CN203808883U - Constant-pressure sand washing pen point - Google Patents
Constant-pressure sand washing pen point Download PDFInfo
- Publication number
- CN203808883U CN203808883U CN201420060781.9U CN201420060781U CN203808883U CN 203808883 U CN203808883 U CN 203808883U CN 201420060781 U CN201420060781 U CN 201420060781U CN 203808883 U CN203808883 U CN 203808883U
- Authority
- CN
- China
- Prior art keywords
- pen point
- sand
- pressure sand
- level pressure
- nib
- 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.)
- Expired - Fee Related
Links
- 238000005406 washing Methods 0.000 title claims abstract description 74
- 239000004576 sand Substances 0.000 title abstract description 57
- 239000007921 spray Substances 0.000 claims description 21
- 239000012530 fluid Substances 0.000 claims description 18
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 4
- 239000003129 oil well Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 8
- 239000003921 oil Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000001066 destructive effect Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 208000001613 Gambling Diseases 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Nozzles (AREA)
Abstract
The utility model provides a level pressure sand washing nib is applicable to shallow oil well exploitation field. The constant-pressure sand washing pen point comprises a coupling, a one-way valve, a connector, a pen point body and a nozzle disc, wherein the coupling, the one-way valve, the connector and the pen point body are sequentially connected, and the nozzle disc is arranged in the connector. The circumference is equipped with a plurality of nozzles on this nozzle dish, and just a plurality of anti-blocking caps connect respectively before the sand washing operation in the injection end of a plurality of nozzles, the working end of nib body is nib form inclined plane, sets up an at least liquid hole on the working end lateral wall. The constant-pressure sand washing nib of the utility model increases the impact force of sand washing liquid, improves the sand washing efficiency, reduces the labor intensity of the construction site and reduces the degree of environmental pollution through the arrangement of the one-way valve and the plurality of nozzles; meanwhile, due to the arrangement of the anti-blocking cap, the possibility that the nozzle is blocked by impurities such as sand grains and the like in the well in the process of going into the well is avoided, and the working reliability of the whole device is improved.
Description
Technical field
The utility model relates to a kind of sand-washing pen point in petroleum production engineering field, espespecially a kind of level pressure sand-washing pen point.
Background technology
Sand-washing pen point is a kind of sand flushing device that oil exploitation engineering field is conventional, and its Main Function is to destroy sand bridge, and sand washing operation is carried out more efficiently.
In shallow-layer oil well sand washing process, because oil reservoir is more shallow and cementing truck discharge capacity is limited, simultaneously existing sand-washing pen point function is comparatively single, makes sand cleaning fluid reach the pressure of sand bridge less, to the destructive power deficiency of sand bridge, and then has affected sand washing effect; Meanwhile, be subject to sand-washing pen point structural limitations, sand-washing pen point before sand washing in decentralization process sand washing port easily there is sand plug and cannot proceed sand washing operation.
Therefore while, how effectively solving current middle-shallow layer oil well sand washing operation, impact force problem too small, that sand washing effect is undesirable just becomes a focus of field of petroleum exploitation.
Utility model content
Sand cleaning fluid impact force is too small when overcoming prior art middle-shallow layer oil well sand washing, sand washing effect is undesirable and the easily problem of gambling of sand-washing pen point, the utility model proposes a kind of level pressure sand-washing pen point.
The level pressure sand-washing pen point the utility model proposes, wherein, this level pressure sand-washing pen point comprises: the box cupling, one way valve, joint, the nib body that are connected successively, and be arranged on the spray nozzle plate of described joint inside; Described one way valve one end is connected with described box cupling, and the other end is connected with one end of described joint; The other end of described joint is connected with described nib body; Described spray nozzle plate is between described one way valve and described nib body, and described spray nozzle plate is provided with multiple spouts.
In a preferred embodiment, multiple nozzles are nested in respectively each described spout, and described nozzle is near the outstanding described spray nozzle plate in described nib body one end and form ejection end, and each described ejection end is equipped with an anti-blocking cap that can seal described nozzle.
In a preferred embodiment, described anti-blocking cap is threaded with described ejection end periphery wall, and described anti-blocking cap is made up of plastics or rubber.
In a preferred embodiment, described one way valve comprises valve body, and described valve body is provided with valve seat in one end, and described valve body is connected with ball cover near described spray nozzle plate one end, one end of one spring is resisted against described ball cover, and the other end is resisted against the valve ball that can be seated at described valve seat.
In a preferred embodiment, described joint inner chamber is provided with a ring boss, and described spray nozzle plate one end is connected to described boss, and the other end is connected to described nib body; Described spout forms the shoulder hole towards described nib body one side necking down, and described nozzle periphery wall forms the outer stepped cylindrical body matching with described spout, and described nozzle energy butt is embedded in described shoulder hole.
In a preferred embodiment, the endoporus of described nozzle is infundibulate, and described endoporus is taper shape near described boss one side and end face diameter is large end, and described endoporus is cylindrical near described ejection end one side.
In a preferred embodiment, described nozzle is threaded with described spout.
In a preferred embodiment, described nozzle periphery wall end can connect with described boss.
In a preferred embodiment, the outstanding described joint in described nib body lower end also forms a working end, and described working end is nib shape inclined-plane and a side is shortwall end, and opposite side is longwell end, described shortwall end is provided with at least one fluid hole, and described longwell end is provided with at least two fluid holes.
In a preferred embodiment, described spray nozzle plate is provided with circumferentially uniform described spout of three edges.
Level pressure sand-washing pen point of the present utility model is by the setting of one way valve, in the situation that ground cement car discharge capacity is limited, strengthen the liquid flow impact power of sand-washing pen point outlet, improve sand washing efficiency, alleviate on-the-spot labour intensity, reduced environmental simultaneously.
Meanwhile, spray nozzle plate top nozzle the further impact force that strengthens sand-washing pen point is set, improved sand washing efficiency.
On described nib body, nib shape inclined-plane is arranged so that this level pressure sand-washing pen point is stronger to the destructive power of sand bridge.
This level pressure sand-washing pen point possibility that nozzle is blocked by impurity such as sand grains in the process of going into the well has been avoided in the setting of anti-blocking cap, has ensured that the safety of sand washing operation is carried out.
The setting of fluid hole on the batch (-type) sand washing pattern of one way valve and nib body working end sidewall, dead oil in front this level pressure sand-washing pen point of sand washing is more easily removed, reduce the probability of this level pressure sand-washing pen point generation sand plug, can realize effectively the washing away of tubing string sidewall simultaneously, improve sand washing efficiency.
Box cupling, one way valve, joint, nib body, isostructural maintenance and the replacing that constructability scene is set of spray nozzle plate.
Brief description of the drawings
The following drawings is only intended to the utility model to do schematic explanation and explanation, not in order to limit the utility model.Wherein:
Fig. 1 is the section of structure of level pressure sand-washing pen point of the present utility model.
Drawing reference numeral explanation: 1-joint, 2-spray nozzle plate, 3-nozzle, the anti-blocking cap of 4-, 5-nib body, 6-box cupling, 7-valve body, 8-valve seat, 9-valve ball, 10-spring, 11-ball cover, 12-boss, 15-spout, 16-ejection end, 17-working end, 18-fluid hole, 19-shortwall end, 20-longwell end, 21-one way valve.
Detailed description of the invention
Understand existing accompanying drawings detailed description of the invention of the present utility model for technical characterictic of the present utility model, object and effect being had more clearly.
As shown in Figure 1, be the sectional drawing of the utility model one possible technique scheme level pressure sand-washing pen point.Wherein, this level pressure sand-washing pen point comprises: the box cupling 6, one way valve 21, joint 1, the nib body 5 that are connected successively, and be arranged on the spray nozzle plate 2 of joint 1 inside; Joint 1 inner chamber is provided with a ring boss 12; One way valve 21 two ends are connected with box cupling 6 and joint 1 respectively, for example, can be threaded connection, but connected mode is not limited to this, can also be that other are fixedly connected with mode, for example welding etc.; Nib body 5 is threaded with joint 1; Spray nozzle plate 2 one end are connected to boss 12, and the other end is connected to nib body 5; Spray nozzle plate 2 is circumferentially evenly equipped with three spouts 15.
