CN205805461U - A kind of pumping is with safe pull-off device - Google Patents
A kind of pumping is with safe pull-off device Download PDFInfo
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- CN205805461U CN205805461U CN201620654618.4U CN201620654618U CN205805461U CN 205805461 U CN205805461 U CN 205805461U CN 201620654618 U CN201620654618 U CN 201620654618U CN 205805461 U CN205805461 U CN 205805461U
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- seating nipple
- pumping
- central canal
- slide block
- top connection
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Abstract
This utility model provides a kind of safe pull-off device of pumping, including top connection and seating nipple, described seating nipple upper end is provided with limiting stand, positive stop lug boss it is provided with in the middle part of top connection, coordinate with seating nipple limiting stand and be sitting on seating nipple, being provided with central canal in described seating nipple, threadeds with the lower end of top connection in the upper end of central canal.This utility model can meet and often trips out the requirement that swab carries out checking and being replaced in pumping process；Have employed Wedge-type self-locking mechanism, solve employing steel ball locking, after corrosion, lock function lost efficacy, the problem that bearing capacity reduces, and avoid and occur that error or the judgement of steel wire rope pumping mark collide blowout prevention box, the problem causing wire cable rupture when making a fault and cause weighted lever up when level instrument shows.
Description
Technical field
This utility model belongs to oil gas field pumping discharge opeing technical field, is specifically related to a kind of safe pull-off device of pumping.
Background technology
Pumping discharge opeing is the important step of low pressure oil gas well formation testing gas work.Pumping process installs safe pull-off device
On the wax removal valve of production tree, and blowout prevention box with the use of, solving inspection, to change swab inconvenient, and operational error is made
The problem becoming weighted lever to collide blowout prevention box and to cause wire cable rupture.
Changqing oilfields underground work company is in " the Oil/gas Well security closed swabbing pulling-out device " of application in 2009, its patent
Number it is ZL200820228292.4.Its primary structure is to realize locking by steel ball between lock-bit joint and seal head, above carries and taking out
Period of the day from 11 p.m. to 1 a.m weighted lever promotes and moves on seal head, and steel ball enters in the eyelet on seal head sidewall, and seal head and lock-bit joint divide automatically
From.By use at the scene, this device is primarily present two problems: steel ball was lost efficacy by well corrosion, lock function, pressure-bearing energy
Power reduces；Gap between lock-bit joint and seal head increases, poor sealing performance, and well liquid is missed, and causes environmental pollution.
Utility model content
The purpose of this utility model is environmental pollution in solution pumping process, causes wire cable rupture, lock because of misoperation
Determine the problems such as disabler.
To this end, this utility model provides a kind of safe pull-off device of pumping, including top connection and seating nipple, described work
Make cylinder upper end and be provided with limiting stand, in the middle part of top connection, be provided with positive stop lug boss, coordinate with seating nipple limiting stand and be sitting on seating nipple, described
Being provided with central canal in seating nipple, threadeds with the lower end of top connection in the upper end of central canal；
The middle part circumference of described central canal is uniformly provided with multiple rectangular opening, is provided with slide block, described slide block in described seating nipple
For up big and down small wedge, this slide block connects with seating nipple inwall simultaneously in arc surface, this arc surface radian and seating nipple
The radian in chamber is identical, and the lower limb of described rectangular opening is provided with cylinder boss, and this cylinder boss is provided with chute, is flat bottom chute
Face, the angle between chute base plane and centrage is less than angle of friction, and described slide block is provided with projection, and this projection passes rectangle
The push rod that Kong Houyu is located in central canal connects, and on described slide block, the conical surface and cylinder boss chute cooperatively form friction self-locking machine
Structure；
The lower end of described central canal is threaded baffle ring, and described push rod lower end external stability has convex shoulder, described central canal
Being externally provided with spring and spring base, described spring base is located at above rectangular opening, and described spring upper end is fixed in top connection, under sit up straight
On spring base.
V-ring and pressure ring, described pressure ring and top connection spiral shell it is provided with from top to bottom between described top connection and seating nipple
Stricture of vagina compresses v-ring after connecting.
Described slide block arc surface is provided with upper and lower two grooves, is provided with the becket of closing in upper groove, installs one in lower groove
Individual resilient rubber ring.
Described seating nipple upper end is horn mouth, and lower end is taper necking down shape, and necking segment outer end is provided with screw thread.
In described central canal, lower end is provided with limiting stand, and this limiting stand is located at push rod convex shoulder top.
All have zigzag tooth on described slide block arc surface and seating nipple inwall, two groups of zigzag teeth with the use of.
The beneficial effects of the utility model are:
(1) can meet in pumping process, often trip out the requirement that swab carries out checking and being replaced；
(2) avoid and occur that error or steel wire rope pumping mark judge to make a fault and cause adding when level instrument shows
Collision blowout prevention box, the problem causing wire cable rupture when weight bar is up；
(3) this device has certain sealing property, can prevent well liquid splash in pumping process, pollutes environment；
(4) owing to have employed Wedge-type self-locking mechanism so that it is have higher bearing capacity.
It is described in further details below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, top connection；2, v-ring；3, pressure ring；4, spring；5, central canal；6, spring base；7, becket；8、
Rubber ring；9, slide block；10, push rod；11, baffle ring；12, seating nipple；13, rectangular opening；14, convex shoulder.
Detailed description of the invention
Embodiment 1:
Present embodiments provide a kind of safe pull-off device of pumping, including top connection 1 and seating nipple 12, described seating nipple
12 upper ends are provided with limiting stand, are provided with positive stop lug boss in the middle part of top connection 1, coordinate with seating nipple 12 limiting stand and are sitting on seating nipple 12,
Being provided with central canal 5 in described seating nipple 12, threadeds with the lower end of top connection 1 in the upper end of central canal 5；
The middle part circumference of described central canal 5 is uniformly provided with multiple rectangular opening 13, is provided with slide block 9, institute in described seating nipple 12
Stating slide block 9 is up big and down small wedge, and this slide block 9 connects one side for arc surface, this arc surface radian with seating nipple 12 inwall
Identical with the radian of seating nipple 12 inner chamber, the lower limb of described rectangular opening 13 is provided with cylinder boss, and this cylinder boss is provided with chute,
Being plane bottom chute, the angle between chute base plane and centrage is less than angle of friction, and described slide block 9 is provided with projection,
This projection is connected with the push rod 10 being located in central canal 5 after rectangular opening 13, the conical surface and cylinder boss chute on described slide block 9
Cooperatively form friction self-locking mechanism；
The lower end of described central canal 5 is threaded baffle ring 11, and described push rod 10 lower end external stability has convex shoulder 14, described
Central canal 5 is externally provided with spring 4 and spring base 6, and described spring base 6 is located at above rectangular opening 13, and described spring 4 upper end is fixed on
On joint 1, lower end is sitting on spring base 6.
This utility model principle: be provided with positive stop lug boss in the middle part of top connection 1, plays the work limiting internal structure installation site
With；There is the rectangular opening 13 coordinated with slide block 9 central canal 5 middle part, and the lower limb of rectangular opening 13 is cylinder boss, cylinder boss
Having chute, be plane bottom chute, the angle between chute base plane and centrage is less than angle of friction, the projection on slide block 9
Being arranged in the rectangular opening 13 on central canal 5, slide block 9 can be made to move up and down along central canal 5, the conical surface of lower end is joined with chute face
Close and form friction self-locking mechanism；Spring 4 plays the effect limiting slide block 9 displacement, when central canal 5 lower end is by active force upwards
Moving up, thus promote slide block 9 to move up, slide block 9 is closely adhered under the effect that central canal 5 and spring 4 are common
On seating nipple 12 inwall；Push rod 10 is used for unlocking, and the anti-throw-out lever of baffle ring 11 10 drops.
The present embodiment pumping work process of safe pull-off device, refering to Fig. 1.
Pumping process is arranged on safe pull-off device on the wax removal valve of production tree, and blowout prevention box with the use of, on
The upper end of joint 1 is tubing round thread, is connected with blowout prevention box.In normal pumping process, central canal 5 rectangular opening 13 upper hopper chute and cunning
Block 9 forms friction self-locking mechanism, and slide block 9 is closely adhered on seating nipple 12 inwall due to the extruding of central canal 5, and well is intrinsic pressure
Power is the highest, then slide block 9 and seating nipple 12 are the tightst, thus ensure that the bearing capacity that this device is higher, suction row
Pumping is completed under the effect of liquid device.
When swab rubber changed by needs, or because maloperation causes the mechanical rope socket of pumping instrument top to strike push rod
When 10, the effect lower push-rod 10 in impulsive force promotes and moves on slide block 9, completes unlocking motion, makes slide block 9 and seating nipple 12 separate,
The instruments such as the internal structure of seating nipple 12 and top blowout prevention box are taken advantage of a situation and are mentioned, it is to avoid impulsive force is crossed ambassador's steel wire rope and broken
Split, cause pumping instrument to fall the accident of well.
When needs dock again, it is suitable all internal structures to be adjusted, and transfers instrument, conducts oneself with dignity at weighted lever and blowout prevention box
Effect under, central canal 5 enters in seating nipple 12, continues the instrument of transferring, when waiting top connection 1 to seating nipple 12 instrument install
Put in place, under the effect of borehole pressure, complete lock out action, just can proceed with swabbing operation.
This utility model can meet and often trips out the requirement that swab carries out checking and being replaced in pumping process；Use
Wedge-type self-locking mechanism, solves employing steel ball locking, and after corrosion, lock function lost efficacy, the problem that bearing capacity reduces, and
And avoid and occur that error or steel wire rope pumping mark judge to make a fault and cause weighted lever up when level instrument shows
Time collision blowout prevention box, the problem causing wire cable rupture.
Embodiment 2:
On the basis of embodiment 1, present embodiments provide a kind of pumping as shown in Figure 1 safe pull-off device, institute
Stating and be provided with v-ring 2 and pressure ring 3 between top connection 1 and seating nipple 12 from top to bottom, described pressure ring 3 is with top connection 1 screw thread even
V-ring 2 is compressed after connecing.The number of v-ring 2 can increase according to demand, between top connection 1 and seating nipple 12
Seal.
Described slide block 9 arc surface is provided with upper and lower two grooves, is provided with the becket 7 of closing in upper groove, installs in lower groove
One resilient rubber ring 8.Wherein, becket 7 effect is that slide block 9 is strapped on central canal 5, prevents instrument from tripping out work
Cylinder 12 rear sliders 9 drop, and rubber ring 8 effect is, after self-locking mechanism unlocks, to make slide block 9 be close to central canal 5.
Described seating nipple 12 upper end is horn mouth, and lower end is taper necking down shape, and necking segment outer end is provided with screw thread.Horn mouth
Have two effects, be on the one hand to play the guiding role, under enter swab time make swab can enter smoothly in seating nipple 12；On the other hand
Play position-limiting action, coordinate with top connection 1, play the effect limiting internal structure installation site.
In described central canal 5, lower end is provided with limiting stand, and this limiting stand is located at push rod 10 convex shoulder 14 top.Effect is to limit to push away
The displacement of bar 10.
All have zigzag tooth on described slide block 9 arc surface and seating nipple 12 inwall, two groups of zigzag teeth with the use of.
Effect is to make slide block 9 and seating nipple 12 closely be engaged.
Described rectangular opening 13 has three.Described spring base 6 is an annulus, is arranged on central canal 5, and between central canal 5
Gap coordinates, and external diameter is more than the big footpath of spring 4.
In normal pumping process, chute and slide block 9 form friction self-locking mechanism, slide block 9 due to central canal 5 extruding and
Closely being engaged on seating nipple 12 inwall, borehole pressure is the highest, then slide block 9 and seating nipple 12 are the tightst, thus protect
Demonstrate,prove the bearing capacity that this device is higher, under the effect of suction pumping equipment, complete pumping.
What the present embodiment provided draws by safe pull-off device, good seal performance, overcome in prior art lock-bit joint with
Gap between seal head increases, and poor sealing performance, in pumping process, the liquid splash of well liquid absorption well, causes asking of environmental pollution
Topic.
In sum, this utility model has prior art to compare, and has the advantage that
(1) can meet in pumping process, often trip out the requirement that swab carries out checking and being replaced；
(2) avoid and occur that error or steel wire rope pumping mark judge to make a fault and cause adding when level instrument shows
Collision blowout prevention box, the problem causing wire cable rupture when weight bar is up；
(3) this device has certain sealing property, can prevent well liquid splash in pumping process, pollutes environment；
(4) owing to have employed Wedge-type self-locking mechanism so that it is have higher bearing capacity.
Parts that the present embodiment describes the most in detail and structure belong to the well-known components of the industry and common structure or conventional hands
Section, describes the most one by one.
Exemplified as above is only to illustration of the present utility model, is not intended that protection domain of the present utility model
Limit, within the every and same or analogous design of this utility model belongs to protection domain of the present utility model.
Claims (6)
1. pumping is with a safe pull-off device, including top connection (1) and seating nipple (12), it is characterised in that: described seating nipple
(12) upper end is provided with limiting stand, and top connection (1) middle part is provided with positive stop lug boss, coordinates with seating nipple (12) limiting stand and be sitting in seating nipple
(12) on, being provided with central canal (5) in described seating nipple (12), the upper end of central canal (5) connects with the lower end screw thread of top connection (1)
Connect；
The middle part circumference of described central canal (5) is uniformly provided with multiple rectangular opening (13), and described seating nipple is provided with slide block in (12)
(9), described slide block (9) is up big and down small wedge, and it is simultaneously arc surface that this slide block (9) connects with seating nipple (12) inwall,
This arc surface radian is identical with the radian of seating nipple (12) inner chamber, and the lower limb of described rectangular opening (13) is provided with cylinder boss, should
Cylinder boss is provided with chute, is plane bottom chute, and the angle between chute base plane and centrage is less than angle of friction, described
Slide block (9) is provided with projection, and this projection is connected with the push rod (10) being located in central canal (5) afterwards through rectangular opening (13), described
The upper conical surface of slide block (9) cooperatively forms friction self-locking mechanism with cylinder boss chute；
The lower end of described central canal (5) is threaded baffle ring (11), and described push rod (10) lower end external stability has convex shoulder (14),
Described central canal (5) is externally provided with spring (4) and spring base (6), and described spring base (6) is located at rectangular opening (13) top, described bullet
Spring (4) upper end is fixed in top connection (1), and lower end is sitting on spring base (6).
Pumping the most according to claim 1 is with safe pull-off device, it is characterised in that: described top connection (1) and seating nipple
(12) being provided with v-ring (2) and pressure ring (3) between from top to bottom, described pressure ring (3) is pressed after threadeding with top connection (1)
Tight v-ring (2).
Pumping the most according to claim 1 is with safe pull-off device, it is characterised in that: set on described slide block (9) arc surface
There are upper and lower two grooves, the becket (7) of closing is installed in upper groove, a resilient rubber ring (8) is installed in lower groove.
Pumping the most according to claim 1 is with safe pull-off device, it is characterised in that: described seating nipple (12) upper end is loudspeaker
Mouth, lower end is taper necking down shape, and necking segment outer end is provided with screw thread.
Pumping the most according to claim 1 is with safe pull-off device, it is characterised in that: described central canal (5) interior lower end sets
Limited location platform, this limiting stand is located at push rod (10) convex shoulder (14) top.
6. according to the pumping described in any one of claim 1-5 with safe pull-off device, it is characterised in that: described slide block (9) circle
All have zigzag tooth in cambered surface and seating nipple (12) inwall, two groups of zigzag teeth with the use of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620654618.4U CN205805461U (en) | 2016-06-28 | 2016-06-28 | A kind of pumping is with safe pull-off device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620654618.4U CN205805461U (en) | 2016-06-28 | 2016-06-28 | A kind of pumping is with safe pull-off device |
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| Publication Number | Publication Date |
|---|---|
| CN205805461U true CN205805461U (en) | 2016-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620654618.4U Active CN205805461U (en) | 2016-06-28 | 2016-06-28 | A kind of pumping is with safe pull-off device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909198A (en) * | 2016-06-28 | 2016-08-31 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Safe pull and dissociating device for suction |
-
2016
- 2016-06-28 CN CN201620654618.4U patent/CN205805461U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909198A (en) * | 2016-06-28 | 2016-08-31 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Safe pull and dissociating device for suction |
| CN105909198B (en) * | 2016-06-28 | 2018-05-22 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of safe pull-off device of pumping |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |