CN206830148U - A kind of oil and gas exploitation well gravel-pack assembly - Google Patents
A kind of oil and gas exploitation well gravel-pack assembly Download PDFInfo
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- CN206830148U CN206830148U CN201720333098.1U CN201720333098U CN206830148U CN 206830148 U CN206830148 U CN 206830148U CN 201720333098 U CN201720333098 U CN 201720333098U CN 206830148 U CN206830148 U CN 206830148U
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- sliding sleeve
- filling
- shunting sliding
- shunting
- ring
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Abstract
It the utility model is related to a kind of oil and gas exploitation well gravel-pack assembly.Its technical scheme is：The lower end of filling pipe and the upper end for short circuit of blocking are connected through a screw thread, and fixed by anti-turn screw, the outside of filling pipe is connected by shear pin with shunting sliding sleeve, resilient mounting is provided between the outside of the shunting sliding sleeve and baffle ring, fill and be flexibly connected on the inside of the upper end of set with shunting sliding sleeve, outside is flexibly connected with flow guide sleeve, and cavity is formed between outer tube inner wall and inner tank theca, sealing ring, the top connection pressure ring of sealing ring are provided with cavity.The beneficial effects of the utility model are：It is two kinds that the utility model shunting sliding sleeve, which closes mode, above carry filling pipe drives top shunting sliding sleeve on shunting sliding sleeve mechanical closing and resilient mounting to close two kinds of closing modes by shear pin shearing force, avoid but due to much time using, the screen resilience of spring can weaken, top on spring is set to close shunting sliding sleeve, it is possible to increase the reliability that packing tool is closed.
Description
Technical field
The packing tool that a kind of oil and gas exploitation well uses is the utility model is related to, more particularly to a kind of oil is natural
Gas recovery well gravel-pack assembly.
Background technology
At present, the gravel pack tools of oil and gas exploitation well application, due to sand plug during by filling anti-sand or
The anti-influence not washed clean of gravel, after giving up, the shunting that packing tool occurs slides over above filling pipe that shear pin shearing force can not
Make the situation of shunting sliding sleeve closing in place, shunting sliding sleeve during subsequent production opens, and causes reservoir sand and back-up sand to enter
It is more than sand preventing tool, situations such as causing sand card or sand to bury sand screen.Cause gravel filling sand prevention to fail, or even can also cause oil gas
Well overhaul accident, therefore construction cost is added, the utilization rate of Oil/gas Well is reduced, present device passes through by above carrying filling pipe
Shear pin shearing force drives top shunting sliding sleeve on shunting sliding sleeve mechanical closing and spring to close two kinds of closing modes, relative can improve
The reliability that packing tool is closed, but because much time using, the screen resilience of spring can weaken, top on spring is made
Sliding sleeve is shunted to close.
The content of the invention
The purpose of this utility model is aiming at drawbacks described above existing for prior art, there is provided a kind of oil and gas exploitation
Well gravel-pack assembly, it is two kinds that the utility model shunting sliding sleeve, which closes mode, above carries filling pipe and passes through shear pin shearing force band
Top shunting sliding sleeve closes two kinds of closing modes on dynamic shunting sliding sleeve mechanical closing and resilient mounting, avoids but due to making for a long time
With the screen resilience of spring can weaken, and top on spring is closed shunting sliding sleeve.
Its technical scheme is：Including filling pipe, shear pin, flow guide sleeve, shunting sliding sleeve, filling set, anti-turn screw, lower contact,
Washing pipe joint, the lower end of filling pipe and the upper end for short circuit of blocking are connected through a screw thread, and are fixed by anti-turn screw, short circuit of blocking
Lower end and the upper end of gear cap be connected through a screw thread, lower end and the washing pipe joint of gear cap are connected through a screw thread, the outside of filling pipe
Be connected by shear pin with shunting sliding sleeve, the outside for shunting sliding sleeve and be provided with resilient mounting between baffle ring, under the baffle ring
Side is lower contact, and the outside of lower contact and the lower end of filling set are connected through a screw thread, filled on the inside of the upper end of set with shunting sliding sleeve
It is flexibly connected, outside is flexibly connected with flow guide sleeve, and the resilient mounting includes outer barrel, inner cylinder, cavity, sealing ring, pressure ring, outside
Cylinder is internal to be provided with inner cylinder, hole centered on inner cylinder inside, cavity is formed between outer tube inner wall and inner tank theca, is provided with and seals in cavity
Circle, the top connection pressure ring of sealing ring.
The bottom of above-mentioned cavity is sealing.
Above-mentioned baffle ring is loop configuration, and internal diameter is less than the internal diameter of filling set, and the external diameter of baffle ring is more than the internal diameter of filling set, and
Fill and groove is provided with the downside of the inwall of set, top and the spring baffle ring of the groove coordinate, and the outer wall of bottom and lower contact coordinates.
The lower end inner wall protrusion of above-mentioned shunting sliding sleeve, pressure ring are provided with groove, insert the projective structure of shunting sliding sleeve
It is connected in groove on pressure ring.
The internal diameter of above-mentioned pressure ring is more than the diameter of inner cylinder, and the external diameter of pressure ring is less than the diameter of outer barrel.
The beneficial effects of the utility model are：It is two kinds that the utility model shunting sliding sleeve, which closes mode, above carries filling pipe and leads to
Cross shear pin shearing force drive shunting sliding sleeve mechanical closing and resilient mounting on top shunting sliding sleeve close two kinds closing modes, avoid but
Due to much time using, the screen resilience of spring can weaken, and top on spring is closed shunting sliding sleeve, it is possible to increase to fill
Fill out the reliability of instrument closing；The device can drive shunting sliding sleeve mechanical closing by above carrying filling pipe by shear pin shearing force,
And the device is provided with resilient mounting, resilient mounting is provided with sealing ring and pressure ring, and shunting sliding sleeve is pushed by other pressure by pressure ring
Sealing ring, the air pressure in cavity is set to become big, shunting sliding sleeve is opened, and after active force disappears, the pressure of cavity can push up sealing upwards
Plug, by being pushed up on pressure ring on shunting sliding sleeve, packing tool is closed, is avoided but due to much time using, the screen resilience meeting of spring
Weaken, top on spring is closed shunting sliding sleeve, so as to cause gravel filling sand prevention to fail, or even can also cause oil gas
Well overhaul accident, therefore construction cost is added, reduce the utilization rate of Oil/gas Well.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model；
Accompanying drawing 2 is the structural representation of resilient mounting；
In figure：Filling pipe 1, shear pin 2, flow guide sleeve 5, shunting sliding sleeve 6, filling set 7, anti-turn screw 8, resilient mounting 9, baffle ring
10th, block short circuit 11, gear cap 12, lower contact 13, washing pipe joint 14, outer barrel 9.1, inner cylinder 9.2, centre bore 9.3, cavity 9.4, close
Seal 9.5, pressure ring 9.6.
Embodiment
Preferred embodiment of the present utility model is illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein excellent
Select embodiment to be merely to illustrate and explain the utility model, be not used to limit the utility model.
The utility model include filling pipe 1, shear pin 2, flow guide sleeve 5, shunting sliding sleeve 6, filling set 7, anti-turn screw 8, under connect
First 13, washing pipe joint 14, the lower end of filling pipe 1 and the upper end for short circuit 11 of blocking are connected through a screw thread, and solid by anti-turn screw 8
Fixed, the lower end and the upper end of gear cap 12 of short circuit 11 of blocking are connected through a screw thread, and lower end and the washing pipe joint 14 of gear cap 12 pass through spiral shell
Line is connected, and the outside of filling pipe 1 is connected by shear pin 2 with shunting sliding sleeve 6, between the outside of the shunting sliding sleeve 6 and baffle ring 10
Provided with resilient mounting 9, the downside of the baffle ring 10 is lower contact 13, and the outside and the lower end of filling set 7 of lower contact 13 pass through spiral shell
Line is connected, and is flexibly connected on the inside of the upper end of filling set 7 with shunting sliding sleeve 6, and outside is flexibly connected with flow guide sleeve 5, the resilience dress
Putting 9 includes outer barrel 9.1, inner cylinder 9.2, centre bore 9.3, cavity 9.4, sealing ring 9.5, pressure ring 9.6, is provided with inside outer barrel 9.1
Inner cylinder 9.2, centered on the inside of inner cylinder 9.2 hole 9.3, and cavity 9.4, cavity are formed between the inwall of outer barrel 9.1 and the outer wall of inner cylinder 9.2
Sealing ring 9.5 is provided with 9.4, the top connection pressure ring 9.6 of sealing ring 9.5, it is two that the utility model shunting sliding sleeve, which closes mode,
Kind, above carry filling pipe and drive top shunting sliding sleeve on shunting sliding sleeve mechanical closing and resilient mounting to close two kinds by shear pin shearing force
Closing mode, it is possible to increase the reliability that packing tool is closed.
Wherein, the bottom of the cavity 9.4 is sealing, makes sky cavity pressure consistent with ambient pressure.
In addition, the baffle ring 10 is loop configuration, internal diameter is less than the internal diameter of filling set 7, and the external diameter of baffle ring 10 is more than filling
The internal diameter of set 7, and the inwall downside for filling set 7 is provided with groove, top and the spring baffle ring 10 of the groove coordinate, and bottom is with
The outer wall of joint 13 coordinates.
In addition, the lower end inner wall protrusion of shunting sliding sleeve 6, pressure ring 9.6 are provided with groove, make the projective structure of shunting sliding sleeve 6
Insert in the groove on pressure ring 9.6 and be connected, shunting sliding sleeve, by pressure seal ring under pressure ring, is made in cavity by other pressure
Air pressure become big, shunting sliding sleeve is opened, and after active force disappears, the pressure of cavity can push up sealing-plug upwards, by being pushed up on pressure ring
Shunt on sliding sleeve, close packing tool.
In addition, the internal diameter of the pressure ring 9.6 is more than the diameter of inner cylinder 9.2, the external diameter of pressure ring 9.6 is less than the straight of outer barrel 9.1
Footpath.
Need to give up closing filling mouth when, filling mouth can be closed by above putting forward mode first.Filling pipe is above carried, will above be carried
Pulling force shunting sliding sleeve is passed to by shear pin, shunting sliding sleeve and filling set relative motion are so as to closing filling mouth.But instrument
Closing process is carried upper, due to the reason such as stratum and construction, certain sand may be stockpiled at mouth by filling, and cause filling pipe
Upper lifting power has exceeded the shearing force of shear pin, and shear pin is broken, and shunting sliding sleeve does not move up but, fill mouth can not close from
And sand control fails.Can now continue above to carry by filling pipe, block short circuit and washing pipe joint from packing tool go out.Tripping in is rushed
Pipe carries out sand-flushing, the sand accumulated in packing tool is washed out into instrument, the empty cavity pressure of resilient mounting can push up close upwards
Blocking, by being pushed up on pressure ring on shunting sliding sleeve, filling mouth is closed, prevents packing tool from shaking out.
It is two kinds that the utility model shunting sliding sleeve, which closes mode, above carries filling pipe and drives shunting sliding sleeve by shear pin shearing force
Top shunting sliding sleeve closes two kinds of closing modes on mechanical closing and resilient mounting, it is possible to increase the reliability that packing tool is closed,
Avoid but because much time using, the screen resilience of spring can weaken, top on spring is closed shunting sliding sleeve；The dress
Shunting sliding sleeve mechanical closing can be driven by above carrying filling pipe by shear pin shearing force by putting, and the device is provided with resilient mounting, returns
Play device and be provided with sealing ring and pressure ring, shunting sliding sleeve, by pressure seal ring under pressure ring, becomes the air pressure in cavity by other pressure
Greatly, shunt sliding sleeve to open, after active force disappears, the pressure of cavity can push up sealing-plug upwards, by pushing up shunting sliding sleeve on pressure ring
On, packing tool is closed, is avoided but because much time using, the screen resilience of spring can weaken, top on spring is made
Shunt sliding sleeve to close, so as to cause gravel filling sand prevention to fail, or even can also cause Oil/gas Well overhaul accident, therefore add and apply
Work cost, reduce the utilization rate of Oil/gas Well.
It is described above, only it is preferred embodiment of the present utility model, any those skilled in the art may profit
Equivalent technical scheme is changed the utility model or is revised as with the technical scheme of above-mentioned elaboration.Therefore, foundation
Any simple modification or substitute equivalents that the technical solution of the utility model is carried out, belong to the greatest extent the requires of the utility model protection
Scope.
Claims (5)
1. a kind of oil and gas exploitation well gravel-pack assembly, including filling pipe（1）, shear pin（2）, flow guide sleeve（5）, shunting
Sliding sleeve（6）, filling set（7）, anti-turn screw（8）, lower contact（13）, washing pipe joint（14）, filling pipe（1）Lower end it is short with blocking
Connect（11）Upper end be connected through a screw thread, and pass through anti-turn screw（8）It is fixed, short circuit of blocking（11）Lower end and gear cap（12）'s
Upper end is connected through a screw thread, gear cap（12）Lower end and washing pipe joint（14）It is connected through a screw thread, filling pipe（1）Outside pass through
Shear pin（2）With shunting sliding sleeve（6）Connection, it is characterized in that：The shunting sliding sleeve（6）Outside and baffle ring（10）Between be provided with resilience
Device（9）, the baffle ring（10）Downside be lower contact（13）, lower contact（13）Outside with filling cover（7）Lower end pass through
Threaded connection, filling set（7）Upper end on the inside of with shunting sliding sleeve（6）It is flexibly connected, outside and flow guide sleeve（5）It is flexibly connected, institute
State filling pipe（1）, shunting sliding sleeve（6）And filling set（7）Side wall be respectively equipped with through hole, three is formed through filling mouth, described
Resilient mounting（9）Including outer barrel（9.1）, inner cylinder（9.2）, centre bore（9.3）, cavity（9.4）, sealing ring（9.5）, pressure ring
（9.6）, in outer barrel（9.1）Inside is provided with inner cylinder（9.2）, inner cylinder（9.2）Hole centered on inside（9.3）, outer barrel（9.1）Inwall with
Inner cylinder（9.2）Cavity is formed between outer wall（9.4）, cavity（9.4）It is interior to be provided with sealing ring（9.5）, sealing ring（9.5）Top connect
Connect pressure ring（9.6）.
2. a kind of oil and gas exploitation well gravel-pack assembly according to claim 1, it is characterized in that：The cavity
（9.4）Bottom for sealing.
3. a kind of oil and gas exploitation well gravel-pack assembly according to claim 1, it is characterized in that：The baffle ring
（10）For loop configuration, internal diameter is less than filling and covered（7）Internal diameter, baffle ring（10）External diameter be more than filling cover（7）Internal diameter, and fill
Fill out set（7）Inwall on the downside of be provided with groove, the top of the groove and spring baffle ring（10）Coordinate, bottom and lower contact（13）'s
Outer wall coordinates.
4. a kind of oil and gas exploitation well gravel-pack assembly according to claim 1, it is characterized in that：Shunt sliding sleeve
（6）Lower end inner wall protrusion, pressure ring（9.6）Groove is provided with, makes shunting sliding sleeve（6）Projective structure insertion pressure ring（9.6）On
Groove in be connected.
5. a kind of oil and gas exploitation well gravel-pack assembly according to claim 1, it is characterized in that：The pressure ring
（9.6）Internal diameter be more than inner cylinder（9.2）Diameter, pressure ring（9.6）External diameter be less than outer barrel（9.1）Diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720333098.1U CN206830148U (en) | 2017-03-31 | 2017-03-31 | A kind of oil and gas exploitation well gravel-pack assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720333098.1U CN206830148U (en) | 2017-03-31 | 2017-03-31 | A kind of oil and gas exploitation well gravel-pack assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206830148U true CN206830148U (en) | 2018-01-02 |
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ID=60766704
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720333098.1U Active CN206830148U (en) | 2017-03-31 | 2017-03-31 | A kind of oil and gas exploitation well gravel-pack assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177571A (en) * | 2019-06-14 | 2021-01-05 | 中国石油化工股份有限公司 | Reservoir deficit sand control well gravel packing degree simulation experiment device and method |
-
2017
- 2017-03-31 CN CN201720333098.1U patent/CN206830148U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177571A (en) * | 2019-06-14 | 2021-01-05 | 中国石油化工股份有限公司 | Reservoir deficit sand control well gravel packing degree simulation experiment device and method |
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