CN207420556U - Horizontal well sand-blockage fracturing device - Google Patents
Horizontal well sand-blockage fracturing device Download PDFInfo
- Publication number
- CN207420556U CN207420556U CN201721587399.3U CN201721587399U CN207420556U CN 207420556 U CN207420556 U CN 207420556U CN 201721587399 U CN201721587399 U CN 201721587399U CN 207420556 U CN207420556 U CN 207420556U
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- China
- Prior art keywords
- central tube
- support tube
- tube
- sand
- blockage
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Abstract
The utility model discloses horizontal well sand-blockage fracturing devices, relate generally to packer technology field.Including central tube, the top of the central tube is equipped with top connection, the central tube is equipped with packing element, the lower part of the central tube is equipped with support ring, the top of the central tube is equipped with extrusion ring, the upside of the extrusion ring is equipped with the first support tube, the bottom of first support tube is equipped with piston, the second support tube is equipped in first support tube, the top of second support tube is equipped with supporting block, top connection is equipped with the first feed pathway, the supporting block is equipped with the second feed pathway, the bottom of the central tube is equipped with universal joint, the bottom of the universal joint is equipped with sand-blockage oil inlet pipe, the bottom of the sand-blockage oil inlet pipe is equipped with lower contact.The beneficial effects of the utility model are：It can solve the problems, such as the sand plug of horizontal well, can be convenient for go into the well, have it is simple in structure, unseal the characteristics of facilitating.
Description
Technical field
The utility model is related to packer technology fields, are specifically horizontal well sand-blockage fracturing device.
Background technology
Packer is the critical facility in oil extraction in oil field, and existing packer mainly has the structure compositions such as central tube, packing element,
Its structure is mostly brace type, the extensive use in the fracturing string of open well, but is asked in the pressure break of horizontal well there is following
Topic, 1., there is the phenomenon that deblocking difficulty；2., in the staged fracturing well of horizontal well in use, there is difficult asking of going into the well
Topic；3., there is serious sand plug phenomenon, security reliability is poor.
Utility model content
The purpose of this utility model is to provide horizontal well sand-blockage fracturing device, the sand plug that it can solve horizontal well is asked
Topic, can be convenient for go into the well, have it is simple in structure, unseal the characteristics of facilitating.
The utility model to achieve the above object, is achieved through the following technical solutions：
Horizontal well sand-blockage fracturing device, including central tube, the top of the central tube is equipped with top connection, the central tube
Packing element is equipped with, the lower part of the central tube is equipped with the support ring being adapted with packing element, and the top of the central tube is equipped with and glue
The adaptable extrusion ring of cylinder, the extrusion ring are slidably connected with central tube, and the upside of the extrusion ring is equipped with the first support tube, institute
The bottom for stating the first support tube is equipped with the piston being adapted with extrusion ring, and the piston is set on central tube and is slided with central tube
Dynamic connection, first support tube is interior to be equipped with the second support tube, and sealing is equipped between second support tube and the first support tube
Circle, second support tube are slidably connected with the first support tube, and the internal diameter of second support tube is more than the outer diameter of central tube, institute
The top for stating the second support tube is equipped with supporting block, and the supporting block is fixedly connected with top connection, and the top connection is equipped with first
Feed pathway, the supporting block are equipped with the second feed pathway, second feed pathway connect the second support tube and first into
Liquid passage, the bottom of the central tube are equipped with universal joint, and the bottom of the universal joint is equipped with sand-blockage oil inlet pipe, described anti-
The bottom of sand plug oil inlet pipe is equipped with lower contact.
The upper and lower ends of the packing element are equipped with snap ring, and the top of the support ring, the bottom of extrusion ring are equipped with and block
The card slot that ring is adapted.
The sand-blockage oil inlet pipe includes wire-wrapped screen, and the oil inlet being connected with universal joint is equipped in the wire-wrapped screen
Pipe, the oil inlet pipe are equipped with fuel feed hole, several connecting poles, the oil inlet pipe are equipped between the oil inlet pipe and wire-wrapped screen
Gravel is filled in gap between wire-wrapped screen.
The prior art is compared, the beneficial effects of the utility model are：
1st, the extrusion ring of the utility model can be slided up and down along central tube, and when extrusion ring moves down, packing element is compressed,
Packing element radially expands, and during pressure break, highly pressurised liquid is passed through the second support tube along the first feed pathway, the second feed pathway
In, piston can be pushed down on, piston is pressed down against packing element, packing element can be made radially to expand, and completes the pressure break of horizontal well,
During deblocking, highly pressurised liquid is extracted out, you can restore packing element, can be rapidly performed by unsealing, fluid by sand-blockage oil inlet pipe into
Enter central tube, the gravel in fluid can be filtered, can solve the problems, such as the sand plug of horizontal well, sand-blockage oil inlet pipe passes through Universal connector
Head be connected with central tube, when going into the well, the utility model is flexible, can be convenient for go into the well, have it is simple in structure, unseal easily
Feature.
2nd, the upper and lower ends of the packing element of the utility model are equipped with snap ring, the top of the support ring, the bottom of extrusion ring
The card slot being adapted with snap ring is equipped with, the contact area between support ring, extrusion ring and packing element can be increased, glue can be avoided
Cylinder comes off.
3rd, the sand-blockage oil inlet pipe of the utility model includes wire-wrapped screen, is equipped in the wire-wrapped screen and connects with universal joint
The oil inlet pipe connect, the oil inlet pipe are equipped with fuel feed hole, several connecting poles, institute are equipped between the oil inlet pipe and wire-wrapped screen
It states in the gap between oil inlet pipe and wire-wrapped screen and forms double-deck interception filtration system with gravel filled with gravel, wire-wrapped screen,
It can ensure that liquid flows through and stops that reservoir sand enters in well, can effectively control and shake out.
Description of the drawings
Attached drawing 1 is the structure diagram of the utility model；
Attached drawing 2 is the attachment structure schematic diagram of packing element；
Attached drawing 3 is the structure diagram of sand-blockage oil inlet pipe.
Attached figure label：1st, central tube；2nd, top connection；3rd, packing element；4th, support ring；5th, extrusion ring；6th, the first support tube；7、
Piston；8th, the second support tube；9th, sealing ring；10th, supporting block；11st, the first feed pathway；12nd, the second feed pathway；13rd, it is universal
Connector；14th, sand-blockage oil inlet pipe；15th, lower contact；16th, snap ring；17th, card slot；18th, wire-wrapped screen；19th, oil inlet pipe；20th, connect
Column.
Specific embodiment
With reference to specific embodiment, the utility model is expanded on further.It is to be understood that these embodiments are merely to illustrate this
Utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, reading the content of the utility model instruction
Afterwards, those skilled in the art can make various changes or modifications the utility model, and such equivalent forms equally fall within this Shen
It please limited range.
Described in the utility model is horizontal well sand-blockage fracturing device, and including central tube 1, the top of the central tube 1 is set
There is top connection 2, the central tube 1 is equipped with packing element 3, and packing element 3 is sleeved on central tube 1.The lower part of the central tube 1 be equipped with
The adaptable support ring 4 of packing element 3, support ring 4 are fixedly connected with central tube 1, and support ring 4 provides support for packing element 3.The center
The top of pipe 1 is equipped with the extrusion ring 5 being adapted with packing element 3, and the extrusion ring 5 is slidably connected with central tube 1, and extrusion ring 5 is sleeved on
On central tube 1, extrusion ring 5 can be slided up and down along central tube 1, and when extrusion ring 5 moves down, packing element 3 is compressed, 3 edge of packing element
It is radially expanded.The upside of the extrusion ring 5 is equipped with the first support tube 6, and the bottom of first support tube 6 is equipped with and extrusion ring
5 adaptable pistons 7, the piston 7 are set on central tube 1 and are slidably connected with central tube 1, and piston 7 can be along central tube 1
It slides up and down.The second support tube 8 is equipped in first support tube 6, is set between 8 and first support tube 6 of the second support tube
There is sealing ring 9, second support tube 8 is slidably connected with the first support tube 6, and the first support tube 6 can be slided along the second support tube 8
Dynamic, the internal diameter of second support tube 8 is more than the outer diameter of central tube 1, the second support tube 8, the first support tube 6 and central tube 1 it
Between formed to accommodate the cavity of highly pressurised liquid, sealing ring 9 can ensure the leakproofness of cavity.The top of second support tube 8
Portion is equipped with supporting block 10, and the supporting block 10 is fixedly connected with top connection 2, and the top connection 2 is equipped with the first feed pathway 11,
The supporting block 10 is equipped with the second feed pathway 12, and second feed pathway 12 connects the second support tube 8 and the first feed liquor
During pressure break, highly pressurised liquid is passed through along the first feed pathway 11, the second feed pathway 12 in the second support tube 8 for passage 11, can
Piston 7 is pushed down on, piston 7 is pressed down against packing element 3, and packing element 3 can be made radially to expand, and completes the pressure break of horizontal well, solution
Feng Shi extracts highly pressurised liquid out, you can restores packing element 3, can be rapidly performed by unsealing.The bottom of the central tube 1 is equipped with
Universal joint 13, the bottom of the universal joint 13 are equipped with sand-blockage oil inlet pipe 14, and the bottom of the sand-blockage oil inlet pipe 14 is set
There is lower contact 15, fluid enters central tube 1 by sand-blockage oil inlet pipe 17, can filter the gravel in fluid, can solve level
The sand plug problem of well, sand-blockage oil inlet pipe is connected by universal joint 13 with central tube 1, when going into the well, the utility model bendable
Song, can be convenient for go into the well, have it is simple in structure, unseal the characteristics of facilitating.
In order to avoid packing element comes off, the upper and lower ends of the packing element 3 are equipped with snap ring 16, and the top of the support ring 4 is squeezed
The bottom of pressure ring 5 is equipped with the card slot 17 being adapted with snap ring 16, can increase between support ring 4, extrusion ring 5 and packing element 3
Contact area can avoid packing element from coming off.
It shakes out to effectively control, the sand-blockage oil inlet pipe 14 includes wire-wrapped screen 18, is set in the wire-wrapped screen 18
There is the oil inlet pipe 19 being connected with universal joint 13, the oil inlet pipe 19 is equipped with fuel feed hole, the oil inlet pipe 19 and wire-wrapped screen
Several connecting poles 20 are equipped between 18, gravel, wrapping wire are filled in the gap between the oil inlet pipe 19 and wire-wrapped screen 18
Screen casing 18 forms double-deck interception filtration system with gravel, can ensure that liquid flows through and stops that reservoir sand enters in well, Neng Gouyou
Effect control is shaked out.
Embodiment：Described in the utility model is horizontal well sand-blockage fracturing device, including central tube 1, the central tube 1
Top is equipped with top connection 2, and the central tube 1 is equipped with packing element 3, and packing element 3 is sleeved on central tube 1.The lower part of the central tube 1
Equipped with the support ring 4 being adapted with packing element 3, using integral structure between support ring 4 and central tube 1, support ring 4 is packing element 3
Support is provided.The top of the central tube 1 is equipped with the extrusion ring 5 being adapted with packing element 3, and the internal diameter of the extrusion ring 5 is slightly larger than
The outer diameter of central tube 1, extrusion ring 5 are sleeved on central tube 1, and extrusion ring 5 can be slided up and down along central tube 1, and extrusion ring 5 is to moving down
When dynamic, packing element 3 is compressed, and packing element 3 radially expands.The upper and lower ends of the packing element 3 are equipped with snap ring 16, snap ring 16 and glue
It is an integral structure between cylinder 3, top, the bottom of extrusion ring 5 of the support ring 4 are equipped with the card slot being adapted with snap ring 16
17, the contact area between support ring 4, extrusion ring 5 and packing element 3 can be increased, packing element can be avoided to come off.The extrusion ring 5
Upside be equipped with the first support tube 6, the bottom of first support tube 6 is equipped with the piston 7 being adapted with extrusion ring 5, piston 7 with
It is set on central tube 1 and can glide along central tube 1 using integral structure, the piston 7 between first support tube 6
It is dynamic.The second support tube 8 is equipped in first support tube 6, sealing is equipped between 8 and first support tube 6 of the second support tube
Circle 9, second support tube 8 is slidably connected with the first support tube 6, and the first support tube 6 can be slided along the second support tube 8, institute
The internal diameter for stating the second support tube 8 is more than the outer diameter of central tube 1, is formed between the second support tube 8, the first support tube 6 and central tube 1
For accommodating the cavity of highly pressurised liquid, sealing ring 9 can ensure the leakproofness of cavity.The top of second support tube 8 is equipped with
Supporting block 10 passes through screw and top connection between 10 and second support tube 8 of supporting block using integral structure, the supporting block 10
2 are fixedly connected, and the first feed pathway 11 is offered in the top connection 2, the second feed pathway is offered in the supporting block 10
12, second feed pathway 12 connects the second support tube 8 and the first feed pathway 11, during pressure break, by highly pressurised liquid along first
Feed pathway 11, the second feed pathway 12 are passed through in the second support tube 8, can push down on piston 7, and piston 7 is pressed down against glue
Cylinder 3, can be such that packing element 3 radially expands, and complete the pressure break of horizontal well, during deblocking, highly pressurised liquid be extracted out, you can make packing element
3 restore, and can be rapidly performed by unsealing.The bottom of the central tube 1 is equipped with universal joint 13, and the bottom of universal joint 13 is equipped with
Sand-blockage oil inlet pipe 14, the bottom of sand-blockage oil inlet pipe 14 are equipped with lower contact 15, and fluid enters center by sand-blockage oil inlet pipe 17
Pipe 1 can filter the gravel in fluid, can solve the problems, such as the sand plug of horizontal well, and sand-blockage oil inlet pipe passes through universal joint 13
It is connected with central tube 1, when going into the well, the utility model is flexible, can be convenient for going into the well, and has simple in structure, and deblocking is convenient
Feature.The sand-blockage oil inlet pipe 14 includes wire-wrapped screen 18, is equipped with what is be connected with universal joint 13 in the wire-wrapped screen 18
Oil inlet pipe 19, the oil inlet pipe 19 are equipped with fuel feed hole, several connections are equipped between the oil inlet pipe 19 and wire-wrapped screen 18
Column 20 forms bilayer in the gap between the oil inlet pipe 19 and wire-wrapped screen 18 filled with gravel, wire-wrapped screen 18 with gravel
Filtration system is intercepted, can ensure that liquid flows through and stops that reservoir sand enters in well, can effectively control and shake out.
Claims (3)
1. horizontal well sand-blockage fracturing device, including central tube (1), the top of the central tube (1) is equipped with top connection (2), institute
Central tube (1) is stated equipped with packing element (3), it is characterised in that：The lower part of the central tube (1) is equipped with what is be adapted with packing element (3)
Support ring (4), the top of the central tube (1) are equipped with the extrusion ring (5) being adapted with packing element (3), and the extrusion ring (5) is in
Heart pipe (1) is slidably connected, and the upside of the extrusion ring (5) is equipped with the first support tube (6), the bottom of first support tube (6)
Equipped with the piston (7) being adapted with extrusion ring (5), the piston (7) is set on central tube (1) and is slided with central tube (1)
Connection, is equipped with the second support tube (8) in first support tube (6), second support tube (8) and the first support tube (6) it
Between be equipped with sealing ring (9), second support tube (8) is slidably connected with the first support tube (6), second support tube (8)
Internal diameter is more than the outer diameter of central tube (1), and the top of second support tube (8) is equipped with supporting block (10), the supporting block (10)
It is fixedly connected with top connection (2), the top connection (2) is equipped with the first feed pathway (11), and the supporting block (10) is equipped with
Second feed pathway (12), second feed pathway (12) connects the second support tube (8) and the first feed pathway (11), described
The bottom of central tube (1) is equipped with universal joint (13), and the bottom of the universal joint (13) is equipped with sand-blockage oil inlet pipe (14), institute
The bottom for stating sand-blockage oil inlet pipe (14) is equipped with lower contact (15).
2. horizontal well sand-blockage fracturing device according to claim 1, it is characterised in that：Up and down the two of the packing element (3)
End is equipped with snap ring (16), and top, the bottom of extrusion ring (5) of the support ring (4) are equipped with what is be adapted with snap ring (16)
Card slot (17).
3. horizontal well sand-blockage fracturing device according to claim 1, it is characterised in that：The sand-blockage oil inlet pipe (14)
Be equipped with the oil inlet pipe (19) being connected with universal joint (13) including wire-wrapped screen (18), in the wire-wrapped screen (18), it is described into
Oil pipe (19) is equipped with fuel feed hole, several connecting poles (20), institute are equipped between the oil inlet pipe (19) and wire-wrapped screen (18)
It states and gravel is filled in the gap between oil inlet pipe (19) and wire-wrapped screen (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721587399.3U CN207420556U (en) | 2017-11-23 | 2017-11-23 | Horizontal well sand-blockage fracturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721587399.3U CN207420556U (en) | 2017-11-23 | 2017-11-23 | Horizontal well sand-blockage fracturing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207420556U true CN207420556U (en) | 2018-05-29 |
Family
ID=62304400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721587399.3U Expired - Fee Related CN207420556U (en) | 2017-11-23 | 2017-11-23 | Horizontal well sand-blockage fracturing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207420556U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989732A (en) * | 2019-03-25 | 2019-07-09 | 中国石油化工股份有限公司 | A kind of flexibility screen casing and sand control completion tubing string and its application method |
-
2017
- 2017-11-23 CN CN201721587399.3U patent/CN207420556U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989732A (en) * | 2019-03-25 | 2019-07-09 | 中国石油化工股份有限公司 | A kind of flexibility screen casing and sand control completion tubing string and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180529 Termination date: 20181123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |