CN203129971U - Weighting pipe for sucker rod - Google Patents
Weighting pipe for sucker rod Download PDFInfo
- Publication number
- CN203129971U CN203129971U CN 201320118928 CN201320118928U CN203129971U CN 203129971 U CN203129971 U CN 203129971U CN 201320118928 CN201320118928 CN 201320118928 CN 201320118928 U CN201320118928 U CN 201320118928U CN 203129971 U CN203129971 U CN 203129971U
- Authority
- CN
- China
- Prior art keywords
- rod
- sucker rod
- hollow
- box
- pin thread
- 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
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a weighting pipe for a sucker rod body. The weighting pipe comprises a hollow sucker rod. One end of the hollow sucker rod is provided with a male fastener, and the other end thereof is provided with a female fastener. The male fastener of the upper section of the hollow sucker rod is connected into the female fastener of the lower section of the hollow sucker rod. The weighting pipe is characterized in that a connecting rod is arranged at an end of the male fastener and provided with a clamping device, and the female fastener is provided with an inner groove matched with the connecting rod in size and further provided with a clamping groove connected with the inner groove. A hollow portion of the hollow sucker rod is filled with graphite powder in volume smaller than that of the hollow portion of the hollow sucker rod. Damages of the sucker rod and a centralizer due to run-out of a weight in the sucker rod are avoided.
Description
Technical field
The utility model relates to the sucker rod in a kind of sucker-rod pumping field, relates in particular to the sucker rod that a kind of weight increases the weight of.
Background technology
Sucker-rod pumping is one of present petroleum industry oil production method the most commonly used, and rod pumping system is a work system up and down reciprocatingly, when up because the fluid column load, the effect of the whole tension power of sucker rod.And when descending; owing to be subjected to the multiple factor affecting such as frictional force between liquid flowing resistance, plunger and the pump barrel; usually can be subjected to a power that stops plunger to move downward; because the existence of this power; make one section above sucker rod of plunger be subjected to the effect of compressive stress, people sucker rod in descending process neither pressurized also not this point of tension call the point of neutralization.Just because of the existence of the point of neutralization, cause the following rod string of the point of neutralization stressed fairly obvious, cause sucker rod wearing and tearing, disconnected taking off easily.In order to address this problem, oil field method commonly used is a certain section sucker rod that employing is special more than plunger, because this sucker rod diameter is thick, weight is big, say the descending resistance that can increase stiffness, offset plunger to a certain extent, but the problem of the point of neutralization is appointed right existence, and with the increase that increases the weight of weight (or length of weighted lever), the point of neutralization moves on gradually.Therefore, the following stressed problem that produces of weighted lever of the point of neutralization does not solve.
Application number is that 200620077193.1 Chinese utility model patent discloses a kind of sucker rod sucker rod weighting tube in application life that prolongs, comprise at least two sections hollow rods, dowel bar, one end of every section hollow rod is provided with box, the other end is provided with pin thread, the pin thread of epimere hollow rod is connected in the box of adjacent hypomere hollow rod, be provided with weight in every section hollow rod, be provided with intercommunicating pore in the pin thread, dowel bar is socketed in the intercommunicating pore, and between the weight of dowel bar overhead in adjacent two sections hollow rods.Owing to be provided with weight in every section hollow rod of this utility model, and between the weight of dowel bar overhead in adjacent two sections hollow rods, at this sucker rod that increases the weight of during in the motion of doing up and down reciprocatingly, weight also can be along with the motion of sucker rod in hollow rod play up and down, inwall and the dowel bar of the bump sucker rod that weight will not stop in play up and down, for a long time like this, will damage sucker rod or cause the dowel bar compressive deformation, can't play the effect of power transmission, and because the play of weight also can cause whole sucker rod vibration, accelerate the wearing and tearing between centralizer and the oil pipe, shortened the application life of centralizer; What the connection of sucker rod was adopted is the connected mode of pin thread and box, when such connected mode is subjected to bigger impact force at sucker rod, circumferentially rotating mutually between the sucker rod might be taken place, and causes the damage of pin thread or box.
The utility model content
In order to overcome above-mentioned because the defective that the sucker rod that play causes about the weight damages and shortened centralizer application life, the utility model provides a kind of sucker rod weighting tube, the hollow rod of this sucker rod weighting tube can not be subjected to bigger impact force, can not produce bigger vibration yet, thereby the wearing and tearing of centralizer have been avoided causing owing to the sucker rod vibration, circumferential rotation can not take place between the sucker rod, prolonged the application life of pin thread and box.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
The sucker rod weighting tube, comprise hollow rod, one end of described hollow rod is provided with pin thread, the other end is provided with box, the pin thread of epimere hollow rod is connected in the box of next section hollow rod, it is characterized in that: the end of described pin thread is provided with connecting rod, described connecting rod is provided with gripping mechanism, described box is provided with inner groovy, size and the connecting rod of described inner groovy are complementary, and described box also is provided with draw-in groove, and described draw-in groove and groove join, the hollow parts of described hollow rod is filled with graphite powder, and the volume of described graphite powder is less than the volume of the hollow parts of hollow rod.
Described gripping mechanism comprises chucking bar and spring, and described chucking bar links to each other with spring.
The utlity model has following advantage:
1, the end of the utility model pin thread is provided with connecting rod, described connecting rod is provided with gripping mechanism, described box is provided with inner groovy, size and the connecting rod of described inner groovy are complementary, described box also is provided with draw-in groove, described draw-in groove and groove join, gripping mechanism comprises chucking bar and spring, described chucking bar links to each other like this when the pin thread box is plugged on spring, connecting rod also injects inner groovy, the chucking bar that is arranged on the gripping mechanism on the connecting rod also injects draw-in groove, because chucking bar and draw-in groove closely cooperate, closely cooperating of connecting rod and inner groovy, make and circumferential rotation can not take place between the sucker rod, prolonged the application life of pin thread and box, the hollow parts of hollow rod is filled with graphite powder, the volume of described graphite powder is less than the volume of the hollow parts of hollow rod, the filled stone ink powder has increased the weight of sucker rod, prevent sucker rod because the fracture that the existence of the point of neutralization causes, because the volume of graphite powder is less than the volume of the hollow parts of hollow rod, sucker rod is when moving reciprocatingly, and graphite can take place to flow, it does not almost have impact force to the sucker rod inwall, has avoided causing owing to the sucker rod vibration wearing and tearing of centralizer.
2, gripping mechanism comprises chucking bar and spring, and described chucking bar links to each other with spring, and the elastic force that relies on spring just can prevent that generation rotates in week between pin thread and the box, thereby prolong the application life of pin thread and box tightening bar being stuck in the draw-in groove inflexibly.
Description of drawings
Fig. 1 is the utility model overall structure schematic diagram.
Mark 1, hollow rod among the figure, 2, box, 3, draw-in groove, 4, graphite powder, 5, pin thread, 6, connecting rod, 7, gripping mechanism.
The specific embodiment
As shown in Figure 1, the utility model, comprise hollow rod 1, one end of described hollow rod 1 is provided with pin thread 5, the other end is provided with box 2, the pin thread 5 of epimere hollow rod is connected in the box 2 of next section hollow rod, it is characterized in that: the end of described pin thread 5 is provided with connecting rod 6, described connecting rod 6 is provided with gripping mechanism 7, and described box 2 is provided with inner groovy, and the size of described inner groovy and connecting rod 6 are complementary, described box 2 also is provided with draw-in groove 3, described draw-in groove 3 joins with groove, and the hollow parts of described hollow rod 1 is filled with graphite powder 4, and the volume of described graphite powder 4 is less than the volume of the hollow parts of hollow rod.
Described gripping mechanism 7 comprises chucking bar and spring, and described chucking bar links to each other with spring.
Claims (2)
1. sucker rod weighting tube, comprise hollow rod (1), one end of described hollow rod (1) is provided with pin thread (5), the other end is provided with box (2), the pin thread of epimere hollow rod (5) is connected in the box (2) of next section hollow rod, it is characterized in that: the end of described pin thread (5) is provided with connecting rod (6), described connecting rod (6) is provided with gripping mechanism (7), described box (2) is provided with inner groovy, the size of described inner groovy and connecting rod (6) are complementary, described box (2) also is provided with draw-in groove (3), described draw-in groove (3) joins with groove, the hollow parts of described hollow rod (1) is filled with graphite powder (4), and the volume of described graphite powder (4) is less than the volume of the hollow parts of hollow rod (1).
2. sucker rod weighting tube according to claim 1 is characterized in that: described gripping mechanism (7) comprises chucking bar and spring, and described chucking bar links to each other with spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320118928 CN203129971U (en) | 2013-03-15 | 2013-03-15 | Weighting pipe for sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320118928 CN203129971U (en) | 2013-03-15 | 2013-03-15 | Weighting pipe for sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203129971U true CN203129971U (en) | 2013-08-14 |
Family
ID=48937962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320118928 Expired - Fee Related CN203129971U (en) | 2013-03-15 | 2013-03-15 | Weighting pipe for sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203129971U (en) |
-
2013
- 2013-03-15 CN CN 201320118928 patent/CN203129971U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204214593U (en) | Pressure ga(u)ge damper | |
| CN203129971U (en) | Weighting pipe for sucker rod | |
| CN204384845U (en) | Bottle opener | |
| CN204098834U (en) | A kind of oil tube anchor device | |
| CN203129969U (en) | Sucker rod | |
| CN203153886U (en) | Novel acne needle | |
| CN203925315U (en) | Sinker bar load transfer device | |
| CN202298442U (en) | Fixed end anchorage for tension steel strand | |
| CN201306132Y (en) | Tripping and eccentric wear preventing centralizer of oil well pump | |
| CN200946461Y (en) | Pumping rod weighting tube | |
| CN201517377U (en) | Centralizer of rod part of sucker rod | |
| CN203584328U (en) | Pumping unit well mouth centering device | |
| CN2813875Y (en) | Hydraulic antireleasing shock absorber | |
| CN203129970U (en) | Locking rupture-proof sucker rod | |
| CN203515540U (en) | Balance type mechanical ball injector | |
| CN205330590U (en) | Drilling engineering mechanical type shakes machine | |
| CN202007642U (en) | Wellhead sealing device for oil pumping unit | |
| CN202507101U (en) | Automatic workpiece claming device for rotary working table | |
| CN201756941U (en) | Mechanical releasing shallow-shaft tubing plug | |
| CN203394368U (en) | Plug-in type anti-drop device | |
| CN203547624U (en) | Expansion pipe scooping bottom plug with elastic claw | |
| CN202731764U (en) | Wax removal eccentric-wear-preventing type hollow sucker rod | |
| CN202645483U (en) | Compound anti-blockage device | |
| CN203962670U (en) | For the connecting rod of diesel engine transmission system | |
| CN204060541U (en) | The anti-tripping fastening devices of hydraulic sucker rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20140315 |