CN203321416U - Simple and easy intraductal shutoff instrument - Google Patents
Simple and easy intraductal shutoff instrument Download PDFInfo
- Publication number
- CN203321416U CN203321416U CN2013202600491U CN201320260049U CN203321416U CN 203321416 U CN203321416 U CN 203321416U CN 2013202600491 U CN2013202600491 U CN 2013202600491U CN 201320260049 U CN201320260049 U CN 201320260049U CN 203321416 U CN203321416 U CN 203321416U
- Authority
- CN
- China
- Prior art keywords
- pole
- center
- leather cup
- capping tools
- link
- 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
- 239000010985 leather Substances 0.000 claims abstract description 41
- 239000002184 metal Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 239000003129 oil well Substances 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 description 11
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
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- Closures For Containers (AREA)
Abstract
The utility model discloses a simple and easy shutoff instrument in pipe relates to a shutoff instrument in the oil well of the controllable snubbing serving in-process of oil well, and the shutoff instrument includes well core rod and the leather cup that can radially expand and rise, and well core rod lower extreme is equipped with the external screw thread, and well core rod passes through external screw thread and sucker rod threaded connection, and the leather cup is cavity and one end open-ended tube-shape, just the leather cup suit is on well core rod, and the leather cup is including link, the section of expanding and the open end that from top to bottom sets up, link and well core rod fixed connection, the open end towards well core rod's lower extreme. The utility model discloses simple structure does not adopt the slips structure, only utilizes the dead weight of sucker rod to realize self location and prevent to scurry on, and setting deblocking convenient operation.
Description
Technical field
The utility model relates to capping tools in a kind of oil well pipe, is a kind ofly in the controlled snubbing serving process of oil well, during dismounting sucker rod operation equipment, to realize the instrument to shutoff of short duration in oil pipe.
Background technology
At present, the controlled snubbing serving technology of oil well can reduce the pollution of well killing fluid to oil reservoir in operation process, improve operating efficiency, reduce operating cost, yet shutoff of short duration at first will managing during the controlled snubbing serving technological requirement of oil well dismounting sucker rod operation equipment, need capping tools in a kind of short simple and easy pipe simple to operate, consuming time.
In the pipe that existing Operating Pressure is used, the structure of capping tools is most for be set with slips and compression packing element outside center-pole.This employing slips supports, the capping tools of compression packing element sealing to set process as follows: after capping tools is lowered to oil well pipe, the expansion slips, make slip insert sting tight tube wall, thereby realize the location of capping tools in oil pipe; Cartridge expands because being subject to managing interior pressure, and by the space shutoff in oil pipe.Simultaneously due to the chucking between slips and tube wall, can effectively prevent capping tools on alter, guarantee job safety.There is a unsurmountable defect in above-mentioned prior art, because it has adopted the slips support, and slips generally comprises the complicated structure such as slips body, slip insert, connector, handle, and then it sets the operating process complexity with deblocking, the operation length consuming time, the inconvenient operation that finally cause the shutoff oil pipe, while being not suitable in controlled snubbing serving process the dismounting sucker rod operation, simple, the consuming time short technique of shutoff Job Operations of short duration in oil pipe is needed.
Also there is another defect in above-mentioned prior art, and the elastic deformation scope of cartridge is less, sealing range is little, and the scope of the internal diameter of the oil pipe that it is applicable is also less, can not meet the requirement of the different tubing string internal diameters in down-hole.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, the interior capping tools of simple and easy pipe that utilizes the sucker rod deadweight to realize location and prevent from altering.
It is large that another purpose of the present utility model is to provide a kind of sealing range, goes for the interior capping tools of simple and easy pipe of the different tubing string internal diameters in down-hole.
For achieving the above object, the utility model proposes capping tools in a kind of simple and easy pipe, wherein, described capping tools comprises center-pole and the leather cup of expanding radially, described center-pole lower end is provided with external screw thread, described center-pole is threaded with sucker rod by described external screw thread, described leather cup is the tubular of hollow and an end opening, and described leather cup is sleeved on described center-pole, described leather cup comprises link, expanding section and the openend arranged from top to bottom, described link is fixedly connected with described center-pole, and described openend is towards the lower end of described center-pole.
Capping tools in simple and easy pipe as above, wherein, described expanding section is with respect to described openend and described link hole enlargement, and described openend and described link all are the circular cone shape of hollow.
Capping tools in simple and easy pipe as above, wherein, the angle of the angle of the outline line of described openend outer wall and the axis of described center-pole between 30 degree between 60 degree.
Capping tools in simple and easy pipe as above, wherein, described leather cup is rubber cup.
Capping tools in simple and easy pipe as above, wherein, the top of described link is provided with a pressure cap, described pressure cap tool one has perforation chamber vertically and is set on described center-pole, the bottom in described perforation chamber is the hole enlargement shape and forms the draw-in groove of an annular that Open Side Down with the outer wall of described center-pole, and the top of described link is plugged in described draw-in groove.
Capping tools in simple and easy pipe as above, wherein, described pressure cap is threaded with described center-pole.
Capping tools in simple and easy pipe as above, wherein, the inside of described link is provided with a metal ring, described metal ring is in the periphery of described center-pole and be fixedly connected with the inwall of described link, described center-pole is provided with the limited step that a circle radially protrudes, and described metal ring is sticked on described limited step.
Capping tools in simple and easy pipe as above, wherein, described metal ring is iron hoop.
Capping tools in simple and easy pipe as above, wherein, the upper end of described center-pole is provided with a left-hand thread joint.
Capping tools in simple and easy pipe as above, wherein, described center-pole is connected with described left-hand thread joint by the left-hand thread screw thread.
Compared with prior art, the utlity model has following characteristics and advantage:
1, the utility model is simple in structure, does not adopt the slips structure, only utilizes the deadweight of sucker rod realize the location of self and prevent from altering, and it is convenient that it sets unsealing operation.
2, the utlity model has the leather cup structure of hollow, the leather cup of hollow can be compressed into minor diameter also can rise into by the demand that major diameter goes for the different tubing string internal diameters in down-hole outward.
The accompanying drawing explanation
Accompanying drawing described here is only for task of explanation, and is not intended to limit by any way the utility model scope of disclosure.In addition, the shape of each parts in figure and proportional sizes etc. are only schematically, for helping understanding of the present utility model, are not shape and the proportional sizes that specifically limits each parts of the utility model.Those skilled in the art, under instruction of the present utility model, can select various possible shapes and proportional sizes to implement the utility model as the case may be.
The structural representation that Fig. 1 is capping tools in the simple and easy pipe of the utility model.
Description of reference numerals:
The 1-center-pole; 11 external screw threads; 12 limited steps; 2 leather cups; The 21-openend; 22 links; 23 expanding sections; 24 metal rings; 3 pressure caps; 4 left-hand thread joints.
The specific embodiment
With the description of the utility model specific embodiment, can more be well understood to details of the present utility model by reference to the accompanying drawings.But the specific embodiment of the present utility model described here,, for explaining the purpose of this utility model, be only to restriction of the present utility model and can not be understood as by any way.Under instruction of the present utility model, the technician can conceive based on possible distortion arbitrarily of the present utility model, and these all should be regarded as belonging to scope of the present utility model.
