocarbon recovery.
  • the device comprises a firing head and seal block assembly at a proximal end thereof and a bullnose assembly at a distal end thereof.
  • a carrier tube extends between the firing head and seal block assembly and the bullnose assembly.
  • the carrier tube contains a combustible chemical composition which generates hydrochloric acid gas or hydrofluoric acid gas or a combination thereof when combusted.
  • a dispersion tube extends from the carrier tube.
  • the dispersion tube has a lateral opening. The lateral opening may be a slot or an aperture.
  • the combustible chemical composition may comprise between 30% and 60% by weight hexachloroethane and between 40% and 70% by weight ammonium nitrate.
  • the combustible chemical composition may alternatively comprise between 30% and 60% by weight polyvinyl chloride and between 40% and 70% by weight ammonium nitrate.
  • the combustible chemical composition may still alternatively comprise between 0% and 5% by weight polyvinyl chloride, between 25% and 55% by weight hexachloroethane, and between 40% and 70% by weight ammonium nitrate.
  • the combustible chemical composition may still yet alternatively comprise between 5% and 25% by weight polytetrafluoroethylene, between 25% and 55% by weight hexachloroethane, and between 40% and 70% by weight ammonium nitrate.
  • the combustible chemical composition may be disposed in a sleeve.
  • the sleeve may be a polyvinyl chloride sleeve.
  • the combustible chemical composition may include a plurality of solid puck shaped members.
  • the combustible chemical composition may further include an adhesive binding adjacent ones of the solid puck shaped members.
  • the combustible chemical composition may further include a combustion catalyst.
  • Figure 1 is an elevation, partially sectional, view showing a device for treating a bottom-hole formation of a vertical wellbore
  • Figure 2 is an exploded, perspective view of the device for treating a bottom- hole formation of a wellbore shown in Figure 1;
  • Figure 3 is an elevation, fragmentary and partially sectional, view of the device for treating a bottom -hole formation of a wellbore shown in Figure 1;
  • Figure 4 is an exploded, perspective view of another device for treating a bottom-hole formation of a wellbore.
  • Figure 5 is an exploded, perspective view of still another device for treating a bottom-hole formation of a wellbore.
  • a device 10 for treating a bottom-hole formation 12 of a wellbore 14 The device 10 is lowered into the wellbore 14 by a wireline 16 in this example. However, in other examples, coiled tubing or other suitable means may be employed to lower the device 10 into the wellbore 14.
  • the wellbore 14 is cased with a perforated casing 18.
  • the device 10 may also be employed to treat a wellbore provided with a slotted liner or an open hole wellbore.
  • the device 10 may be deployed in a vertical wellbore or horizontal wellbore.
  • the device may be deployed in a producing wellbore or an injection wellbore.
  • the device 10 is shown in greater detail in Figure 2.
  • the device 10 comprises a firing head and sealing block assembly 30 at a proximal end thereof and a bullnose assembly 32 at a distal end thereof.
  • a proximal end of a spacer tube 34 is coupled to the firing head and sealing block assembly 30.
  • a carrier tube 36 is coupled to a distal end of the spacer tube 34.
  • a dispersion tube 38 is coupled to a distal end of the carrier tube 36.
  • a distal end of the dispersion tube is coupled to the bullnose assembly 32.
  • There is a plurality of openings in the dispersion tube 38 which, in this example, are in the form of slots 40a and 40b.
  • the carrier tube 36 contains a combustible chemical composition which generates hydrochloric acid gas or hydrofluoric acid gas or a combination thereof when combusted.
  • Figure 3 shows a combustible chemical composition 42 contained in the carrier tube 36.
  • the combustible chemical composition 42 is contained in the carrier tube 36 and comprises a plurality of puck shaped members, for example, puck shaped member 44a and 44b which are fitted into the carrier tube 36.
  • a charge wire 46 provides a charge to combust the combustible chemical composition 42 contained in the carrier tube 36.
  • at least one of the puck shaped members is a combustion catalyst comprising epoxy resin, potassium dichromate, and ammonium nitrate.
  • a combustion catalyst is not required, but any suitable combustion catalyst may be employed.
  • Examples of the combustible chemical compositions are set out below. Examples 1-3 and 5-7 generate hydrochloric acid gas and examples 4 and 8 generate hydrochloric acid gas and hydrofluoric acid gas.
  • Chlorinated polyvinyl 0% to 5%
  • the device 10 may also be employed to treat a wellbore provided with a slotted liner or an open hole wellbore. It will also be understood by a person skilled in the art that the device 10 may be deployed in a vertical wellbore or horizontal wellbore. It will further be understood by a person skilled in the art that the device may be deployed in a producing wellbore or an injection wellbore. A perforating gun may be used with the device 10. Packers may also be employed to isolate the devices. [0019] Figure 4 shows another device 50 for treating a bottom -hole formation of a wellbore.
  • the device 50 is substantially similar to the device shown in Figures 1 to 3 with the notable exception that the dispersion tube 52 has lateral openings in the form of apertures 54a and 54b.
  • Figure 5 shows still another device 60 for treating a bottom-hole formation of a wellbore.
  • the device 60 is substantially similar to the device shown in Figures 1 to 3 with the notable exception that there is no dispersion tube and the carrier tube 62 has lateral openings in the form of apertures 64a and 64b.

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  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Incineration Of Waste (AREA)
  • Fuel Cell (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Fire-Extinguishing Compositions (AREA)
  • Drying Of Semiconductors (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

A device for treating a bottom-hole formation of a wellbore comprises a firing head and seal block assembly at a proximal end thereof and a bullnose assembly at a distal end thereof. A carrier tube extends between the firing head and seal block assembly and the bullnose assembly. The carrier tube contains a combustible chemical composition which generates hydrochloric acid gas or hydrofluoric acid gas or a combination thereof when combusted. A dispersion tube extends from the carrier tube. The dispersion tube has a lateral opening. The lateral opening may be a slot or an aperture. There is a charge wire electrically connecting the firing head and sealing block assembly to the combustible chemical composition.

Description

A DEVICE FOR TREATING A BOTTOM-HOLE FORMATION WELLBORE
BACKGROUND OF THE INVENTION
Field of the Invention
[0001] The present invention relates to a device for treating a wellbore and, in particular, to a device which generates hydrochloric acid gas, hydrofluoric acid gas or a combination thereof to treat a bottom-hole of a wellbore.
Description of the Related Art
[0002] It is known that a decrease in the permeability of a bottom-hole formation of a wellbore may result in a decrease in hydrocarbon recovery. The decrease in the permeability of the bottom-hole formation may be the result of dilatation due to asphaltic deposits or volumetric readjustments of bore space structure. Alternatively, the decrease in the permeability of the bottom-hole formation may be the result of clogging from clay swelling or deposits of foreign matter such as mechanical impurities, filtrates, well knitting, drill-in fluids, well development fluids, and cement. Sand and paraffin-hydrate plugs are also known to cause a decrease in the permeability of the bottom-hole formation as are calcium carbonate scale, calcium sulfate scale, and other scale. It is therefore desirable to treat the bottom-hole formation of a wellbore to increase the permeability of a bottom-hole formation and increase hydrocarbon recovery.
SUMMARY OF THE INVENTION
[0003] It is an obj ect of the present invention to provide an improved device for treating a bottom-hole formation of a wellbore. [0004] There is accordingly provided a device for treating a wellbore. The device comprises a firing head and seal block assembly at a proximal end thereof and a bullnose assembly at a distal end thereof. A carrier tube extends between the firing head and seal block assembly and the bullnose assembly. The carrier tube contains a combustible chemical composition which generates hydrochloric acid gas or hydrofluoric acid gas or a combination thereof when combusted. A dispersion tube extends from the carrier tube. The dispersion tube has a lateral opening. The lateral opening may be a slot or an aperture. There is a charge wire electrically connecting the firing head and sealing block assembly to the combustible chemical composition. [0005] The combustible chemical composition may comprise between 30% and 60% by weight hexachloroethane and between 40% and 70% by weight ammonium nitrate. The combustible chemical composition may alternatively comprise between 30% and 60% by weight polyvinyl chloride and between 40% and 70% by weight ammonium nitrate. The combustible chemical composition may still alternatively comprise between 0% and 5% by weight polyvinyl chloride, between 25% and 55% by weight hexachloroethane, and between 40% and 70% by weight ammonium nitrate. The combustible chemical composition may still yet alternatively comprise between 5% and 25% by weight polytetrafluoroethylene, between 25% and 55% by weight hexachloroethane, and between 40% and 70% by weight ammonium nitrate. [0006] The combustible chemical composition may be disposed in a sleeve. The sleeve may be a polyvinyl chloride sleeve. The combustible chemical composition may include a plurality of solid puck shaped members. The combustible chemical composition may further include an adhesive binding adjacent ones of the solid puck shaped members. The combustible chemical composition may further include a combustion catalyst. BRIEF DESCRIPTIONS OF DRAWINGS
[0007] The invention will be more readily understood from the following description of the embodiments thereof given, by way of example only, with reference to the accompanying drawings, in which:
[0008] Figure 1 is an elevation, partially sectional, view showing a device for treating a bottom-hole formation of a vertical wellbore;
[0009] Figure 2 is an exploded, perspective view of the device for treating a bottom- hole formation of a wellbore shown in Figure 1; [0010] Figure 3 is an elevation, fragmentary and partially sectional, view of the device for treating a bottom -hole formation of a wellbore shown in Figure 1;
[0011] Figure 4 is an exploded, perspective view of another device for treating a bottom-hole formation of a wellbore; and
[0012] Figure 5 is an exploded, perspective view of still another device for treating a bottom-hole formation of a wellbore.
DESCRIPTIONS OF THE PREFERRED EMBODIMENTS
[0013] Referring to the drawings and first to Figure 1, there is shown a device 10 for treating a bottom-hole formation 12 of a wellbore 14. The device 10 is lowered into the wellbore 14 by a wireline 16 in this example. However, in other examples, coiled tubing or other suitable means may be employed to lower the device 10 into the wellbore 14. The wellbore 14 is cased with a perforated casing 18. Gas generated by the device 10 to treat the bottom -hole formation 12 of the wellbore 14 flows through perforations in the perforated casing 18, for example, perforations 20a and 20b of the perforated casing 18, into corresponding perforations in the bottom-hole formation 12, for example, perforations 22a and 22b of the bottom-hole formation 12, as indicated generally by arrows 24a and 24b. It will be understood by a person skilled in the art that the device 10 may also be employed to treat a wellbore provided with a slotted liner or an open hole wellbore. It will also be understood by a person skilled in the art that the device 10 may be deployed in a vertical wellbore or horizontal wellbore. It will further be understood by a person skilled in the art that the device may be deployed in a producing wellbore or an injection wellbore.
[0014] The device 10 is shown in greater detail in Figure 2. The device 10 comprises a firing head and sealing block assembly 30 at a proximal end thereof and a bullnose assembly 32 at a distal end thereof. A proximal end of a spacer tube 34 is coupled to the firing head and sealing block assembly 30. A carrier tube 36 is coupled to a distal end of the spacer tube 34. A dispersion tube 38 is coupled to a distal end of the carrier tube 36. A distal end of the dispersion tube is coupled to the bullnose assembly 32. There is a plurality of openings in the dispersion tube 38 which, in this example, are in the form of slots 40a and 40b.
[0015] The carrier tube 36 contains a combustible chemical composition which generates hydrochloric acid gas or hydrofluoric acid gas or a combination thereof when combusted. Figure 3 shows a combustible chemical composition 42 contained in the carrier tube 36. In this example, the combustible chemical composition 42 is contained in the carrier tube 36 and comprises a plurality of puck shaped members, for example, puck shaped member 44a and 44b which are fitted into the carrier tube 36. There may be epoxy lining an inner surface of carrier tube 36.
[0016] A charge wire 46 provides a charge to combust the combustible chemical composition 42 contained in the carrier tube 36. In this example, at least one of the puck shaped members is a combustion catalyst comprising epoxy resin, potassium dichromate, and ammonium nitrate. However, it will be understood by a person skilled in the art that a combustion catalyst is not required, but any suitable combustion catalyst may be employed. The hydrochloric acid gas or hydrofluoric acid gas or a combination thereof, generated when the combustible chemical composition 42 contained in the carrier tube 36 flows into the dispersion tube 38 through the slots 40a and 40b in the dispersion tube 38.
[0017] Examples of the combustible chemical compositions are set out below. Examples 1-3 and 5-7 generate hydrochloric acid gas and examples 4 and 8 generate hydrochloric acid gas and hydrofluoric acid gas.
Example 1
Component _ Percent by Weight
Hexachloroethane 30% to 60%
Ammonium nitrate 40% to 70%
Example 2
Component _ Percent by Weight
Chlorinated polyvinyl 30% to 60%
chloride
Ammonium nitrate 40% to 70%
Example 3
Component _ Percent by Weight
Chlorinated polyvinyl 0% to 5%
chloride
Hexachloroethane 25% to 55%
Ammonium nitrate 40% to 70% Example 4
Component Percent by Weight
Polytetrafluoroethylene 5% to 25%
Hexachloroethane 25% to 55%
Ammonium nitrate 40% to 70%
Example 5
Component Percent by Weight Hexachloroethane 30% to 60% Ammonium nitrate 40% to 70% Potassium Dichromate 2% and 12%.
Example 6
Component_ Percent by Weight
Chlorinated polyvinyl 30% to 60% chloride
Ammonium nitrate 40% to 70%
Potassium Dichromate 2% and 12%.
Example 7
Component Percent by Weight
Chlorinated polyvinyl 0% to 5% chloride
Hexachloroethane 25% to 55% Ammonium nitrate 40% to 70%
Potassium Dichromate 2% and 12%. Example 8
Component _ Percent by Weight
Polytetrafluoroethylene 5% to 25%
Hexachloroethane 25% to 55%
Ammonium nitrate 40% to 70%
Potassium Dichromate 2% and 12%.
[0018] It will be understood by a person skilled in the art that the device 10 may also be employed to treat a wellbore provided with a slotted liner or an open hole wellbore. It will also be understood by a person skilled in the art that the device 10 may be deployed in a vertical wellbore or horizontal wellbore. It will further be understood by a person skilled in the art that the device may be deployed in a producing wellbore or an injection wellbore. A perforating gun may be used with the device 10. Packers may also be employed to isolate the devices. [0019] Figure 4 shows another device 50 for treating a bottom -hole formation of a wellbore. The device 50 is substantially similar to the device shown in Figures 1 to 3 with the notable exception that the dispersion tube 52 has lateral openings in the form of apertures 54a and 54b. Figure 5 shows still another device 60 for treating a bottom-hole formation of a wellbore. The device 60 is substantially similar to the device shown in Figures 1 to 3 with the notable exception that there is no dispersion tube and the carrier tube 62 has lateral openings in the form of apertures 64a and 64b.
[0020] It will be understood by a person skilled in the art that many of the details provided above are by way of example only, and are not intended to limit the scope of the invention which is to be determined with reference to the following claims.

Claims

What is claimed is:
1. A device for treating a bottom-hole formation of a wellbore, the device comprising: a firing head and seal block assembly at a proximal end thereof; a bullnose assembly at a distal end thereof; a carrier tube extending from the firing head and seal block assembly the carrier tube containing a combustible chemical composition which generates hydrochloric acid gas or hydrofluoric acid gas or a combination thereof when combusted; a dispersion tube extending from the carrier tube, the dispersion tube having a lateral opening; and a charge wire electrically coupling the firing head and sealing block assembly to the combustible chemical composition.
2. The device as claimed in claim 1 wherein the lateral opening in the dispersion tube is a slot.
3. The device as claimed in claim 1 wherein the lateral opening in the dispersion tube is an aperture.
4. The device as claimed in any one of claims 1 to 3 wherein the combustible chemical composition comprises between 30% and 60% by weight hexachloroethane and between 40% and 70% by weight ammonium nitrate.
5. The device as claimed in any one of claims 1 to 3 wherein the combustible chemical composition comprises between 30% and 60% by weight polyvinyl chloride and between 40% and 70% by weight ammonium nitrate.
6. The device as claimed in any one of claims 1 to 3 wherein the combustible chemical composition comprises between 0% and 5% by weight polyvinyl chloride, between 25% and 55% by weight hexachloroethane, and between 40% and 70% by weight ammonium nitrate.
7. The device as claimed in any one of claims 1 to 3 wherein the combustible chemical composition comprises between 5% and 25% by weight polytetrafluoroethylene, between 25% and 55% by weight hexachloroethane, and between 40% and 70% by weight ammonium nitrate.
8. The device as claimed in any one of claims 1 to 3 wherein the combustible chemical composition further comprises between 2% and 12% by weight potassium dichromate.
9. The device as claimed in any one of claims 1 to 3 wherein the combustible chemical composition includes a plurality of puck shaped members.
10. The device as claimed in claim 9 wherein the combustible chemical composition further includes an adhesive binding adjacent ones of the puck shaped members.
11. The device as claimed in claim 9 wherein the combustible chemical composition further includes a combustion catalyst.
PCT/CA2019/050970 2019-07-12 2019-07-12 A device for treating a bottom-hole formation wellbore WO2021007645A1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
CA3143625A CA3143625A1 (en) 2019-07-12 2019-07-12 A device for treating a bottom-hole formation wellbore
US17/597,594 US20220259945A1 (en) 2019-07-12 2019-07-12 Device for treating a bottom-hole formation wellbore
EP19937754.0A EP3997305A4 (en) 2019-07-12 2019-07-12 A device for treating a bottom-hole formation wellbore
AU2019457059A AU2019457059A1 (en) 2019-07-12 2019-07-12 A device for treating a bottom-hole formation wellbore
PCT/CA2019/050970 WO2021007645A1 (en) 2019-07-12 2019-07-12 A device for treating a bottom-hole formation wellbore
IL289755A IL289755A (en) 2019-07-12 2019-07-12 A device for treating a bottom-hole formation wellbore
BR112022000567A BR112022000567A2 (en) 2019-07-12 2019-07-12 Device for treating a downhole formation from a wellbore
PE2022000058A PE20221246A1 (en) 2019-07-12 2019-07-12 A DEVICE FOR TREATING A BOTTOM FORMATION OF A WELL ENCLOSURE
ECSENADI20222883A ECSP22002883A (en) 2019-07-12 2022-01-12 A DEVICE FOR TREATING A BOTTOM FORMATION OF A WELL ENCLOSURE
CONC2022/0001421A CO2022001421A2 (en) 2019-07-12 2022-02-11 A device for treating a bottom formation of a well enclosure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CA2019/050970 WO2021007645A1 (en) 2019-07-12 2019-07-12 A device for treating a bottom-hole formation wellbore

Publications (1)

Publication Number Publication Date
WO2021007645A1 true WO2021007645A1 (en) 2021-01-21

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ID=74209645

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Application Number Title Priority Date Filing Date
PCT/CA2019/050970 WO2021007645A1 (en) 2019-07-12 2019-07-12 A device for treating a bottom-hole formation wellbore

Country Status (10)

Country Link
US (1) US20220259945A1 (en)
EP (1) EP3997305A4 (en)
AU (1) AU2019457059A1 (en)
BR (1) BR112022000567A2 (en)
CA (1) CA3143625A1 (en)
CO (1) CO2022001421A2 (en)
EC (1) ECSP22002883A (en)
IL (1) IL289755A (en)
PE (1) PE20221246A1 (en)
WO (1) WO2021007645A1 (en)

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WO2024012718A2 (en) 2022-07-14 2024-01-18 ISOL8 (Holdings) Limited Plug barrier material

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US20110315387A1 (en) * 2010-06-25 2011-12-29 Marat Shatikovich Gamerov System and method for cleaning a bottom-hole formation zone of a wellbore
CA2716975A1 (en) * 2010-09-17 2012-03-17 Lamrock Canada Incorporated A device for treating a bottom-hole formation zone of a wellbore
US20120199351A1 (en) 2008-03-26 2012-08-09 Robertson Michael C Method for removing a consumable downhole tool
RU2487237C1 (en) * 2012-03-20 2013-07-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Казанский государственный энергетический университет" (ФГБОУ ВПО "КГЭУ") Device for treatment of bottomhole formation zone of a well and method for treatment of bottomhole formation zone of well
WO2019153093A1 (en) * 2018-02-09 2019-08-15 Lamrock Canada Incorporated A device for treating a bottom-hole formation wellbore

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RU2329374C2 (en) * 2006-05-22 2008-07-20 Казанский государственный энергетический университет (КГЭУ) Facility for near-wellbore treatment and method for near-wellbore treatment
US20120199351A1 (en) 2008-03-26 2012-08-09 Robertson Michael C Method for removing a consumable downhole tool
US20110315387A1 (en) * 2010-06-25 2011-12-29 Marat Shatikovich Gamerov System and method for cleaning a bottom-hole formation zone of a wellbore
CA2716975A1 (en) * 2010-09-17 2012-03-17 Lamrock Canada Incorporated A device for treating a bottom-hole formation zone of a wellbore
CA2716975C (en) 2010-09-17 2018-05-01 Lamrock Canada Incorporated A device for treating a bottom-hole formation zone of a wellbore
RU2487237C1 (en) * 2012-03-20 2013-07-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Казанский государственный энергетический университет" (ФГБОУ ВПО "КГЭУ") Device for treatment of bottomhole formation zone of a well and method for treatment of bottomhole formation zone of well
WO2019153093A1 (en) * 2018-02-09 2019-08-15 Lamrock Canada Incorporated A device for treating a bottom-hole formation wellbore

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Title
See also references of EP3997305A4

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024012718A2 (en) 2022-07-14 2024-01-18 ISOL8 (Holdings) Limited Plug barrier material

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US20220259945A1 (en) 2022-08-18
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