CN108729872A - A kind of new casing hanger - Google Patents
A kind of new casing hanger Download PDFInfo
- Publication number
- CN108729872A CN108729872A CN201810494100.2A CN201810494100A CN108729872A CN 108729872 A CN108729872 A CN 108729872A CN 201810494100 A CN201810494100 A CN 201810494100A CN 108729872 A CN108729872 A CN 108729872A
- Authority
- CN
- China
- Prior art keywords
- casing hanger
- ring
- lock ring
- support ring
- support
- 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.)
- Granted
Links
- 239000000725 suspension Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 4
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 239000001997 corrosion-resisting alloy Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 239000003129 oil well Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to oil well sealing device technical field, more particularly to a kind of new casing hanger.With carrying lock ring, support ring and actuated peg on casing hanger, the top of casing hanger is equipped with well head head lock ring slot, carrying lock ring is located at the surface of support ring, there are carrying lock ring carrying step and support level on carrying lock ring, support ring is equipped with support ring locking slot and support ring bottom, and support ring bottom is located at the lowermost end of support ring, suspension lock ring is equipped in support ring locking slot, be in contact extruding at the top of actuated peg bottom surface and last layer casing hanger, and the side of actuated peg is equipped with locking pin.The present invention provides locking for a kind of certifiable casing hanger and support ring in decentralization process, in place after and be easy to disengage, avoid part from being hampered the new casing hanger that all supporting pins are disengaged and sit extension problem in advance.
Description
Technical field
The present invention relates to oil well sealing device technical field, more particularly to a kind of new casing hanger.
Background technology
In petroleum drilling completion wellhead equipment, in order to support each layer casing to be required for, there are one casing hanger, installing casing
Hanger is required for providing a seat hanging platform rank, and a casing hanger is hung as soon as only being sat if it is each layer of casing head, as long as
One seat hanging platform rank is provided on casing head, and this step is also only required and bears this layer of casing wt.But it if adopts
With the especially underwater casing head of Multifunctional casing head, the casing hanger of installation two or more inside casing head is required, it is deep
, at least will be more than three casing hangers in water drilling completion wellhead equipment, product currently on the market all selects single load-bearing
Step, each casing hanger stack installation, this requires that the load-bearing step of casing head uses special material, to selection plus
Work all brings difficulty.
Therefore be badly in need of it is a kind of both can guarantee being locked in decentralization process for casing hanger and support ring, in place after and be easy to disengage,
It is avoided that the local new casing hanger for being hampered and all supporting pins being disengaged and sit extension problem in advance again.
Invention content
In view of problem above, the present invention provides being locked in decentralization process for a kind of certifiable casing hanger and support ring,
It after in place and is easy to disengage, avoids part from being hampered and all supporting pins are disengaged and are sat in advance the new casing suspension of extension problem
Device.
In order to achieve the above-mentioned object of the invention, the present invention provides following technical scheme：
A kind of new casing hanger in the present invention, casing hanger are mounted at well head head, the top of the well head head
Equipped with lock ring slot, well head head lock ring is equipped with carrying lock ring, support ring and actuated peg, the top of described sleeve pipe extension on casing hanger
Slot, described sleeve pipe hang up also outer surface and casing hanger step surface, and the outer surface is perpendicular contact face, the outer profile
The inner surface of the sustainable carrying lock ring in face, described sleeve pipe hanging platform terrace is inclined contact surface, and the carrying lock ring is located at support ring
Surface, have carrying lock ring carrying step and support level, the support level and well head head lock ring on the carrying lock ring
Slot matches contact, and the support ring is equipped with support ring locking slot and support ring bottom, and the support ring bottom is located at support
The lowermost end of ring, the support ring locking slot is interior to be equipped with suspension lock ring, and the actuated peg bottom is known as actuated peg bottom surface, the rush
Be in contact extruding at the top of dynamic pin bottom surface and last layer casing hanger, and the side of the actuated peg is equipped with locking pin.
Further, the top of the support ring is additionally provided with shear pin, and the shear pin can be used for whether examining casing hanger
Tripping in is in place.
Further, the well head head lock ring slot is serrated.
Further, the actuated peg bottom surface and the contact surface at the top of last layer casing hanger are inclined contact surface.
Further, described sleeve pipe is hung, the material of carrying lock ring, support ring, shear pin, locking pin, actuated peg is selected
Corrosion-resisting alloy steel.
The advantages of the present invention are：There is provided a kind of certifiable casing hanger and support ring in decentralization process
Locking, in place after and be easy to disengage, avoid part from being hampered the new casing that all supporting pin is disengaged and sits extension problem in advance
Hanger.
The design is coordinated using supporting pin and actuated peg, both ensure that being locked in decentralization process for casing hanger and support ring
Tightly, in place after and be easy disengage；The single design of actuated peg can be hampered and all supporting pins will not be disengaged to avoid part,
It avoids sitting extension in advance；The design of shear pin 11 can check whether in place, and when recycling can shear again slips out of the hand；Hanging ring is being transferred
Process can push support ring to move down, when recycling again can suspension strut ring recycle together.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art
With obtain other attached drawings according to these attached drawings.
Fig. 1 is new casing hanger structural schematic diagram.
Reference sign
1. 2. casing hanger of well head head, 3. 4. outer surface of well head head lock ring slot, 5. casing hanger step surface
6. carrying lock ring carrying 7. well head head lock ring slot 8. of step carries 9. support level of lock ring
10. 11. shear pin 12. of support ring hangs 13. support ring locking slot of lock ring, 14. locking pin
15. 17. actuated peg bottom surface, 18. support ring bottom at the top of 16. last layer casing hanger of actuated peg
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is further described.Following embodiment is only
For clearly illustrating technical scheme of the present invention, and not intended to limit the protection scope of the present invention.
A kind of new casing hanger, as shown in Figure 1, casing hanger is mounted at well head head 1, the top of well head head 1
Equipped with lock ring slot 7, well head head lock ring slot 7 is serrated.Carrying lock ring 8, support ring 10 and actuated peg 15 are carried on casing hanger 2,
The top of casing hanger 2 is equipped with well head head lock ring slot 3, also has outer surface 4 and casing hanger step surface 5, outer surface on casing hanger 2
4 be perpendicular contact face, and the inner surface of the sustainable carrying lock ring 8 of outer surface 4, casing hanger step surface 5 is inclined contact surface, carrying
Lock ring 8 is located at the surface of support ring 10, and carrying has carrying lock ring carrying step 6 and support level 9, support level 9 on lock ring 8
It matches and contacts with well head head lock ring slot 7, support ring 10 is equipped with support ring locking slot 13 and support ring bottom 18, support ring bottom
Portion 18 is located at the lowermost end of support ring 10, suspension lock ring 12 is equipped in support ring locking slot 13,15 bottom of actuated peg is known as actuating
Sell bottom surface 17, actuated peg bottom surface 17 is in contact extruding, actuated peg bottom surface 17 and last layer casing at the top of last layer casing hanger 16
The contact surface for hanging top 16 is inclined contact surface.The side of actuated peg 15 is equipped with locking pin 14.The top of support ring 10 is additionally provided with
Shear pin 11, shear pin 11 can be used for examine casing hanger 2 whether tripping in place.Casing hanger 2, support ring 10, is cut carrying lock ring 8
Cut pin 11, locking pin 14, actuated peg 15 material select corrosion-resisting alloy steel.
With carrying lock ring 8 and support ring 10 and actuated peg 15 on casing hanger 2, in the process of decentralization casing hanger 2
Middle support ring 10 is suspended on by shear pin 11 on the ontology of casing hanger 2, and carrying lock ring 8 is placed on the top of support ring 10, together
When support ring 10 be locked in by locking pin 14 on the ontology of casing hanger 2, as casing hanger 2 is transferred together, when actuated peg bottom surface
17 contact at the top of last layer casing hanger 16 and are pressed into support ring 10, and locking pin 14 is pushed back locking pin by actuated peg 15 at this time
In slot, until support ring bottom 18 is contacted at the top of last layer casing hanger 16 so that casing hanger 2 is disengaged with support ring 10, at this moment
Support ring 10 is fixed, and casing hanger 2 can continue to transfer in the effect of gravity, transfers while casing hanger step surface 5 can be pushed and be held
It carries lock ring 8 to move out, until the support level 9 of carrying lock ring 8 is pressed into well head head lock ring slot 7, at this moment casing hanger 2 is outer
Contoured surface 4 is supported in the inner surface of carrying lock ring 8, and the carrying step seat of casing hanger 2 is hung at carrying lock ring carrying step 6,
Shear pin 11, which can move downward, during this is pressed into support ring locking slot 13, plays casing hanger 2 and is locked with support ring 10
Effect, suspension lock ring 12 with casing hanger 2 decentralization, on the carrying step of mobile support ring 10.
It may lift up after 2 tripping in of casing hanger and whether in place to examine casing hanger 2, bearing capacity at this time is exactly to rely on shear pin
11 support force.It needs to provide the shearing force more than shear pin 11 if when recovery set pipe hanger 2, cuts shear pin
11, while support ring 10 and carrying lock ring 8 are recycled together using hanging ring 12.Due to well during transferring casing hanger 2
There is different steps in cylinder, casing hanger is sat to hang actuated peg 15 and be designed as individually acting in advance in order to prevent only has casing hanger to arrive completely
In place the compression of all actuated pegs, supporting pin 14 could disengage, it is therefore prevented that casing hanger sits the possibility of extension in advance for position.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (5)
1. a kind of new casing hanger, casing hanger is mounted at well head head, and the top of the well head head is equipped with lock ring slot,
It is characterized in that, with carrying lock ring, support ring and actuated peg on casing hanger, the top that described sleeve pipe is hung is equipped with well head head lock ring
Slot, described sleeve pipe hang up also outer surface and casing hanger step surface, and the outer surface is perpendicular contact face, the outer profile
The inner surface of the sustainable carrying lock ring in face, described sleeve pipe hanging platform terrace is inclined contact surface, and the carrying lock ring is located at support ring
Surface, have carrying lock ring carrying step and support level, the support level and well head head lock ring on the carrying lock ring
Slot matches contact, and the support ring is equipped with support ring locking slot and support ring bottom, and the support ring bottom is located at support
The lowermost end of ring, the support ring locking slot is interior to be equipped with suspension lock ring, and the actuated peg bottom is known as actuated peg bottom surface, the rush
Be in contact extruding at the top of dynamic pin bottom surface and last layer casing hanger, and the side of the actuated peg is equipped with locking pin.
2. a kind of new casing hanger according to claim 1, which is characterized in that the top of the support ring is additionally provided with
Shear pin, the shear pin can be used for examine casing hanger whether tripping in place.
3. a kind of new casing hanger according to claim 1, which is characterized in that the well head head lock ring slot is in sawtooth
Shape.
4. a kind of new casing hanger according to claim 1, which is characterized in that the actuated peg bottom surface and last layer
Contact surface at the top of casing hanger is inclined contact surface.
5. a kind of new casing hanger according to claim 1, which is characterized in that described sleeve pipe is hung, carrying lock ring, propped up
Pushing out ring, shear pin, locking pin, actuated peg material select corrosion-resisting alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810494100.2A CN108729872B (en) | 2018-05-22 | 2018-05-22 | Novel casing hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810494100.2A CN108729872B (en) | 2018-05-22 | 2018-05-22 | Novel casing hanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108729872A true CN108729872A (en) | 2018-11-02 |
| CN108729872B CN108729872B (en) | 2024-06-04 |
Family
ID=63938657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810494100.2A Active CN108729872B (en) | 2018-05-22 | 2018-05-22 | Novel casing hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108729872B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377141A (en) * | 2020-12-08 | 2021-02-19 | 重庆前卫科技集团有限公司 | Spare locking device for oil pipe hanger of underwater Christmas tree |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1482125A (en) * | 1973-09-27 | 1977-08-03 | Nelson N | Well suspension system |
| US4641708A (en) * | 1985-09-06 | 1987-02-10 | Hughes Tool Company | Casing hanger locking device |
| US20060016604A1 (en) * | 2004-07-26 | 2006-01-26 | Vetco Gray Inc. | Shoulder ring set on casing hanger trip |
| US20110253389A1 (en) * | 2009-01-09 | 2011-10-20 | Cameron International Corporation | Single trip positive lock adjustable hanger landing shoulder device |
| CN102606106A (en) * | 2012-03-16 | 2012-07-25 | 江汉石油钻头股份有限公司 | Ring seal assembly of bidirectional metal seal structure |
| CN102691486A (en) * | 2011-03-24 | 2012-09-26 | 韦特柯格雷公司 | Casing hanger lockdown slip ring |
| CN203905883U (en) * | 2014-04-21 | 2014-10-29 | 中国石油大学(华东) | Metal sealing device used for underwater well head |
| CN204040963U (en) * | 2014-07-15 | 2014-12-24 | 中国石油天然气股份有限公司 | A kind of extension hanger |
| CN204571930U (en) * | 2015-04-09 | 2015-08-19 | 中国石油集团西部钻探工程有限公司 | Liner completion capable of circulation builds the pressure ball seat |
| US20160245040A1 (en) * | 2015-02-19 | 2016-08-25 | Dril-Quip, Inc. | Metal to metal annulus seal with enhanced lock-down capacity |
| CN208310731U (en) * | 2018-05-22 | 2019-01-01 | 上海霞为石油设备技术服务有限公司 | A kind of new casing hanger |
-
2018
- 2018-05-22 CN CN201810494100.2A patent/CN108729872B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1482125A (en) * | 1973-09-27 | 1977-08-03 | Nelson N | Well suspension system |
| US4641708A (en) * | 1985-09-06 | 1987-02-10 | Hughes Tool Company | Casing hanger locking device |
| US20060016604A1 (en) * | 2004-07-26 | 2006-01-26 | Vetco Gray Inc. | Shoulder ring set on casing hanger trip |
| US20110253389A1 (en) * | 2009-01-09 | 2011-10-20 | Cameron International Corporation | Single trip positive lock adjustable hanger landing shoulder device |
| CN102691486A (en) * | 2011-03-24 | 2012-09-26 | 韦特柯格雷公司 | Casing hanger lockdown slip ring |
| CN102606106A (en) * | 2012-03-16 | 2012-07-25 | 江汉石油钻头股份有限公司 | Ring seal assembly of bidirectional metal seal structure |
| CN203905883U (en) * | 2014-04-21 | 2014-10-29 | 中国石油大学(华东) | Metal sealing device used for underwater well head |
| CN204040963U (en) * | 2014-07-15 | 2014-12-24 | 中国石油天然气股份有限公司 | A kind of extension hanger |
| US20160245040A1 (en) * | 2015-02-19 | 2016-08-25 | Dril-Quip, Inc. | Metal to metal annulus seal with enhanced lock-down capacity |
| CN204571930U (en) * | 2015-04-09 | 2015-08-19 | 中国石油集团西部钻探工程有限公司 | Liner completion capable of circulation builds the pressure ball seat |
| CN208310731U (en) * | 2018-05-22 | 2019-01-01 | 上海霞为石油设备技术服务有限公司 | A kind of new casing hanger |
Non-Patent Citations (1)
| Title |
|---|
| 杨同玉: "可提出式插管封隔器关键技术及现场应用", 断块油气田, vol. 24, no. 02, 25 March 2017 (2017-03-25), pages 289 - 292 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377141A (en) * | 2020-12-08 | 2021-02-19 | 重庆前卫科技集团有限公司 | Spare locking device for oil pipe hanger of underwater Christmas tree |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108729872B (en) | 2024-06-04 |
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