Please refer to Fig. 1, is the structural representation of capping tools in the simple and easy pipe of the utility model.As shown in Figure 1, in the simple and easy pipe the utility model proposes, capping tools comprises center-pole 1 and leather cup 2, the lower end of center-pole 1 is provided with external screw thread 11, center-pole 1 is connected with sucker rod by external screw thread 11, leather cup 2 is the tubular of the hollow of an end opening, and expanding radially, leather cup 2 is sleeved on center-pole 1, leather cup 2 comprises openend 21, expanding section 23 and link 22, openend 21, expanding section 23 and link 22 set gradually from bottom to top, openend 21 is towards the lower end of center-pole 1, and link 22 is fixedly connected with center-pole 1.During use, the center-pole 1 of capping tools in simple and easy pipe is connected on sucker rod by external screw thread 11, then along with sucker rod is transferred in oil pipe, the sucker rod lower end finally is supported on the oil pipe bottom, realizes capping tools location in simple and easy pipe.Now, leather cup 2 itself is close on tube inner wall, has realized the sealing to oil pipe inside, and due to leather cup 2, Open Side Down itself is exactly the one-way sealing state, during operation, without the step again set, can complete sealing function; And, the inverted cone-shaped structure that leather cup 2 is the hollow that Open Side Down, the pressure of down-hole is larger, make leather cup better with contacting of pipe string internal wall, the sealing also more firm.Lower end due to capping tools in simple and easy pipe is connected with sucker rod simultaneously, with regard to the deadweight that utilizes sucker rod, has prevented from capping tools, altering in simple and easy pipe like this.After capping tools is transferred in oil pipe in simple and easy pipe, with regard to dismantled and assembled sucker rod operation equipment, needn't consider to manage the security incidents such as interior appearance is out of control.When the needs deblocking, above carry center-pole 1, now leather cup 2 moves upward together and has just completed deblocking, has automatically realized deblocking work.Capping tools is simple in structure in the simple and easy pipe the utility model proposes, on formation without the slips structure, only utilize the deadweight of sucker rod prevent capping tools on alter, greatly simplified the composition structure.Simultaneously, in the simple and easy pipe the utility model proposes, the leather cup 2 of capping tools relies on well to press and helps envelope, and down-hole pressure is larger, and the sealing of leather cup 2 is more firm.
Further, expanding section 23 is cylindrical and with respect to openend 21 and link 22 hole enlargements, openend 21 and link 22 all are truncated cone, openend 21 is the truncated cone of convergent from top to bottom, and link 22 is the truncated cone of flaring from top to bottom, the angle of the angle of the outline line of openend 21 outer walls and the axis of center-pole 1 is between 30 degree between 60 degree, and leather cup 2 is rubber cups.Because openend 21 is truncated cone and has steep-taper, while setting, leather cup 2 can be compressed into minor diameter, because leather cup 2 inside are hollow structure, can hold leather cup 2 and tighten up rear unnecessary rubber mass simultaneously, can make leather cup 2 smoothly by little aperture, after setting, leather cup 2 also can rise into by the major diameter structure outward, so the sealing range of leather cup 2 is large, goes for the needs of the different tubing string internal diameters in down-hole.
Further, pressure cap 3 with a perforation chamber vertically is set in the periphery of center-pole 1 and is fixedly connected with center-pole 1, the bottom in the perforation chamber of pressure cap 3 is the hole enlargement shape and becomes an annular slot that Open Side Down with the outer wall of center-pole 1, the top of link 22 is plugged in above-mentioned draw-in groove, to realize being fixedly connected with of leather cup 2 and center-pole 1.
Further, pressure cap 3 is threaded connection with center-pole 1, so just can realize removably connecting of leather cup 2 and center-pole 1, in use, when leather cup 2 causes sealing effectiveness bad because of wearing and tearing, can change in time, to guarantee only normal use of capping tools, simultaneously, the operation of above-mentioned Renewal process is very easy, also greatly reduces site operation personnel's labour intensity.
Further, the inside of link 22 is provided with a metal ring 24, and metal ring 24 is placed in the periphery of center-pole 1, and metal ring 24 is fixedly connected with by sulfuration with the inwall of link 22, center-pole 1 is provided with the limited step 12 that a circle radially protrudes, and metal ring 24 is sticked on limited step 12.Limited step 12 provide support upwards can to leather cup 2, to prevent that leather cup 2 comes off from center-pole 1 in the upper process of carrying center-pole 1.Metal ring 24 can be iron hoop or other known metal material.Further, the upper end of center-pole 1 is provided with a left-hand thread joint 4, and left-hand thread joint 4 is connected with center-pole 1 by the left-hand thread regular screw threads.When the needs deblocking, center-pole 1 is connected with left-hand thread joint 4, just automatically realized deblocking work by carrying center-pole 1 on left-hand thread joint 4.
Capping tools utilizes the sucker rod deadweight to be supported, alter on anti-capping tools in the simple and easy pipe the utility model proposes, utilize leather cup 2 to be sealed, by on carry center-pole 1 and realize deblocking, it is simple in structure, easy to operate, sealing range large, strong adaptability, has met the needs of controlled snubbing serving technique.
Detailed explanation for the respective embodiments described above, its purpose only is the utility model is made an explanation, so that can understand better the utility model, but, it is to restriction of the present utility model that these descriptions can not be construed to any reason, particularly, each feature of describing in different embodiments is any combination mutually also, thereby form other embodiments, except clearly contrary description is arranged, these features should be understood to can be applied in any one embodiment, and also not only are confined to described embodiment.
Claims (10)
1. capping tools in a simple and easy pipe, it is characterized in that, described capping tools comprises center-pole and the leather cup of expanding radially, described center-pole lower end is provided with external screw thread, described center-pole is threaded with sucker rod by described external screw thread, described leather cup is the tubular of hollow and an end opening, and described leather cup is sleeved on described center-pole, described leather cup comprises link, expanding section and the openend arranged from top to bottom, described link is fixedly connected with described center-pole, and described openend is towards the lower end of described center-pole.
2. capping tools in simple and easy pipe as claimed in claim 1, is characterized in that, described expanding section is with respect to described openend and described link hole enlargement, and described openend and described link all are the circular cone shape of hollow.
3. capping tools in simple and easy pipe as claimed in claim 2, is characterized in that, the angle of the angle of the outer contour of described openend outer wall and the axis of described center-pole between 30 degree between 60 degree.
4. capping tools in simple and easy pipe as claimed in claim 1, is characterized in that, described leather cup is rubber cup.
5. capping tools in simple and easy pipe as claimed in claim 1, it is characterized in that, the top of described link is provided with a pressure cap, described pressure cap tool one has perforation chamber vertically and is set on described center-pole, the bottom in described perforation chamber is the hole enlargement shape and forms the draw-in groove of an annular that Open Side Down with the outer wall of described center-pole, and the top of described link is plugged in described draw-in groove.
6. capping tools in simple and easy pipe as claimed in claim 5, is characterized in that, described pressure cap is threaded with described center-pole.
7. capping tools in simple and easy pipe as described as any one in claim 1 to 6, it is characterized in that, the inside of described link is provided with a metal ring, described metal ring is in the periphery of described center-pole and be fixedly connected with the inwall of described link, described center-pole is provided with the limited step that a circle radially protrudes, and described metal ring is sticked on described limited step.
8. capping tools in simple and easy pipe as claimed in claim 7, is characterized in that, described metal ring is iron hoop.
9. capping tools in simple and easy pipe as claimed in claim 1, is characterized in that, the upper end of described center-pole is provided with a left-hand thread joint.
10. capping tools in simple and easy pipe as claimed in claim 9, is characterized in that, described center-pole is connected with described left-hand thread joint by the left-hand thread screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202600491U CN203321416U (en) | 2013-05-14 | 2013-05-14 | Simple and easy intraductal shutoff instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202600491U CN203321416U (en) | 2013-05-14 | 2013-05-14 | Simple and easy intraductal shutoff instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203321416U true CN203321416U (en) | 2013-12-04 |
Family
ID=49660779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202600491U Expired - Fee Related CN203321416U (en) | 2013-05-14 | 2013-05-14 | Simple and easy intraductal shutoff instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203321416U (en) |
-
2013
- 2013-05-14 CN CN2013202600491U patent/CN203321416U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20210514 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |