USRE32865E - Fiberglass sucker rod construction - Google Patents
Fiberglass sucker rod construction Download PDFInfo
- Publication number
- USRE32865E USRE32865E US07/033,414 US3341487A USRE32865E US RE32865 E USRE32865 E US RE32865E US 3341487 A US3341487 A US 3341487A US RE32865 E USRE32865 E US RE32865E
- Authority
- US
- United States
- Prior art keywords
- rod
- iadd
- iaddend
- receptacle
- axially
- 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
Links
- 239000011152 fibreglass Substances 0.000 title claims abstract description 27
- 238000010276 construction Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000000853 adhesive Substances 0.000 claims description 17
- 230000001070 adhesive effect Effects 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 239000003129 oil well Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims 1
- 239000007769 metal material Substances 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 16
- 239000010959 steel Substances 0.000 abstract description 16
- 230000013011 mating Effects 0.000 abstract description 3
- 229920006332 epoxy adhesive Polymers 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 125000004122 cyclic group Chemical group 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
- F04B53/144—Adaptation of piston-rods
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
- F16B11/008—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing of tubular elements or rods in coaxial engagement
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B3/00—Key-type connections; Keys
- F16B3/005—Key-type connections; Keys the key being formed by solidification of injected material
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/10—Details of socket shapes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/47—Molded joint
- Y10T403/472—Molded joint including mechanical interlock
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/47—Molded joint
- Y10T403/473—Socket or open cup for bonding material
Definitions
- the present invention relates to an improved sucker rod construction, and more particularly to a sucker rod comprising a fiberglass rod portion epoxy bonded to steel connecting members on each end thereof.
- the present invention is directed to a sucker rod comprising:
- Each of the connecting members receptacles is defined by a series of outwardly converging tapered surfaces which are filled with the adhesive material to bond or otherwise steel connector member. These annular converging surfaces are tapered such that a tension load along the axis of the fiberglass rod creates a wedge or cam-like effect to direct a compression force radially inwardly through the adhesive material toward the rod axis to retain the fiberglass rod in position within each of the steel connecting members against such tension load.
- each connecting member laterally adjacent the tapered internal surface nearest the portion of the rod outside the receptacle is gradually tapered so that the wall is less thick near its portion adjacent the receptacle opening than at portions nearer and laterally adjacent the upper reach of that tapered internal surface.
- FIG. 1 is a vertical sectional view of a first connecting member and fiberglass rod end of the sucker rod of the present invention.
- FIG. 2 is a vertical sectional view of the second connecting member and fiberglass rod end of the sucker rod of the present invention.
- the sucker rod 10 comprises a cylindrical rod element 12 (partially shown in FIG. 1 and FIG. 2), and first and second connector members 14 and 54, respectively.
- the first and second connectors members 14 and 54 are basically identical, except for the gender of their threaded couplings. Therefore the first connector member 14 and its method of attachment to the cylindrical rod element 12, will be described in detail, with the understanding that a like description should also apply to the second connector member 54 and its method of attachment to the cylindrical rod element.
- the first connector member 14 is formed to define an axial receptacle 16 for receiving a first end of the sucker rod cylindrical element 12.
- the axial receptacle 16 is defined by a series of .Iadd.axially spaced apart .Iaddend.outwardly converging tapered surfaces 18, .Iadd.as illustrated, of substantially equal angles of taper, .Iaddend.which cooperate with the external cylindrical surface of the rod element 12 to further define a series of wedge shaped or tapered annuluses 20 about the rod element when the rod element is in position as shown.
- the base frustrums of these outwardly converging tapered frustoconical internal surfaces have equal diameters, and immediately adjacent to the plane of such base frustrums are cylindrical internal surfaces or lands which have a diameter equal to the diameter of such base frustrums.
- the connector member 14 includes an external cylindrical surface 22 terminating in an externally threaded end 24 for threadedly engaging the next successive sucker rod to define a string of sucker rods for lowering into a well bore.
- the first connector member 14 also includes a pair of diametrically opposite flat surfaces 26 for enabling an oil field operator to attach a standard sucker rod wrench thereto for connecting and/or disconnecting the individual sucker rods 10 from one another.
- the first connector member 14 includes a chamfered surface 28 located at the end adjacent the rod element 12, the function of such chamfered surface to be described hereinbelow.
- An internally threaded section 30 is located adjacent the chamfered surface 28 for threadedly receiving a first collet 32 therein to align the cylindrical rod element 12 with the first connctor member 14.
- the collet 32 includes a bore 34 therethrough for receiving an end of the cylindrical rod element 12, and also includes external engaging threads 36 for engaging mating threads 30 of the first connector member 14 to retain the collet in position, which in turn retains the cylindrical rod element 12 in alignment within the first connector member.
- the first collect 32 is basically cylindrical shaped, having an exterior cylindrical surface 38, terminating at one end in a first chamfered surface 40 and at the opposite end in a second chamfered surface 42, which second chamfered surface cooperates with chamfered surface 28 of the first connector member, the function of which will be described hereinbelow.
- the first collet 32 also includes an annular converging tapered surface 44 integrally formed with the internal bore 34 therethrough, which functions in a manner identical to the annular outwardly converging tapered surfaces 18 of the first connector member 14.
- the sucker rod construction of the present invention includes a sufficient quantity of adhesive material 46 to completely fill the annuluses 20 defined by the first connector member outwardly converging tapered surfaces 18 and the outer cylindrical surface of the rod element 12 for adhering or otherwise interconnecting the fiberglass rod cylindrical rod element 12 to the steel connector member 14. Initially in a liquid state, this adhesive material 46 is poured into the connecting member axial receptacle 16. Next, the fiberglass rod 12 is inserted into the receptacle, displacing much of the liquid adhesive 46 and forcing it into the annulus surrounding the rod, where it subsequently cures, forming an annular wedge which is bonded to the rod and the receptacle tapered surface 18.
- the sucker rod construction of the present invention also includes a second connector member 54 at the opposite end of the rod element 12 from the first connector member 14.
- the second connector member 54 is essentially identical to the first connector member; therefore, the same reference numerals are used to indicate identical parts on each connector 14 and 54.
- the difference between the first and second connector members 14 and 54 is the gender of their mating threaded connections: the first connector member 14 (FIG. 1) is a male member having an external threaded end 24, and the second connector member 54 (FIG. 2) incorporates a housing 56 having female internal threads 58 for engaging the externally threaded end 24 of the first (male) connector member of the next successive sucker rod.
- the sucker rod construction 10 of the present invention is formed by positioning the cylindrical rod element 12 within the first connector member axial receptacle 16, threadedly inserting the first collet 32 in position about the cylindrical rod element and into the first connector member.
- the end of the rod 12 is in close fitting relation with a blind bore 17 defining the end portion of the receptacle 16.
- the outer cylindrical surface of the rod is in close fitting relation with the collet bore 34.
- the cylindrical rod element 12 is held in position within the connector member 14 or 54 by a body of adhesive material which fills the annular chamber defined by the cylindrical rod element exterior surface and the series of connector member outwardly converging tapered surfaces 18.
- a suitable quantity of adhesive material 46 in its initial liquid state, into the connector member receptacle 16 prior to the insertion of the cylindrical rod element 12.
- inserting the rod 12 into the receptacle 16 forces the liquid adhesive into the annular chamber surrounding the rod.
- the collet member 32 is next positioned about the rod to threadedly engage the connector member 14 or 54.
- annular converging tapered surface 44 serves to compress any residual liquid adhesive material 46 within the annular chamber and otherwise squeeze any excess material out into the annulus defined by the exterior surface of the cylindrical rod 12 and the collet bore 34.
- the adhesive material 46 when the adhesive material 46 cures, it forms a sleeve having a series of .Iadd.axially spaced apart .Iaddend.annular tapering surfaces defining a series of annular wedges positioned between the rod 12 and the receptacle tapered surfaces 18.
- This hardened adhesive sleeve 46 forms a bond with the fiberglass rod 12 to resist the shear force resulting when tension is applied to the rod, as if to withdraw it from the connector member.
- tension applied to the rod 12 causes the annular wedges of cured adhesive material 46 to be forced into compressive engagement with the rod outer cylindrical surface and with the connector member tapered surfaces 18 and with the collet tapered surface 44. This results in a compression force directed radially inwardly to the center line axis of the rod 12 to compress the annular wedges of adhesive material 46 against the rod to retain the rod in position with the connection member against the action of such tension applied to the rod.
- the second connector member 54 is interconnected to the opposite end of the cylindrical rod element 12 in an identical manner to form a sucker rod construction 10 having a male connector member 14 at one end thereof and a female connector 54 at the other end thereof.
- a plurality of sucker rods 10 of the present invention are interconnected to form a string extending down into the well bore and are connected to a pump positioned in the oil bearing region of the well bore at the lower end thereof.
- the upper end of the sucker rod string is connected to a device for providing reciprocating pump action to the sucker rod string, and the sucker rods are used in the customary manner to actuate the pump to produce oil from the producing, but otherwise unpressurized oil well.
- the abovementioned chamfered surfaces 40, 42 and 28 on the collet 32 and connector members 14 and 54 provide a gradual taper from the smaller diameter of the fiberglass sucker rod to the larger diameter of the connector members, in order to prevent the sucker rod from binding or otherwise catching the connector member on pipe or casing joints within the well bore or at the well head as the sucker rod cycles back and forth within the well bore.
- the fiberglass sucker rod construction of the present invention imparts an elasticity to the sucker rod string not found in conventional all-steel sucker rods.
- this elasticity inherent in pre-stressed fiberglass results in an increased effective stroke length, and an increased stroking force over that of a steel rod having a comparable surface stroke.
- This effect is best illustrated by observing the effect of a rubber band having a weight affixed to its lower end. As the upper end cycles through a reciprocating vertical movement of specified stroke length, it will be seen that the weight at the lower end of the rubber band experiences a stroke length greater than that of the upper end of the rubber band.
- the weight on the rubber band creates a lower downstroke, due to the elasticity of the rubber band, and a higher upstroke, due to the resiliency of the rubber band, than a like weight on a comparable inelastic material.
- the rubber band illustration results in a much more drastic effect than a fiberglass sucker rod; however, the principle is the same and therefore the effect is the same although on a smaller scale, resulting in increased production from a string of fiberglass sucker rods as compared to a string of all-steel sucker rods due to the increased pump stroke that is obtained.
- the fiberglass sucker rod of the present invention may also be used with lighter weight, less expensive surface equipment, because the sucker rod itself is lighter weight and requires less structure and less energy to reciprocate a given length of fiberglass rod within the well bore than a comparable length of all-steel sucker rod. Additionally, the lighter weight fiberglass sucker rod results in greater ease of handling for oil field surface crews.
Abstract
Description
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/033,414 USRE32865E (en) | 1979-09-17 | 1987-04-01 | Fiberglass sucker rod construction |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/076,373 US4360288A (en) | 1979-09-17 | 1979-09-17 | Fiberglass sucker rod construction |
US07/033,414 USRE32865E (en) | 1979-09-17 | 1987-04-01 | Fiberglass sucker rod construction |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/076,373 Reissue US4360288A (en) | 1979-09-17 | 1979-09-17 | Fiberglass sucker rod construction |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE32865E true USRE32865E (en) | 1989-02-14 |
Family
ID=26709665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/033,414 Expired - Lifetime USRE32865E (en) | 1979-09-17 | 1987-04-01 | Fiberglass sucker rod construction |
Country Status (1)
Country | Link |
---|---|
US (1) | USRE32865E (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5253946A (en) * | 1992-05-20 | 1993-10-19 | Dover Resources, Inc. | Sucker rod end fitting |
US5633478A (en) * | 1993-03-25 | 1997-05-27 | Ngk Insulators, Ltd. | Composite electrical insulator and method of manufacturing same |
US6513593B2 (en) * | 2001-04-30 | 2003-02-04 | Raj K. Prasad | Method and apparatus for reducing paraffin and asphaltene deposits in pumping oil wells |
US20080219757A1 (en) * | 2007-03-05 | 2008-09-11 | Rutledge Russell P | Sucker rod end fittings and method of using same |
US20080217914A1 (en) * | 2007-03-05 | 2008-09-11 | Rutledge Russell P | Method of assembling sucker rods and end fittings |
US8721815B2 (en) | 2010-08-09 | 2014-05-13 | Centrax International Corp. | Methods and systems for assembly of fiberglass reinforced sucker rods |
US20160102504A1 (en) * | 2014-10-10 | 2016-04-14 | John Crane Production Solutions Inc. | End fitting for sucker rods |
USD761879S1 (en) * | 2011-08-09 | 2016-07-19 | FBJ Tools, LLC | Polished rod |
US20180051522A1 (en) * | 2015-03-12 | 2018-02-22 | Lifting Solutions, Inc. | Sucker rod terminus assembly for underground wells |
US9988858B1 (en) | 2017-12-27 | 2018-06-05 | Endurance Lift Solutions, Llc | End fitting for sucker rods |
US10190371B2 (en) | 2015-12-17 | 2019-01-29 | Sigma Lift Solutions, Corp. | Sucker rod |
US10385625B2 (en) | 2011-08-09 | 2019-08-20 | FinalRod IP, LLC | Sucker rod apparatus and method |
US10443319B2 (en) | 2017-12-27 | 2019-10-15 | Endurane Lift Solutions, LLC | End fitting for sucker rods |
US10995568B2 (en) | 2011-08-09 | 2021-05-04 | FinalRod IP, LLC | Automated end fitting installation system and method |
Citations (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1064764A (en) * | 1912-06-25 | 1913-06-17 | Clarence Lyman Parker | Sucker-rod coupling. |
US1689281A (en) * | 1923-10-29 | 1928-10-30 | Forssell Carl Abraham | Joint in iron structures and reenforcing members |
US2266357A (en) * | 1939-11-21 | 1941-12-16 | Lane Wells Co | Releasable cable head |
GB681550A (en) * | 1949-07-06 | 1952-10-29 | N F B Displacement Pump Co Ltd | Improvements in and relating to means for attaching wire ropes to sockets |
US2652231A (en) * | 1949-10-03 | 1953-09-15 | Roy A Smith | Pumping assembly |
US2825752A (en) * | 1954-11-17 | 1958-03-04 | William H Knutz | Insulator |
US2874937A (en) * | 1955-11-25 | 1959-02-24 | Edward F Higgins | Corrosion-resistant sucker rod and method of constructing same |
US2874938A (en) * | 1956-01-09 | 1959-02-24 | Edward F Higgins | End fittings for sucker rods having a flowable binder |
FR1210779A (en) * | 1957-07-05 | 1960-03-10 | Columbia Products Co | Sucker rod for oil wells or similar installations |
US3018140A (en) * | 1959-05-12 | 1962-01-23 | True Temper Corp | Adhesive connection for tool handle |
US3362731A (en) * | 1965-11-22 | 1968-01-09 | Autoclave Eng Inc | High pressure fitting |
US3461539A (en) * | 1966-09-26 | 1969-08-19 | Us Navy | Method of connecting a fiberglass rodlike member to a metallic terminal |
US3477335A (en) * | 1968-01-31 | 1969-11-11 | Harold Gold | High strength stud or insert |
US3534989A (en) * | 1968-05-29 | 1970-10-20 | Joslyn Mfg & Supply Co | End fitting |
US3549791A (en) * | 1968-05-29 | 1970-12-22 | Joslyn Mfg & Supply Co | Protected rod insulator with soft elastomer filler |
US3655226A (en) * | 1970-08-03 | 1972-04-11 | C R C Ind | Bearing assembly |
US3661388A (en) * | 1969-10-29 | 1972-05-09 | True Temper Corp | Striking implement and head assembly therefor |
US3737556A (en) * | 1972-01-21 | 1973-06-05 | Joslyn Mfg & Supply Co | Cable termination apparatus with rigid stress relief assembly and conductive seal |
DE2511809A1 (en) * | 1975-03-18 | 1976-09-30 | Rhein Westfael Isolatoren | Suspension insulator with surface leak current-proof, envelope - of GFR plastics rod, disc-shaped envelope, elastic insulator and pre-tensioned spring system |
US4024913A (en) * | 1974-03-25 | 1977-05-24 | Grable Donovan B | Well installations employing non-metallic lines, tubing casing and machinery |
US4127741A (en) * | 1976-03-31 | 1978-11-28 | Rosenthal Technik Ag | Arrangement for elastically clamping glass fibre rods |
CA1072191A (en) * | 1975-05-12 | 1980-02-19 | George E. Lusk | Multiwedge connector for an electrical suspension insulator |
US4195691A (en) * | 1978-11-01 | 1980-04-01 | Joslyn Mfg. And Supply Co. | Composite sucker rod string and method of use thereof |
US4198538A (en) * | 1976-03-15 | 1980-04-15 | Josyln Mfg. and Supply Co. | Suspension insulator |
US4205926A (en) * | 1977-08-15 | 1980-06-03 | Carlson Drexel T | Sucker rod and coupling therefor |
-
1987
- 1987-04-01 US US07/033,414 patent/USRE32865E/en not_active Expired - Lifetime
Patent Citations (26)
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---|---|---|---|---|
US1064764A (en) * | 1912-06-25 | 1913-06-17 | Clarence Lyman Parker | Sucker-rod coupling. |
US1689281A (en) * | 1923-10-29 | 1928-10-30 | Forssell Carl Abraham | Joint in iron structures and reenforcing members |
US2266357A (en) * | 1939-11-21 | 1941-12-16 | Lane Wells Co | Releasable cable head |
GB681550A (en) * | 1949-07-06 | 1952-10-29 | N F B Displacement Pump Co Ltd | Improvements in and relating to means for attaching wire ropes to sockets |
US2652231A (en) * | 1949-10-03 | 1953-09-15 | Roy A Smith | Pumping assembly |
US2825752A (en) * | 1954-11-17 | 1958-03-04 | William H Knutz | Insulator |
US2874937A (en) * | 1955-11-25 | 1959-02-24 | Edward F Higgins | Corrosion-resistant sucker rod and method of constructing same |
US2874938A (en) * | 1956-01-09 | 1959-02-24 | Edward F Higgins | End fittings for sucker rods having a flowable binder |
FR1210779A (en) * | 1957-07-05 | 1960-03-10 | Columbia Products Co | Sucker rod for oil wells or similar installations |
US3018140A (en) * | 1959-05-12 | 1962-01-23 | True Temper Corp | Adhesive connection for tool handle |
US3362731A (en) * | 1965-11-22 | 1968-01-09 | Autoclave Eng Inc | High pressure fitting |
US3461539A (en) * | 1966-09-26 | 1969-08-19 | Us Navy | Method of connecting a fiberglass rodlike member to a metallic terminal |
US3477335A (en) * | 1968-01-31 | 1969-11-11 | Harold Gold | High strength stud or insert |
US3534989A (en) * | 1968-05-29 | 1970-10-20 | Joslyn Mfg & Supply Co | End fitting |
US3549791A (en) * | 1968-05-29 | 1970-12-22 | Joslyn Mfg & Supply Co | Protected rod insulator with soft elastomer filler |
US3661388A (en) * | 1969-10-29 | 1972-05-09 | True Temper Corp | Striking implement and head assembly therefor |
US3655226A (en) * | 1970-08-03 | 1972-04-11 | C R C Ind | Bearing assembly |
US3737556A (en) * | 1972-01-21 | 1973-06-05 | Joslyn Mfg & Supply Co | Cable termination apparatus with rigid stress relief assembly and conductive seal |
US4024913A (en) * | 1974-03-25 | 1977-05-24 | Grable Donovan B | Well installations employing non-metallic lines, tubing casing and machinery |
DE2511809A1 (en) * | 1975-03-18 | 1976-09-30 | Rhein Westfael Isolatoren | Suspension insulator with surface leak current-proof, envelope - of GFR plastics rod, disc-shaped envelope, elastic insulator and pre-tensioned spring system |
CA1072191A (en) * | 1975-05-12 | 1980-02-19 | George E. Lusk | Multiwedge connector for an electrical suspension insulator |
US4315699A (en) * | 1975-05-12 | 1982-02-16 | Joslyn Mfg. And Supply Co. | Multiwedge connector |
US4198538A (en) * | 1976-03-15 | 1980-04-15 | Josyln Mfg. and Supply Co. | Suspension insulator |
US4127741A (en) * | 1976-03-31 | 1978-11-28 | Rosenthal Technik Ag | Arrangement for elastically clamping glass fibre rods |
US4205926A (en) * | 1977-08-15 | 1980-06-03 | Carlson Drexel T | Sucker rod and coupling therefor |
US4195691A (en) * | 1978-11-01 | 1980-04-01 | Joslyn Mfg. And Supply Co. | Composite sucker rod string and method of use thereof |
Non-Patent Citations (2)
Title |
---|
"Fiberglass Sucker Rods in Beam-Pumped Oil Wells", a paper by D. L. Watkins & John Haarsma presented to the SPE-AIME in Nov. 1977 and published in the May 1978 issue of Journal of Petroleum Technology, pp. 731-736. |
Fiberglass Sucker Rods in Beam Pumped Oil Wells , a paper by D. L. Watkins & John Haarsma presented to the SPE AIME in Nov. 1977 and published in the May 1978 issue of Journal of Petroleum Technology, pp. 731 736. * |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5253946A (en) * | 1992-05-20 | 1993-10-19 | Dover Resources, Inc. | Sucker rod end fitting |
US5633478A (en) * | 1993-03-25 | 1997-05-27 | Ngk Insulators, Ltd. | Composite electrical insulator and method of manufacturing same |
US6513593B2 (en) * | 2001-04-30 | 2003-02-04 | Raj K. Prasad | Method and apparatus for reducing paraffin and asphaltene deposits in pumping oil wells |
US20080219757A1 (en) * | 2007-03-05 | 2008-09-11 | Rutledge Russell P | Sucker rod end fittings and method of using same |
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