CN207229048U - A kind of sand control cap of extension hanger tie-back sleeve - Google Patents
A kind of sand control cap of extension hanger tie-back sleeve Download PDFInfo
- Publication number
- CN207229048U CN207229048U CN201721210620.3U CN201721210620U CN207229048U CN 207229048 U CN207229048 U CN 207229048U CN 201721210620 U CN201721210620 U CN 201721210620U CN 207229048 U CN207229048 U CN 207229048U
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- CN
- China
- Prior art keywords
- sand control
- back sleeve
- control cap
- extension hanger
- tie
- Prior art date
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Abstract
The utility model provides a kind of sand control cap of extension hanger tie-back sleeve, including：Body, is hollow circular cylinder；Taper fastener, is arranged on the first end of the body, and the taper fastener is equipped with multiple axially opens；The outer wall of the taper fastener is equipped with locking external screw thread, and inner wall is equipped with locking teeth；Righting cylinder, is arranged on the second end of the body.The utility model, which can prevent from putting on extension hanger tripping in and midway are hampered, to be let live sand control cap during dynamic tubing string and produces movement, exposes tie-back sleeve horn mouth, solid phase particles enter tie-back sleeve and caused by sand card.
Description
Technical field
It the utility model is related to the technical field of oil drilling tool, more particularly to a kind of extension hanger tie-back sleeve is anti-
Sand cap.
Background technology
Extension hanger is the key tool of drilling liner cementing in petroleum drilling engineering.Extension hanger mainly includes suspension originally
Body assembly, tie-back sleeve, running tool assembly and seal assembly etc..When tie-back sleeve main function is easy for later stage progress casing tieback
Wait tieback plug and be inserted into tie-back sleeve, reach effective sealing of whole pipe string, realize the integrality of pit shaft.To avoid tail pipe from hanging
Enter solid phase particles in drilling liner cementing construction period inside hanging device tie-back sleeve, prevent running tool assembly from being blocked by solid phase particles,
Often it is used cooperatively in tie-back sleeve top design sand control mechanism with running tool assembly, which is normally referred to as " sand control
Cap ".
At present, common sand control cap mainly has two class design forms.One kind is that sand control mechanism is fixed on running tool is total
Cheng Shang, this kind design will be subject to the upward frictional resistance of outer wall when extension hanger Ru Jinghou sand controls mechanism, work as outer tube
Upward frictional resistance becomes larger when wall is not clean, easily against the coupling mechanism force of safetied pin, causes sand control cap and tie-back sleeve loudspeaker
Mouth produces gap, and tie-back sleeve horn mouth is in opening-wide state, and a large amount of solid phase particles enter inside extension hanger tie-back sleeve.
Another kind is to be connected sand control mechanism with tie-back sleeve pin, and designs strainer mechanism filtering solid phase particles and form pressure
Dynamic balance.This kind design equally exists frictional resistance during tripping in and upward thrust, especially water is formed to sand control mechanism
Horizontal well section or saline bed underground are fashionable, there are cutting bed in outer wall, when fashionable frictional resistance is more than shear pin shearing force instantly,
Still suffer from sand control mechanism and depart from tie-back sleeve horn mouth, solid phase particles enter inside extension hanger tie-back sleeve the wind for producing sand card
Danger.
Therefore, sand control cap coordinates close, solution tail with tie-back sleeve horn mouth during how realizing extension hanger tripping in
It is still sand control cap technical problem urgently to be resolved hurrily that solid phase particles, which enter inside extension hanger tie-back sleeve, in pipe cementing operation.
Utility model content
The feature and advantage of the utility model partly state in the following description, or can be shown from the description and easy
See, or can be learnt by putting into practice the utility model.
To overcome problem of the prior art, the utility model provides a kind of sand control cap of extension hanger tie-back sleeve, including：
Body, is hollow circular cylinder；
Taper fastener, is arranged on the first end of the body, and the taper fastener is equipped with multiple axially opens；Institute
The outer wall for stating taper fastener is equipped with locking external screw thread, and inner wall is equipped with locking teeth；
Righting cylinder, is arranged on the second end of the body；The outer wall of the righting cylinder is equipped with multiple righting ribs.
Alternatively, the axially open is at least 4, is uniformly distributed along the circumferential direction of the taper fastener.
Alternatively, the thickness of taper fastener reduces along the direction away from the body.
Alternatively, groove milling is additionally provided with the righting cylinder, between two adjacent righting ribs.
Alternatively, balance hole is further included, is arranged in the groove milling.
Alternatively, the described one end of righting cylinder away from the body is equipped with sealing surface.
Alternatively, the sealing surface is the plane of the chamfering with predetermined angle.
Alternatively, the sealing surface is equipped with vulcanised rubber layer.
Alternatively, the taper fastener and described body by integral forming.
