CN203499619U - Novel suspension device of surface sleeve pipe - Google Patents
Novel suspension device of surface sleeve pipe Download PDFInfo
- Publication number
- CN203499619U CN203499619U CN201320651234.3U CN201320651234U CN203499619U CN 203499619 U CN203499619 U CN 203499619U CN 201320651234 U CN201320651234 U CN 201320651234U CN 203499619 U CN203499619 U CN 203499619U
- Authority
- CN
- China
- Prior art keywords
- slip
- head body
- sleeve pipe
- slip spider
- casing head
- 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
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 241000239290 Araneae Species 0.000 claims description 38
- 239000003208 petroleum Substances 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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Abstract
The utility model provides a novel suspension device of a surface sleeve pipe, and relates to petroleum drilling wellhead equipment. The novel suspension device comprises a sleeve pipe head body, a sealing device, a slip insert, a slip bowl and connection bolts. The slip bowl is annular and provided with a plurality of through holes, the lower end face of the sleeve pipe head body is provided with threaded holes matched with the through holes in the slip bowl, and the sleeve pipe head body is connected with the slip bowl through the connection bolts. The inner side face of the slip bowl is in a stepped wedge shape, a gap is formed in the slip insert in the axial direction and in an unsealed annular shape, and the outer side of the slip insert is in a stepped wedge shape to be matched with the inner side of the slip bowl. The sealing device is arranged between the sleeve pipe head body and the surface sleeve pipe, and the sealing device is an elastic sealing ring. The novel suspension device is simple in structure and convenient to install, and cost is lowered.
Description
Technical field
The utility model relates to a kind of petroleum drilling and mining wellhead assembly, is a kind of suspension arrangement of novel surface pipe specifically.
Background technology
Casing head is connected with surface pipe and is divided into two kinds of forms both at home and abroad: be threaded and be connected with slips, the connecting thread being threaded is petroleum casing screw.But be threaded, have different size, the screw thread of different size cannot be general, and every kind of casing threads need design corresponding casing head, and versatility is poor, and petroleum casing screw belongs to major diameter fine pitch taper thread, the easy thread gluing of connection procedure.
It is by the top of the slip spider casing head body interior that is placed in that old-fashioned slips connects, the bottom of casing head body is provided with the round platform matching with slip spider, the lower end of slip spider is provided with overhanging boss, and boss is provided with through hole, and boss forms bolt with the bottom of casing head body and is connected.Casing head body will lengthen 300mm left and right than the casing head body of thread connecting mode, has greatly increased difficulty of processing and cost.And it is inner that slip spider inserts casing head, because reasons in structure slip spider supporting surface is thin, hold in process and cause slip spider to rise outward, on slip spider insertion casing head inside, move process need and overcome very large frictional force, very effort is installed in scene, also affected clamping reliability.
Utility model content
The shortcoming existing in order to overcome above-mentioned prior art, the purpose of this utility model is to provide a kind of suspension arrangement of novel surface pipe, and it is simple in structure, easy for installation, has reduced cost.
In order to address the above problem, the utility model is by the following technical solutions: a kind of suspension arrangement of novel surface pipe, comprise casing head body, sealing device, slip insert, slip spider and connecting bolt, it is characterized in that, described slip spider is circular, slip spider is provided with a plurality of through holes, described casing head body lower surface is provided with the screwed hole matching with through hole on slip spider, between casing head body and slip spider, by connecting bolt, be connected, the medial surface of slip spider is step wedge shape, described slip insert has a gap vertically, form inc circular, the outside of slip insert is the step wedge shape matching with slip spider inner side.
Further: between described casing head body and surface pipe, be provided with sealing device, described sealing device is elastic seal ring.
The beneficial effects of the utility model are:
1, casing head body is compared old-fashioned slips connection and has been saved the round platform matching with slip spider, length is compared when old-fashioned slips connects and shortened 300mm left and right, has reduced difficulty of processing and cost.
2, slip spider height and maximum gauge do not change, but shape becomes simple, and easily processing, has reduced cost.
3, because slip spider no longer inserts casing head body interior, slip spider cylindrical and casing head can be made to the same diameter, greatly improved slip spider intensity, install and become quick, and be not prone to because of slip spider and the violent accident that rubs and cause of casing head body.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described further:
Fig. 1 is front view of the present utility model;
In figure: 1 casing head body, 2 connecting bolts, 3 slip inserts, 4 slip spiders, 5 elastic seal rings, 6 surface pipes.
The specific embodiment
As shown in Figure 1, a kind of suspension arrangement of novel surface pipe, comprise casing head body 1, sealing device, slip insert 3, slip spider 4 and connecting bolt 2, described slip spider 4 is circular, slip spider 4 is provided with a plurality of through holes, described casing head body 1 lower surface is provided with the screwed hole matching with through hole on slip spider 4, between casing head body 1 and slip spider 4, by connecting bolt 2, be connected, the medial surface of slip spider 4 is step wedge shape, described slip insert 3 has a gap vertically, form inc circular, the outside of slip insert 3 is the step wedge shape matching with slip spider 4 inner sides.Between described casing head body 1 and surface pipe 6, be provided with sealing device, described sealing device is elastic seal ring 5.
When using, first slip insert 3 is enclosed within to the outside of surface pipe 6, then slip spider 4 is sleeved on to the outside of slip insert 3, by connecting bolt 2, casing head body 1 is connected with slip spider 1, then evenly tighten connecting bolt 2, the step wedge shape that makes the step wedge shape of the medial surface of slip spider 4 push gradually slip insert 3 outsides, the end play of slip insert 3 is progressively dwindled, until hold tightly, blocks surface pipe 6, and surface pipe 6 and casing head body 1 are connected as a single entity.
Claims (2)
1. the suspension arrangement of a novel surface pipe, comprise casing head body, sealing device, slip insert, slip spider and connecting bolt, it is characterized in that, described slip spider is circular, slip spider is provided with a plurality of through holes, described casing head body lower surface is provided with the screwed hole matching with through hole on slip spider, between casing head body and slip spider, by connecting bolt, be connected, the medial surface of slip spider is step wedge shape, described slip insert has a gap vertically, form inc circular, the outside of slip insert is the step wedge shape matching with slip spider inner side.
2. the suspension arrangement of a kind of novel surface pipe according to claim 1, is characterized in that, between described casing head body and surface pipe, is provided with sealing device, and described sealing device is elastic seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320651234.3U CN203499619U (en) | 2013-10-22 | 2013-10-22 | Novel suspension device of surface sleeve pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320651234.3U CN203499619U (en) | 2013-10-22 | 2013-10-22 | Novel suspension device of surface sleeve pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203499619U true CN203499619U (en) | 2014-03-26 |
Family
ID=50330608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320651234.3U Expired - Lifetime CN203499619U (en) | 2013-10-22 | 2013-10-22 | Novel suspension device of surface sleeve pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203499619U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165036A (en) * | 2014-08-12 | 2014-11-26 | 陈菊芳 | Tubing hanger |
-
2013
- 2013-10-22 CN CN201320651234.3U patent/CN203499619U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165036A (en) * | 2014-08-12 | 2014-11-26 | 陈菊芳 | Tubing hanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 253034 Jinghua South Road, Dezhou Economic Development Zone, Shandong Province Patentee after: DEZHOU UNITED PETROLEUM TECHNOLOGY Corp. Address before: 253034 Shandong city of Dezhou Province Economic and Technological Development Zone South Road crystal Patentee before: DEZHOU UNITED PETROLEUM MACHINERY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |
|
| CX01 | Expiry of patent term |