In addition, each spout 15 forms the shoulder hole towards the 5 one side necking downs of nib body, and three nozzles 3 respectively butt are embedded in three spouts 15, and nozzle 3 periphery walls form the outer stepped cylindrical body matching with described shoulder hole.The periphery wall of nozzle 3 can connect with boss 12 away from the end of spray nozzle plate 2 axis one sides, and then nozzle 3 is played to axial limiting effect.In another embodiment, also nozzle 3 can be threaded with spout 15.One end of nozzle 3 extends to nib body 5 inside and forms ejection end 16.For ease of installing, ejection end 16 sectional areas are less than the sectional area of shoulder hole.Each ejection end 16 be threaded respectively can valve nozzles 3 anti-blocking cap 4, wherein, anti-blocking cap 4 is made up of plastics or rubber.In the time entering the sand cleaning fluid of nozzle 3 and reach certain pressure, sand cleaning fluid can wash out anti-blocking cap 4 and then start sand washing operation.In addition, anti-blocking cap 4 is not limited to be threaded with the connected mode of ejection end 16, and for example anti-blocking cap 4 also can cover and seal ejection end 16, or connects by other means, and anti-blocking cap 4 can separate with ejection end 16 in the time that sand cleaning fluid reaches certain pressure.
Further, one way valve 21 comprises valve body 7, and valve body is provided with valve seat 8 in 7 one end, and one end that valve body 7 is connected with ball cover 11, one springs 10 near boss 12 one end is resisted against ball cover 11, and the other end is resisted against the valve ball 9 that can be seated at valve seat 8.
In addition, the endoporus of nozzle 3 is infundibulate, and endoporus is that bellmouth and end face diameter are large end near boss 12 1 sides, and endoporus is cylindrical hole near ejection end 16 1 sides.
As shown in Figure 1, the outstanding joint 2 in nib body 5 one end also forms a working end 17, working end 17 is nib shape inclined-plane and a side is shortwall end 19, opposite side is longwell end 20, shortwall end 19 is provided with a fluid hole 18, longwell end 20 is provided with two fluid holes 18, and being provided with of those fluid holes helps the front removal to nib body 5 inner dead oils of sand washing operation, can reduce the possibility of sand-washing pen point generation sand plug simultaneously.
Further set forth the operating principle of the utility model level pressure sand-washing pen point below in conjunction with accompanying drawing.
When this level pressure sand-washing pen point work, first descended bottom hole spacing layer of sand certain altitude place, now anti-blocking cap 4 is all connected in described ejection end 16, and then prevents that the impurity such as down-hole sand grains from entering nozzle 3.Described box cupling 6 upper ends connect sand washing oil pipe.Suppress from ground oil conduit entrance, sand cleaning fluid enters this level pressure sand-washing pen point, in the time that pressure reaches the opening pressure of one way valve 21, one way valve is opened, sand cleaning fluid enters each described nozzle 3, under High Pressure, and the inefficacy that is threaded of the anti-blocking cap 4 of being made by plastics or rubber and ejection end 16, anti-blocking cap 4 is washed out, and then starts sand washing operation; When pressure reduces and during lower than the opening pressure of one way valve 21, under the effect of spring 10, one way valve 21 is closed, sand washing stops; In the time that pressure reaches not only the opening pressure of one way valve 21 but also start sand washing, so batch (-type) sand washing until sand washing finish.In sand washing process, the effect of nib body 5 is mainly to destroy sand bridge, and sand washing is carried out more efficiently.By the impact force that has increased sand cleaning fluid that arranges of one way valve 21 and multiple nozzle 3, improve sand washing efficiency.Anti-blocking cap 4 is protected nozzle in the process of going into the well, and avoids impurity particle to enter nozzle, has improved the functional reliability of whole device.On nib body 5 working ends 17, being provided with of fluid hole 18 helps the removal of dead oil in sand-washing pen point before sand washing, reduced the possibility of sand-washing pen point generation sand plug simultaneously.
The foregoing is only the schematic detailed description of the invention of the utility model, not in order to limit scope of the present utility model.Any those skilled in the art, is not departing from equivalent variations and the amendment under the prerequisite of design of the present utility model and principle, done, all should belong to the scope of the utility model protection.
Claims (10)
1. a level pressure sand-washing pen point, is characterized in that, described level pressure sand-washing pen point comprises: the box cupling, one way valve, joint, the nib body that are connected successively, and be arranged on the spray nozzle plate of described joint inside; Described one way valve one end is connected with described box cupling, and the other end is connected with one end of described joint; The other end of described joint is connected with described nib body; Described spray nozzle plate is between described one way valve and described nib body, and described spray nozzle plate is provided with multiple spouts.
2. level pressure sand-washing pen point as claimed in claim 1, it is characterized in that, multiple nozzles are nested in respectively each described spout, and described nozzle is near the outstanding described spray nozzle plate in described nib body one end and form ejection end, and each described ejection end is equipped with an anti-blocking cap that can seal described nozzle.
3. level pressure sand-washing pen point as claimed in claim 2, is characterized in that, described anti-blocking cap is threaded with described ejection end periphery wall, and described anti-blocking cap is made up of plastics or rubber.
4. level pressure sand-washing pen point as claimed in claim 1, it is characterized in that, described one way valve comprises valve body, described valve body is provided with valve seat in one end, described valve body is connected with ball cover near described spray nozzle plate one end, one end of one spring is resisted against described ball cover, and the other end is resisted against the valve ball that can be seated at described valve seat.
5. level pressure sand-washing pen point as claimed in claim 2, is characterized in that, described joint inner chamber is provided with a ring boss, and described spray nozzle plate one end is connected to described boss, and the other end is connected to described nib body; Described spout forms the shoulder hole towards described nib body one side necking down, and described nozzle periphery wall forms the outer stepped cylindrical body matching with described spout, and described nozzle energy butt is embedded in described shoulder hole.
6. level pressure sand-washing pen point as claimed in claim 5, is characterized in that, the endoporus of described nozzle is infundibulate, and described endoporus is taper shape near described boss one side and end face diameter is large end, and described endoporus is cylindrical near described ejection end one side.
7. level pressure sand-washing pen point as claimed in claim 5, is characterized in that, described nozzle is threaded with described spout.
8. level pressure sand-washing pen point as claimed in claim 5, is characterized in that, described nozzle periphery wall end can connect with described boss.
9. level pressure sand-washing pen point as claimed in claim 1, it is characterized in that, the outstanding described joint in described nib body lower end also forms a working end, described working end is nib shape inclined-plane and a side is shortwall end, opposite side is longwell end, described shortwall end is provided with at least one fluid hole, and described longwell end is provided with at least two fluid holes.
10. the level pressure sand-washing pen point as described in claim 1 to 9 any one, is characterized in that, described spray nozzle plate is provided with circumferentially uniform described spout of three edges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420060781.9U CN203808883U (en) | 2014-02-10 | 2014-02-10 | Constant-pressure sand washing pen point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420060781.9U CN203808883U (en) | 2014-02-10 | 2014-02-10 | Constant-pressure sand washing pen point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203808883U true CN203808883U (en) | 2014-09-03 |
Family
ID=51447656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420060781.9U Expired - Fee Related CN203808883U (en) | 2014-02-10 | 2014-02-10 | Constant-pressure sand washing pen point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203808883U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997543A (en) * | 2019-05-27 | 2020-11-27 | 中国石油天然气股份有限公司 | Reamer type sand washing pen point |
-
2014
- 2014-02-10 CN CN201420060781.9U patent/CN203808883U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997543A (en) * | 2019-05-27 | 2020-11-27 | 中国石油天然气股份有限公司 | Reamer type sand washing pen point |
| CN111997543B (en) * | 2019-05-27 | 2022-06-03 | 中国石油天然气股份有限公司 | Reamer type sand washing pen point |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20220210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |