CN2459435Y - Drop-proof sucker rod - Google Patents
Drop-proof sucker rod Download PDFInfo
- Publication number
- CN2459435Y CN2459435Y CN 00251683 CN00251683U CN2459435Y CN 2459435 Y CN2459435 Y CN 2459435Y CN 00251683 CN00251683 CN 00251683 CN 00251683 U CN00251683 U CN 00251683U CN 2459435 Y CN2459435 Y CN 2459435Y
- Authority
- CN
- China
- Prior art keywords
- rod
- sucker rod
- joint
- separation preventing
- top sub
- 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
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Abstract
The utility model belongs to a power transmission device in a sucker rod type pump well of an oil field. In order to overcome the defects of an ordinary solid sucker rod and a hollow sucker rod, an anti-falling-off sucker rod which is suitable for the oil production technology of a sucker-rod pump is designed, wherein, a tooth body 5 of a joint 3 on the lower part of a section of sucker rod and the tooth body 5 of a joint 1 of the upper part of the other section of sucker rod are connected in an embedded way. The utility model is not only used in a production well with a screw pump, but also is suitable for other sucker-rod pump wells. The utility model has the advantages of falling-off resistance, thread slipping resistance, breaking resistance, etc.
Description
The utility model belongs to the power transmission in the oil field oil pumping rod-type pump sump.
In the existing ground driving screw pump oil production technology, the rod string that is used to connect surface drive and subsurface progressive cavity and transferring power be common solid sucker rod as shown in Figure 4 or JI type hollow rod as shown in Figure 5.These two classes sucker rod two ends are the external screw thread box cupling and connect, and pass through screw thread transferring power moment of torsion and axial load during work.Because screw pump is rotary work, go into the well and stopping process in, rod string itself does not overcome the shackle moment of torsion, causes roofbolt frequently to be threaded off; And when rod string bears continuous moment of torsion and axial load, the also disconnected easily bar of sucker rod, slide fastener.These problems have shortened its application life in screw bolt well.
The purpose of this utility model is the weak point that has overcome common solid sucker rod and hollow rod, and a kind of separation preventing sucker rod that is suitable for sucker rod pumping technology is provided.
The separation preventing sucker rod comprises separation preventing solid sucker rod and separation preventing hollow rod.It can be divided into top sub, the body of rod, bottom joint and box cupling four major parts.
Wherein top sub, the body of rod, bottom joint are integrally welded, box cupling at the welding protheca on the body of rod.
The top sub of separation preventing hollow rod is made up of tooth body, male thread, seal head, shoulder.The body of rod is a hollow rod body.Box cupling is made up of back sealing surface, box thread, preceding sealing surface.The bottom joint is made up of tooth body, male thread, seal head, shoulder.
The top sub of separation preventing solid sucker rod is made up of tooth body, male thread, shoulder.The body of rod is the solid body of rod.Box cupling is made up of box thread.The bottom joint is made up of tooth body, male thread, shoulder.
Wherein the tooth body of a joint sucker rod bottom joint is embedded the connection with the tooth body of another joint sucker rod top sub, and the box cupling that is enclosed within on the body of rod links into an integrated entity by bottom joint and another joint sucker rod top sub of screw thread with a joint sucker rod.
The connected mode of top sub, the body of rod, bottom joint can also be that one-shot forming processes in mould.
The utility model compared with prior art has following advantage: 1, it has anticreep, anti-slide fastener, anti-breaking function, not only be used for screw pump oil production well, and be applicable to other rod pumped well, and also can be used in non-tubing oil extraction well and the same-well injection excavating technology, reduce the operation maintenance cost.2, can bear high torque and other stretching, vibrational loading.3, separation preventing hollow rod center-aisle also can be downhole testing, fluid injection provides passage.
The drawing of accompanying drawing is described as follows:
Fig. 1 is a separation preventing hollow rod structure diagram;
Fig. 2 is a separation preventing solid sucker rod structure diagram;
Fig. 3 is separation preventing sucker rod top sub, bottom joint tooth body sectional drawing;
Fig. 4 is a JI type hollow rod structure diagram;
Fig. 5 is common solid sucker rod structure diagram.
The utility model is described in further detail below in conjunction with accompanying drawing:
The separation preventing sucker rod comprises separation preventing solid sucker rod and separation preventing hollow rod.It can be divided into top sub 1, the body of rod 2, bottom joint 3 and box cupling 4 four major parts.
Wherein top sub 1, the body of rod 2, bottom joint 3 are integrally welded, box cupling 4 at the welding protheca on the body of rod 2.
The top sub 1 of separation preventing hollow rod is made up of tooth body 5, male thread 6, seal head 7, shoulder 8.The body of rod 2 is a hollow rod body.Box cupling 4 is made up of back sealing surface 9, box thread 10, preceding sealing surface 11.Bottom joint 3 is made up of tooth body 5, male thread 6, seal head 7, shoulder 8.
The top sub 1 of separation preventing solid sucker rod is made up of tooth body 5, male thread 6, shoulder 8.The body of rod 2 is the solid body of rod.Box cupling 4 is made up of box thread 10.Bottom joint 3 is made up of tooth body 5, male thread 6, shoulder 8.
Wherein the tooth body 5 of a joint sucker rod bottom joint 3 is embedded the connection with the tooth body 5 of another joint sucker rod top sub 1, the box cupling 4 that is enclosed within on the body of rod 2 links into an integrated entity with another joint sucker rod top sub 1 by the bottom joint 3 of screw thread with a joint sucker rod, realizes that roofbolt connects.The thrust effect is played to the box cupling 4 of sucker rod in shoulder 8 upper surfaces, and can be used on it made spanner and pipe wrench, and the lower surface is used for beating elevator.
Mutually the tooth body 5 that embeds is used for the transferring power moment of torsion, and screw thread only plays interconnect function, transferring power moment of torsion not, and the roofbolt that couples together can just change counter-rotating synchronously, has anticreep, anti-slide fastener, anti-breaking function.
The connected mode of top sub 1, the body of rod 2, bottom joint 3 can also be that one-shot forming processes in mould.
The sealing of separation preventing hollow rod realizes by pack into the sealing surface 9 of " O " type circle and box cupling 4 of joint up and down.
Fig. 3 is separation preventing sucker rod top sub, bottom joint tooth body sectional drawing, and the shape of cross section of tooth body is two semicircular arcs.
During site operation, several same separation preventing sucker rod is coupled together use.At first the tooth body 5 of first segment sucker rod bottom joint 3 is inserted the tooth body 5 of the second joint sucker rod top sub 1, then box cupling 4 is screwed in male thread 6 places of the male thread 6 and the second joint sucker rod top sub 1 of first segment sucker rod bottom joint 3, fully tightly on shoulder 8, finish two joint sucker rods and connect.Remaining sucker rod and the like couple together.
The utility model is not limited to above-mentioned two kinds of embodiment, and the shape of cross section that wherein cooperates tooth body 5 can also be other form fit.
Claims (3)
1, a kind of separation preventing sucker rod, it comprises separation preventing solid sucker rod and separation preventing hollow rod, it can be divided into top sub (1), the body of rod (2), bottom joint (3) and box cupling (4) four major parts, it is characterized in that: its top sub (1), the body of rod (2), bottom joint (3) are integrally welded, box cupling (4) at the welding protheca on the body of rod (2);
The top sub of separation preventing hollow rod (1) is made up of tooth body (5), male thread (6), seal head (7), shoulder (8), the body of rod (2) is a hollow rod body, box cupling (4) is made up of back sealing surface (9), box thread (10), preceding sealing surface (11), and bottom joint (3) is made up of tooth body (5), male thread (6), seal head (7), shoulder (8);
The top sub of separation preventing solid sucker rod (1) is made up of tooth body (5), male thread (6), shoulder (8), the body of rod (2) is the solid body of rod, box cupling (4) is made up of box thread (10), and bottom joint (3) is made up of tooth body (5), male thread (6), shoulder (8);
Wherein the tooth body (5) of a joint sucker rod bottom joint (3) is embedded the connection with the tooth body (5) of another joint sucker rod top sub (1), and the box cupling (4) that is enclosed within on the body of rod (2) links into an integrated entity with another joint sucker rod top sub (1) by the bottom joint (3) of screw thread with a joint sucker rod.
2, a kind of separation preventing sucker rod according to claim 1, its feature also is: the connected mode of top sub (1), the body of rod (2), bottom joint (3) can also process in mould in one-shot forming.
3, a kind of separation preventing sucker rod according to claim 1, its feature also is: the shape of cross section that wherein cooperates tooth body (5) can also be other form fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00251683 CN2459435Y (en) | 2000-09-28 | 2000-09-28 | Drop-proof sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00251683 CN2459435Y (en) | 2000-09-28 | 2000-09-28 | Drop-proof sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2459435Y true CN2459435Y (en) | 2001-11-14 |
Family
ID=33609530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00251683 Expired - Lifetime CN2459435Y (en) | 2000-09-28 | 2000-09-28 | Drop-proof sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2459435Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999982B (en) * | 2007-01-09 | 2010-10-06 | 杜文刚 | Connecting hoop presetting sucker rod |
| CN107060655A (en) * | 2017-05-16 | 2017-08-18 | 中国石油天然气股份有限公司 | Sucker rod and its oil well |
-
2000
- 2000-09-28 CN CN 00251683 patent/CN2459435Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999982B (en) * | 2007-01-09 | 2010-10-06 | 杜文刚 | Connecting hoop presetting sucker rod |
| CN107060655A (en) * | 2017-05-16 | 2017-08-18 | 中国石油天然气股份有限公司 | Sucker rod and its oil well |
| CN107060655B (en) * | 2017-05-16 | 2020-06-09 | 中国石油天然气股份有限公司 | Sucker rod and oil well thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20100928 Granted publication date: 20011114 |