CN203905845U - Novel casing pipe centralizer positioning ring - Google Patents
Novel casing pipe centralizer positioning ring Download PDFInfo
- Publication number
- CN203905845U CN203905845U CN201420234033.8U CN201420234033U CN203905845U CN 203905845 U CN203905845 U CN 203905845U CN 201420234033 U CN201420234033 U CN 201420234033U CN 203905845 U CN203905845 U CN 203905845U
- Authority
- CN
- China
- Prior art keywords
- ring body
- locating
- locating hole
- positioning
- elastic rubber
- 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
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- Earth Drilling (AREA)
Abstract
The utility model relates to a novel casing pipe centralizer positioning ring, which comprises a positioning ring body, an elastic rubber gasket, positioning pins and convex lugs, wherein the positioning ring body comprises a left ring body and a right ring body; positioning holes are respectively formed in the left ring body and the right ring body; the positioning pins pass through the positioning holes for connecting the left ring body and the right body; the other end, opposite to the positioning holes, on the right ring body is provided with 2 to 6 convex lugs; the other end, corresponding to the positioning holes, on the left ring body is provided with grooves with the same number as the convex lugs; the shape of the grooves is matched with the shape of the convex lugs; the convex lugs and the grooves are arranged on the corresponding ring body at equal intervals; the elastic rubber gasket is arranged on an inner ring of the positioning ring body; and the thickness of the elastic rubber gasket is 5 to 15mm. When the positioning ring provided by the utility model is adopted, the manufacturing is simple; firmness and durability are realized; the positioning force is strong; and the well drilling and well cementation quality can be reliably ensured.
Description
Technical field
The utility model relates to the stopping means in oil gas drilling field, is specifically related to a kind of new casing centralizer locating ring.
Background technology
The mode that existing locating ring or clip adopt screw to press closer conventionally fixes casing stabbing board, and this kind of locating ring easily produces certain damage to sleeve pipe itself; Another mode is by bonding agent, two semicircle steel loops to be bonded on sleeve pipe, then is wound around bonding reinforcing with thin wire and glass fabric and forms, and the axial bearing capacity of this kind of locating ring is large, but adhesive linkage impact strength is low, makes an excuse easily aging.Therefore, be necessary to develop a kind of novel locating ring, can effectively make casing stabbing board be arranged on without restriction precalculated position, and have advantages of manufacture simple, firm and durable, detent force is large.
Summary of the invention
The utility model is intended to provide a kind of new casing centralizer locating ring, and to solve the deficiencies in the prior art, the technical problems to be solved in the utility model is achieved through the following technical solutions.
A kind of new casing centralizer locating ring, comprises locating ring body, elastic rubber fitting, alignment pin, lug;
Described locating ring body comprises left ring body and right ring body, described left and right ring body is semicircular ring body, and be equipped with locating hole on left and right ring body, described alignment pin is connected left and right ring body through locating hole, thereby form a complete locating ring;
Described locating hole is blind hole, is interference fit between alignment pin and locating hole; Distance between locating hole right side on locating hole left side and right ring body on described left ring body is more than or equal to the length of alignment pin; Distance between locating hole left side on locating hole right side and right ring body on described left ring body is less than the length of alignment pin;
On described right ring body, the other end relative with locating hole is provided with 2-6 lug, on described left ring body, the other end relative with locating hole is provided with the groove identical with lug quantity, the shape of described groove and the shape of lug are suitable, and described lug, groove arrange in corresponding ring body equal intervals;
Described locating ring body inner ring is provided with a circle elastic rubber fitting, and the thickness of elastic rubber fitting is 5-15mm.
Further, the material of described elastic rubber fitting is polyisoprene rubber, and its thickness is 8mm.
Adopt locating ring of the present utility model, make simple, firm and durable, detent force is large, can Reliable guarantee well drilling and cementing quality.By being used in conjunction with of alignment pin and locating ring, and being used in conjunction with of lug and groove, can make this locating ring be applicable to the casing stabbing board of different size; Friction, buffering extruding force can be effectively increased by elastic rubber fitting is set, the centralizer of effective supporting sleeve centralizer, raising casing stabbing board can be reached.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Reference numeral in accompanying drawing is followed successively by: 1, left ring body, 2, right ring body, 3, elastic rubber fitting, 4, alignment pin, 5, locating hole, 6, lug, 7, groove.
Detailed description of the invention
Further set forth design feature of the present utility model below in conjunction with accompanying drawing and specific embodiment.
A kind of new casing centralizer locating ring, comprises locating ring body, elastic rubber fitting 3, alignment pin 4, lug 6; Described locating ring body comprises left ring body 1 and right ring body 2, described left and right ring body is semicircular ring body, and on left and right ring body, be equipped with locating hole 5, described alignment pin 4 is connected left and right ring body through locating hole, thereby forms a complete locating ring; Described locating hole is blind hole, is interference fit between alignment pin and locating hole; Distance between locating hole right side on locating hole left side and right ring body on described left ring body is more than or equal to the length of alignment pin; Distance between locating hole left side on locating hole right side and right ring body on described left ring body is less than the length of alignment pin; On described right ring body, the other end relative with locating hole is provided with 2-6 lug 6, on described left ring body, the other end relative with locating hole is provided with the groove identical with lug quantity 7, the shape of described groove and the shape of lug are suitable, and described lug, groove arrange in corresponding ring body equal intervals; Described locating ring body inner ring is provided with a circle elastic rubber fitting, and the thickness of elastic rubber fitting is 5-15mm.
Referring to Fig. 1, in the present embodiment, the material of elastic rubber fitting is polyisoprene rubber, and its thickness is 8mm.
Adopt locating ring of the present utility model, make simple, firm and durable, detent force is large, can Reliable guarantee well drilling and cementing quality.By being used in conjunction with of alignment pin and locating ring, and being used in conjunction with of lug and groove, can make this locating ring be applicable to the casing stabbing board of different size; Friction, buffering extruding force can be effectively increased by elastic rubber fitting is set, the centralizer of effective supporting sleeve centralizer, raising casing stabbing board can be reached.
The above embodiment has only been expressed a kind of embodiment of the present utility model, but can not therefore be interpreted as the restriction to the utility model scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement.These all belong to protection domain of the present utility model.
Claims (2)
1. a new casing centralizer locating ring, comprises locating ring body, elastic rubber fitting, alignment pin, lug; It is characterized in that:
Described locating ring body comprises left ring body and right ring body, described left and right ring body is semicircular ring body, and be equipped with locating hole on left and right ring body, described alignment pin is connected left and right ring body through locating hole, thereby form a complete locating ring;
Described locating hole is blind hole, is interference fit between alignment pin and locating hole; Distance between locating hole right side on locating hole left side and right ring body on described left ring body is more than or equal to the length of alignment pin; Distance between locating hole left side on locating hole right side and right ring body on described left ring body is less than the length of alignment pin;
On described right ring body, the other end relative with locating hole is provided with 2-6 lug, on described left ring body, the other end relative with locating hole is provided with the groove identical with lug quantity, the shape of described groove and the shape of lug are suitable, and described lug, groove arrange in corresponding ring body equal intervals; Described locating ring body inner ring is provided with a circle elastic rubber fitting, and the thickness of elastic rubber fitting is 5-15mm.
2. a kind of new casing centralizer locating ring according to claim 1, is characterized in that: the material of described elastic rubber fitting is polyisoprene rubber, and its thickness is 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420234033.8U CN203905845U (en) | 2014-05-08 | 2014-05-08 | Novel casing pipe centralizer positioning ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420234033.8U CN203905845U (en) | 2014-05-08 | 2014-05-08 | Novel casing pipe centralizer positioning ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203905845U true CN203905845U (en) | 2014-10-29 |
Family
ID=51780134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420234033.8U Expired - Fee Related CN203905845U (en) | 2014-05-08 | 2014-05-08 | Novel casing pipe centralizer positioning ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203905845U (en) |
-
2014
- 2014-05-08 CN CN201420234033.8U patent/CN203905845U/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: 20141029 Termination date: 20150508 |
|
| EXPY | Termination of patent right or utility model |