NO303244B1 - FremgangsmÕte for rensking av r÷rledninger og innretning for gjennomf÷ring derav - Google Patents

FremgangsmÕte for rensking av r÷rledninger og innretning for gjennomf÷ring derav Download PDF

Info

Publication number: NO303244B1
Authority: NO; Norway
Prior art keywords: pipeline; heating element; fluid; carrying; side opening
Prior art date: 1990-08-28

Application number

NO913317A

Other languages

English (en)

Norwegian (no)

Other versions

NO913317D0 (no

NO913317L (no

Inventor

Carlos Alberto De Castro Goncalves

Original Assignee

Petroleo Brasileiro Sa

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.)

1990-08-28

Filing date

1991-08-23

Publication date

1998-06-15

1991-08-23 Application filed by Petroleo Brasileiro Sa filed Critical Petroleo Brasileiro Sa

1991-08-23 Publication of NO913317D0 publication Critical patent/NO913317D0/no

1992-03-02 Publication of NO913317L publication Critical patent/NO913317L/no

1998-06-15 Publication of NO303244B1 publication Critical patent/NO303244B1/no

Links

238000000034 method Methods 0.000 title claims description 20
238000004140 cleaning Methods 0.000 title claims description 5
238000010438 heat treatment Methods 0.000 claims description 56
239000012530 fluid Substances 0.000 claims description 36
239000004020 conductor Substances 0.000 claims description 20
239000011248 coating agent Substances 0.000 claims description 9
238000000576 coating method Methods 0.000 claims description 9
230000008878 coupling Effects 0.000 claims description 8
238000010168 coupling process Methods 0.000 claims description 8
238000005859 coupling reaction Methods 0.000 claims description 8
230000005294 ferromagnetic effect Effects 0.000 claims description 4
238000003780 insertion Methods 0.000 claims description 4
230000037431 insertion Effects 0.000 claims description 4
239000003302 ferromagnetic material Substances 0.000 claims description 3
238000007789 sealing Methods 0.000 claims description 3
230000007704 transition Effects 0.000 claims description 3
230000001939 inductive effect Effects 0.000 claims description 2
230000000704 physical effect Effects 0.000 claims description 2
239000002023 wood Substances 0.000 claims 1
238000004519 manufacturing process Methods 0.000 description 17
230000035515 penetration Effects 0.000 description 6
239000000126 substance Substances 0.000 description 6
239000003208 petroleum Substances 0.000 description 5
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
238000004804 winding Methods 0.000 description 5
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
230000000694 effects Effects 0.000 description 4
239000000463 material Substances 0.000 description 4
230000008569 process Effects 0.000 description 4
239000002904 solvent Substances 0.000 description 4
229910000831 Steel Inorganic materials 0.000 description 3
230000008901 benefit Effects 0.000 description 3
230000015572 biosynthetic process Effects 0.000 description 3
230000002500 effect on skin Effects 0.000 description 3
238000002347 injection Methods 0.000 description 3
239000007924 injection Substances 0.000 description 3
238000009434 installation Methods 0.000 description 3
239000012188 paraffin wax Substances 0.000 description 3
239000010959 steel Substances 0.000 description 3
238000010276 construction Methods 0.000 description 2
238000013461 design Methods 0.000 description 2
239000000806 elastomer Substances 0.000 description 2
229920001971 elastomer Polymers 0.000 description 2
229910052742 iron Inorganic materials 0.000 description 2
230000005291 magnetic effect Effects 0.000 description 2
239000003921 oil Substances 0.000 description 2
238000012546 transfer Methods 0.000 description 2
239000004809 Teflon Substances 0.000 description 1
229920006362 Teflon® Polymers 0.000 description 1
230000035508 accumulation Effects 0.000 description 1
238000009825 accumulation Methods 0.000 description 1
239000000956 alloy Substances 0.000 description 1
229910045601 alloy Inorganic materials 0.000 description 1
239000000919 ceramic Substances 0.000 description 1
229910010293 ceramic material Inorganic materials 0.000 description 1
230000008859 change Effects 0.000 description 1
239000010779 crude oil Substances 0.000 description 1
238000000151 deposition Methods 0.000 description 1
238000006073 displacement reaction Methods 0.000 description 1
238000009826 distribution Methods 0.000 description 1
238000010291 electrical method Methods 0.000 description 1
239000003673 groundwater Substances 0.000 description 1
230000020169 heat generation Effects 0.000 description 1
239000011810 insulating material Substances 0.000 description 1
239000012212 insulator Substances 0.000 description 1
238000009533 lab test Methods 0.000 description 1
230000008018 melting Effects 0.000 description 1
238000002844 melting Methods 0.000 description 1
239000003129 oil well Substances 0.000 description 1
230000000149 penetrating effect Effects 0.000 description 1
230000035699 permeability Effects 0.000 description 1
229920002647 polyamide Polymers 0.000 description 1
230000003134 recirculating effect Effects 0.000 description 1
238000011084 recovery Methods 0.000 description 1
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230000002787 reinforcement Effects 0.000 description 1
239000011347 resin Substances 0.000 description 1
229920005989 resin Polymers 0.000 description 1
RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
235000012239 silicon dioxide Nutrition 0.000 description 1
238000007711 solidification Methods 0.000 description 1
230000008023 solidification Effects 0.000 description 1
239000001993 wax Substances 0.000 description 1

Classifications

- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/54—Heating elements having the shape of rods or tubes flexible
- H05B3/56—Heating cables
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
- E21B17/203—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables with plural fluid passages
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
- E21B17/206—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables with conductors, e.g. electrical, optical
- 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
- E21B36/04—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using electrical heaters
- 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
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
- F16L53/34—Heating of pipes or pipe systems using electric, magnetic or electromagnetic fields, e.g. using induction, dielectric or microwave heating
- 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
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
- F16L53/35—Ohmic-resistance heating
- F16L53/38—Ohmic-resistance heating using elongate electric heating elements, e.g. wires or ribbons
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2214/00—Aspects relating to resistive heating, induction heating and heating using microwaves, covered by groups H05B3/00, H05B6/00
- H05B2214/03—Heating of hydrocarbons

Landscapes

Engineering & Computer Science (AREA)
Mining & Mineral Resources (AREA)
Life Sciences & Earth Sciences (AREA)
Geology (AREA)
Mechanical Engineering (AREA)
Physics & Mathematics (AREA)
General Engineering & Computer Science (AREA)
General Life Sciences & Earth Sciences (AREA)
Fluid Mechanics (AREA)
Geochemistry & Mineralogy (AREA)
Environmental & Geological Engineering (AREA)
Electromagnetism (AREA)
Pipe Accessories (AREA)
Resistance Heating (AREA)
Cleaning In General (AREA)
Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Sewage (AREA)

NO913317A 1990-08-28 1991-08-23 FremgangsmÕte for rensking av r÷rledninger og innretning for gjennomf÷ring derav NO303244B1 (no)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
BR909004240A BR9004240A (pt)	1990-08-28	1990-08-28	Processo de aquecimento eletrico de tubulacoes

Publications (3)

Publication Number	Publication Date
NO913317D0 NO913317D0 (no)	1991-08-23
NO913317L NO913317L (no)	1992-03-02
NO303244B1 true NO303244B1 (no)	1998-06-15

Family

ID=4050182

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO913317A NO303244B1 (no)	1990-08-28	1991-08-23	FremgangsmÕte for rensking av r÷rledninger og innretning for gjennomf÷ring derav

Country Status (9)

Country	Link
US (1)	US5182792A (de)
EP (1)	EP0473369B1 (de)
JP (1)	JP2500238B2 (de)
BR (1)	BR9004240A (de)
CA (1)	CA2049907C (de)
DE (1)	DE69117395T2 (de)
MX (1)	MX9100813A (de)
NO (1)	NO303244B1 (de)
RU (1)	RU2037725C1 (de)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6049657A (en) *	1996-03-25	2000-04-11	Sumner; Glen R.	Marine pipeline heated with alternating current
US5859953A (en) *	1997-06-30	1999-01-12	Nickless; Eugene R.	Electric heating apparatus for deicing pipes utilizing flexible heated hose inserted into pipe
US6939082B1 (en) *	1999-09-20	2005-09-06	Benton F. Baugh	Subea pipeline blockage remediation method
US20030066642A1 (en) *	2000-04-24	2003-04-10	Wellington Scott Lee	In situ thermal processing of a coal formation producing a mixture with oxygenated hydrocarbons
US6715546B2 (en)	2000-04-24	2004-04-06	Shell Oil Company	In situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore
US6698515B2 (en)	2000-04-24	2004-03-02	Shell Oil Company	In situ thermal processing of a coal formation using a relatively slow heating rate
US6588504B2 (en)	2000-04-24	2003-07-08	Shell Oil Company	In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids
US7011154B2 (en) *	2000-04-24	2006-03-14	Shell Oil Company	In situ recovery from a kerogen and liquid hydrocarbon containing formation
US20030075318A1 (en) *	2000-04-24	2003-04-24	Keedy Charles Robert	In situ thermal processing of a coal formation using substantially parallel formed wellbores
US6715548B2 (en)	2000-04-24	2004-04-06	Shell Oil Company	In situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids
AU773413B2 (en)	2000-04-24	2004-05-27	Shell Internationale Research Maatschappij B.V.	A method for sequestering a fluid within a hydrocarbon containing formation
AU2002257221B2 (en) *	2001-04-24	2008-12-18	Shell Internationale Research Maatschappij B.V.	In situ recovery from a oil shale formation
US7165615B2 (en) *	2001-10-24	2007-01-23	Shell Oil Company	In situ recovery from a hydrocarbon containing formation using conductor-in-conduit heat sources with an electrically conductive material in the overburden
US7104319B2 (en) *	2001-10-24	2006-09-12	Shell Oil Company	In situ thermal processing of a heavy oil diatomite formation
NZ532089A (en) *	2001-10-24	2005-09-30	Shell Int Research	Installation and use of removable heaters in a hydrocarbon containing formation
EP1556580A1 (de)	2002-10-24	2005-07-27	Shell Internationale Researchmaatschappij B.V.	Temperatur begrenztes heizgerät zum heizen von unterirdischen bodenschichten oder bohrlöcher
NZ543753A (en)	2003-04-24	2008-11-28	Shell Int Research	Thermal processes for subsurface formations
CA2563592C (en)	2004-04-23	2013-10-08	Shell Internationale Research Maatschappij B.V.	Temperature limited heaters with thermally conductive fluid used to heat subsurface formations
US7575053B2 (en)	2005-04-22	2009-08-18	Shell Oil Company	Low temperature monitoring system for subsurface barriers
DE602006020314D1 (de) *	2005-10-24	2011-04-07	Shell Int Research	Verfahren zur filterung eines in einem in-situ-wärmebehandlungsprozess erzeugten flüssigkeitsstroms
EP2010751B1 (de)	2006-04-21	2018-12-12	Shell International Research Maatschappij B.V.	Temperaturbeschränkte heizer mit phasentransformation von ferromagnetischem material
US7540324B2 (en)	2006-10-20	2009-06-02	Shell Oil Company	Heating hydrocarbon containing formations in a checkerboard pattern staged process
WO2008131177A1 (en) *	2007-04-20	2008-10-30	Shell Oil Company	In situ heat treatment of a tar sands formation after drive process treatment
RU2465624C2 (ru)	2007-10-19	2012-10-27	Шелл Интернэшнл Рисерч Маатсхаппий Б.В.	Регулируемый трансформатор с переключаемыми ответвлениями
NO328383B1 (no) *	2008-02-15	2010-02-08	Nexans	Direkte elektrisk oppvarmingssystem med hoy virkningsgrad
CN102007266B (zh)	2008-04-18	2014-09-10	国际壳牌研究有限公司	用于处理地下含烃地层的***和方法
JP5611962B2 (ja)	2008-10-13	2014-10-22	シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー	地表下地層を処理するために使用される循環熱伝導流体システム
US8327932B2 (en)	2009-04-10	2012-12-11	Shell Oil Company	Recovering energy from a subsurface formation
US8701768B2 (en)	2010-04-09	2014-04-22	Shell Oil Company	Methods for treating hydrocarbon formations
US8833453B2 (en)	2010-04-09	2014-09-16	Shell Oil Company	Electrodes for electrical current flow heating of subsurface formations with tapered copper thickness
US9033042B2 (en)	2010-04-09	2015-05-19	Shell Oil Company	Forming bitumen barriers in subsurface hydrocarbon formations
US8631866B2 (en)	2010-04-09	2014-01-21	Shell Oil Company	Leak detection in circulated fluid systems for heating subsurface formations
US9016370B2 (en)	2011-04-08	2015-04-28	Shell Oil Company	Partial solution mining of hydrocarbon containing layers prior to in situ heat treatment
DE102011102148A1 (de)	2011-05-20	2012-11-22	Norma Germany Gmbh	Fluidleitung
DE102011102244B4 (de) *	2011-05-20	2014-12-31	Norma Germany Gmbh	Verbinder für eine beheizbare Fluidleitung und beheizbare Fluidleitung
DE102011102151B4 (de)	2011-05-20	2022-05-19	Norma Germany Gmbh	Fluidleitung
CN103958824B (zh)	2011-10-07	2016-10-26	国际壳牌研究有限公司	用于加热地下地层的循环流体***的热膨胀调节
AR084995A1 (es)	2011-12-01	2013-07-24	Pablo Javier Invierno	Cable calefactor de tuberias de extraccion de hidrocarburos para pozos expuestos a presiones elevadas y pozos con espacio anular inundado en forma eventual, permanente o combinada
CN104428489A (zh)	2012-01-23	2015-03-18	吉尼Ip公司	地下含烃地层的原位热处理的加热器模式
RS54053B1 (en) *	2012-09-10	2015-10-30	Norma Germany Gmbh	INJECTION CONNECTOR
FR2997162B1 (fr) *	2012-10-22	2015-01-16	Technip France	Procede d'assemblage d'une conduite rigide destinee a etre placee dans une etendue d'eau, installation et conduite associees
DE102014102357A1 (de) *	2014-02-24	2015-08-27	Norma Germany Gmbh	Beheizbare Fluidleitung
DE102014102353A1 (de) *	2014-02-24	2015-08-27	Norma Germany Gmbh	Beheizbare Fluidleitung und Verbinder für eine beheizbare Fluidleitung
RU2589553C1 (ru) *	2015-03-12	2016-07-10	Михаил Леонидович Струпинский	Нагревательный кабель на основе скин-эффекта, нагревательное устройство и способ нагрева
DE102015216513A1 (de) *	2015-08-28	2017-03-02	Volkswagen Aktiengesellschaft	Kühlsystem für eine Brennstoffzelle und Brennstoffzellensystem
US9982419B1 (en)	2016-09-21	2018-05-29	David Vernon Emerson	Apparatus and method for heating frozen pipes
RU2683028C1 (ru) *	2017-11-13	2019-03-26	Общество с ограниченной ответственностью Научно-инженерный центр "Энергодиагностика"	Способ электротермического воздействия на трубопроводы и индукционная нагревательная система для его реализации
EP3764737B1 (de) *	2019-07-11	2023-12-27	GammaSwiss SA	Frostschutz-heizkabelvorrichtung
CN111824791A (zh) *	2020-06-30	2020-10-27	广东东德科技股份有限公司	一种pc板材加热进料装置

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB527759A (en) *	1939-05-20	1940-10-15	James Smith Arthur Primrose	Improvements in or relating to hot water supply systems
GB545349A (en) *	1940-07-19	1942-05-20	British Thomson Houston Co Ltd	Improvements in and relating to electric immersion heaters
US2516950A (en) *	1948-05-18	1950-08-01	Willis C Bragg	Device for thawing frozen water pipes
DE1199070B (de) *	1964-01-18	1965-08-19	Eugen Kloepper Waermetechnik G	Elektrisch beheizte Rohrleitung grossen Durchmessers mit einem innerhalb der Rohrleitung verlegten Heizkabel
US3629551A (en) *	1968-10-29	1971-12-21	Chisso Corp	Controlling heat generation locally in a heat-generating pipe utilizing skin-effect current
US3678243A (en) *	1969-12-27	1972-07-18	Chisso Corp	Method for levelling the temperature of an electrically heated pipeline
JPS5247583B2 (de) *	1974-01-09	1977-12-03
US4002881A (en) *	1974-06-13	1977-01-11	Chevron Research Company	System for controlling electrical power in an internal wire impedance heating system
US4523644A (en) *	1978-08-14	1985-06-18	Dismukes Newton B	Thermal oil recovery method
GB2076618B (en) *	1980-05-23	1984-02-01	Daido Ind	Preheater for mounting in a well tube
US4423311A (en) *	1981-01-19	1983-12-27	Varney Sr Paul	Electric heating apparatus for de-icing pipes
US4538682A (en) *	1983-09-08	1985-09-03	Mcmanus James W	Method and apparatus for removing oil well paraffin
DE3414284A1 (de) *	1984-04-14	1985-10-31	Heraeus-Wittmann Gmbh, 6450 Hanau	Elektrisches heizelement fuer rohrleitungen, insbesondere fuer lange rohrleitungen
DE3532979A1 (de) *	1985-09-16	1987-04-16	Henkel Kgaa	Innenliegende begleitheizung fuer rohrleitungen
JPS62143892U (de) *	1986-03-07	1987-09-10
BR8602278A (pt) *	1986-05-20	1987-12-22	Petroleo Brasileiro Sa	Processo e disposicao para aquecimento de colunas de producao em pocos de petroleo
GB8730349D0 (en) *	1987-12-31	1988-02-03	Standard Hose Ltd	Hosepipe

1990
- 1990-08-28 BR BR909004240A patent/BR9004240A/pt not_active IP Right Cessation
1991
- 1991-08-22 DE DE69117395T patent/DE69117395T2/de not_active Expired - Fee Related
- 1991-08-22 EP EP91307758A patent/EP0473369B1/de not_active Expired - Lifetime
- 1991-08-23 NO NO913317A patent/NO303244B1/no unknown
- 1991-08-26 MX MX9100813A patent/MX9100813A/es not_active IP Right Cessation
- 1991-08-26 CA CA002049907A patent/CA2049907C/en not_active Expired - Fee Related
- 1991-08-27 RU SU915001465A patent/RU2037725C1/ru active
- 1991-08-28 JP JP3217222A patent/JP2500238B2/ja not_active Expired - Lifetime
- 1991-08-28 US US07/750,995 patent/US5182792A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
JP2500238B2 (ja)	1996-05-29
US5182792A (en)	1993-01-26
EP0473369B1 (de)	1996-02-28
EP0473369A1 (de)	1992-03-04
DE69117395D1 (de)	1996-04-04
RU2037725C1 (ru)	1995-06-19
NO913317D0 (no)	1991-08-23
CA2049907C (en)	1994-10-25
MX9100813A (es)	1992-04-01
BR9004240A (pt)	1992-03-24
JPH0579593A (ja)	1993-03-30
DE69117395T2 (de)	1996-09-05
NO913317L (no)	1992-03-02
CA2049907A1 (en)	1992-03-01

Publication	Publication Date	Title
NO303244B1 (no)	1998-06-15	FremgangsmÕte for rensking av r÷rledninger og innretning for gjennomf÷ring derav
DE69923247T2 (de)	2006-01-12	Elektrisches Bohrlochheizgerät
CA2171023C (en)	1996-12-31	Downhole heating system with separate wiring, cooling and heating chambers, and gas flow therethrough
US4716960A (en)	1988-01-05	Method and system for introducing electric current into a well
US6142707A (en)	2000-11-07	Direct electric pipeline heating
US6360819B1 (en)	2002-03-26	Electrical heater
US6955221B2 (en)	2005-10-18	Active heating of thermally insulated flowlines
EP0484948B1 (de)	1997-02-12	Robustes, elektrisches Heizsystem für Mineralölbohrungen
RU2090016C1 (ru)	1997-09-10	Электрическая нагревательная система
US4572299A (en)	1986-02-25	Heater cable installation
US5623576A (en)	1997-04-22	Downhole radial flow steam generator for oil wells
MX2007007233A (es)	2007-08-31	Herramienta de produccion electromagnetica selectiva.
US6179523B1 (en)	2001-01-30	Method for pipeline installation
US20180339324A1 (en)	2018-11-29	Electromagnetic induction heater
US11441719B2 (en)	2022-09-13	Method and device for induction heating of an inner pipe of an assembly of coaxial pipes
US20220112975A1 (en)	2022-04-14	Subsea Flowline Blockage Remediation Using External Heating Device
US457457A (en)	1891-08-11	Electric oil-well heater
RU2392424C2 (ru)	2010-06-20	Способ резистивного нагрева подземной зоны (варианты) и устройство для нагрева коллектора
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