Alternatively, dead ring is further included, its inner wall is equipped with what is matched with the locking external screw thread on the taper fastener
Lock internal thread.
The utility model provides a kind of sand control cap of extension hanger tie-back sleeve, can prevent in extension hanger tripping in
And midway be hampered on put and let live sand control cap during dynamic tubing string and produce movement, expose tie-back sleeve horn mouth, solid phase particles enter
Tie-back sleeve and caused by sand card.
By reading specification, the feature of these technical solutions and interior will be best understood in those of ordinary skill in the art
Hold.
Brief description of the drawings
The utility model is specifically described below with reference to attached drawing and with reference to example, the advantages of the utility model and realization
Mode will be more obvious, and content is only used for the explanation to the utility model wherein shown in attached drawing, without forming to this reality
With it is new in all senses on limitation, in the accompanying drawings：
Fig. 1 is the structure diagram of the sand control cap of the extension hanger tie-back sleeve of the utility model embodiment.
Fig. 2 is the structure diagram of the dead ring of the utility model embodiment.
Fig. 3 is the assembling structure schematic diagram of the sand control cap of the extension hanger tie-back sleeve of the utility model embodiment.
Embodiment
As shown in Figure 1, the utility model provides a kind of sand control cap of extension hanger tie-back sleeve, including body 10, setting
The first end of body 10 taper fastener and be arranged on body 10 second end righting cylinder 30；Wherein：
Body 10 is hollow circular cylinder；Taper fastener 20 is equipped with multiple axially opens 21, so that by taper fastener
20 are divided into multiple taper rosettes.Usually, axially open 21 is at least 4, is, for example, 6 or 8, those axially opens
21 can be uniformly arranged along the circumferential direction of taper fastener 20.In the present embodiment, the thickness of taper fastener 20 is along away from body 10
Direction reduce, that is to say, that closer to body 10, thickness is bigger.
The outer wall of taper fastener 20 is equipped with locking external screw thread 23, and locking external screw thread 23 is arranged on the outer wall of taper rosette
On；The inner wall of taper fastener 20 is equipped with locking teeth 22.The locking teeth 22 be equipped with default locking angle effectively to lock sand control
Cap, prevents that it is movable back and forth on pipe nipple is sent into.During extension hanger tripping in and midway be hampered up and down tubing string when,
Sand control cap remains in situ motionless, is still fitted close, prevents because of solid phase between sand control cap and tie-back sleeve after giving up
Grain enters tie-back sleeve and causes sand card.
In the specific implementation, taper fastener 20 can be integrally formed with body 10.
The outer wall of righting cylinder 30 is equipped with multiple righting ribs 31.Righting rib 31 is, for example, 8, along the circumferential equal of righting cylinder 30
Even distribution, it is placed in the middle to play righting during drilling tool veers away tail pipe, protects extension hanger is not direct to be connect with internal surface of sleeve pipe
Touch.
In the present embodiment, groove milling 32 is equipped between adjacent two righting ribs 31, groove milling 32 can be multiple, be, for example, 7
It is a, to increase the area of passage of sand control cap.Groove milling 32 is equipped with balance hole 33, for balancing tie-back sleeve external and internal pressure, prevents from depositing
In dead space.
The one end of righting cylinder away from body is equipped with sealing surface 34, and sealing surface 34 is the plane of the chamfering with predetermined angle,
The predetermined angle is, for example, 45 °.Sealing surface is equipped with vulcanised rubber layer, more specifically, 13 chamfering of sealing surface is designed with sulphur in one week
Change rubber, better seal effect can be formed with tie-back sleeve horn mouth 6.
Sealing surface 13 is arranged to 45 degree of chamferings, and the inside of screw threads for fastening ring 2 is using taper structure design and taper rosette 9 just
Good matching.Lock internal thread 14 equally to design using special thread, be conducive to the locking and recycling of screw threads for fastening ring 2.
As shown in Fig. 2, further including dead ring 40, its inner wall is equipped with what is matched with the locking external screw thread on taper fastener
Lock internal thread 41.The inner wall of dead ring 40 is the taper to match with the outer wall of taper fastener 20.When the lock of dead ring 40
When the locking external screw thread 23 of tight ring internal thread and taper fastener 20 screws, taper rosette is subject to radial load, and it is bigger to screw power,
Sand control cap is bigger to being sent into pipe nipple enclasping force.Usually, coupling mechanism force is controlled by screw threads for fastening power, and screw threads for fastening power is bigger, is prevented
Sand cap lock ability is stronger.Above-mentioned locking internal thread 41 can be special thread with locking external screw thread 23, and special thread screws letter
Folk prescription just can also be used repeatedly.In addition, the outside diameter of dead ring 40 can be designed to be suitable for casing tong, casing tong is utilized
Upper button is carried out according to certain torque setting value, so that screw thread is effectively protected, convenient follow-up dismounting maintenance.
Fig. 3 is refer to, when sand control cap is assembled with feeding pipe nipple 50 and tie-back sleeve 60；First sand control cap sleeve is located at
It is sent on pipe nipple 50, when not utilizing dead ring 40 to lock, sand control cap can be movable back and forth on pipe nipple 50 is sent into.Make sand control
The sealing surface 34 of cap is in contact with the top of tie-back sleeve horn mouth 61 after cooperation, by the locking internal thread 41 of dead ring 40 and taper
The locking external screw thread 23 of rosette is connected and screwed by casing tong according to setting moment of torsion.Screw rear taper fastener 20
Locking teeth 22 is embraced closed-bite maloccllusion with being sent into the outer wall of pipe nipple 50, is formed and the position of sand control cap is fixed, can be in tubing string tripping in
Moving freely for sand control cap is prevented in journey, effectively avoids solid phase particles in drilling fluid from entering tie-back sleeve 60.
The sand control cap of extension hanger tie-back sleeve provided by the utility model, is fixed on by locking teeth and locking external screw thread
It is sent on pipe nipple, prevents from putting on extension hanger tripping in and midway are hampered and let live sand control cap during dynamic tubing string and produce shifting
It is dynamic, expose tie-back sleeve horn mouth, solid phase particles enter tie-back sleeve and caused by sand card.The utility model is simple in structure, applicability
By force, there is extensive field popularization application value.
Above by reference to the preferred embodiment for having illustrated the utility model, it is new that those skilled in the art do not depart from this practicality
The scope and spirit of type, can have a variety of flexible programs to realize the utility model.For example, the part as one embodiment
The feature for showing or describing can be used for another embodiment to obtain another embodiment.It these are only that the utility model is preferably feasible
Embodiment, not thereby limits to the interest field of the utility model, all to use the utility model specification and accompanying drawing content
The equivalence changes made, are both contained within the interest field of the utility model.
Claims (10)
- A kind of 1. sand control cap of extension hanger tie-back sleeve, it is characterised in that including：Body, is hollow circular cylinder；Taper fastener, is arranged on the first end of the body, and the taper fastener is equipped with multiple axially opens；The cone The outer wall of shape fastener is equipped with locking external screw thread, and inner wall is equipped with locking teeth；Righting cylinder, is arranged on the second end of the body；The outer wall of the righting cylinder is equipped with multiple righting ribs.
- 2. the sand control cap of extension hanger tie-back sleeve according to claim 1, it is characterised in that the axially open is at least 4, it is uniformly distributed along the circumferential direction of the taper fastener.
- 3. the sand control cap of extension hanger tie-back sleeve according to claim 1, it is characterised in that the thickness edge of taper fastener Direction away from the body reduces.
- 4. the sand control cap of extension hanger tie-back sleeve according to claim 1, it is characterised in that be additionally provided with the righting cylinder Groove milling, between two adjacent righting ribs.
- 5. the sand control cap of extension hanger tie-back sleeve according to claim 4, it is characterised in that further include balance hole, set In the groove milling.
- 6. the sand control cap of extension hanger tie-back sleeve according to claim 1, it is characterised in that the righting cylinder is away from described One end of body is equipped with sealing surface.
- 7. the sand control cap of extension hanger tie-back sleeve according to claim 6, it is characterised in that the sealing surface is with pre- If the plane of the chamfering of angle.
- 8. the sand control cap of extension hanger tie-back sleeve according to claim 6, it is characterised in that the sealing surface is equipped with sulphur Change rubber layer.
- 9. the sand control cap of extension hanger tie-back sleeve according to claim 1, it is characterised in that the taper fastener and institute State this body by integral forming.
- 10. the sand control cap of extension hanger tie-back sleeve according to claim 1, it is characterised in that dead ring is further included, in it Wall is equipped with the locking internal thread to match with the locking external screw thread on the taper fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721210620.3U CN207229048U (en) | 2017-09-21 | 2017-09-21 | A kind of sand control cap of extension hanger tie-back sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721210620.3U CN207229048U (en) | 2017-09-21 | 2017-09-21 | A kind of sand control cap of extension hanger tie-back sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207229048U true CN207229048U (en) | 2018-04-13 |
Family
ID=61863103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721210620.3U Active CN207229048U (en) | 2017-09-21 | 2017-09-21 | A kind of sand control cap of extension hanger tie-back sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207229048U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838537A (en) * | 2019-03-28 | 2019-06-04 | 江苏中力齿轮有限公司 | A kind of engine link increasing journey bias gear wheel |
-
2017
- 2017-09-21 CN CN201721210620.3U patent/CN207229048U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838537A (en) * | 2019-03-28 | 2019-06-04 | 江苏中力齿轮有限公司 | A kind of engine link increasing journey bias gear wheel |
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