US2812818A - Oil well sucker rod assembly - Google Patents

Oil well sucker rod assembly Download PDF

Info

Publication number
US2812818A
US2812818A US618514A US61851456A US2812818A US 2812818 A US2812818 A US 2812818A US 618514 A US618514 A US 618514A US 61851456 A US61851456 A US 61851456A US 2812818 A US2812818 A US 2812818A
Authority
US
United States
Prior art keywords
outer member
sucker rod
rod assembly
tubing
well
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US618514A
Inventor
John P Brusco
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US618514A priority Critical patent/US2812818A/en
Application granted granted Critical
Publication of US2812818A publication Critical patent/US2812818A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • 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

Definitions

  • the present invention relates to a sucker rod assembly for insertion in a well tubing and in particular to a sucker rod having means for liquefying and removing paraifin that may congeal in the well tubing.
  • An object of the present invention is to provide a sucker rod assembly which lends itself to rapid and efficient liqu fying and removal of semi-solid substances, such as paraffin, and the like, from the sucker rod and from the wall of the well tubing in which the sucker rod assembly is inserted, one which may be used with oil wells which are free-flowing, or with wells which necessitate pumping operations, one which avoids the electrolysis commonly a problem when electrical currents are used in conjunction with the well tubing or well casing, one which lends itself to the application of a solvent for converting solid or semisolid parafiin to a liquid and for lowering the viscosity of heavy oils in the well tubing, one which is sturdy in construction and simple in structure, easily assembled and disassembled, and attached to the pumping jack of a well rig, one which may be economically manufactured and assembled, and one which is highly efiective in action.
  • Figure 1A is a sectional view of the upper end portion of a well casing and well tubing with the upper end portion of the sucker rod assembly of the present invention installed therein,
  • Figure 1B is a sectional view of of the assembly of Figure 1A
  • Figure 2A is a sectional view, on an enlarged scale, taken on the line 2A of Figure 1A with the well tubing and well casing removed,
  • Figure 2B is a sectional View, on an enlarged scale, taken on the line 2B of Figure 113 with the Well tubing and easing removed,
  • Figure 3 is a sectional view, on an enlarged scale, taken on the line 3-3 of Figure 2A,
  • Figure 4 is a sectional view Figure 2A
  • Figure 5 is a sectional view, on an enlarged scale, taken on the line 55 of Figure 23.
  • the oil rod sucker rod assembly comprising an outer hollow member adapted to be positioned within a well tubing 11, the latter being spaced Within and concentric with respect to a well casing 12.
  • the upper end of the well casing 12 and the tubing 11 is closed and connected by a conventionally arranged casing head 13.
  • the upper end of the outer member 10 projects through an insulating bushing 14 and extends above the casing head 13 to where it is attached to a bracket 15 with an insulating collar 16 interposed between the outer member 10 and the bracket 15 to electrically insulate the outer member 10 from the bracket 15 and the cable 17 which connects the bracket 15 to a well rig pumping jack.
  • Means is provided on the lower end of the outer member the lower end portion taken on the line 44 of 10 for attachment of a pump element, such as the piston assembly 18.
  • this means embodies a coupler 19 having an electrically insulating sleeve element 21 electrically separating the outer member 10 from the piston assembly 18.
  • a hollow inner member 22 is positioned within and extends longitudinally through the outer member 10 and has a portion adjacent the upper end thereof projecting above the upper end of the outer member 10.
  • the outer member 10 and the inner member 22 are both fabricated of electrically conductive material, the material of the outer member 10 being of less conductivity than the material of the inner member 22.
  • Electrically insulating means is interposed between the outer member 10 and the inner member 22 and separates them from each other and supports the inner member 22 in its concentric position with respect to the outer member 10.
  • This means embodies a plurality of rings 23 arranged in spaced relation along the inner member 22, the rings 23 being fabricated of a electrically non-conductive material, such as asbestos, or the like.
  • Means is provided for connecting the upper end portions of the outer member 10 and the inner member 22 to opposite sides of a source of electric current and embodies a collar 24 circumposed about the upper end portion of the outer member 19 and electrically in contact therewith.
  • a wire 25 is secured to the terminal post 26 011 the collar 24 and is connected to one side of a source of power.
  • An elbow 27 provided with a terminal 28 provides the means for connecting the inner member 22 to another wire 29 leading to the other side of the source of power.
  • Means is provided on the projecting portion 31 or the inner member 22 for connecting the inner member 22 to a source of liquid solvent under pressure.
  • this means includes a flexible conduit 32 and a valve 33 which controls the flow of the solvent from the conduit 32 to the interior of the inner member 22.
  • the coupler 19 is provided with at least one dispensing port 34 which is connected in communication with a passage 35 through the coupler 19 which is, in turn, connected in communication with the interior of the inner member 22.
  • the sucker rod assembly of the present invention is made in sections and threadedly connected together, as indicated by the reference numeral 36 in Figure 2A.
  • Means is provided for electrically connecting each of the inner members 22 together and consists in a spring biased contact pin 37 recessed into the lower end of the inner member 22 and bearing against the upper end of the next adjacent inner member 22 when the sections are securer together.
  • the pins 37 as shown in Figure 3, being shown as three in number for each inner member 22, by electrically connected to the inner member 22 by cables or fine wires, or other means (not shown), so that there is little or no resistance to the passage of current from one inner member 22 to the neXt adjacent inner member 22.
  • Insulating rings 38 are recessed in grooves 32 provided the outer periphery of the outer member 1e and serve to insulate the outer member 10 from contact with the interior wall of the tubing 11, so that no part of the electric current which flows through the outer member 10 reaches the tubing 11 or the well casing 12.
  • the outer member 10 is provided adjacent its ends with squared sections 4.1 for the application of wrenches in the assembly and disassembly of the sucker rod assembly.
  • a similar squared section 42 is provided on the upper end of the coupler 19.
  • the coupler 19 is formed of two parts 4-3 and 44 and secured together by a nut 45 threadedly engaged upon a bolt 46 which projects from the lower end of the part 43 and is formed integrally therewith.
  • the part 44 is formed with an upwardly extending recess 47 to which there is access in the conventional manner common to oil well tools, not further illustrated and described as part of the present invention.
  • the sucker rod assembly is used to remove paraflin from the tubing 11 and viscous oils from the interior of the tubing 11 by applying a voltage of sufiicient strength to the wires 25 and 29 to cause the outer member to become heated.
  • a solvent may be introduced through the flexible conduit 32 into the interior of the inner member 22 through which it flows to the passage 35 and the port 34 and thence into the space between the outer member 10 and the interior wall of the tubing 11.
  • the solvent employed is diesel oil or dieselet.
  • the sucker rod assembly of the present invention is useful in the removal of semi-solids which may accumulate on the interior of the tubing 11 whether by applying heat to the sucker rod or by the use of solvents, or a combination of the two methods. Electrolysis is prevented by having no current flow through the tubing 11 nor through the well casing 12. Upon conversion of the semi-solids or solids to a liquid state, the pumping action of the piston assembly 18 will force the liquefied solids upwardly and to a point of disposal.
  • an outer hollow member adapted to be positioned within a well tubing, an inner member positioned within and extending longitudinally through said outer member, said outer and inner members being fabricated of electrically conductive material, electrically insulating means interposed between said inner and outer members and separating them from each other, means electrically connecting the lower ends of said outer and inner members together, means on the upper end of said outer member for attachment of a pumping jack, means on the lower endof said outer member for attachment to a pump element, and means for connecting said outer and inner members to opposite sides of a source of electric current, said outer member upon flow of electric current therethrough becoming heated throughout its length whereby the heat thus generated is transferred to semi-fluid substances in the portion of the surrounding well tubing and converts said substances into a flowable state.
  • an outer'hollow member adapted to be positioned within a well tubing, an inner member positioned within and extending longitudinally through said outer member, said outer and inner members being fabricated of electrically conductive material, the material of said outer member being of less conductivity than the material of said inner member, electrically insulating means interposed between said outer and inner members and separating them from each other, means electrically connecting the lower ends of said outer and inner members together, means on the upper end of said outer member for attachment of a pumping jack, means on the lower end of said outer member for attachment of a pump element, and means for connecting said outer and inner members to opposite sides of a source of electric current, said outer member upon flow of electric current therethrough becoming heated throughout its length whereby the heat thus generated is transferred to semi-fluid substances in the portion of the surrounding well tubing'and converts said substances into a flowable state.
  • an outer hollow member adapted to be positioned within a well tubing, an inner member positioned within and extending longitudinally through said outer member, said outer and inner members being fabricated of electrically conductive material, electrically insulating means interposed between said outer and inner members and separating them from each other, means electrically connecting the lower ends of said inner and outer members together, said last named means embodying a coupler for attachment of a pump element, means on the upper end of said outer member for attachment of a pumping jack, and means for connecting the upper end portions of said outer and inner members to oposite sides of a source of electric current, said outer member upon flow of electric current therethrough becoming heated throughout its length whereby the heat thus generated is transferred to semi-fluid substances in the portion of the surrounding well tubing and converts said substances into a flowable state.
  • an outer hollow member adapted to be positioned within a well tubing, an inner member positioned within and extending longitudinally through said outer member, said outer and inner members being fabricated of electrically c011- nuctive material, electrically insulating means interposed between said outer and inner members and separating them from each other, means electrically connecting the lower ends of said outer and inner members together, said last named means embodying a coupler for attachment of a pump element, said coupler including an electrically insulating material electrically separating said outer member from said pump element, means on the upper end of said outer member for attachment of a pumping jack, and means for connecting said outer and inner members to opposite sides of a source of electric current, said outer member upon flow of electric current therethrough becoming heated throughout its length whereby the heat thus generated is transferred to semi-fluid substances in the portion of the surrounding well tubing and converts said substances into a fiowable state.
  • an outer hollow member adapted to be positioned within a well tubing, a hollow inner member positioned within and extending longitudinally through said outer member and having a portion adjacent the upper end thereof projecting above the upper end of said outer member, said outer and inner members being fabricated of electrically conductive material, the material of said outer member being of less conductivity than the material of said inner member, electrically insulating means interposed between said outer and inner members and separating them from each other, means electrically connecting the lower ends of said outer member and said inner member together, said last named means embodying a coupler for attachment of a pump element, said coupler including an electrically insulating material electrically separating said outer member from said pump element, means on the upper end of said outer member for attachment of a pumping jack, means on the projecting portion of said inner member for attachment to a source of solvent under pressure, a coupler on the lower end of said outer member for attachment of a pump element, said coupler being provided with a passage connecting in communication the space between said

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Supports For Pipes And Cables (AREA)

Description

Nov. 12, 1957 J. P. BRUSCO OIL WELL SUCKER- ROD ASSEMBLY 2 Sheets-Sheet 1 Filed 001;. 26, 1956 POW-ER INVENTOR.
JOHN BRUSCQ AmRNEYS as: I
Nov. 12, 1957 J. P. BRUSCO OIL WELL SUCKER ROD ASSEMBLY 2 Sheets-Sheet 2 Filed 001:. 26, 1956 INVENTOR. UTDHN P. aizusco ATTO ZN EVS g/l/ /l r/ff l/r l/ I ggy/41"? United States Patent U OIL WELL SUCKER ROD ASSEMBLY John P. Brusco, Salome, Ariz. Application Getober 26, 1956, Serial No. 613,514 Claims. (Cl. 16660) The present invention relates to a sucker rod assembly for insertion in a well tubing and in particular to a sucker rod having means for liquefying and removing paraifin that may congeal in the well tubing.
An object of the present invention is to provide a sucker rod assembly which lends itself to rapid and efficient liqu fying and removal of semi-solid substances, such as paraffin, and the like, from the sucker rod and from the wall of the well tubing in which the sucker rod assembly is inserted, one which may be used with oil wells which are free-flowing, or with wells which necessitate pumping operations, one which avoids the electrolysis commonly a problem when electrical currents are used in conjunction with the well tubing or well casing, one which lends itself to the application of a solvent for converting solid or semisolid parafiin to a liquid and for lowering the viscosity of heavy oils in the well tubing, one which is sturdy in construction and simple in structure, easily assembled and disassembled, and attached to the pumping jack of a well rig, one which may be economically manufactured and assembled, and one which is highly efiective in action. These and other objects and advantages of the present invention will be fully apparent from the following description when taken in connection with the annexed drawings, in which:
Figure 1A is a sectional view of the upper end portion of a well casing and well tubing with the upper end portion of the sucker rod assembly of the present invention installed therein,
Figure 1B is a sectional view of of the assembly of Figure 1A,
Figure 2A is a sectional view, on an enlarged scale, taken on the line 2A of Figure 1A with the well tubing and well casing removed,
Figure 2B is a sectional View, on an enlarged scale, taken on the line 2B of Figure 113 with the Well tubing and easing removed,
Figure 3 is a sectional view, on an enlarged scale, taken on the line 3-3 of Figure 2A,
Figure 4 is a sectional view Figure 2A, and
Figure 5 is a sectional view, on an enlarged scale, taken on the line 55 of Figure 23.
Referring in greater detail to the drawings in which like numerals represent like parts throughout the several views, the oil rod sucker rod assembly, according to the present invention comprising an outer hollow member adapted to be positioned within a well tubing 11, the latter being spaced Within and concentric with respect to a well casing 12. The upper end of the well casing 12 and the tubing 11 is closed and connected by a conventionally arranged casing head 13.
The upper end of the outer member 10 projects through an insulating bushing 14 and extends above the casing head 13 to where it is attached to a bracket 15 with an insulating collar 16 interposed between the outer member 10 and the bracket 15 to electrically insulate the outer member 10 from the bracket 15 and the cable 17 which connects the bracket 15 to a well rig pumping jack.
Means is provided on the lower end of the outer member the lower end portion taken on the line 44 of 10 for attachment of a pump element, such as the piston assembly 18. Specifically, this means embodies a coupler 19 having an electrically insulating sleeve element 21 electrically separating the outer member 10 from the piston assembly 18.
A hollow inner member 22 is positioned within and extends longitudinally through the outer member 10 and has a portion adjacent the upper end thereof projecting above the upper end of the outer member 10. The outer member 10 and the inner member 22 are both fabricated of electrically conductive material, the material of the outer member 10 being of less conductivity than the material of the inner member 22.
Electrically insulating means is interposed between the outer member 10 and the inner member 22 and separates them from each other and supports the inner member 22 in its concentric position with respect to the outer member 10. This means embodies a plurality of rings 23 arranged in spaced relation along the inner member 22, the rings 23 being fabricated of a electrically non-conductive material, such as asbestos, or the like.
Means is provided for connecting the upper end portions of the outer member 10 and the inner member 22 to opposite sides of a source of electric current and embodies a collar 24 circumposed about the upper end portion of the outer member 19 and electrically in contact therewith. A wire 25 is secured to the terminal post 26 011 the collar 24 and is connected to one side of a source of power. An elbow 27 provided with a terminal 28 provides the means for connecting the inner member 22 to another wire 29 leading to the other side of the source of power.
Means is provided on the projecting portion 31 or the inner member 22 for connecting the inner member 22 to a source of liquid solvent under pressure. Specifically, this means includes a flexible conduit 32 and a valve 33 which controls the flow of the solvent from the conduit 32 to the interior of the inner member 22. The coupler 19 is provided with at least one dispensing port 34 which is connected in communication with a passage 35 through the coupler 19 which is, in turn, connected in communication with the interior of the inner member 22.
The sucker rod assembly of the present invention is made in sections and threadedly connected together, as indicated by the reference numeral 36 in Figure 2A. Means is provided for electrically connecting each of the inner members 22 together and consists in a spring biased contact pin 37 recessed into the lower end of the inner member 22 and bearing against the upper end of the next adjacent inner member 22 when the sections are securer together. The pins 37, as shown in Figure 3, being shown as three in number for each inner member 22, by electrically connected to the inner member 22 by cables or fine wires, or other means (not shown), so that there is little or no resistance to the passage of current from one inner member 22 to the neXt adjacent inner member 22.
Insulating rings 38 are recessed in grooves 32 provided the outer periphery of the outer member 1e and serve to insulate the outer member 10 from contact with the interior wall of the tubing 11, so that no part of the electric current which flows through the outer member 10 reaches the tubing 11 or the well casing 12.
The outer member 10 is provided adjacent its ends with squared sections 4.1 for the application of wrenches in the assembly and disassembly of the sucker rod assembly. A similar squared section 42 is provided on the upper end of the coupler 19.
As shown most clearly in Figure 2B, the coupler 19 is formed of two parts 4-3 and 44 and secured together by a nut 45 threadedly engaged upon a bolt 46 which projects from the lower end of the part 43 and is formed integrally therewith. The part 44 is formed with an upwardly extending recess 47 to which there is access in the conventional manner common to oil well tools, not further illustrated and described as part of the present invention.
In use, the sucker rod assembly, according to the present invention, is used to remove paraflin from the tubing 11 and viscous oils from the interior of the tubing 11 by applying a voltage of sufiicient strength to the wires 25 and 29 to cause the outer member to become heated.
A solvent may be introduced through the flexible conduit 32 into the interior of the inner member 22 through which it flows to the passage 35 and the port 34 and thence into the space between the outer member 10 and the interior wall of the tubing 11. Preferably, the solvent employed is diesel oil or dieselet.
The sucker rod assembly of the present invention is useful in the removal of semi-solids which may accumulate on the interior of the tubing 11 whether by applying heat to the sucker rod or by the use of solvents, or a combination of the two methods. Electrolysis is prevented by having no current flow through the tubing 11 nor through the well casing 12. Upon conversion of the semi-solids or solids to a liquid state, the pumping action of the piston assembly 18 will force the liquefied solids upwardly and to a point of disposal.
What is claimed is:
1. in an oil well sucker rod assembly, an outer hollow member adapted to be positioned within a well tubing, an inner member positioned within and extending longitudinally through said outer member, said outer and inner members being fabricated of electrically conductive material, electrically insulating means interposed between said inner and outer members and separating them from each other, means electrically connecting the lower ends of said outer and inner members together, means on the upper end of said outer member for attachment of a pumping jack, means on the lower endof said outer member for attachment to a pump element, and means for connecting said outer and inner members to opposite sides of a source of electric current, said outer member upon flow of electric current therethrough becoming heated throughout its length whereby the heat thus generated is transferred to semi-fluid substances in the portion of the surrounding well tubing and converts said substances into a flowable state.
2. in an oil well sucker rod assembly, an outer'hollow member adapted to be positioned within a well tubing, an inner member positioned within and extending longitudinally through said outer member, said outer and inner members being fabricated of electrically conductive material, the material of said outer member being of less conductivity than the material of said inner member, electrically insulating means interposed between said outer and inner members and separating them from each other, means electrically connecting the lower ends of said outer and inner members together, means on the upper end of said outer member for attachment of a pumping jack, means on the lower end of said outer member for attachment of a pump element, and means for connecting said outer and inner members to opposite sides of a source of electric current, said outer member upon flow of electric current therethrough becoming heated throughout its length whereby the heat thus generated is transferred to semi-fluid substances in the portion of the surrounding well tubing'and converts said substances into a flowable state.
3. In an oil well sucker rod assembly, an outer hollow member adapted to be positioned within a well tubing, an inner member positioned within and extending longitudinally through said outer member, said outer and inner members being fabricated of electrically conductive material, electrically insulating means interposed between said outer and inner members and separating them from each other, means electrically connecting the lower ends of said inner and outer members together, said last named means embodying a coupler for attachment of a pump element, means on the upper end of said outer member for attachment of a pumping jack, and means for connecting the upper end portions of said outer and inner members to oposite sides of a source of electric current, said outer member upon flow of electric current therethrough becoming heated throughout its length whereby the heat thus generated is transferred to semi-fluid substances in the portion of the surrounding well tubing and converts said substances into a flowable state.
4. in an oil well sucker rod assembly, an outer hollow member adapted to be positioned within a well tubing, an inner member positioned within and extending longitudinally through said outer member, said outer and inner members being fabricated of electrically c011- nuctive material, electrically insulating means interposed between said outer and inner members and separating them from each other, means electrically connecting the lower ends of said outer and inner members together, said last named means embodying a coupler for attachment of a pump element, said coupler including an electrically insulating material electrically separating said outer member from said pump element, means on the upper end of said outer member for attachment of a pumping jack, and means for connecting said outer and inner members to opposite sides of a source of electric current, said outer member upon flow of electric current therethrough becoming heated throughout its length whereby the heat thus generated is transferred to semi-fluid substances in the portion of the surrounding well tubing and converts said substances into a fiowable state.
5. In an oil well sucker rod assembly, an outer hollow member adapted to be positioned within a well tubing, a hollow inner member positioned within and extending longitudinally through said outer member and having a portion adjacent the upper end thereof projecting above the upper end of said outer member, said outer and inner members being fabricated of electrically conductive material, the material of said outer member being of less conductivity than the material of said inner member, electrically insulating means interposed between said outer and inner members and separating them from each other, means electrically connecting the lower ends of said outer member and said inner member together, said last named means embodying a coupler for attachment of a pump element, said coupler including an electrically insulating material electrically separating said outer member from said pump element, means on the upper end of said outer member for attachment of a pumping jack, means on the projecting portion of said inner member for attachment to a source of solvent under pressure, a coupler on the lower end of said outer member for attachment of a pump element, said coupler being provided with a passage connecting in communication the space between said outer member and said well tubing with the interior of said inner member, and means for connecting the upper end of said outer member and the projecting portion of said inner member to opposite sides of a source of electric current, said outer member upon fiow of electric current therethrough becoming heated throughout its length whereby the heat thus generated is transferred to semi-fluid substances in the portion of the surrounding well tubing and converts said substances into a flowable state.
References Cited in the file of this patent UNITED STATES PATENTS l it i
US618514A 1956-10-26 1956-10-26 Oil well sucker rod assembly Expired - Lifetime US2812818A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US618514A US2812818A (en) 1956-10-26 1956-10-26 Oil well sucker rod assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US618514A US2812818A (en) 1956-10-26 1956-10-26 Oil well sucker rod assembly

Publications (1)

Publication Number Publication Date
US2812818A true US2812818A (en) 1957-11-12

Family

ID=24478035

Family Applications (1)

Application Number Title Priority Date Filing Date
US618514A Expired - Lifetime US2812818A (en) 1956-10-26 1956-10-26 Oil well sucker rod assembly

Country Status (1)

Country Link
US (1) US2812818A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2982354A (en) * 1957-04-26 1961-05-02 Thomas D Copeland Jr Paraffin removing device
US3067820A (en) * 1958-07-23 1962-12-11 Aquatron Engineering Corp Well head assembly for petroleum wells
US3859503A (en) * 1973-06-12 1975-01-07 Richard D Palone Electric heated sucker rod
US4911239A (en) * 1988-04-20 1990-03-27 Intra-Global Petroleum Reservers, Inc. Method and apparatus for removal of oil well paraffin
US4923006A (en) * 1989-08-07 1990-05-08 Cameron Iron Works Usa, Inc. Insulating support for tubing string
US20050051341A1 (en) * 2003-08-05 2005-03-10 Stream-Flo Industries, Ltd. Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device
US20070137863A1 (en) * 2003-08-05 2007-06-21 Stream-Flo Industries, Ltd. Method and Apparatus to Provide Electrical Connection in a Wellhead for a Downhole Electrical Device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US572867A (en) * 1896-12-08 Means for cleaning oil-wells
US1095365A (en) * 1913-10-11 1914-05-05 James E Williamson Oil-well heater.
US1327269A (en) * 1919-06-09 1920-01-06 George W Christians Apparatus for use in sealing crevices in rock formations
US2660249A (en) * 1949-11-18 1953-11-24 John J Jakosky Means for heating oil wells
CA511194A (en) * 1955-03-22 H. Reese Raymond Oil well pump cleaner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US572867A (en) * 1896-12-08 Means for cleaning oil-wells
CA511194A (en) * 1955-03-22 H. Reese Raymond Oil well pump cleaner
US1095365A (en) * 1913-10-11 1914-05-05 James E Williamson Oil-well heater.
US1327269A (en) * 1919-06-09 1920-01-06 George W Christians Apparatus for use in sealing crevices in rock formations
US2660249A (en) * 1949-11-18 1953-11-24 John J Jakosky Means for heating oil wells

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2982354A (en) * 1957-04-26 1961-05-02 Thomas D Copeland Jr Paraffin removing device
US3067820A (en) * 1958-07-23 1962-12-11 Aquatron Engineering Corp Well head assembly for petroleum wells
US3859503A (en) * 1973-06-12 1975-01-07 Richard D Palone Electric heated sucker rod
US4911239A (en) * 1988-04-20 1990-03-27 Intra-Global Petroleum Reservers, Inc. Method and apparatus for removal of oil well paraffin
US4923006A (en) * 1989-08-07 1990-05-08 Cameron Iron Works Usa, Inc. Insulating support for tubing string
US20050051341A1 (en) * 2003-08-05 2005-03-10 Stream-Flo Industries, Ltd. Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device
US20070137863A1 (en) * 2003-08-05 2007-06-21 Stream-Flo Industries, Ltd. Method and Apparatus to Provide Electrical Connection in a Wellhead for a Downhole Electrical Device
US7410002B2 (en) 2003-08-05 2008-08-12 Stream-Flo Industries, Ltd. Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device
US7552762B2 (en) 2003-08-05 2009-06-30 Stream-Flo Industries Ltd. Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device
US20090260833A1 (en) * 2003-08-05 2009-10-22 Stream-Flo Industries, Ltd. Method and Apparatus to Provide Electrical Connection in a Wellhead for a Downhole Electrical Device
US7918271B2 (en) 2003-08-05 2011-04-05 Stream-Flo Industries Ltd. Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device

Similar Documents

Publication Publication Date Title
US3207220A (en) Electric well heater
US4716960A (en) Method and system for introducing electric current into a well
US2714930A (en) Apparatus for preventing paraffin deposition
US2178931A (en) Combination fluid conduit and electrical conductor
US3859503A (en) Electric heated sucker rod
US2660249A (en) Means for heating oil wells
US4728296A (en) Electrical adaptor for downhole submersible pump
US2812818A (en) Oil well sucker rod assembly
US2781851A (en) Well tubing heater system
EP0317719A1 (en) Heating systems for boreholes
US2690934A (en) Insulated sucker rod and tubing to prevent electrolysis and corrosion
US2982354A (en) Paraffin removing device
US10968729B2 (en) Downhole heater
US2350429A (en) Electrohydrothermic oil-well processor
NL2015756B1 (en) Electrically heated fluid transportation pipe.
US3171889A (en) Electric cable clamp and protector
US2297020A (en) Circulating fluid washer
US2283117A (en) Electric cable for deep well pumps
US4423775A (en) Line stripper
US1764213A (en) Conductor for oil-well heaters
US1232736A (en) Oil-well heater.
RU2644366C1 (en) Multi-channel demountable long-length flexible column
US4753604A (en) Means for sealing electrical conductor rods in a tubular housing
US2760175A (en) Fluid tight cable entry
US2597261A (en) Well clearing apparatus