CN205422569U - A retaining ring for last centralizer of petroleum casing pipe - Google Patents
A retaining ring for last centralizer of petroleum casing pipe Download PDFInfo
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- CN205422569U CN205422569U CN201620144865.XU CN201620144865U CN205422569U CN 205422569 U CN205422569 U CN 205422569U CN 201620144865 U CN201620144865 U CN 201620144865U CN 205422569 U CN205422569 U CN 205422569U
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- ring
- screwed hole
- locating
- screens
- centimetres
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Abstract
The utility model discloses a retaining ring for last centralizer of petroleum casing pipe, including holding ring and screens ring, be equipped with a plurality of first screw holes on the rampart of holding ring, there is first bolt at a threaded hole through threaded connection, the length direction of first bolt is mutually perpendicular with the axial of holding ring, be equipped with a plurality of second screw holes on the rampart of screens ring, there is the second bolt at the 2nd threaded hole through threaded connection, the length direction of second bolt is mutually perpendicular with the axial of screens ring, two rings are evenly arranged from top to bottom around the circumferencial direction of screens ring to the second screw hole, evenly be equipped with a plurality of breachs at the lower limb of holding ring around the circumferencial direction of holding ring, a plurality of breachs are adjusted well with the second screw hole of screens ring lower part one by one each other. This retaining ring can be used to the centralizer of fixed various models, and convenient to use need not often change.
Description
Technical field
This utility model relates to oil drilling aid technical field.
Background technology
During oil exploration, first drilling well is carried out, need to insert the cannula into inside drilling well after drilling well is complete, then the space between outer wall and the inwall of drilling well of sleeve pipe is poured upper concrete, in order to make the interval between sleeve pipe and drilling well inwall uniform, sleeve pipe is made not glance off, the traditional method used is interpolation centralizer on sleeve pipe, just one is added every a segment distance, in order to prevent centralizer from sliding on sleeve pipe, need to arrange locating snap ring, but the size of locating snap ring is the most improper, its radius is either large or small, and the size of centralizer is the most different, the locating snap ring of a kind of model is merely able to adapt to the centralizer of a kind of model, range of application is narrower, locating snap ring need to often be changed by centralizer for different model, inconvenience very.
So it is relatively big to there is presently provided a kind of range of application, it is applicable to the locating snap ring of different model centralizer.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of locating snap ring of centralizer on petroleum casing pipe, and this locating snap ring can be used for fixing the centralizer of various model, easy to use, need not often change.
nullFor solving the problems referred to above，This utility model adopts the technical scheme that: a kind of locating snap ring of centralizer on petroleum casing pipe，This locating snap ring includes split type locating ring and screens ring，The radius of described locating ring is less than the radius of screens ring，The height of described locating ring is 5 centimetres to 10 centimetres，The height of described screens ring is 8 centimetres to 13 centimetres，The ring wall of described locating ring is provided with multiple first screwed hole，The first bolt it has been threaded connection in the first screwed hole，The length direction of described first bolt is the most perpendicular with locating ring，The ring wall of described screens ring is provided with multiple second screwed hole，The second bolt it has been threaded connection in the second screwed hole，The length direction of described second bolt is the most perpendicular with screens ring，Described second screwed hole is evenly arranged two circles up and down around the circumferencial direction of screens ring，Lower limb at locating ring is uniformly provided with multiple breach around the circumferencial direction of locating ring，Described multiple breach align one by one with the second screwed hole of circle under screens ring.
Preferably, the radius of described locating ring is 10 centimetres to 15 centimetres, and the radius of described screens ring is 18 centimetres to 30 centimetres.
Preferably, described first screwed hole is evenly arranged two circles the most up and down around the circumferencial direction of locating ring, second screwed hole of upper circle and the second screwed hole in the vertical direction of lower circle align the most up and down, first screwed hole of upper circle and the first spaced setting of screwed hole in the vertical direction of lower circle, the medial extremity of described breach is circular arc.
This utility model is brought to provide the benefit that, this locating snap ring can adapt to the centralizer of all size, effectively the centralizer of different model can be positioned on sleeve pipe, prevent it from sliding, using effect is good, fixation, it is to avoid the locating snap ring of a kind of model is merely able to the centralizer of fixing specific model, increase the scope of use, it is to avoid the replacing of repeatability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the schematic diagram under this utility model use state.
Wherein, 1, locating ring, 2, screens ring, the 3, first bolt, the 4, second bolt, 5, breach, 6, sleeve pipe, 7, centralizer.
Detailed description of the invention
nullWith detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings: as depicted in figs. 1 and 2，A kind of locating snap ring of centralizer on petroleum casing pipe，This locating snap ring includes split type locating ring 1 and screens ring 2，The radius of described locating ring 1 is less than the radius of screens ring 2，The height of described locating ring 1 is 5 centimetres to 10 centimetres，The height of described screens ring 2 is 8 centimetres to 13 centimetres，The ring wall of described locating ring 1 is provided with multiple first screwed hole，The first bolt 3 it has been threaded connection in the first screwed hole，The length direction of described first bolt 3 is the most perpendicular with locating ring 1，The ring wall of described screens ring 2 is provided with multiple second screwed hole，The second bolt 4 it has been threaded connection in the second screwed hole，The length direction of described second bolt 4 is the most perpendicular with screens ring 2，Described second screwed hole is evenly arranged two circles up and down around the circumferencial direction of screens ring 2，Lower limb at locating ring 1 is uniformly provided with multiple breach 5 around the circumferencial direction of locating ring 1，Described multiple breach 5 align one by one with the second screwed hole of 2 times circles of screens ring.
The radius of locating ring 1 is 10 centimetres to 15 centimetres, and the radius of described screens ring 2 is 18 centimetres to 30 centimetres.Described first screwed hole is evenly arranged two circles the most up and down around the circumferencial direction of locating ring 1, second screwed hole of upper circle and the second screwed hole in the vertical direction of lower circle align the most up and down, first screwed hole of upper circle and the first spaced setting of screwed hole in the vertical direction of lower circle, the medial extremity of described breach 5 is circular arc.
nullAs shown in Figure 2，In figure, centralizer 7 is enclosed within sleeve pipe 6，It is provided with this locating snap ring to prevent it from sliding，Wherein locating ring 1 is directly sleeved on sleeve pipe 6，By turn the first bolt 3，Locating ring 1 is made to be completely fixed on sleeve pipe 6 by the pushing and withstanding of the first bolt 3 end face，In the case of traditional method，This locating ring 1 is only set，But the radius size of centralizer 7 differs，If running into the bigger centralizer of internal diameter 7，Then this locating ring 1 does not has effect completely，Because the internal diameter of centralizer 7 is bigger，It can pass completely from locating ring 1，So this to be specially provided with screens ring 2，The radius of screens ring 2 is more than the radius of locating ring 1，As shown in the figure，Screens ring 2 is fixed with sleeve pipe 6 by the second bolt 4，Wherein the second bolt 4 of lower circle has withstood at the upper edge of centralizer 7 tightening when just，The convex eaves that sleeve pipe 6 carries withstands on the lower limb of centralizer 7，As long as so preventing centralizer 7 from moving up，And second bolt 4 of circle is through turning in the breach 5 having withstood on locating ring 1 afterwards on screens ring 2，Owing to locating ring 1 is fixing，So that screens ring 2 is also fixed from enough moving up，And then centralizer 7 is fixed，So the range of this locating snap ring is bigger，Even if the big model of centralizer 7 or a little model，The effect of stop can be played，As long as the internal diameter of centralizer 7 can be carried out using less than the external diameter of screens ring 2.
This utility model is brought to provide the benefit that, this locating snap ring can adapt to the centralizer of all size, effectively the centralizer of different model can be positioned on sleeve pipe, prevent it from sliding, using effect is good, fixation, it is to avoid the locating snap ring of a kind of model is merely able to the centralizer of fixing specific model, increase the scope of use, it is to avoid the replacing of repeatability.
Claims (3)
- null1. the locating snap ring of centralizer on petroleum casing pipe，It is characterized in that: this locating snap ring includes split type locating ring (1) and screens ring (2)，The radius of described locating ring (1) is less than the radius of screens ring (2)，The height of described locating ring (1) is 5 centimetres to 10 centimetres，The height of described screens ring (2) is 8 centimetres to 13 centimetres，The ring wall of described locating ring (1) is provided with multiple first screwed hole，The first bolt (3) it has been threaded connection in the first screwed hole，The length direction of described first bolt (3) is the most perpendicular with locating ring (1)，The ring wall of described screens ring (2) is provided with multiple second screwed hole，The second bolt (4) it has been threaded connection in the second screwed hole，The length direction of described second bolt (4) is the most perpendicular with screens ring (2)，Described second screwed hole is evenly arranged two circles up and down around the circumferencial direction of screens ring (2)，Lower limb at locating ring (1) is uniformly provided with multiple breach (5) around the circumferencial direction of locating ring (1)，Described multiple breach (5) align one by one with the second screwed hole of circle under screens ring (2).
- A kind of locating snap ring of centralizer on petroleum casing pipe the most according to claim 1, is characterized in that: the radius of described locating ring (1) is 10 centimetres to 15 centimetres, and the radius of described screens ring (2) is 18 centimetres to 30 centimetres.
- A kind of locating snap ring of centralizer on petroleum casing pipe the most according to claim 2, it is characterized in that: described first screwed hole is evenly arranged two circles the most up and down around the circumferencial direction of locating ring (1), second screwed hole of upper circle and the second screwed hole in the vertical direction of lower circle align the most up and down, first screwed hole of upper circle and the first spaced setting of screwed hole in the vertical direction of lower circle, the medial extremity of described breach (5) is circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620144865.XU CN205422569U (en) | 2016-02-26 | 2016-02-26 | A retaining ring for last centralizer of petroleum casing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620144865.XU CN205422569U (en) | 2016-02-26 | 2016-02-26 | A retaining ring for last centralizer of petroleum casing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205422569U true CN205422569U (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620144865.XU Active CN205422569U (en) | 2016-02-26 | 2016-02-26 | A retaining ring for last centralizer of petroleum casing pipe |
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| CN (1) | CN205422569U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963078A (en) * | 2020-10-23 | 2020-11-20 | 胜利油田固邦石油装备有限责任公司 | Limiting device of casing centralizer |
-
2016
- 2016-02-26 CN CN201620144865.XU patent/CN205422569U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963078A (en) * | 2020-10-23 | 2020-11-20 | 胜利油田固邦石油装备有限责任公司 | Limiting device of casing centralizer |
| CN111963078B (en) * | 2020-10-23 | 2020-12-15 | 胜利油田固邦石油装备有限责任公司 | Limiting device of casing centralizer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |