CN204371622U - Sand-proof oil-well pump - Google Patents
Sand-proof oil-well pump Download PDFInfo
- Publication number
- CN204371622U CN204371622U CN201420779980.5U CN201420779980U CN204371622U CN 204371622 U CN204371622 U CN 204371622U CN 201420779980 U CN201420779980 U CN 201420779980U CN 204371622 U CN204371622 U CN 204371622U
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- China
- Prior art keywords
- sand
- valve
- pump barrel
- pump
- fixedly connected
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- 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
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- 239000003129 oil well Substances 0.000 title claims abstract description 36
- 239000004576 sand Substances 0.000 claims abstract description 97
- 239000000945 filler Substances 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
Landscapes
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
The utility model discloses a kind of sand-proof oil-well pump, it comprises: outer pump barrel, and its upper end is fixed on oil pipe by pump box cupling, and its lower end is connected with storage sand assembly by duplex fitting; Described duplex fitting sidewall is provided with radial filler opening, and the sand setting hole of axis; Interior pump barrel, it is set in described outer pump barrel, and itself and described outer pump barrel form the sand setting passage of annular space, described sand setting passage successively with described sand setting hole, store up sand assembly and be connected; Pull bar, it is located in described interior pump barrel, and its lower end is connected with plunger; Sand block part, it is set on described pull bar slidably, and can by the upper end closed of described interior pump barrel; Traveling valve, it is connected to the upper end of described plunger.Sand-proof oil-well pump described in the utility model, it effectively can reduce sand card phenomenon.
Description
Technical field
The utility model relates to a kind of high oil production equipment containing the lifting of sand oil well, particularly a kind of sand-proof oil-well pump.
Background technique
High have aborning containing sand oil well that output is high, serious, the feature such as pump efficiency is low of shaking out.Under production conditions, along with the to-and-fro motion of plunger, when height is sucked oil well pump containing sand oil, the sand grains of fluid high speed movement can carry out repeated stock to critical components such as the valve ball valve seats of oil well pump.Once there is sand grains to be stuck in the joint of valve ball and valve seat, can corrode the position that valve ball contacts with valve base sealing and be stung Lou under prolonged and repeated high speed grit impact, thus cause valve ball, valve seat place poorly sealed, and then pump efficiency step-down, even not fuel-displaced, oil well output finally can be caused to subtract greatly.
Therefore be necessary to propose a kind of can the sand-proof oil-well pump of sands-proof check.
Model utility content
The purpose of this utility model is to provide a kind of sand-proof oil-well pump, and it effectively can reduce sand card phenomenon.
Above-mentioned purpose of the present utility model can adopt following technical proposal to realize:
A kind of sand-proof oil-well pump, comprising: outer pump barrel, its upper end is fixed on oil pipe by pump box cupling, and its lower end is connected with storage sand assembly by duplex fitting; Described duplex fitting sidewall is provided with radial filler opening, and the sand setting hole of axis; Interior pump barrel, it is set in described outer pump barrel, and itself and described outer pump barrel form the sand setting passage of annular space, described sand setting passage successively with described sand setting hole, store up sand assembly and be connected; Pull bar, it is located in described interior pump barrel, and its lower end is connected with plunger; Sand block part, it is set on described pull bar slidably, and can by the upper end closed of described interior pump barrel; Traveling valve, it is connected to the upper end of described plunger.
In a preferred embodiment, the lower end of described interior pump barrel is provided with standing valve by pump box cupling, described standing valve is twin-stage standing valve, it comprises standing valve cover, the outside of fixed valve bonnet upper end is fixedly connected with described pump box cupling, the inner side of its lower end is fixedly connected with lower standing valve cover, fixed valve base is equipped with in fixed valve bonnet, fixed valve seat is provided with fixed valve ball, the outside of described lower standing valve cover upper end is fixedly connected with the inner side of fixed valve bonnet, its lower end to be connected with described duplex fitting by standing valve joint and to be connected with the filler opening of described duplex fitting, lower fixed valve base is equipped with in described lower standing valve cover, described lower fixed valve base is provided with lower fixed valve ball.
In a preferred embodiment, the filler opening place of described duplex fitting is arranged with filter screen.
In a preferred embodiment, the lower end of described pull bar is connected with delivery connection, upper travelling valve in turn, and described upper delivery connection upper end is used for being fixedly connected with described pull bar, and lower end is used for being fixedly connected with described traveling valve; Described upper delivery connection is provided with oil outlet, and described oil outlet is connected with described interior pump barrel top.
In a preferred embodiment, described traveling valve, it comprises travelling valve bonnet, the inner side of described travelling valve bonnet upper end is fixedly connected with described upper delivery connection, the inner side of its lower end is connected with plunger connector, and be provided with valve seat in described travelling valve bonnet, described valve seat is provided with travelling valve ball.
In a preferred embodiment, described plunger is the tube structure of hollow, and its upper end is connected with described traveling valve by described plunger connector, and is connected with described traveling valve; Its lower end is connected with described duplex fitting.
In a preferred embodiment, described storage sand assembly comprises the joint, sand storing tube, the plug that connect successively from top to bottom,
The outside of described upper end of joint is fixedly connected with described duplex fitting, and the inner side of its lower end is fixedly connected with described sand storing tube; Described sand storing tube is the cylindrical shell of hollow, and the outside of its upper end is fixed on described joint, and the outside of its lower end is fixedly connected with described plug;
Described plug is fixed on the lower end of described sand storing tube, for by described sand storing tube lower end closed.
In a preferred embodiment, the position that described sand block part coordinates with described interior pump barrel can be provided with the engagement portion of taper, and the upper end of corresponding described interior pump barrel is also provided with the conical surface matched with the engagement portion of described sand block part.
In a preferred embodiment, centralizer is provided with between described outer pump barrel and described interior pump barrel.
Feature of the present utility model and advantage are: sand-proof oil-well pump described in the utility model, can by the sand block part of interior pump barrel upper end closed by arranging on described pull bar, can effectively reduce in plunger reciprocates process sand setting by interior pump barrel, plunger, enter the sand grains of standing valve, therefore the valve ball of standing valve and valve seat place sand card phenomenon greatly reduce; Standing valve described in the utility model is twin-stage standing valve in addition, and it effectively can reduce the leakage situation that standing valve operationally occurs, thus is conducive to reliability and the life-span of improving valve body.
Accompanying drawing explanation
Fig. 1 is a kind of sand-proof oil-well pump structural representation in the utility model embodiment;
Fig. 2 is the descending schematic diagram of a kind of sand-proof oil-well pump plunger in the utility model embodiment;
Fig. 3 is the up schematic diagram of a kind of sand-proof oil-well pump plunger in the utility model embodiment.
Embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is elaborated, these embodiments should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen in the application's claims limited range.
The utility model provides a kind of sand-proof oil-well pump, and it effectively can reduce sand card phenomenon, extends pump detection period.Referring to Fig. 1, is sand-proof oil-well pump structural representation a kind of in the utility model embodiment.Described sand-proof oil-well pump mainly comprises: outer pump barrel 1, interior pump barrel 2, pull bar 3, sand block part 4, traveling valve 5, storage sand assembly 6, plunger 7.Wherein, outer pump barrel 1, its upper end is fixed on oil pipe by pump box cupling, and its lower end is connected with storage sand assembly 6 by duplex fitting 11; Described duplex fitting 11 sidewall is provided with radial filler opening 111, and the sand setting hole 112 of axis; Interior pump barrel 2, it is set in described outer pump barrel 1, and itself and described outer pump barrel 1 form the sand setting passage 12 of annular space, described sand setting passage 12 successively with the sand setting hole 111 of described duplex fitting 11, store up sand assembly 6 and be connected; Pull bar 3, it is located in described interior pump barrel 2, and its lower end is connected with plunger 7; Sand block part 4, it is set on described pull bar 3 slidably, and can by the upper end closed of described interior pump barrel 2; Traveling valve 5, it is connected to the upper end of described plunger 7; Standing valve 8, it is fixed on the lower end of described interior pump barrel 2 by pump box cupling 28.
