CN203547638U - High-temperature tubing head metal sealing device - Google Patents
High-temperature tubing head metal sealing device Download PDFInfo
- Publication number
- CN203547638U CN203547638U CN201320695568.0U CN201320695568U CN203547638U CN 203547638 U CN203547638 U CN 203547638U CN 201320695568 U CN201320695568 U CN 201320695568U CN 203547638 U CN203547638 U CN 203547638U
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- China
- Prior art keywords
- seal groove
- tubing head
- sealing device
- metal sealing
- head
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- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 title claims abstract description 40
- 239000002184 metal Substances 0.000 title claims abstract description 37
- 238000012856 packing Methods 0.000 claims description 37
- 241000254175 Anthonomus grandis Species 0.000 claims description 32
- 238000012423 maintenance Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of sealing devices, and discloses a high-temperature tubing head metal sealing device. The high-temperature tubing head metal sealing device comprises a tubing head reducing joint, a mandrel type tubing hanger and a tubing head four-way joint, wherein the lower end of the tubing head reducing joint and the upper end of the tubing head four-way joint are fixedly assembled together, the inner side of the upper portion of the tubing head four-way joint is provided with a limiting frustum, the mandrel type tubing hanger is located on the inner side of the upper portion of the tubing head four-way joint, the outer side of the lower portion of the mandrel type tubing hanger is fixedly provided with a lower metal sealing ring, the outer side of the lower metal sealing ring abuts against the limiting frustum, no less than two radial holes is formed in the outer side of the upper portion of the tubing head four-way joint, and a jackscrew locking and sealing device is arranged in the radial holes. The high-temperature tubing head metal sealing device is reasonable and compact in structure and convenient to use, the arrangement of an upper metal sealing ring, the lower metal sealing ring and an outer metal sealing ring can meet the sealing requirement of high-temperature work conditions, service life is prolonged at the same time, and maintenance and replacement frequency is reduced.
Description
Technical field
the utility model relates to sealing device technical field, is a kind of high temperature oil tube head metal sealing device.
Background technology
along with constantly improving and development of Xinjiang Oilfield thickened oil recovery, for suspension and the tubing head device of high temperature oil pipe, in the sealing performance under worst hot case, have higher requirement.Adopt at present mandrel type boll-weevil hanger to hang high temperature oil pipe, and mandrel type boll-weevil hanger adopts rubber ring to seal in tubing head joint and tubing head four-way, rubber ring not only can not meet the seal request under worst hot case under worst hot case, its application life is shorter, and need to often safeguard and change.
Summary of the invention
the utility model provides a kind of high temperature oil tube head metal sealing device, overcome the deficiency of above-mentioned prior art, what it can effectively solve that existing rubber seal exists in actual use can not meet the problem that seal request, application life are shorter and needs are often safeguarded and changed under worst hot case.
the technical solution of the utility model realizes by following measures: a kind of high temperature oil tube head metal sealing device, comprise tubing head reducing joint, mandrel type boll-weevil hanger and tubing head four-way, the upper end of the lower end of tubing head reducing joint and tubing head four-way is fixedly installed togather, at the upper inner limited location frustum of tubing head four-way, mandrel type boll-weevil hanger is positioned at the upper inner of tubing head four-way, at the lower outside of mandrel type boll-weevil hanger, be fixed with lower metallic packing ring, the outside of lower metallic packing ring holds out against on spacing frustum, in the upper outside of tubing head four-way, there is the radial hole that is no less than two, in radial hole, be installed with jackscrew lock sealing device, in the upper outside of mandrel type boll-weevil hanger, there is the stopper slot corresponding with radial hole, the longitudinal cross-section of stopper slot is the V-type of outward opening, the inner of jackscrew lock sealing device holds out against in stopper slot, between the lower end of tubing head reducing joint and the upper end of mandrel type boll-weevil hanger, be installed with metallic packing ring, between the upper end of tubing head four-way and the lower end of tubing head reducing joint, be installed with outer metallic packing ring.
the further optimization and/or improvements to above-mentioned utility model technical scheme below:
above-mentioned jackscrew lock sealing device can comprise jackscrew, airtight and watertight padding and mounting head; Radial hole is interior narrow outer wide radial hole, downside in the inner and the stopper slot of jackscrew is fitted together, between jackscrew and the middle part of radial hole, be fixed with airtight and watertight padding, the mounting head that is positioned at radial hole is fixed on radial hole by screw thread, and the inner of mounting head and the outer end of airtight and watertight padding are fitted together.
the lower outside of above-mentioned mandrel type boll-weevil hanger can be fixed with metal baffle ring, and the lower end of the upper end of metal baffle ring and lower metallic packing ring is fitted together.
it is T-shaped that the longitudinal cross-section of above-mentioned metal baffle ring can be.
can there be the upper seal groove that is no less than the lower end of above-mentioned tubing head reducing joint, in the upper end of mandrel type boll-weevil hanger, there is the lower seal groove cavity corresponding with upper seal groove, between upper seal groove and lower seal groove cavity, be installed with metallic packing ring, in the upper end of tubing head four-way, there is the lower auxiliary seal groove that is less than, in the lower end of tubing head reducing joint, there is the upper auxiliary seal groove corresponding with lower auxiliary seal groove, between upper auxiliary seal groove and lower auxiliary seal groove, be installed with outer metallic packing ring.
the number of above-mentioned radial hole can be four.
the utility model reasonable and compact in structure, easy to use, the setting of upper metallic packing ring, lower metallic packing ring and outer metallic packing ring can meet the seal request of worst hot case, has extended application life simultaneously, has reduced the number of times of safeguarding and changing.
Accompanying drawing explanation
the master that accompanying drawing 1 is the utility model most preferred embodiment looks broken section structural representation.
coding in accompanying drawing is respectively: 1 is tubing head reducing joint, 2 is mandrel type boll-weevil hanger, and 3 is tubing head four-way, and 4 is spacing frustum, 5 is lower metallic packing ring, 6 is stopper slot, and 7 is upper metallic packing ring, and 8 is outer metallic packing ring, 9 is jackscrew, 10 is airtight and watertight padding, and 11 is mounting head, and 12 is metal baffle ring.
The specific embodiment
the utility model is not subject to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
in the utility model, for convenience of description, the description of the relative position relation of each parts is to be all described according to the Butut mode of Figure of description 1, as: the position relationship of forward and backward, upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description 1.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as shown in Figure 1, this high temperature oil tube head metal sealing device comprises tubing head reducing joint 1, mandrel type boll-weevil hanger 2 and tubing head four-way 3, the upper end of the lower end of tubing head reducing joint 1 and tubing head four-way 3 is fixedly installed togather, at the upper inner limited location frustum 4 of tubing head four-way 3, mandrel type boll-weevil hanger 2 is positioned at the upper inner of tubing head four-way 3, at the lower outside of mandrel type boll-weevil hanger 2, be fixed with lower metallic packing ring 5, the outside of lower metallic packing ring 5 holds out against on spacing frustum 4, in the upper outside of tubing head four-way 3, there is the radial hole that is no less than two, in radial hole, be installed with jackscrew lock sealing device, in the upper outside of mandrel type boll-weevil hanger 2, there is the stopper slot corresponding with radial hole 6, the longitudinal cross-section of stopper slot 6 is the V-type of outward opening, the inner of jackscrew lock sealing device holds out against in stopper slot 6, between the lower end of tubing head reducing joint 1 and the upper end of mandrel type boll-weevil hanger 2, be installed with metallic packing ring 7, between the upper end of tubing head four-way 3 and the lower end of tubing head reducing joint 1, be installed with outer metallic packing ring 8.Tubing head reducing joint 1, mandrel type boll-weevil hanger 2 and tubing head four-way 3 are existing known technology; The setting of upper metallic packing ring 7, lower metallic packing ring 5 and outer metallic packing ring 8 can meet the requirement of worst hot case, has improved sealing performance, has improved application life simultaneously, thereby has reduced the number of times of safeguarding and changing; The upper end of the lower end of tubing head reducing joint 1 and tubing head four-way 3 generally adopts bolt and nut to be fixedly installed togather.
can according to actual needs, above-mentioned high temperature oil tube head metal sealing device be made further optimization and/or improvements:
as shown in Figure 1, jackscrew lock sealing device comprises jackscrew 9, airtight and watertight padding 10 and mounting head 11; Radial hole is interior narrow outer wide radial hole, downside in the inner of jackscrew 9 and stopper slot 6 is fitted together, between jackscrew 9 and the middle part of radial hole, be fixed with airtight and watertight padding 10, the mounting head 11 that is positioned at radial hole is fixed on radial hole by screw thread, and the outer end of the inner of mounting head 11 and airtight and watertight padding 10 is fitted together.
