MX367585B - Sistemas y método para el sellado de tuberías utilizando un raspador de gel. - Google Patents

Sistemas y método para el sellado de tuberías utilizando un raspador de gel.

Info

Publication number
MX367585B
MX367585B MX2017007992A MX2017007992A MX367585B MX 367585 B MX367585 B MX 367585B MX 2017007992 A MX2017007992 A MX 2017007992A MX 2017007992 A MX2017007992 A MX 2017007992A MX 367585 B MX367585 B MX 367585B
Authority
MX
Mexico
Prior art keywords
systems
gel pig
pig
leakage
gel
Prior art date
Application number
MX2017007992A
Other languages
English (en)
Other versions
MX2017007992A (es
Inventor
Natapov Boris
Ukhanov Reonald
Perstnev Samuel
Perstnev Alexander
Paz Peter
Original Assignee
Curapipe System Ltd
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 Curapipe System Ltd filed Critical Curapipe System Ltd
Publication of MX2017007992A publication Critical patent/MX2017007992A/es
Publication of MX367585B publication Critical patent/MX367585B/es

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/1645—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/01—Hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/12—Materials for stopping leaks, e.g. in radiators, in tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/1003—Means for stopping flow from or in pipes or hoses by introduction of paste, powder, particles, or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/11—Plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
    • F16L55/128—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/1612—Devices for covering leaks in pipes or hoses, e.g. hose-menders by means of a plug
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/164—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing fluid being introduced in the pipe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/1645—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe
    • F16L55/16455—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe a part of the tool defining, together with the inner wall of the pipe, an enclosed space into which sealing material is injected
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/18—Appliances for use in repairing pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/28—Constructional aspects
    • F16L55/30—Constructional aspects of the propulsion means, e.g. towed by cables
    • F16L55/38—Constructional aspects of the propulsion means, e.g. towed by cables driven by fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/28—Constructional aspects
    • F16L55/40—Constructional aspects of the body
    • F16L55/42—Constructional aspects of the body gelled or degradable
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Materials Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Sealing Material Composition (AREA)
  • Pipe Accessories (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

La presente invención proporciona sistemas y métodos para curar una fuga en una tubería, el sistema incluye al menos un raspador de gel y por lo menos una composición de sellador; en donde el al menos un raspador de gel y la composición de sellador forman un tren de raspador, adaptado para moverse a lo largo de la tubería hacia una región de la fuga y para sellar la fuga.
MX2017007992A 2014-12-18 2015-12-16 Sistemas y método para el sellado de tuberías utilizando un raspador de gel. MX367585B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201462093862P 2014-12-18 2014-12-18
PCT/IL2015/000051 WO2016098093A1 (en) 2014-12-18 2015-12-16 Systems and method for sealing pipelines using a gel pig

Publications (2)

Publication Number Publication Date
MX2017007992A MX2017007992A (es) 2018-11-09
MX367585B true MX367585B (es) 2019-08-27

Family

ID=56126050

Family Applications (2)

Application Number Title Priority Date Filing Date
MX2017007992A MX367585B (es) 2014-12-18 2015-12-16 Sistemas y método para el sellado de tuberías utilizando un raspador de gel.
MX2017007991A MX367586B (es) 2014-12-18 2015-12-16 Método para el sellado de tuberías utilizando un raspador de gel.

Family Applications After (1)

Application Number Title Priority Date Filing Date
MX2017007991A MX367586B (es) 2014-12-18 2015-12-16 Método para el sellado de tuberías utilizando un raspador de gel.

Country Status (10)

Country Link
US (2) US10302235B2 (es)
EP (2) EP3234436B1 (es)
CN (2) CN107614956B (es)
BR (2) BR112017013006A2 (es)
CO (2) CO2017007193A2 (es)
IL (2) IL252785B (es)
MX (2) MX367585B (es)
RU (2) RU2697911C2 (es)
WO (2) WO2016098094A1 (es)
ZA (1) ZA201704842B (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR102018013965B1 (pt) * 2018-07-09 2022-03-29 Petróleo Brasileiro S.A. - Petrobras Dispositivo e método para reparo de mangueira de umbilicais
MX2021011968A (es) 2019-04-02 2022-01-18 Curapipe System Ltd Sistemas y metodos para sellar tuberias.
US20220178489A1 (en) * 2019-04-02 2022-06-09 Curapipe System Ltd. Methods and systems for sealing a service pipe
EP3747559A1 (en) * 2019-06-07 2020-12-09 BAE SYSTEMS plc Flowable slush of frozen particles for ice pigging
US20220241826A1 (en) * 2019-06-07 2022-08-04 Bae Systems Plc Flowable slush of frozen particles for ice pigging
GB2584653B (en) * 2019-06-07 2023-04-19 Bae Systems Plc Improvements in and relating to ice pigging
GB201910862D0 (en) 2019-07-30 2019-09-11 Hydrosave Uk Ltd Adaptor device for liquid supply
CN110408059A (zh) * 2019-08-05 2019-11-05 海洋石油工程股份有限公司 海底管道隔离封堵清管用材料及其制备方法
GB2589157B (en) * 2020-04-03 2022-05-25 Origin Tech Ltd A method of inhibiting leakage of a fluid through a defect in a wall of a pipe
CN112981569B (zh) * 2021-02-03 2022-04-12 新疆金大禹环境科技有限公司 一种化纤生产加工用导流全包式上油辊
WO2022175941A1 (en) * 2021-02-18 2022-08-25 Curapipe System Ltd Launcher system, apparatus and method for launching gel pig trains

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3523826A (en) 1967-07-17 1970-08-11 Petrolite Corp Process of cleaning piping systems
US4003393A (en) * 1973-02-14 1977-01-18 The Dow Chemical Company Gel-like composition for use as a pig in a pipeline
US4379722A (en) 1978-08-09 1983-04-12 Shell Oil Company Pipeline gel plug
US4383783A (en) * 1978-09-18 1983-05-17 Shell Oil Company Pipeline gel plug
US4216026A (en) 1979-02-05 1980-08-05 Shell Oil Company System for removing fluid and debris from pipelines
US4252465A (en) 1979-02-13 1981-02-24 Shell Oil Company Pipeline gel plug
US4543131A (en) * 1979-11-20 1985-09-24 The Dow Chemical Company Aqueous crosslinked gelled pigs for cleaning pipelines
US4254559A (en) * 1980-02-19 1981-03-10 The Dow Chemical Company Method for drying pipelines
US4321968A (en) 1980-05-22 1982-03-30 Phillips Petroleum Company Methods of using aqueous gels
US4416703A (en) * 1981-11-20 1983-11-22 Shell Oil Company System for removing debris from pipelines
US4582091A (en) * 1982-02-02 1986-04-15 The British Petroleum Company P.L.C. Leak sealing method
US5122549A (en) * 1989-03-10 1992-06-16 Halliburton Company Crosslinkable cellulose derivatives
US5067565A (en) * 1989-03-10 1991-11-26 Halliburton Company Crosslinkable cellulose derivatives
EP0401936B1 (en) * 1989-06-06 1994-10-05 Sofitech N.V. Method and means for the temporary plugging of pipelines
US5215781A (en) * 1991-04-10 1993-06-01 Atlantic Richfield Company Method for treating tubulars with a gelatin pig
GB9301767D0 (en) * 1993-01-29 1993-03-17 Amec Utilities Ltd A method of lining pipe
US5358043A (en) * 1993-03-22 1994-10-25 Phillips Petroleum Company Gelling compositions useful for oil field applications
US5346339A (en) * 1993-06-16 1994-09-13 Halliburton Company Pipeline cleaning process
CA2395928A1 (en) 1999-12-29 2001-07-12 Shell Canada Limited Process for altering the relative permeability of a hydrocarbon-bearing formation
US8273693B2 (en) * 2001-12-12 2012-09-25 Clearwater International Llc Polymeric gel system and methods for making and using same in hydrocarbon recovery
CA2524459A1 (en) * 2003-05-02 2004-11-18 Tdw Delaware, Inc. Apparatus, systems and methods for plugging a high temperature pipe
RU2343999C2 (ru) * 2004-06-18 2009-01-20 Пластокор, Инк. Система и способ покрытия труб
US7795185B2 (en) * 2006-07-27 2010-09-14 Halliburton Energy Services, Inc. Magnesium peroxide difunctional components for cellulose derivatives and associated methods
US7748456B2 (en) * 2006-08-11 2010-07-06 Halliburton Energy Services, Inc. Dual functional components and associated methods
US8008236B2 (en) * 2006-10-27 2011-08-30 Halliburton Energy Services, Inc. Ortho ester breakers for viscoelastic surfactant gels and associated methods
IL180474A (en) * 2007-01-01 2013-12-31 Curapipe Ltd A process and structure for blocking "in place" of pipeline leaks
US20080217012A1 (en) * 2007-03-08 2008-09-11 Bj Services Company Gelled emulsions and methods of using the same
US20080277112A1 (en) 2007-05-10 2008-11-13 Halliburton Energy Services, Inc. Methods for stimulating oil or gas production using a viscosified aqueous fluid with a chelating agent to remove calcium carbonate and similar materials from the matrix of a formation or a proppant pack
US8065905B2 (en) * 2007-06-22 2011-11-29 Clearwater International, Llc Composition and method for pipeline conditioning and freezing point suppression
GB0906541D0 (en) * 2009-04-16 2009-05-20 Brinker Technology Ltd Delivery method and compositions

Also Published As

Publication number Publication date
US20180003330A1 (en) 2018-01-04
RU2017123876A (ru) 2019-01-18
CO2017007193A2 (es) 2017-10-10
BR112017013023A2 (pt) 2018-02-27
EP3234436B1 (en) 2021-11-03
RU2017123876A3 (es) 2019-06-18
EP3234437B1 (en) 2021-11-03
IL252785A0 (en) 2017-08-31
ZA201704842B (en) 2019-06-26
IL252784A0 (en) 2017-08-31
EP3234436A1 (en) 2017-10-25
EP3234437A4 (en) 2018-12-05
CO2017007190A2 (es) 2017-10-10
BR112017013006A2 (pt) 2018-03-06
CN107614957B (zh) 2020-11-13
WO2016098093A1 (en) 2016-06-23
US20170363245A1 (en) 2017-12-21
CN107614956B (zh) 2020-11-13
CN107614956A (zh) 2018-01-19
MX367586B (es) 2019-08-27
EP3234436A4 (en) 2018-12-05
IL252785B (en) 2022-09-01
US10302235B2 (en) 2019-05-28
RU2017123877A (ru) 2019-01-18
RU2697911C2 (ru) 2019-08-21
RU2017123877A3 (es) 2019-06-10
US10302236B2 (en) 2019-05-28
WO2016098094A1 (en) 2016-06-23
RU2697595C2 (ru) 2019-08-15
MX2017007992A (es) 2018-11-09
IL252784B (en) 2022-03-01
CN107614957A (zh) 2018-01-19
MX2017007991A (es) 2018-11-09
EP3234437A1 (en) 2017-10-25

Similar Documents

Publication Publication Date Title
MX367585B (es) Sistemas y método para el sellado de tuberías utilizando un raspador de gel.
EP3254009B8 (en) Sealing arrangements for subsea pipe-in-pipe systems
GB2524172B (en) System, method and tooling for flexible assembly of cylinder-head valve trains
EP3122471A4 (en) Methods for detection, marking and sealing leaks in pipes or ducts
EP3645824A4 (en) METHODS, SYSTEMS AND DEVICES FOR SEALING LEAKED TOOL LEAKS
GB2565643A (en) Elastomeric gasket for fluid interface to a microfluidic chip
EP3734128C0 (en) PIPE JOINT SEAL FOR POLYMER PIPES
GB2539324B (en) System and method for the prediction of leakage in a pipeline
EP3507534A4 (en) SYSTEM AND PROCESS FOR WATERPROOFING OF FLOW LINES USING A METAL GASKET AFTER PUNCHING
GB201513577D0 (en) Pipe sealing apparatus & method
BR112017013032A2 (pt) método para vedação de tubulação usando um pig de gel
EP3467219A4 (en) JOINING SYSTEM FOR JOINTING EXPANSION JOINTS AND METHOD OF SETTING SAID SYSTEM
MX2017003051A (es) Composiciones de granulo, kits y metodo de sellado de fugas.
MX2021011968A (es) Sistemas y metodos para sellar tuberias.
GB2586326B (en) Systems and methods for seal retention
GB2545129A (en) Improved valve apparatus and method of installation
GB201507270D0 (en) Toroidal seal and method for the sealing of pipes
EP3696410A4 (en) SEAL GAS SUPPLY SYSTEM AND SEAL GAS SUPPLY METHOD
AU2017900215A0 (en) Seal Apparatus, Sealing System and Associated Methods
EP3812639C0 (de) Innenabdichtungssystem für rohrleitungen
AU2014901196A0 (en) Seal Apparatus, Sealing System and Associated Methods
GB201409769D0 (en) Pipe Sealing System, Apparatus and method

Legal Events

Date Code Title Description
FG Grant or registration