Concrete, the tube structure of described outer pump barrel 1 entirety in hollow, it is positioned at the outermost surface of whole sand-proof oil-well pump, its have back to top and bottom, the upper end of described outer pump barrel 1 is fixed on oil pipe by pump box cupling, and the inner side of the lower end of described outer pump barrel 1 is fixed with duplex fitting 11.Filler opening 111 place of described duplex fitting 11 is arranged with filter screen 13.Described filter screen 13 can will enter isolating containing the sand grains in sand fluid of oil well pump.The lower end of described duplex fitting 11 is fixed with storage sand assembly 6.Described duplex fitting 11 sidewall is provided with radial filler opening 111, and the sand setting hole 112 of axis.The internal sleeve of described outer pump barrel 1 is provided with interior pump barrel 2.
The tube structure of described interior pump barrel 2 entirety in hollow, it is set in the inside of described outer pump barrel 1, to form the annular pass 12 for sand setting, described sand setting passage 12 successively with the sand setting hole 111 of described duplex fitting 11, store up sand assembly 6 and be connected.Described interior pump barrel 2 have back to top and bottom, its inside, upper end is equipped with pull bar 3, and its lower end is fixedly connected with standing valve 8 by arranging pump box cupling 28.Centralizer 9 is provided with, for carrying out righting to described interior pump barrel 2 between described outer pump barrel 1 and described interior pump barrel 2.
Described standing valve 8 is the twin-stage standing valve be in series by upper standing valve, lower standing valve, and it comprises standing valve cover 81, and the outside of fixed valve bonnet 81 upper end is fixedly connected with described pump box cupling 28, and the inner side of its lower end is fixedly connected with lower standing valve cover 84.Be equipped with fixed valve base 83 in fixed valve bonnet 81, fixed valve seat 83 is provided with fixed valve ball 82.The outside of described lower standing valve cover 84 upper end is fixedly connected with the inner side of fixed valve bonnet 81, and its lower end to be connected with described duplex fitting 11 by standing valve joint 87 and to be connected with the filler opening 111 of described duplex fitting 11.Be equipped with lower fixed valve base 86 in described lower standing valve cover 84, described lower fixed valve base 86 is provided with lower fixed valve ball 85.Because described standing valve 8 is twin-stage standing valve structure, when there is leakage in upper standing valve or lower standing valve, under relative another one, standing valve or upper standing valve are in the state of normal work, therefore effectively can reduce the leakage situation that standing valve 8 operationally occurs, thus be conducive to reliability and the life-span of improving valve body.
Described pull bar 3, it is located in described interior pump barrel 2, and its lower end is connected with plunger 7.Concrete, the lower end of described pull bar 3 is connected with delivery connection 45, upper travelling valve 5, plunger connector 57, plunger 7 in turn.
Described upper delivery connection 45 upper end is used for being fixedly connected with described pull bar 3, and lower end is used for being fixedly connected with described traveling valve 5.Described upper delivery connection 45 is provided with oil outlet 450, and described oil outlet 450 is connected with the fuel-displaced space A on described interior pump barrel 2 top, for the fluid in plunger 7 being entered in plunger 7 the fuel-displaced space A on interior pump barrel 2 top.
Described traveling valve 5, it comprises a travelling valve bonnet 51, and the inner side of described travelling valve bonnet 51 upper end is fixedly connected with described upper delivery connection 45, and the inner side of its lower end is connected with plunger connector 57, be provided with valve seat 53 in described travelling valve bonnet 51, described valve seat 53 is provided with travelling valve ball 52.
The tube structure of described plunger connector 57 entirety in hollow, the outside of its upper end is connected with travelling valve bonnet 51, and the outside of its lower end is connected with described plunger 7.
The tube structure of described plunger 7 entirety in hollow, its upper end is connected with described traveling valve 5 by described plunger connector 57, and is connected with described traveling valve 5; Its lower end is connected with described duplex fitting 11.When described plunger 7 pumps under the drive of pull bar 3, can enter in plunger 7 from the filler opening 111 of described duplex fitting 11 containing sand fluid in the pit shaft at oil well pump place, and then the upper space A of interior pump barrel 2 is entered by the oil outlet 45 of described upper delivery connection 45, then gone out pit shaft by lifting.
Described storage sand assembly 6, it comprises the joint 61, sand storing tube 62, the plug 63 that connect successively from top to bottom.The outside of described joint 61 upper end is fixedly connected with described duplex fitting 11, and the inner side of its lower end is fixedly connected with described sand storing tube 62.The cylindrical shell of described sand storing tube 62 entirety in hollow, the outside of its upper end is fixed on described joint 61, and the outside of its lower end is fixedly connected with described plug 63.Described plug 63 is fixed on the lower end of described sand storing tube 62, for by described sand storing tube 62 lower end closed.
Described sand block part 4, it is set on described pull bar 3 slidably, and can by the upper end closed of described interior pump barrel 2.Concrete, the position that described sand block part 4 coordinates with described interior pump barrel 2 can be provided with the engagement portion 40 of taper, and the upper end of corresponding described interior pump barrel 2 is also provided with the conical surface 20 matched with the engagement portion 40 of described sand block part 4.
When sand-proof oil-well pump described in the utility model uses, refer to Fig. 2, the descending schematic diagram of a kind of sand-proof oil-well pump plunger in the utility model embodiment.Transfer pull bar 3, plunger 7 is descending, and now the traveling valve 5 of plunger 7 upper end is in open mode, is entered the fuel-displaced space A on interior pump barrel 2 top containing sand fluid by described traveling valve 5, but because sand block part 4 upper end is under hydraulic pressure effect, sand block part 4 is in closed state with the upper end of described interior pump barrel 2.
Refer to Fig. 3, the up schematic diagram of a kind of sand-proof oil-well pump plunger in the utility model embodiment.Upper lifting rod 3, plunger 7 is up, and now the traveling valve 5 of plunger 7 upper end is in closed state, and under the upper lifting force effect of pull bar 3, the sand fluid that contains in fuel-displaced space A backs down sand block plate 4, upwards lifting.Flow out described fuel-displaced space A described containing sand fluid, in the process of upwards lifting, described oil can be separated with the effect of sand due to gravity, and the sand grains that density is larger can sedimentation downwards gradually.When described sand grains barrier effect due to described sand block part 4 in the process declined, then sand setting passage 12 is entered, entered by the sand setting hole 112 of described duplex fitting 11 again in the sand storing tube 62 of storage sand assembly 6, therefore sand setting is not easy to enter in described interior pump barrel 2, then enter in described standing valve 8 by described plunger 7, thus sand grains is not easy the joint being stuck in valve ball and valve seat, that is can reduce sand card phenomenon, extend pump detection period.
Sand-proof oil-well pump described in the utility model, can by the sand block part 4 of interior pump barrel 2 upper end closed by arranging on described pull bar 3, can effectively reduce in plunger 7 reciprocatory movement sand setting by interior pump barrel 2, plunger 7, enter the sand grains of standing valve 8, therefore the valve ball of standing valve 8 and valve seat place sand card phenomenon greatly reduce; Standing valve 8 described in the utility model is twin-stage standing valve in addition, and it effectively can reduce the leakage situation that standing valve 8 operationally occurs, thus is conducive to reliability and the life-span of improving valve body.
The foregoing is only several embodiment of the present utility model, although the mode of execution disclosed by the utility model as above, the mode of execution that described content just adopts for the ease of understanding the utility model, is not intended to limit the utility model.Any those skilled in the art described in the utility model; under the prerequisite not departing from the spirit and scope disclosed by the utility model; any amendment and change can be done on the formal of mode of execution and details; but scope of patent protection of the present utility model, the scope that still must define with appended claims is as the criterion.
Claims (9)
1. a sand-proof oil-well pump, is characterized in that, comprising:
Outer pump barrel, its upper end is fixed on oil pipe by pump box cupling, and its lower end is connected with storage sand assembly by duplex fitting; Described duplex fitting sidewall is provided with radial filler opening, and the sand setting hole of axis;
Interior pump barrel, it is set in described outer pump barrel, and itself and described outer pump barrel form the sand setting passage of annular space, described sand setting passage successively with described sand setting hole, store up sand assembly and be connected;
Pull bar, it is located in described interior pump barrel, and its lower end is connected with plunger;
Sand block part, it is set on described pull bar slidably, and can by the upper end closed of described interior pump barrel;
Traveling valve, it is connected to the upper end of described plunger.
2. sand-proof oil-well pump as claimed in claim 1, it is characterized in that: the lower end of described interior pump barrel is provided with standing valve by pump box cupling, described standing valve is twin-stage standing valve, it comprises standing valve cover, the outside of fixed valve bonnet upper end is fixedly connected with described pump box cupling, the inner side of its lower end is fixedly connected with lower standing valve cover, fixed valve base is equipped with in fixed valve bonnet, fixed valve seat is provided with fixed valve ball, the outside of described lower standing valve cover upper end is fixedly connected with the inner side of fixed valve bonnet, its lower end to be connected with described duplex fitting by standing valve joint and to be connected with the filler opening of described duplex fitting, lower fixed valve base is equipped with in described lower standing valve cover, described lower fixed valve base is provided with lower fixed valve ball.
3. sand-proof oil-well pump as claimed in claim 1, is characterized in that: the filler opening place of described duplex fitting is arranged with filter screen.
4. sand-proof oil-well pump as claimed in claim 1, is characterized in that: the lower end of described pull bar is connected with delivery connection, upper travelling valve in turn, and described upper delivery connection upper end is used for being fixedly connected with described pull bar, and lower end is used for being fixedly connected with described traveling valve; Described upper delivery connection is provided with oil outlet, and described oil outlet is connected with described interior pump barrel top.
5. sand-proof oil-well pump as claimed in claim 4, it is characterized in that: described traveling valve, it comprises travelling valve bonnet, the inner side of described travelling valve bonnet upper end is fixedly connected with described upper delivery connection, the inner side of its lower end is connected with plunger connector, be provided with valve seat in described travelling valve bonnet, described valve seat is provided with travelling valve ball.
6. sand-proof oil-well pump as claimed in claim 5, is characterized in that: described plunger is the tube structure of hollow, and its upper end is connected with described traveling valve by described plunger connector, and is connected with described traveling valve; Its lower end is connected with described duplex fitting.
7. sand-proof oil-well pump as claimed in claim 1, is characterized in that: described storage sand assembly comprises the joint, sand storing tube, the plug that connect successively from top to bottom,
The outside of described upper end of joint is fixedly connected with described duplex fitting, and the inner side of its lower end is fixedly connected with described sand storing tube; Described sand storing tube is the cylindrical shell of hollow, and the outside of its upper end is fixed on described joint, and the outside of its lower end is fixedly connected with described plug;
Described plug is fixed on the lower end of described sand storing tube, for by described sand storing tube lower end closed.
8. sand-proof oil-well pump as claimed in claim 1, it is characterized in that: the position that described sand block part coordinates with described interior pump barrel can be provided with the engagement portion of taper, the upper end of corresponding described interior pump barrel is also provided with the conical surface matched with the engagement portion of described sand block part.
9. sand-proof oil-well pump as claimed in claim 1, is characterized in that: be provided with centralizer between described outer pump barrel and described interior pump barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420779980.5U CN204371622U (en) | 2014-12-11 | 2014-12-11 | Sand-proof oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420779980.5U CN204371622U (en) | 2014-12-11 | 2014-12-11 | Sand-proof oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371622U true CN204371622U (en) | 2015-06-03 |
Family
ID=53327847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420779980.5U Expired - Fee Related CN204371622U (en) | 2014-12-11 | 2014-12-11 | Sand-proof oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371622U (en) |
-
2014
- 2014-12-11 CN CN201420779980.5U patent/CN204371622U/en not_active Expired - Fee Related
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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: 20150603 |
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| CF01 | Termination of patent right due to non-payment of annual fee |