as shown in Figure 1, at the lower outside of mandrel type boll-weevil hanger 2, be fixed with metal baffle ring 12, the lower end of the upper end of metal baffle ring 12 and lower metallic packing ring 5 is fitted together.The setting of metal baffle ring 12 can, when upper lifting pipe post, trip out well head by lower metallic packing ring 5 and maintain, safeguard and change together with mandrel type boll-weevil hanger 2.
as shown in Figure 1, the longitudinal cross-section of metal baffle ring 12 is T-shaped.
as shown in Figure 1, in the lower end of tubing head reducing joint 1, there is the upper seal groove that is no less than, in the upper end of mandrel type boll-weevil hanger 2, there is the lower seal groove cavity corresponding with upper seal groove, between upper seal groove and lower seal groove cavity, be installed with metallic packing ring 7, in the upper end of tubing head four-way 3, there is the lower auxiliary seal groove that is less than, in the lower end of tubing head reducing joint 1, there is the upper auxiliary seal groove corresponding with lower auxiliary seal groove, between upper auxiliary seal groove and lower auxiliary seal groove, be installed with outer metallic packing ring 8.
as required, the number of radial hole is four.
above technical characterictic has formed most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
the use procedure of the utility model most preferred embodiment: first, lower metallic packing ring 5 is fixedly installed togather by metal baffle ring 12 and mandrel type boll-weevil hanger 2, then, four jackscrews 9 are all exited to radial hole, then mandrel type boll-weevil hanger 2 and tubing nipple are taken out, carry out lower oil pipe operation, when last root oil pipe being lowered to approaches tubing head four-way 3, reduce the lowering velocity of oil pipe, with the spacing frustum 4 in protection tubing head four-way 3, the top of last root oil pipe and mandrel type boll-weevil hanger 2 bottoms are fixedly installed togather, and make 5 of lower metallic packing rings on spacing frustum 4, finally, tighten jackscrew 9 and mounting head 11, complete oil pipe and transfer the setting of operation and mandrel type boll-weevil hanger 2.
Claims (10)
1. a high temperature oil tube head metal sealing device, it is characterized in that comprising tubing head reducing joint, mandrel type boll-weevil hanger and tubing head four-way, the upper end of the lower end of tubing head reducing joint and tubing head four-way is fixed together, at the upper inner limited location frustum of tubing head four-way, mandrel type boll-weevil hanger is positioned at the upper inner of tubing head four-way, at the lower outside of mandrel type boll-weevil hanger, be fixed with lower metallic packing ring, the outside of lower metallic packing ring holds out against on spacing frustum, in the upper outside of tubing head four-way, there is the radial hole that is no less than two, in radial hole, be installed with jackscrew lock sealing device, in the upper outside of mandrel type boll-weevil hanger, there is the stopper slot corresponding with radial hole, the longitudinal cross-section of stopper slot is the V-type of outward opening, the inner of jackscrew lock sealing device holds out against in stopper slot, between the lower end of tubing head reducing joint and the upper end of mandrel type boll-weevil hanger, be installed with metallic packing ring, between the upper end of tubing head four-way and the lower end of tubing head reducing joint, be installed with outer metallic packing ring.
2. high temperature oil tube head metal sealing device according to claim 1, is characterized in that jackscrew lock sealing device comprises jackscrew, airtight and watertight padding and mounting head; Radial hole is interior narrow outer wide radial hole, downside in the inner and the stopper slot of jackscrew is fitted together, between jackscrew and the middle part of radial hole, be fixed with airtight and watertight padding, the mounting head that is positioned at radial hole is fixed on radial hole by screw thread, and the inner of mounting head and the outer end of airtight and watertight padding are fitted together.
3. high temperature oil tube head metal sealing device according to claim 1 and 2, is characterized in that the lower outside of mandrel type boll-weevil hanger is fixed with metal baffle ring, and the lower end of the upper end of metal baffle ring and lower metallic packing ring is fitted together.
4. high temperature oil tube head metal sealing device according to claim 3, is characterized in that the longitudinal cross-section of metal baffle ring is T-shaped.
5. high temperature oil tube head metal sealing device according to claim 1 and 2, there is the upper seal groove that is no less than the lower end that it is characterized in that tubing head reducing joint, in the upper end of mandrel type boll-weevil hanger, there is the lower seal groove cavity corresponding with upper seal groove, between upper seal groove and lower seal groove cavity, be installed with metallic packing ring, in the upper end of tubing head four-way, there is the lower auxiliary seal groove that is less than, in the lower end of tubing head reducing joint, there is the upper auxiliary seal groove corresponding with lower auxiliary seal groove, between upper auxiliary seal groove and lower auxiliary seal groove, be installed with outer metallic packing ring.
6. high temperature oil tube head metal sealing device according to claim 3, there is the upper seal groove that is no less than the lower end that it is characterized in that tubing head reducing joint, in the upper end of mandrel type boll-weevil hanger, there is the lower seal groove cavity corresponding with upper seal groove, between upper seal groove and lower seal groove cavity, be installed with metallic packing ring, in the upper end of tubing head four-way, there is the lower auxiliary seal groove that is less than, in the lower end of tubing head reducing joint, there is the upper auxiliary seal groove corresponding with lower auxiliary seal groove, between upper auxiliary seal groove and lower auxiliary seal groove, be installed with outer metallic packing ring.
7. high temperature oil tube head metal sealing device according to claim 4, there is the upper seal groove that is no less than the lower end that it is characterized in that tubing head reducing joint, in the upper end of mandrel type boll-weevil hanger, there is the lower seal groove cavity corresponding with upper seal groove, between upper seal groove and lower seal groove cavity, be installed with metallic packing ring, in the upper end of tubing head four-way, there is the lower auxiliary seal groove that is less than, in the lower end of tubing head reducing joint, there is the upper auxiliary seal groove corresponding with lower auxiliary seal groove, between upper auxiliary seal groove and lower auxiliary seal groove, be installed with outer metallic packing ring.
8. high temperature oil tube head metal sealing device according to claim 1 and 2, the number that it is characterized in that radial hole is four.
9. high temperature oil tube head metal sealing device according to claim 3, the number that it is characterized in that radial hole is four.
10. high temperature oil tube head metal sealing device according to claim 7, the number that it is characterized in that radial hole is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320695568.0U CN203547638U (en) | 2013-11-06 | 2013-11-06 | High-temperature tubing head metal sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320695568.0U CN203547638U (en) | 2013-11-06 | 2013-11-06 | High-temperature tubing head metal sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203547638U true CN203547638U (en) | 2014-04-16 |
Family
ID=50465767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320695568.0U Expired - Lifetime CN203547638U (en) | 2013-11-06 | 2013-11-06 | High-temperature tubing head metal sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203547638U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975818A (en) * | 2015-06-30 | 2015-10-14 | 中国石油天然气股份有限公司 | Device and technological method for pulling lower oil tube |
| CN106014323A (en) * | 2016-07-21 | 2016-10-12 | 宝鸡石油机械有限责任公司广汉钻采设备厂 | Hanger with metal auxiliary seal and tubing equipment with hanger |
| CN106050180A (en) * | 2016-07-15 | 2016-10-26 | 中国石油天然气集团公司 | Metal sealing ring for radial sealing |
| CN106761507A (en) * | 2016-12-15 | 2017-05-31 | 中石化重庆涪陵页岩气勘探开发有限公司 | A kind of shale gas well boll-weevil hanger and the shale gas gas production system containing the hanger |
-
2013
- 2013-11-06 CN CN201320695568.0U patent/CN203547638U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975818A (en) * | 2015-06-30 | 2015-10-14 | 中国石油天然气股份有限公司 | Device and technological method for pulling lower oil tube |
| CN104975818B (en) * | 2015-06-30 | 2017-05-10 | 中国石油天然气股份有限公司 | Device and technological method for pulling lower oil tube |
| CN106050180A (en) * | 2016-07-15 | 2016-10-26 | 中国石油天然气集团公司 | Metal sealing ring for radial sealing |
| CN106014323A (en) * | 2016-07-21 | 2016-10-12 | 宝鸡石油机械有限责任公司广汉钻采设备厂 | Hanger with metal auxiliary seal and tubing equipment with hanger |
| CN106014323B (en) * | 2016-07-21 | 2018-11-30 | 宝鸡石油机械有限责任公司广汉钻采设备厂 | Lower oil tube equipment equipped with hanger |
| CN106761507A (en) * | 2016-12-15 | 2017-05-31 | 中石化重庆涪陵页岩气勘探开发有限公司 | A kind of shale gas well boll-weevil hanger and the shale gas gas production system containing the hanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |