CN203847039U - Well head protective device - Google Patents
Well head protective device Download PDFInfo
- Publication number
- CN203847039U CN203847039U CN201420271774.3U CN201420271774U CN203847039U CN 203847039 U CN203847039 U CN 203847039U CN 201420271774 U CN201420271774 U CN 201420271774U CN 203847039 U CN203847039 U CN 203847039U
- Authority
- CN
- China
- Prior art keywords
- chuck
- polylith
- steel plate
- junction steel
- tree
- 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
Abstract
The utility model discloses a well head protective device. The device comprises a top ring (1), a plurality of connection steel plates (2), a clamp disc (3) and a plurality of triangle support elements (5). The two ends of each connection steel plate (2) are fixed between the top ring (1) and the clamp disc (3) through bolts. All the plurality of connection steel plates (2) are vertical to the top ring (1) and the clamp disc (3). The center of the clamp disc (3) is provided with a locking ring (4). The outwall of the locking ring (4) is uniformly fixed by the triangle support elements (5). The triangle support elements (5) are vertically fixed to the upper surface of the clamp disc (3). With the above structure, the well head makes improvements in radial load, stretching load under the sleeve pipe weight effects, and downhole pressure load, so as to make no deformation, ensure downhole tool to pass, and improve oil field productivity and economic benefits.
Description
Technical field
The utility model relates to drilling well field, is specifically related to tree-protector.
Background technology
In oil, gas drilling, conventionally install and be used for controlling gas, liquid (oil, water etc.) fluid pressure and direction at well head, for suspension sleeve, oil pipe and seal oil pipe and the device of sleeve pipe and each layer of sleeve pipe annular space.And mainly contain the radial load of blank step effect, tensile load and the borehole pressure load of casing wt effect for the suffered load of casing suspension device.Casing suspension device should be able to bear hung casing string weight, is just unlikely to produce necking down distortion and affects passing through of downhole tool.Existing wellhead assembly is not in place what do aspect the tensile load of radial load, casing wt effect and borehole pressure load, in use easily produces passing through of deformation effect downhole tool.For promoting In Oil Field Exploration And Development to produce, well logging during, improves field produces rate and economic benefit, extremely urgent to the improvement of wellhead assembly.
Utility model content
The utility model has overcome the deficiencies in the prior art; tree-protector is provided; this wellhead assembly is all getting a promotion aspect the tensile load of radial load, casing wt effect and borehole pressure load; make this device not yielding; ensure passing through of downhole tool, improve field produces rate and economic benefit.
For solving above-mentioned technical problem, the utility model is by the following technical solutions: tree-protector, comprise collar, polylith junction steel plate, chuck and polylith gusseted part, described polylith junction steel plate two ends are bolted on respectively between collar and chuck, and polylith junction steel plate is all simultaneously perpendicular to collar and chuck; The center of described chuck is provided with retaining ring, and the outer wall of retaining ring adopts polylith gusseted part evenly to fix, and polylith gusseted part is all vertically fixed on the upper surface of chuck.Retaining ring is set on chuck sleeve pipe approach axis is controlled, and retaining ring periphery arrange polylith gusseted plate and polylith junction steel plate support fastening, winding shaft internal pressure load.The collar arranging is that rigid material is made, and bottom utilizes junction steel plate to support, and between junction steel plate and collar, utilizes bolt to be connected, and junction steel plate also can be changed to it radial load of this device of guarantee after using one section time.Between each junction steel plate, there is the gap of certain width, can improve the tensile load of its weight effect, make this device not yielding, improve productivity ratio and the economic benefit in oil field.
Described chuck bottom even arranges multiple grooves.Increase bottom friction.
Described retaining ring is clamped in the circular cylindrical cavity that polylith junction steel plate surrounds.Restriction is supported in restriction mutually mutually.
On the upper surface of described chuck, be also provided with multiple set bolts.Chuck can be fixedly secured.
The gap width forming between adjacent two junction steel plates equates.
Described chuck is octagon.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model adopts this structure, and wellhead assembly, all getting a promotion aspect the tensile load of radial load, casing wt effect and borehole pressure load, makes this device not yielding, ensures passing through of downhole tool, improves field produces rate and economic benefit.
2, in the bottom of chuck, multiple grooves are set, can increase bottom friction, and be all connected and fixed by bolt between junction steel plate wherein and chuck and collar, also can change it when junction steel plate wearing and tearing, ensure its bearing capacity.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure, Reference numeral is expressed as: 1, collar; 2, junction steel plate; 3, chuck; 4, retaining ring; 5, gusseted part; 6, set bolt; 7, groove.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further elaborated, embodiment of the present utility model is not limited to this.
Embodiment:
As shown in Figure 1, the utility model comprises collar 1, polylith junction steel plate 2, chuck 3 and polylith gusseted part 5, and chuck 3 bottom evens arrange multiple grooves 7, and chuck 3 is octagon, is also provided with multiple set bolts 6 on the upper surface of chuck 3.Polylith junction steel plate 2 two ends of the present embodiment are bolted on respectively between collar 1 and chuck 3, and polylith junction steel plate 2 is all simultaneously perpendicular to collar 1 and chuck 3.The center of the chuck 3 of the present embodiment is provided with retaining ring 4, and the outer wall of retaining ring 4 adopts polylith gusseted part 5 evenly to fix, and polylith gusseted part 5 is all vertically fixed on the upper surface of chuck 3.Retaining ring 4 is wherein clamped in the circular cylindrical cavity that polylith junction steel plate 2 surrounds, and the gap width forming between adjacent two junction steel plates 2 equates.
Retaining ring is set on chuck sleeve pipe approach axis is controlled, and retaining ring periphery arrange polylith gusseted plate and polylith junction steel plate support fastening, winding shaft internal pressure load.The collar arranging is that rigid material is made, and bottom utilizes junction steel plate to support, and between junction steel plate and collar, utilizes bolt to be connected, and junction steel plate damages the radial load that also can change to it this device of guarantee after using one section time.Between each junction steel plate, there is the gap of certain width, can improve the tensile load of its weight effect, make this device not yielding, improve productivity ratio and the economic benefit in oil field.
Just can realize as mentioned above this utility model.
Claims (6)
1. tree-protector, it is characterized in that: comprise collar (1), polylith junction steel plate (2), chuck (3) and polylith gusseted part (5), described polylith junction steel plate (2) two ends are bolted on respectively between collar (1) and chuck (3), and polylith junction steel plate (2) is all simultaneously perpendicular to collar (1) and chuck (3); The center of described chuck (3) is provided with retaining ring (4), and the outer wall of retaining ring (4) adopts polylith gusseted part (5) evenly to fix, and polylith gusseted part (5) is all vertically fixed on the upper surface of chuck (3).
2. tree-protector according to claim 1, is characterized in that: described chuck (3) bottom even arranges multiple grooves (7).
3. tree-protector according to claim 1, is characterized in that: described retaining ring (4) is clamped in the circular cylindrical cavity that polylith junction steel plate (2) surrounds.
4. tree-protector according to claim 1, is characterized in that: on the upper surface of described chuck (3), be also provided with multiple set bolts (6).
5. tree-protector according to claim 1, is characterized in that: the gap width forming between adjacent two junction steel plates (2) equates.
6. tree-protector according to claim 1, is characterized in that: described chuck (3) is octagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420271774.3U CN203847039U (en) | 2014-05-27 | 2014-05-27 | Well head protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420271774.3U CN203847039U (en) | 2014-05-27 | 2014-05-27 | Well head protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847039U true CN203847039U (en) | 2014-09-24 |
Family
ID=51560073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420271774.3U Expired - Fee Related CN203847039U (en) | 2014-05-27 | 2014-05-27 | Well head protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847039U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018801A (en) * | 2014-05-27 | 2014-09-03 | 成都来宝石油设备有限公司 | Well mouth protecting mechanism |
| CN106978976A (en) * | 2016-01-19 | 2017-07-25 | 中国石油化工股份有限公司 | A kind of thick oil horizontal well note adopts integral process tube rod post and method |
-
2014
- 2014-05-27 CN CN201420271774.3U patent/CN203847039U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018801A (en) * | 2014-05-27 | 2014-09-03 | 成都来宝石油设备有限公司 | Well mouth protecting mechanism |
| CN104018801B (en) * | 2014-05-27 | 2016-04-20 | 成都来宝石油设备有限公司 | Wellhead protecting mechanism |
| CN106978976A (en) * | 2016-01-19 | 2017-07-25 | 中国石油化工股份有限公司 | A kind of thick oil horizontal well note adopts integral process tube rod post and method |
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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: 20140924 Termination date: 20150527 |
|
| EXPY | Termination of patent right or utility model |