CN208830957U - Wellhead lifting type underground oil drain device - Google Patents
Wellhead lifting type underground oil drain device Download PDFInfo
- Publication number
- CN208830957U CN208830957U CN201821295621.7U CN201821295621U CN208830957U CN 208830957 U CN208830957 U CN 208830957U CN 201821295621 U CN201821295621 U CN 201821295621U CN 208830957 U CN208830957 U CN 208830957U
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- CN
- China
- Prior art keywords
- polished rod
- connector
- oil
- bleeder
- underground
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 59
- 210000002445 nipple Anatomy 0.000 claims description 15
- 230000001737 promoting effect Effects 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 244000147058 Derris elliptica Species 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 21
- 238000010586 diagram Methods 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000252253 Catostomus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a wellhead lifting type underground oil drainer, which comprises an oil drainage channel switch mechanism and an underground oil drainage mechanism; the oil drainage channel switching mechanism comprises a wellhead sealing assembly, a lifting connecting piece and a lifting power piece; the underground oil drainage mechanism comprises an outer working component and an inner working component; the outer working assembly is connected to a downhole oil pipe, an outer oil leakage hole (11) is formed in the outer working assembly, and the inner working assembly is provided with an inner oil leakage hole (16) and a polished rod connecting structure; the lifting connecting piece is connected with the polished rod connecting structure and used for lifting the inner working assembly to rise and fall, and adjusting the outer oil leakage hole (11) to be overlapped or staggered with the inner oil leakage hole (16) at the same time; the superposition is used for underground oil drainage; the stagger is used for sealing the oil casing annulus in the well. The problem of current bleeder be disposable tool, unable used repeatedly is solved.
Description
Technical field
The utility model relates to petroleum production engineering underground bleeders.
Background technique
The main function of underground bleeder is the crude oil let out except in oil pipe, prevents the peace of crude oil excessive generation when oil well operation
Full environmental issue, currently used underground bleeder mainly hit, suppress, rotate or upper lifting pipe post by way of open draining
Device, existing bleeder there is a problem of one it is common, bleeder is designed as throw-away tool, after bleeder is opened, nothing
Method realization is again switched off, it is necessary to act former well flow string.
Summary of the invention
In view of this, the present invention provides a kind of well head hoisting type underground bleeder, the bleeder is raw in motionless former well
Under conditions of producing tubing string, the repeatable switch of bleeder.Solving existing bleeder is disposable tool, can not be reused
The problem of.
For achieving the above object, a kind of well head hoisting type underground bleeder characterized by comprising
Drain path switching mechanism and underground draining mechanism；
The drain path switching mechanism, including wellhead sealing component, promotion connector and promotion force piece；
The wellhead sealing component, is connected in wellhead oil tree, for sealing the promotion connector；
The promotion connector is connected on well head by the wellhead sealing component；
The power lifting member is connect with the wellhead sealing component, for adjust it is described promoted connector rise and
It falls；
Underground draining mechanism, including outer work package and interior work package；
The outer work package, is connected on down-hole oil tube, has outer oil leak hole thereon, interior to have limited step；
The interior work package has internal drainage hole and polished rod connection structure, and described in being placed in by the limited step
In outer work package；
The outer oil leak hole and the internal drainage hole, are used separately as drain path；
The promotion connector lower end, connect with the polished rod connection structure, for promoting the liter of the interior work package
It rises and falls；
The rise of the interior work package and whereabouts are overlapped or wrong for adjusting the outer oil leak hole with the internal drainage hole
It opens；
The underground drain path is connected to by the coincidence, is used for underground draining；
It is described to be staggered, the underground drain path is closed, for sealing underground oil jacket annulus.
Preferably, the wellhead sealing component, comprising:
Thimble connector, wellhead sealing main body and pressure cap；
The thimble connector is connect with wellhead sealing main body screw, and is bolted with the production tree；
The threaded upper ends of the wellhead sealing main body connect pressure cap；
The promotion connector penetrates in the wellhead sealing main body from the pressure cap center；
Adjust the pressure cap is threaded into depth, for adjusting between the promotion connector and the sealed body
Sealing elasticity.
Preferably, the wellhead sealing component, further includes:
Support gasket ring；
The support gasket ring is placed on the upper surface of the wellhead sealing main body, for protecting the pressure cap not by external force
Effect.
Preferably, the wellhead sealing component, further includes:
Gasket ring；
Step is set in the wellhead sealing main body；
The gasket ring is limited by the step, is used as sealing ring pedestal.
Preferably, the promotion connector, comprising:
Promote polished rod and polished rod connecting short section；
The polished rod connecting short section is threadedly coupled, the upper end threaded coupling nut, for adjusting with the promotion polished rod
State the length for promoting polished rod.
Preferably, the promotion force piece, comprising:
Hollow jack；
The hollow jack is placed between the nut and the support gasket ring；
The nut is threadedly coupled with the polished rod connecting short section, for adjusting between the nut and the support gasket ring
Distance.
Preferably, the outer work package, comprising:
Upper box cupling, outer working tube and lower box cupling；
The upper box cupling, the outer working tube and the lower box cupling are successively threadedly coupled；
There is outer oil leak hole, inside has limited step outside the outer working tube；
The upper box cupling and the lower box cupling are threadedly coupled with down-hole oil tube respectively.
Preferably, the interior work package, comprising:
Interior seating nipple and polished rod connector；
The interior seating nipple, the upper end are threadedly coupled with the polished rod connector, and lower end is sitting on the limited step, side
Wall has internal drainage hole；
The polished rod connector is connect with the lower thread for promoting polished rod.
Preferably, there is dynamic seal between the interior seating nipple and the outer working tube；
The dynamic seal, between the interior seating nipple and the outer working tube sealing and the interior seating nipple exist
It is freely moved up and down in the outer working tube.
The utility model has the following beneficial effects:
The well head hoisting type underground bleeder of the application is suitable for submersible electric pump, latent oil plunger pump etc. and lifts using no bar
The oil well of technology is divided into drain path switching mechanism and underground draining mechanism two parts.It is realized by drain path switching mechanism
The switch of underground bleeder operates, and guarantees the recycling of downhole tool, it can be achieved that motionless flow string multiple switching operates.Cause
The oil well that failure stops production, the openable tool are connected to oil jacket annulus, let out except crude oil in oil pipe, prevent long-time from stopping well wax deposition and lead
It causes the secondary machine that opens difficult, after troubleshooting, closes the tool, reseal oil jacket annulus, guarantee that oil well normally produces.
Detailed description of the invention
By the description below with reference to attached drawing to the utility model embodiment, the above-mentioned and other mesh of the utility model
, feature and advantage it is apparent, in the accompanying drawings:
Fig. 1 is the drain path switching mechanism structural schematic diagram of the utility model embodiment；
Fig. 2 is the structural schematic diagram of the underground draining mechanism of the utility model embodiment.
Specific embodiment
The utility model is described below based on embodiment, but it is worth noting that, the utility model is simultaneously unlimited
In these embodiments.It is detailed to describe some specific detail sections below in the datail description of the utility model.So
And for the part of no detailed description, the utility model can also be understood completely in those skilled in the art.
In addition, it should be understood by one skilled in the art that provided attached drawing is simply to illustrate that the utility model
Objects, features and advantages, attached drawing are not to be actually drawn to scale.
Meanwhile unless the context clearly requires otherwise, "include", "comprise" etc. otherwise throughout the specification and claims
Similar word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, being " including but not limited to "
Meaning.
Fig. 1 is the drain path switching mechanism structural schematic diagram of the utility model embodiment；Fig. 2 is that the utility model is implemented
The structural schematic diagram of the underground draining mechanism of example.As shown in Figure 1: a kind of well head hoisting type underground bleeder, including drain path
Switching mechanism and underground draining mechanism；The drain path switching mechanism, including wellhead sealing component, promotion connector and promotion are dynamic
Power part；Wherein, wellhead sealing component is connected in wellhead oil tree, for sealing the promotion connector；It is logical to promote connector
Wellhead sealing component is crossed to be connected on well head；Power lifting member is connect with wellhead sealing component, promotes connector for adjusting
It rises and falls.
As shown in Figure 2: underground draining mechanism, including outer work package and interior work package；Wherein, outer work package connection
On down-hole oil tube, there is outer oil leak hole 11 thereon, it is interior that there is limited step；There is 16 He of internal drainage hole on interior work package
Polished rod connection structure, and be placed in outer work package by limited step.
Further, in fig. 1 and 2, outer oil leak hole 11 and internal drainage hole 16, are used separately as drain path.
Further, connector lower end is promoted to connect with polished rod connection structure, for promoted the rise of interior work package with
It falls；The rise of interior work package and whereabouts are overlapped or are staggered with internal drainage hole 16 for adjusting outer oil leak hole 11；After coincidence,
Underground drain path is connected to, underground draining is used for；After being staggered, underground drain path is closed, for sealing downhole oil lantern ring
It is empty.
Further, in Fig. 1, wellhead sealing component, including thimble connector 1, wellhead sealing main body 3 and pressure cap 5；The card
Hoop connector 1 is threadedly coupled with wellhead sealing main body 3, and is bolted with production tree；The threaded upper ends of wellhead sealing main body 3 connect
Pressure cap 5；Connector is promoted to penetrate in wellhead sealing main body 3 from 5 center of pressure cap；Adjust pressure cap 5 is threaded into depth, can adjust
Section promotes the sealing elasticity between connector and sealed body.
Further, in Fig. 1, wellhead sealing component further includes support gasket ring 6；The support gasket ring 6 is placed in wellhead sealing
On the upper surface of main body 3, for protecting pressure cap 5 not by external force.
Further, in Fig. 1, wellhead sealing component further includes gasket ring 2；Step is set in the wellhead sealing main body 3；
Gasket ring 2 is limited by the step, is used as sealing ring pedestal.
Further, in Fig. 1, connector is promoted, including promote polished rod 4 and polished rod connecting short section 7；Polished rod connection is short
Section 7 is threadedly coupled with polished rod 4 is promoted, threaded upper ends attaching nut 8, for adjusting the length for promoting polished rod 4.
Further, force piece, including hollow jack are promoted；The hollow jack be placed in nut 8 and support gasket ring 6 it
Between；Nut 8 is threadedly coupled with polished rod connecting short section 7, and the distance between adjustable nut 8 and support gasket ring 6 guarantee hollow thousand
Jin top is put in place.
Further, in Fig. 2, outer work package, including upper box cupling 9, outer working tube 10 and lower box cupling 13；Upper box cupling 9,
Outer working tube 10 and lower box cupling 13 are successively threadedly coupled；There is outer oil leak hole 11, inside has limiting stand outside the outer working tube 10
Rank 12；Upper box cupling 9 and lower box cupling 13 are threadedly coupled with down-hole oil tube respectively.
Further, in Fig. 2, interior work package, including interior seating nipple 15 and polished rod connector 14；On interior seating nipple 15
End is threadedly coupled with polished rod connector 14, and lower end is sitting on limited step 12, and side wall has internal drainage hole 16；Polished rod connector 14
It is connect with the lower thread for promoting polished rod 4.
Further, there is dynamic seal between interior seating nipple 15 and outer working tube 10；The dynamic seal is used for interior work
Sealing and interior seating nipple 15 between cylinder 15 and outer working tube 10 freely move up and down in outer working tube 10.
Specifically, in conjunction with Fig. 1 and Fig. 2, the course of work of the well head hoisting type underground drainage device of the application is said
It is bright:
Group after drain path switching mechanism and underground draining mechanism are threadedly coupled by promotion polished rod 4 with polished rod connector 14
It is fitted together.Hollow jack is installed between support gasket ring 6 and nut 8, when hollow jack uplink, nut 8 is elevated,
To drive polished rod connecting short section 7, promote 4 uplink of polished rod, the polished rod that underground draining mechanism is transmitted to by promoting polished rod 4 is connected
First 14,15 uplink of interior seating nipple is driven, because outer working tube 10 is stationary, internal drainage hole 16 and outer oil leak hole 11 are staggered, and realize
Sealing function.When hollow jack moves down, under the effect of gravity, the downlink therewith of nut 8, thus drive polished rod connecting short section 7,
4 downlink of polished rod is promoted, the polished rod connector 14 of underground drainage device is transmitted to by common sucker rod, is driven under interior seating nipple 15
Row, until stopping downlink when at limited step 12, internal drainage hole 16 and outer oil leak hole 11 are overlapped, and draining is realized in the inside and outside connection of tool
Function.It is repeatedly moved above and below by controlling hollow jack, controls the switch of drain path, to realize in motionless former well
Under conditions of flow string, the repeatable switch of bleeder.
By the description to the course of work it can be seen that design drain path switching mechanism, is guaranteeing that wellhead sealing is reliable
In the case where, it can control the switch of underground draining mechanism；Draining mechanism under planned well realizes the on and off of drain path,
Sealing performance is reliable.The dynamical system that well head is promoted applies dismountable hollow jack, can be according to produced on-site demand, at any time
Installation and removal improve utilization rate of equipment and installations.
Embodiment described above is only to express the embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Therefore it cannot be interpreted as that a limitation on the scope of the patent of the present invention.It should be pointed out that the ordinary skill people of this field
For member, without departing from the concept of the premise utility, several deformations, same replacement can also be made, improved etc., these
Belong to the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (9)
1. a kind of well head hoisting type underground bleeder characterized by comprising
Drain path switching mechanism and underground draining mechanism；
The drain path switching mechanism, including wellhead sealing component, promotion connector and promotion force piece；
The wellhead sealing component, is connected in wellhead oil tree, for sealing the promotion connector；
The promotion connector is connected on well head by the wellhead sealing component；
The power lifting member is connect with the wellhead sealing component, for adjusting the rise for promoting connector and whereabouts；
Underground draining mechanism, including outer work package and interior work package；
The outer work package, is connected on down-hole oil tube, has outer oil leak hole (11) thereon, interior to have limited step；
The interior work package has internal drainage hole (16) and polished rod connection structure, and described in being placed in by the limited step
In outer work package；
The outer oil leak hole (11) and the internal drainage hole (16), are used separately as drain path；
The promotion connector, lower end are connect with the polished rod connection structure, for promoting the rise of the interior work package
The whereabouts and；
The rise of the interior work package and whereabouts are overlapped for adjusting the outer oil leak hole (11) with the internal drainage hole (16)
Or it is staggered；
The coincidence is to be connected to the underground drain path, is used for underground draining；
Described be staggered is to close the underground drain path, for sealing underground oil jacket annulus.
2. a kind of well head hoisting type underground according to claim 1 bleeder, which is characterized in that the wellhead sealing group
Part, comprising:
Thimble connector (1), wellhead sealing main body (3) and pressure cap (5)；
The thimble connector (1) is threadedly coupled with wellhead sealing main body (3), and is bolted with the production tree；
The threaded upper ends of the wellhead sealing main body (3) connect pressure cap (5)；
The promotion connector penetrates in the wellhead sealing main body (3) from the pressure cap (5) center；
Adjust the pressure cap (5) is threaded into depth, for adjusting between the promotion connector and the sealed body
Sealing elasticity.
3. a kind of well head hoisting type underground according to claim 2 bleeder, which is characterized in that the wellhead sealing group
Part, further includes:
It supports gasket ring (6)；
The support gasket ring (6) is placed on the upper surface of the wellhead sealing main body (3), for protect the pressure cap (5) not by
External force.
4. a kind of well head hoisting type underground according to claim 2 or 3 bleeder, which is characterized in that the wellhead sealing
Component, further includes:
Gasket ring (2)；
Step is set in the wellhead sealing main body (3)；
The gasket ring (2), is limited by the step, is used as sealing ring pedestal.
5. a kind of well head hoisting type underground according to claim 3 bleeder, which is characterized in that the promotion connector,
Include:
Promote polished rod (4) and polished rod connecting short section (7)；
The polished rod connecting short section (7), is threadedly coupled with the promotion polished rod (4), and the upper end threaded coupling nut (8) is used for
Adjust the length for promoting polished rod (4).
6. a kind of well head hoisting type underground according to claim 5 bleeder, which is characterized in that the promotion force piece,
Include:
Hollow jack；
The hollow jack is placed between the nut (8) and the support gasket ring (6)；
The nut (8) is threadedly coupled with the polished rod connecting short section (7), for adjusting the nut (8) and the supporting pad
The distance between ring (6).
7. a kind of well head hoisting type underground according to claim 1 bleeder, which is characterized in that the outer work package,
Include:
Upper box cupling (9), outer working tube (10) and lower box cupling (13)；
The upper box cupling (9), the outer working tube (10) and the lower box cupling (13) are successively threadedly coupled；
The outer working tube (10) has outer oil leak hole (11) outside, and inside has limited step (12)；
The upper box cupling (9) and the lower box cupling (13) are threadedly coupled with down-hole oil tube respectively.
8. a kind of well head hoisting type underground according to claim 7 bleeder, which is characterized in that the interior work package,
Include:
Interior seating nipple (15) and polished rod connector (14)；
The interior seating nipple (15), the upper end are threadedly coupled with the polished rod connector (14), and lower end is sitting in the limited step
(12) on, side wall has internal drainage hole (16)；
The polished rod connector (14) connect with the lower thread for promoting polished rod (4).
9. a kind of well head hoisting type underground according to claim 8 bleeder, it is characterised in that:
There is dynamic seal between the interior seating nipple (15) and the outer working tube (10)；
The dynamic seal, for the sealing and the interior work between the interior seating nipple (15) and the outer working tube (10)
Cylinder (15) freely moves up and down in the outer working tube (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821295621.7U CN208830957U (en) | 2018-08-12 | 2018-08-12 | Wellhead lifting type underground oil drain device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821295621.7U CN208830957U (en) | 2018-08-12 | 2018-08-12 | Wellhead lifting type underground oil drain device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208830957U true CN208830957U (en) | 2019-05-07 |
Family
ID=66308988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821295621.7U Expired - Fee Related CN208830957U (en) | 2018-08-12 | 2018-08-12 | Wellhead lifting type underground oil drain device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208830957U (en) |
-
2018
- 2018-08-12 CN CN201821295621.7U patent/CN208830957U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190507 Termination date: 20210812 |