CN206737875U - A kind of presetting system underground adjustable choke fishing tool - Google Patents
A kind of presetting system underground adjustable choke fishing tool Download PDFInfo
- Publication number
- CN206737875U CN206737875U CN201720570172.1U CN201720570172U CN206737875U CN 206737875 U CN206737875 U CN 206737875U CN 201720570172 U CN201720570172 U CN 201720570172U CN 206737875 U CN206737875 U CN 206737875U
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- China
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- mandrel
- spring
- adjustable choke
- claw
- presetting system
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Abstract
The utility model provides a kind of presetting system underground adjustable choke fishing tool, and fishing neck is arranged at presetting system underground adjustable choke top, including be sequentially connected from top to bottom top connection, housing, grab deck and claw, claw coordinates with fishing neck；Mandrel is provided with housing, the mandrel is axially movable, it is arranged limited location compression set, the first spring on mandrel successively from top to bottom, spacing compression set is fixedly connected with mandrel, first spring one end connects with spacing compression set, the other end connects with grabbing deck upper end, claw is multiple and is circumferentially uniformly distributed along mandrel bottom, grab and second spring is arranged with deck, the pin being fixed on mandrel is provided with second spring, mandrel bottom is provided with multiple positioners, corresponds with claw and is set along the even circumferential grabbed below deck.The utility model can smoothly pull presetting system underground adjustable choke out out of pit shaft, and structure design is simple, easy to use.
Description
Technical field
The utility model belongs to downhole choke technical field after gas well is gone into operation, and in particular to a kind of presetting system underground can adjust
Flow device fishing tool.
Background technology
Downhole choke technology is exactly that the flow controller of certain flow nipple size is put in a certain depth oil pipe inner seat in underground, realizes well
Reducing pressure by regulating flow in cylinder, fluid-flow rate is improved, play a part of carrying wellbore effusion, so as to realize the regulation of gas well yield.
Presetting system underground adjustable choke is the flow controller being set in advance in the preset seating nipple of a certain depth of oil pipe,
The size in flow nipple aperture is adjustable, contacts grappling, sealing with preset seating nipple by slips, packing element.It is full in applying at the scene
Sufficient production requirement will adjust gas well yield or carry out water pumping gas production in the gas well liquid loading later stage to give full play to gas well deliverability, need
Presetting system underground adjustable choke is salvaged from pit shaft.
At present, the gaslift fishing tool used promotes flow controller up by gas well self-energy, it is up to a certain extent
Afterwards, because gas well self-energy weakens, anti-fall claw is just stuck in the oil pipe hoop of somewhere, saves gaslift fishing tool and underground
It is no longer up to flow device, can not ensure that presetting system underground adjustable choke can smoothly salvage pit shaft.And due to presetting system well
There is signal receiver the salvaging footpath upper end of lower adjustable choke, and existing fishing tool fishing head length is inadequate, can not be supporting
Salvaged using realizing.
Utility model content
The purpose of this utility model is to provide a kind of presetting system underground adjustable choke fishing tool, makes presetting system underground
Adjustable choke can be salvaged smoothly out of pit shaft to be come, and is realized efficient workover treatment in pit shaft, is improved wellbore integrity.
To achieve these goals, the technical scheme that the utility model is provided is as follows：
Fishing neck is arranged at a kind of presetting system underground adjustable choke fishing tool, presetting system underground adjustable choke top,
Including be sequentially connected from top to bottom top connection, housing, grab deck and claw, the claw coordinates with fishing neck；
Mandrel is provided with the housing, the mandrel is axially movable, and limited location is arranged successively from top to bottom on the mandrel
Compression set, the first spring, the spacing compression set are fixedly connected with mandrel, and first spring one end fills with spacing compression
Put and connect, the other end connects with grabbing deck upper end, and the claw is multiple and is circumferentially uniformly distributed along mandrel bottom, described to grab card
Second spring is arranged with seat, the pin being fixed on mandrel is provided with the second spring, the mandrel bottom is provided with multiple
Positioner, the multiple positioner are corresponded with claw and set along the even circumferential grabbed below deck.
The spacing compression set is cone cap, and the cone cap top is circular cone, and bottom is cylinder, the column part and core
Axle is fixedly connected.
The positioner is made up of locating piece and groove, and for the locating piece on mandrel, the groove is located at claw
On.
First spring is cylindrical spring, and the second spring is Rectangular Spring.
The top connection and housing are integrated, and the top connection upper end is provided with screw thread.
The spacing compression set is fixedly connected with mandrel by interior hexagonal pyramid head screw.
The top connection, housing, mandrel and claw are 35CrMo materials.
The beneficial effects of the utility model are：
This presetting system underground adjustable choke fishing tool provided by the utility model, can by presetting system underground
To adjust flow controller smoothly to be pulled out out of pit shaft, realize efficient workover treatment in pit shaft, improve wellbore integrity, structure design is simple,
It is easy to use, the salvaging needs of presetting system underground adjustable choke can be met, be easy to carry out other workover treatments in follow-up pit shaft,
Practical, application effect is notable.
