CA2500740C - Apparatus for connecting sucker rods - Google Patents
Apparatus for connecting sucker rods Download PDFInfo
- Publication number
- CA2500740C CA2500740C CA2500740A CA2500740A CA2500740C CA 2500740 C CA2500740 C CA 2500740C CA 2500740 A CA2500740 A CA 2500740A CA 2500740 A CA2500740 A CA 2500740A CA 2500740 C CA2500740 C CA 2500740C
- Authority
- CA
- Canada
- Prior art keywords
- sucker rod
- coupling
- sucker
- exterior surface
- string
- 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 - Fee Related
Links
- 230000008878 coupling Effects 0.000 claims abstract description 19
- 238000010168 coupling process Methods 0.000 claims abstract description 19
- 238000005859 coupling reaction Methods 0.000 claims abstract description 19
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 238000005553 drilling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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
- 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
- E21B17/042—Threaded
-
- 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
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1071—Wear protectors; Centralising devices, e.g. stabilisers specially adapted for pump rods, e.g. sucker rods
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Filtration Of Liquid (AREA)
Abstract
A apparatus having an elongate body having an exterior surface, a first end and a second end. A first coupling is positioned at the first end which adapted to mate with a first sucker rod. A second coupling is positioned at the second end which is adapted to mate with a second sucker rod to form a sucker rod string. At least one helical fin spiralling around at least a portion of the exterior surface of the body, such that, upon rotation of the sucker string, the at least one helical fin creates fluid movement.
Description
TITLE OF THE INVENTION:
Apparatus for connecting Sucker Rods FIELD OF THE INVENTION
s The present invention relates to an apparatus for connecting sucker rods BACKGROUND OF THE INVENTION
Presently, connectors are used to connect one sucker rod to another in end to end fashion. When the sucker rods are connected in end to end fashion, they make up the 1 o mechanical link from a unit on the surface to the sucker rod pump at the bottom of a well. The sucker rod pump lifts fluid to the surface by rotating the sucker rods in a tubing string in a borehole. Presently, boxes or heavy coupling elements are used when connection one sucker rod to another sucker rod.
1 s SUMMARY OF THE INVENTION
What is required is a connector for sucker rods which assists the flow of fluid by propelling the fluid during rotation of a sucker rod string.
According to the present invention there is provided A apparatus having an elongate 2 o body having an exterior surface, a first end and a second end. A first coupling is positioned at the first end which adapted to mate with a first sucker rod. A
second coupling is positioned at the second end which is adapted to mate with a second sucker rod to form a sucker rod string. At least one helical fin spiralling around at least a portion of the exterior surface of the body, such that, upon rotation of the sucker string, the at least 25 one helical fin creates fluid movement.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings, the drawings are 3 o for the purpose of illustration only and are not intended to in any way limit the scope of the invention to the particular embodiment or embodiments shown, wherein:
FIGURE 1 is a side elevation view of the apparatus;
FIGURE 2 is a side elevation view in section of the apparatus illustrated in FIGURE
1;
FIGURE 3 is a side elevation view of the apparatus connecting two sucker rods together;
FIGURE 4 is a side elevation view of a second embodiment of the apparatus.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The preferred embodiment, a connector for sucker rods generally identified by reference numeral 10, will now be described with reference to FIGURES 1 through 3. An alternative embodiment will be described with reference to FIGURE 4.
to Structure and Relationship of Parts:
Referring to FIGURE 1 there is provide an apparatus generally referenced as numeral 10 which operates as a connector for sucker rods. Apparatus 10 has an elongate body 12 with an exterior surface 14, a first end 16 and a second end 18. Refernng to FIGURE
3, a first i 5 coupling 20 is positioned at the first end 16 which is adapted to mate with a first sucker rod 22. A second coupling 24 is positioned at the second end 18 which adapted to mate with a second sucker rod 26 to form a sucker rod string 28. Referring to FIGURE 2, in the illustrated embodiment, first coupling 20 has a threaded bore 30 which is adapted to be treaded onto first sucker rod 22 as illustrated in FIGURE 3. Second coupling 24 also 2o has a threaded bore 32 which is adapted to be threaded onto second sucker rod 26 as illustrated in FIGURE 3. It will be appreciated that first coupling 20 and second coupling 24 could also use different means of mating with first sucker rod 22 and second sucker rod 26. Referring to FIGURE 3, apparatus 10 can be used to connect a number of sucker rods together in end to end fashion to create sucker rod string 28 of a desired length.
25 Referring to FIGURE 1, a helical fin 34 spirals around a portion of the exterior surface l4 of body 12, such that, upon rotation of sucker string 28 illustrated in FIGURE
3, helical fin 34 creates fluid movement. In the illustrated embodiment, apparatus 10 is illustrated as having a single helical fin 34, although it will be appreciated that apparatus could incorporate more than one helical fin 34.
3o Referring to FIGURE 4, there is illustrated an alternative embodiment of apparatus generally referenced by numeral 100. With alternative embodiment 100, helical fin spirals around the elongate body from the first end to the second end.
Operation:
Referring to FIGURE 3, apparatus 10 can be used to connect a number of sucker rods together in end to end fashion to create sucker rod string 28 of a desired length. To do so, first coupling 20 threadably mated with first sucker rod 22. Second sucker rod 26 is threadably mated to second coupling 24. Upon rotation of sucker rod string, 28, helical fin 34 creates fluid movement to assist in moving fluid to the surface as shown by arrows 36. The apparatus could be used with sucker rod installations that are used in directional drilling as well.
Cautionary Warnings:
1 o In this patent document, the word "comprising" is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article "a" does not exclude the possibility that more than one of the element is present, unless the context clearly requires that there be one and only one of the elements.
It will be apparent to one skilled in the art that modifications may be made to the illustrated embodiment without departing from the spirit and scope of the invention as hereinafter defined in the Claims.
Apparatus for connecting Sucker Rods FIELD OF THE INVENTION
s The present invention relates to an apparatus for connecting sucker rods BACKGROUND OF THE INVENTION
Presently, connectors are used to connect one sucker rod to another in end to end fashion. When the sucker rods are connected in end to end fashion, they make up the 1 o mechanical link from a unit on the surface to the sucker rod pump at the bottom of a well. The sucker rod pump lifts fluid to the surface by rotating the sucker rods in a tubing string in a borehole. Presently, boxes or heavy coupling elements are used when connection one sucker rod to another sucker rod.
1 s SUMMARY OF THE INVENTION
What is required is a connector for sucker rods which assists the flow of fluid by propelling the fluid during rotation of a sucker rod string.
According to the present invention there is provided A apparatus having an elongate 2 o body having an exterior surface, a first end and a second end. A first coupling is positioned at the first end which adapted to mate with a first sucker rod. A
second coupling is positioned at the second end which is adapted to mate with a second sucker rod to form a sucker rod string. At least one helical fin spiralling around at least a portion of the exterior surface of the body, such that, upon rotation of the sucker string, the at least 25 one helical fin creates fluid movement.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings, the drawings are 3 o for the purpose of illustration only and are not intended to in any way limit the scope of the invention to the particular embodiment or embodiments shown, wherein:
FIGURE 1 is a side elevation view of the apparatus;
FIGURE 2 is a side elevation view in section of the apparatus illustrated in FIGURE
1;
FIGURE 3 is a side elevation view of the apparatus connecting two sucker rods together;
FIGURE 4 is a side elevation view of a second embodiment of the apparatus.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The preferred embodiment, a connector for sucker rods generally identified by reference numeral 10, will now be described with reference to FIGURES 1 through 3. An alternative embodiment will be described with reference to FIGURE 4.
to Structure and Relationship of Parts:
Referring to FIGURE 1 there is provide an apparatus generally referenced as numeral 10 which operates as a connector for sucker rods. Apparatus 10 has an elongate body 12 with an exterior surface 14, a first end 16 and a second end 18. Refernng to FIGURE
3, a first i 5 coupling 20 is positioned at the first end 16 which is adapted to mate with a first sucker rod 22. A second coupling 24 is positioned at the second end 18 which adapted to mate with a second sucker rod 26 to form a sucker rod string 28. Referring to FIGURE 2, in the illustrated embodiment, first coupling 20 has a threaded bore 30 which is adapted to be treaded onto first sucker rod 22 as illustrated in FIGURE 3. Second coupling 24 also 2o has a threaded bore 32 which is adapted to be threaded onto second sucker rod 26 as illustrated in FIGURE 3. It will be appreciated that first coupling 20 and second coupling 24 could also use different means of mating with first sucker rod 22 and second sucker rod 26. Referring to FIGURE 3, apparatus 10 can be used to connect a number of sucker rods together in end to end fashion to create sucker rod string 28 of a desired length.
25 Referring to FIGURE 1, a helical fin 34 spirals around a portion of the exterior surface l4 of body 12, such that, upon rotation of sucker string 28 illustrated in FIGURE
3, helical fin 34 creates fluid movement. In the illustrated embodiment, apparatus 10 is illustrated as having a single helical fin 34, although it will be appreciated that apparatus could incorporate more than one helical fin 34.
3o Referring to FIGURE 4, there is illustrated an alternative embodiment of apparatus generally referenced by numeral 100. With alternative embodiment 100, helical fin spirals around the elongate body from the first end to the second end.
Operation:
Referring to FIGURE 3, apparatus 10 can be used to connect a number of sucker rods together in end to end fashion to create sucker rod string 28 of a desired length. To do so, first coupling 20 threadably mated with first sucker rod 22. Second sucker rod 26 is threadably mated to second coupling 24. Upon rotation of sucker rod string, 28, helical fin 34 creates fluid movement to assist in moving fluid to the surface as shown by arrows 36. The apparatus could be used with sucker rod installations that are used in directional drilling as well.
Cautionary Warnings:
1 o In this patent document, the word "comprising" is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article "a" does not exclude the possibility that more than one of the element is present, unless the context clearly requires that there be one and only one of the elements.
It will be apparent to one skilled in the art that modifications may be made to the illustrated embodiment without departing from the spirit and scope of the invention as hereinafter defined in the Claims.
Claims (6)
1. ~A apparatus, comprising an elongate body having an exterior surface, a first end and a second end;
a first coupling positioned at the first end adapted to mate with a first sucker rod;
a second coupling positioned at the second end adapted to mate with a second sucker rod to form a sucker rod string; and at least one raised profile spiralling around at least a portion of the exterior surface of the body, such that, upon rotation of the sucker string, the at least one helical fin creates fluid movement.
a first coupling positioned at the first end adapted to mate with a first sucker rod;
a second coupling positioned at the second end adapted to mate with a second sucker rod to form a sucker rod string; and at least one raised profile spiralling around at least a portion of the exterior surface of the body, such that, upon rotation of the sucker string, the at least one helical fin creates fluid movement.
2. ~The apparatus as defined in claim 1, wherein the at least one raised profile is a helical fin.
3. ~The apparatus as defined in claim 1 wherein the at least one raised profile spirals around the exterior surface of elongate body from the first end to the second end.
4. ~The apparatus as defined in claim 1 wherein the at least one raised profile spirals around the first coupling and along the exterior surface and around the second coupling.
5. ~The apparatus as defined in claim 1 wherein the first coupling has a threaded bore adapted to receive a threaded end of the first sucker rod.
6. ~The apparatus as defined in claim 1 wherein the second coupling has a threaded bore adapted to receive a threaded end of the second sucker rod.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2500740A CA2500740C (en) | 2005-03-04 | 2005-03-04 | Apparatus for connecting sucker rods |
| US11/363,700 US20060196657A1 (en) | 2005-03-04 | 2006-02-28 | Apparatus for connecting sucker rods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2500740A CA2500740C (en) | 2005-03-04 | 2005-03-04 | Apparatus for connecting sucker rods |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2500740A1 CA2500740A1 (en) | 2006-09-04 |
| CA2500740C true CA2500740C (en) | 2010-06-22 |
Family
ID=36943027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2500740A Expired - Fee Related CA2500740C (en) | 2005-03-04 | 2005-03-04 | Apparatus for connecting sucker rods |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20060196657A1 (en) |
| CA (1) | CA2500740C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922288B (en) * | 2009-06-15 | 2013-03-20 | 山东九环石油机械有限公司 | Intelligent monitoring sucker rod and monitoring system thereof |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2754160A (en) * | 1956-07-10 | Well apparatus | ||
| US1755762A (en) * | 1929-01-09 | 1930-04-22 | John C Armstrong | Sucker-rod guide and cleaner |
| US3083772A (en) * | 1958-10-30 | 1963-04-02 | James C Tripplehorn | Interlocking fixed and ambulatory scrapers |
| US3044552A (en) * | 1959-08-25 | 1962-07-17 | Marshall L Claiborne | Paraffin scraper |
| US3049382A (en) * | 1960-12-20 | 1962-08-14 | Liberty Mfg Company Of Texas | Anti-friction sucker rod coupling |
| US3176771A (en) * | 1962-11-28 | 1965-04-06 | Marshall L Claiborne | Mud scraper |
| US3329212A (en) * | 1964-09-17 | 1967-07-04 | Central Res Inc | Paraffin scraper and rod guide |
| US4088185A (en) * | 1974-12-13 | 1978-05-09 | J. M. Huber Corporation | Molded plastic paraffin scrapers and centralizers |
| US4430787A (en) * | 1981-05-04 | 1984-02-14 | Paramore Harold W | Sucker rods with improved coupling capability and method |
| US4621690A (en) * | 1985-04-12 | 1986-11-11 | Diversified Drilling Services Ltd. | Sucker rod coupling |
| US4905760A (en) * | 1987-10-26 | 1990-03-06 | Ico, Inc. | Sucker rod coupling with protective coating |
| US5015162A (en) * | 1989-11-28 | 1991-05-14 | Heppner Terry D | Attachment for an oil well screw pump system |
| US5334268A (en) * | 1992-12-17 | 1994-08-02 | Ltv Energy Products Co. | Method of producing high strength sucker rod coupling |
| US5339896A (en) * | 1993-05-06 | 1994-08-23 | J. M. Huber Corp. | Field installable rod guide and method |
| US5755284A (en) * | 1993-05-06 | 1998-05-26 | Flow Control Equipment, Inc. | Extended wear rod guide and method |
| US5419397A (en) * | 1993-06-16 | 1995-05-30 | Well-Flow Technologies, Inc. | Well cleaning tool with scratching elements |
| US5727627A (en) * | 1995-04-13 | 1998-03-17 | Fce Control Flow Equipment Ltd. | Well rod centralizer/centralizer stop interface with wear reducing surface |
| CA2221514C (en) * | 1997-11-19 | 2004-05-18 | Rg Industries Ltd. | Method of preventing scrapers on a reciprocating sucker rod from wearing grooves in well tubing, and a scraper |
| CA2306012C (en) * | 2000-04-18 | 2010-04-06 | Peter Gerald Haseloh | Method of retarding sand build up in heavy oil wells |
| US20040011532A1 (en) * | 2002-07-16 | 2004-01-22 | White Jack D. | Combined rod guide and rod rotator device |
-
2005
- 2005-03-04 CA CA2500740A patent/CA2500740C/en not_active Expired - Fee Related
-
2006
- 2006-02-28 US US11/363,700 patent/US20060196657A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| CA2500740A1 (en) | 2006-09-04 |
| US20060196657A1 (en) | 2006-09-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20210907 |
|
| MKLA | Lapsed |
Effective date: 20200304 |