CN2603193Y - Drop-proof slips for oil pipe - Google Patents
Drop-proof slips for oil pipe Download PDFInfo
- Publication number
- CN2603193Y CN2603193Y CN 03201191 CN03201191U CN2603193Y CN 2603193 Y CN2603193 Y CN 2603193Y CN 03201191 CN03201191 CN 03201191 CN 03201191 U CN03201191 U CN 03201191U CN 2603193 Y CN2603193 Y CN 2603193Y
- Authority
- CN
- China
- Prior art keywords
- slips
- pipe
- centralizer
- oil
- oil pipe
- 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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- Earth Drilling (AREA)
Abstract
The utility model relates to a drop-proof slips for oil pipes, which is used on petroleum for drilling wells and preventing pipe columns of oil and water wells from dropping in the wells. The utility model comprises a cone upper connecting head 1, a track central pipe 2, a supporting slips 3 and an oil pipe centralizer 4, wherein the cone upper connecting head 1 and the track central pipe 2 are connected, a slips centralizer 4 is installed on the track central pipe 2, and the supporting slips 3 and the oil pipe centralizer 4 are connected into a whole. The track central pipe 2 is provided with a track groove. The cone upper connecting head 1 is a cone shape. The inner part of the slips centralizer 4 is provided with a slip ring pin which is arranged in the track groove on the track central pipe 2 and can be used for effectively preventing the pipe columns from dropping the wells. The utility model has the advantages of simple structure and convenient operation.
Description
Relate to the field
The utility model relates to the oil-water well tubing string that prevents that uses on a kind of oil drilling and falls the protective device of well, specifically, is the anti-lost slips of oil pipe.
Background technology
At present, each oil field is at drillng operation, and especially the dark oil-water well flow string of centering does not have effectively measure and equipment to be taken precautions against in process of production owing to the oil pipe that a variety of causes causes falls well.
Technology contents
The purpose of this utility model is to provide a kind of and can effectively avoids tubing string to fall well, and simple in structure, the anti-lost slips of easy to operate oil pipe.
The utility model is achieved in that and comprises cone top connection 1, orbit centre pipe 2, supporting slip 3, tubing centrilizer 4, cone top connection 1 is connected with orbit centre pipe 2, slips centralizer 4 is installed on the orbit centre pipe 2, and supporting slip 3 is connected as one with tubing centrilizer 4.
The utility model also adopts following technical scheme:
On the orbit centre pipe 2 rail groove is arranged.
Cone top connection 1 is cone-shaped.
The slip ring pin is arranged, in the rail groove of this slip ring pin on orbit centre pipe 2 in the slips centralizer 4.
Of the present utility modelly be a little: can effectively avoid tubing string to fall well, and simple in structure, easy to operate.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is the track expanded view of orbit centre pipe.
Concrete enforcement
As shown in Figure 1, cone top connection 1 top can directly connect with running string, its underpart is connected with orbit centre pipe 2, the cone of top connection 1 is used for spreading supporting slip 3, orbit centre pipe 2 bottoms connect floral tube or plug, process rail groove (as shown in Figure 2) on the body of orbit centre pipe 2, slips centralizer 4 is installed on the body of orbit centre pipe 2, the slip ring pin moves on the rail groove of central tube 2 in the slips centralizer 4, supporting slip 3 connects as one with slips centralizer 4, and is synchronized with the movement with centralizer 4.
The slip ring pin is in the top dead-centre that orbit centre pipe 2 tracks are lacked groove all the time in the slips centralizer 4 when this device is gone into the well with tubing string, slips can not open and with the tubing string G.I.H, on the precalculated position, the upper lifting pipe post, by the friction of slips centralizer 4 with sleeve pipe, centralizer 4 is motionless, the slip ring pin moves to central tube 2 rail groove elongated slot bottom dead centres, at this moment, slips does not open, but when tubing string is descending, centralizer 4 slips are up relatively, cone top connection 1 struts slips, and slips is stuck in that oil pipe stops to move downward on the casing wall, thereby has guaranteed that oil pipe can not fall in the well.
Claims (5)
1. the anti-lost slips of oil pipe, comprise cone top connection (1), orbit centre pipe (2), supporting slip (3), tubing centrilizer (4), it is characterized in that: cone top connection (1) is connected with orbit centre pipe (2), slips centralizer (4) is installed on the orbit centre pipe (2), and supporting slip (3) is connected as one with tubing centrilizer (4).
2. the anti-lost slips of oil pipe according to claim 1 is characterized in that: the orbit centre pipe has rail groove on (2).
3. the anti-lost slips of oil pipe according to claim 1 is characterized in that: cone top connection (1) is cone-shaped.
4. the anti-lost slips of oil pipe according to claim 1 is characterized in that: the slips centralizer has the slip ring pin in (4), in the rail groove of this slip ring pin on orbit centre pipe (2).
5. the anti-lost slips of oil pipe according to claim 1 is characterized in that: orbit centre pipe (2) bottom is connected to floral tube or plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03201191 CN2603193Y (en) | 2003-01-17 | 2003-01-17 | Drop-proof slips for oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03201191 CN2603193Y (en) | 2003-01-17 | 2003-01-17 | Drop-proof slips for oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2603193Y true CN2603193Y (en) | 2004-02-11 |
Family
ID=34157466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03201191 Expired - Lifetime CN2603193Y (en) | 2003-01-17 | 2003-01-17 | Drop-proof slips for oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2603193Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101307681B (en) * | 2008-07-08 | 2012-04-25 | 黄健 | Oil conduit falling preventer |
-
2003
- 2003-01-17 CN CN 03201191 patent/CN2603193Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101307681B (en) * | 2008-07-08 | 2012-04-25 | 黄健 | Oil conduit falling preventer |
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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: 20130117 Granted publication date: 20040211 |