WO1995011198A1 - Appareil destine au traitement magnetique de liquides en ecoulement - Google Patents

Appareil destine au traitement magnetique de liquides en ecoulement Download PDF

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Publication number
WO1995011198A1
WO1995011198A1 PCT/US1994/012014 US9412014W WO9511198A1 WO 1995011198 A1 WO1995011198 A1 WO 1995011198A1 US 9412014 W US9412014 W US 9412014W WO 9511198 A1 WO9511198 A1 WO 9511198A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
cylindrical portion
magnets
edges
spacers
Prior art date
Application number
PCT/US1994/012014
Other languages
English (en)
Inventor
Roland K. Carpenter
Original Assignee
Carpenter Roland K
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 Carpenter Roland K filed Critical Carpenter Roland K
Priority to US08/605,193 priority Critical patent/US5700376A/en
Priority to EP94931419A priority patent/EP0724545A1/fr
Priority to BR9407881A priority patent/BR9407881A/pt
Priority to AU80509/94A priority patent/AU8050994A/en
Publication of WO1995011198A1 publication Critical patent/WO1995011198A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
    • C02F1/481—Treatment of water, waste water, or sewage with magnetic or electric fields using permanent magnets
    • C02F1/482—Treatment of water, waste water, or sewage with magnetic or electric fields using permanent magnets located on the outer wall of the treatment device, i.e. not in contact with the liquid to be treated, e.g. detachable
    • 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

Definitions

  • This invention relates generally to apparatus for magnetically treating a liquid flowing through a pipe, and pertains more particularly to unpotted apparatus that can be readily held in place against the exterior of the tubing string installed in an oil well casing pipe.
  • tubing string is removed from the oil well at great expense and cleaned out after its removal from the oil well. Attempts to treat the flow through the tubing string to prevent incrustation have not proven successful.
  • the spacing between the tubing string and the oil well casing pipe is very restrictive and does not allow use of magnetic units which are conventionally utilized for exposed pipes.
  • the tubing string is typically formed of Schedule 80 carbon steel and is tested for 3,000 psi (210 kg/sq. cm) and 175,000 pounds (65,000 kg) of tensile strength, and therefore transmission of magnetic flux through the tubing string is relatively difficult.
  • first and second, radially separable portions of a magnetic apparatus are clamped on a pipe and then secured together with sufficient force to secure the magnetic apparatus to the pipe generally by frictional forces between the magnetic apparatus and the pipe and without attachment of the magnetic apparatus to the pipe.
  • the pipe with the magnetic apparatus so secured thereon is inserted within a casing pipe of a diametric size larger than the pipe and the magnetic apparatus secured thereon.
  • Figure 1 shows an elevational view of a magnetic apparatus secured to a pup joint pipe of a well pipe tubing string installed in an oil well casing pipe according to the preferred teachings of the present invention, with portions exploded therefrom.
  • Figure 2 shows a horizontal sectional view of the apparatus of Figure 1 according to section line 2-2 of Figure 1.
  • Figure 3 shows a vertical sectional view of the apparatus ' of Figure 1 according to section line 3-3 of Figure 2.
  • Pipe 10 may be formed of carbon steel and specifically in the most preferred form is a pup joint certified by the American Petroleum Institute for installation in an oil well casing pipe 12, pipe 10 having been hatched for metal. Also, pipe 10, in practice, may vary considerably in diameter depending upon the diameter of casing pipe 12. The manner in which various pipe diameters are accommodated will become clear as the description progresses.
  • Apparatus 14 includes' a housing 16 including a cylindrical portion 18 and first and second frustoconical portions 20 located on opposite axial sides of and partially closing cylindrical portion 18.
  • cylindrical portion 18 has inside and outside surfaces having circular cross sections of diameters slightly larger than the diameter of the circular cross section of the outer surface of pipe 10.
  • the inside surface of portion 18 has a diameter in the order of 1 inch (2.54 cm) larger than the outer surface of pipe 10.
  • Portion 18 has an elongated length in the order of 7-9 inches (18-23 cm).
  • Portions 20 each includes a major base having inside and outside surfaces having circular cross sections of diameters equal to and interconnected to the diameters of the inside and outside surfaces of an axial end of portion 18. Portions 20 each include a minor base having an inside surface having a circular cross section of a diameter generally equal and corresponding to the outer surface of pipe 10.
  • housing 16 is divided into first and second longitudinal portions 16a and 16b which are radially separable from each other and pipe 10, with portions 16a and 16b being halves in the most preferred form which are mirror images of each other and preferably are of identical construction.
  • Housing 16 further includes a plurality of parallel spacers 22 for holding cylindrical portion 18 generally concentric to pipe 10.
  • spacers 22 are elongated angle irons including a first leg 24 secured to the inside surface of cylindrical portion 18 at circumferentially spaced locations such as by welding and a second leg 26 extending perpendicularly from leg 24 and having a free edge for abutting with pipe 10.
  • the free edges of spacers 22 terminate in a cylinder having a diameter generally equal to the diameter of the outer surface of pipe 10.
  • Spacers 22 have an axial length generally equal to and coextensive with the axial length of cylindrical portion 18. Spacers 22 are circumferentially spaced around pipe 10 and extend generally parallel to the axis of pipe 10 and of cylindrical portion 18.
  • each housing half 16a and 16b includes first and second edge spacers 22 located adjacent to the longitudinal edges thereof, with the free edges of legs 24 being located circumferentially outward of legs 26. Furthermore, each housing half 16a and 16b further includes at least one intermediate spacer 22 located intermediate the first and second edge spacers 22 and the longitudinal edges of halves 16a and 16b. The number of intermediate spacers 22 depends upon the diameter of pipe 10 and cylindrical portion 18, with three spacers 22 shown in the drawings for each housing half 16a and 16b for pipe 10 having a diameter of 2-5/8 inches (6-2/3 cm).
  • Apparatus 14 further includes a first series of permanent magnets 28 located at equally spaced circumferential intervals intermediate pipe 10 and cylindrical portion 18 with magnets 28 being arranged having their south poles located radially inwardly and adjacent pipe 10 and having their north poles located radially outwardly and adjacent cylindrical portion 18.
  • Apparatus 14 further includes a second series of permanent magnets 30 located at equally spaced circumferential intervals intermediate pipe 10 and cylindrical portion 18 with magnets 30 being arranged having their north poles located radially inwardly and adjacent pipe 10 and having their south poles located radially outwardly and adjacent cylindrical portion 18.
  • Magnets 30 are longitudinally spaced along pipe 10 and cylindrical portion 18 from magnets 28. The number and longitudinal positioning of magnets 30 correspond to the number and longitudinal position of magnets 28.
  • magnets 28 and 30 in each series depends upon the diameter of pipe 10 and cylindrical portion 18, with two magnets 28 and 30 shown in the drawings for each half 16a and 16b positioned inter ⁇ mediate the edge spacers 22 and the intermediate spacer 22 for pipe 10 having a diameter of 2-5/8 inches (6-2/3 cm).
  • Magnets 28 and 30 in the preferred form are formed of neodymium material in the shape of a right parallelepiped having a height of 3/4 inch (1.9 cm) along the longitudinal direction, i.e. the distance between the top and bottom edges of magnets 28 and 30, a width of 1/2 inch (1.27 cm) along a radial direction, i.e.
  • magnets 28 and 30 are generally equal to but larger than the width and that the width is substantially greater and
  • housing halves 16a and 16b including spacers 22 can be fabricated for the particular diameter of pipe 10 to be utilized.
  • housing halves 16a and 16b can be positioned on pipe
  • a clamping band 32 can be positioned around cylindrical portion 18 of housing 16 and tightened to tightly clamp housing halves 16a and 16b
  • housing halves 16a and 16b can be secured together such as by welding 34 the longitudinal free edges of halves 16a and 16b together.
  • plates can be welded to each frustoconical portion 20 overlapping the longitudinal free edges thereof, with the plates not exceeding the diameter of cylindrical portion 18. It can then be appreciated that magnets 28 and 30 are tightly sandwiched between the inside surface of cylindrical portion 18 and the outer surface of pipe 10. Further, it can be appreciated that frustoconical portions 20 close the spacing between the inside surface of cylindrical portion 18 and the outer surface of pipe 10 on the opposite axial ends of cylindrical portion 18.
  • apparatus 14 is not in any way welded or otherwise secured to pipe 10 in a manner which would affect the physical characteristics thereof and specifically which would affect the certification of pipe 10.
  • apparatus 14 is very rigidly secured to pipe 10 according to the preferred teachings of the present invention. Specifically, removal of apparatus 14 in a radial direction is prevented due to the securement of halves 16a and 16b together and concentrically around pipe 10. Sliding of apparatus 14 in a longitudinal direction is prevented due to the abutment and clamping of the minor base of portions 20 and of the free edges of legs 26 of spacers 22 against the outer surface of pipe 10. Additionally, the sandwiching of magnets 28 and 30 between cylindrical portion 18 and pipe 10 also assists in the securement of apparatus 14 to pipe 10.
  • a standard, previously certified pipe 10 can be purchased, with apparatus 14, according to the preferred teachings of the present invention, being added thereto without requiring pipe 10 to be retested or certified prior to installation.
  • Pipes 10 with apparatus 14 secured thereto can then be transported to the oil well.
  • the well pipe tubing can then be installed in casing pipe 12 in the usual manner and including pipe 10 and apparatus 14 secured thereto at approximately 1,000 feet (300 meters) intervals along the well pipe tubing. It should be appreciated that due to the very tight manner that apparatus 14 grips pipe 10 and the reinforcement provided to apparatus 14 by spacers 22, apparatus 14 is able to withstand the rigors of installation in casing pipe 12 without dislodgment from or along pipe 10.
  • apparatus 14 After installation of the well pipe tubing including apparatus 14 at axial spaced intervals, apparatus 14 magnetically treats the flow through the well pipe tubing to prevent and/or eliminate incrustation inside of the well pipe tubing and thus saving maintenance costs and maximizing flow through the well pipe tubing and thus the production from the oil well.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Hydrology & Water Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

Appareil (14) comportant des première et seconde moitiés (16a, 16b) de boîtier qui sont soudées ensemble de manière à ce que ledit appareil (14) puisse être fixé sur une conduite (10) à joint de tube court installée dans un tubage (12) de puits de pétrole. Ledit boîtier (16) comporte une partie cylindrique (18) et des première et seconde parties tronconiques (20) aux extrémités axiales opposées dudit boîtier. Des éléments d'écartement en forme de L à extension axiale (22) sont fixés sur la surface interne de la partie cylindrique (18) et comportent des bras longitudinaux qui viennent buter contre la surface externe de la conduite (10). Des séries de premiers et seconds aimants (28, 30) espacés axialement, en forme de parallélépipède droit, sont placées en sandwich entre la surface interne de la partie cylindrique (18) et la surface externe de la conduite (10), les pôles des premiers et seconds aimants (28, 30) étant inversés par rapport à la conduite (10). Les moitiés (16a, 16b) de boîtier sont soudées le long de leurs bords longitudinaux libres après avoir été serrées ensemble par une bande de serrage (32) avec suffisamment de force pour fixer ledit appareil (14) sur la conduite (10), généralement à l'aide de forces de friction, sans qu'il soit attaché à ladite conduite.
PCT/US1994/012014 1993-10-20 1994-10-20 Appareil destine au traitement magnetique de liquides en ecoulement WO1995011198A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US08/605,193 US5700376A (en) 1994-10-20 1994-10-20 Method and apparatus for magnetically treating flowing liquids
EP94931419A EP0724545A1 (fr) 1993-10-20 1994-10-20 Appareil destine au traitement magnetique de liquides en ecoulement
BR9407881A BR9407881A (pt) 1993-10-20 1994-10-20 Aparelho para tratar magneticamente líquidos que fluem através de um tubo e processo para tratar magneticamente líquidos que fluem
AU80509/94A AU8050994A (en) 1993-10-20 1994-10-20 Apparatus for magnetically treating flowing liquids

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14063793A 1993-10-20 1993-10-20
US08/140,637 1993-10-20

Publications (1)

Publication Number Publication Date
WO1995011198A1 true WO1995011198A1 (fr) 1995-04-27

Family

ID=22492146

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/012014 WO1995011198A1 (fr) 1993-10-20 1994-10-20 Appareil destine au traitement magnetique de liquides en ecoulement

Country Status (5)

Country Link
EP (1) EP0724545A1 (fr)
AU (1) AU8050994A (fr)
BR (1) BR9407881A (fr)
CA (1) CA2174724A1 (fr)
WO (1) WO1995011198A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2143885A1 (es) * 1995-12-21 2000-05-16 Univ Catalunya Politecnica Dispositivo magnetico que modifica y reduce la precipiatacion de sales en condiciones de fluidos.
US6068768A (en) * 1998-04-13 2000-05-30 Carpenter; Roland K. Apparatus for magnetically treating flowing liquids
RU2662491C1 (ru) * 2017-07-26 2018-07-26 Общество с ограниченной ответственностью "ЛУКОЙЛ-Инжиниринг" (ООО "ЛУКОЙЛ-Инжиниринг") Способ предотвращения отложений асфальтеносмолопарафиновых веществ в скважине при штанговом способе добычи пластовой жидкости путем ее омагничивания

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4605498A (en) * 1984-04-06 1986-08-12 Kulish Peter A Apparatus for magnetic treatment of liquids
EP0319936A2 (fr) * 1987-12-09 1989-06-14 Christoph Schubert Dispositif détartreur pour tuyauteries
WO1990010598A1 (fr) * 1989-03-07 1990-09-20 Zimmerman George M Un amplificateur a champ magnetique mieux adapte
US5024271A (en) * 1989-01-09 1991-06-18 Baotou Institute Of Applied Design Of New Materials Permanent-magnet wax-proof device
US5052491A (en) * 1989-12-22 1991-10-01 Mecca Incorporated Of Wyoming Oil tool and method for controlling paraffin deposits in oil flow lines and downhole strings
DE9116358U1 (de) * 1991-09-26 1992-08-20 Straub, Jürgen, 7410 Reutlingen Vorrichtung zur magnetischen Behandlung von Flüssigkeiten, anorganischen und organischen Gemischen bzw. Lösungen
DE9400751U1 (de) * 1994-01-18 1994-03-10 Heck, Ernst, 55234 Bechtolsheim Dauermagnetischer Kalkwandler
EP0616977A1 (fr) * 1993-03-17 1994-09-28 Gilles Thoraval Dispositif magnétique étagé anti-tartre

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4605498A (en) * 1984-04-06 1986-08-12 Kulish Peter A Apparatus for magnetic treatment of liquids
EP0319936A2 (fr) * 1987-12-09 1989-06-14 Christoph Schubert Dispositif détartreur pour tuyauteries
US5024271A (en) * 1989-01-09 1991-06-18 Baotou Institute Of Applied Design Of New Materials Permanent-magnet wax-proof device
WO1990010598A1 (fr) * 1989-03-07 1990-09-20 Zimmerman George M Un amplificateur a champ magnetique mieux adapte
US5052491A (en) * 1989-12-22 1991-10-01 Mecca Incorporated Of Wyoming Oil tool and method for controlling paraffin deposits in oil flow lines and downhole strings
DE9116358U1 (de) * 1991-09-26 1992-08-20 Straub, Jürgen, 7410 Reutlingen Vorrichtung zur magnetischen Behandlung von Flüssigkeiten, anorganischen und organischen Gemischen bzw. Lösungen
EP0616977A1 (fr) * 1993-03-17 1994-09-28 Gilles Thoraval Dispositif magnétique étagé anti-tartre
DE9400751U1 (de) * 1994-01-18 1994-03-10 Heck, Ernst, 55234 Bechtolsheim Dauermagnetischer Kalkwandler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2143885A1 (es) * 1995-12-21 2000-05-16 Univ Catalunya Politecnica Dispositivo magnetico que modifica y reduce la precipiatacion de sales en condiciones de fluidos.
US6068768A (en) * 1998-04-13 2000-05-30 Carpenter; Roland K. Apparatus for magnetically treating flowing liquids
RU2662491C1 (ru) * 2017-07-26 2018-07-26 Общество с ограниченной ответственностью "ЛУКОЙЛ-Инжиниринг" (ООО "ЛУКОЙЛ-Инжиниринг") Способ предотвращения отложений асфальтеносмолопарафиновых веществ в скважине при штанговом способе добычи пластовой жидкости путем ее омагничивания

Also Published As

Publication number Publication date
AU8050994A (en) 1995-05-08
EP0724545A1 (fr) 1996-08-07
BR9407881A (pt) 1996-10-29
CA2174724A1 (fr) 1995-04-27

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