It is described in further details below in conjunction with accompanying drawing.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1st, top connection；2nd, cone cap；3rd, interior hexagonal pyramid head screw；4th, mandrel；5th, the first spring；6th, deck is grabbed；7、
Second spring；8th, pin；9th, locating piece；10th, claw.
Embodiment
Embodiment 1：
Present embodiments provide a kind of presetting system underground adjustable choke fishing tool, presetting system underground adjustable choke
Fishing neck is arranged at top, including be sequentially connected from top to bottom top connection 1, housing, grab deck 6 and claw 10, the claw 10 with
Fishing neck coordinates；
Mandrel 4 is provided with the housing, the mandrel 4 is axially movable, and is arranged successively from top to bottom on the mandrel 4 limited
Position compression set, the first spring 5, the spacing compression set is fixedly connected with mandrel 4, described one end of first spring 5 with it is spacing
Compression set connects, and the other end connects with grabbing the upper end of deck 6, and the claw 10 is multiple and uniformly divided along the bottom of mandrel 4 is circumferential
Cloth, described grab are arranged with second spring 7 on deck 6, the pin 8 being fixed on mandrel 4 is provided with the second spring 7, described
The bottom of mandrel 4 is provided with multiple positioners, and the multiple positioner corresponds with claw 10 and along the circle for grabbing the lower section of deck 6
Week is uniformly arranged.
Use process：
First, salvage before by fishing tool with piano wire tool string by being connected on ground；Secondly, by fishing tool
The setting position of presetting system underground adjustable choke is lowered into by piano wire（I.e. preset seating nipple position）Above 50m, to
Lower quick washing, the fishing neck of presetting system underground adjustable choke is caught using fishing tool claw 10, then above carries well testing steel
Silk tool string pulls presetting system underground adjustable choke out ground out of pit shaft；After completing fishing, go through and salvage
Presetting system underground adjustable choke, each damage of components situation of fishing tool, in time dismounting, change corresponding tool parts,
Used subsequently to enter well.
Operation principle：
Compression second spring 7, pin 8 are cut under the shearing action of second spring 7 downwards under axial compressive force effect
It is disconnected, force spacing compression set to compress the first spring 5 and move down, so as to promote mandrel 4 to move down, grab the resistance of deck 6
When the first spring 5 is compressed to certain position under hindering, claw 10 is displaced downwardly to the fishing neck for catching presetting system adjustable choke, positioned
Device realizes that claw 10 positions, and prevents from loosening, and can now complete the fishing operation of presetting system adjustable choke, pass through piano wire
By fishing tool string（Band adjustable choke）All smoothly act pit shaft.
Presetting system underground adjustable choke include be sequentially connected from top to bottom bottom filters, packing element, valve seat, valve rod,
Slip spider, slips, lock ring, motor, control board, fishing neck, signal receiver.Wherein, during fishing operation, claw
10 drag fishing neck upwards, and packing element axially loaded is released, separated with prefabricated seating nipple, while claw returns in the presence of radial load
Contracting, makes flow controller unfreezing, by piano wire by fishing tool string（Band adjustable choke）All smoothly act pit shaft.
Embodiment 2：
On the basis of embodiment 1, present embodiments provide a kind of presetting system underground adjustable choke as shown in Figure 1 and use
Fishing tool, the spacing compression set are cone cap 2, and the top of cone cap 2 is circular cone, and bottom is cylinder, the column part
It is fixedly connected with mandrel 4.
The positioner is made up of locating piece 9 and groove, and the locating piece 9 is on mandrel 4, and the groove is located at card
On pawl 10.
In the present embodiment, first spring 5 is cylindrical spring, and the second spring 7 is Rectangular Spring.
The top connection 1 and housing are integrated, and the upper end of top connection 1 is provided with screw thread.Top connection 1 and piano wire instrument
String threaded connection, is easy to piano wire tool string to apply pulling force, joint button-type 15/16 to fishing tool ", taper 1:8, per inch
10 teeth.
The spacing compression set is fixedly connected with mandrel 4 by interior hexagonal pyramid head screw 3.
The top connection 1, housing, mandrel 4 and claw 10 are 35CrMo materials.Thermally treated hardness up to HBW197 ~
235, surface carries out phosphorating treatment, improves corrosion resistance.
Due to the setting of cone cap, when can avoid shaft bottom generation pressure oscillation, mandrel is pushed out, so as to can not successfully capture
Adjustable choke.
In summary, this presetting system underground adjustable choke fishing tool provided by the utility model, can be by advance
Put formula underground adjustable choke smoothly to pull out out of pit shaft, realize efficient workover treatment in pit shaft, improve wellbore integrity, structure
Design is simple, easy to use, can meet the salvaging needs of presetting system underground adjustable choke, is easy to carry out other in follow-up pit shaft
Workover treatment, practical, application effect is notable.
The part and the well-known components and common structure of the structure category industry or conventional that above example does not describe in detail
Means, do not describe one by one here.
Exemplified as above is only for example, not forming to the scope of protection of the utility model to of the present utility model
Limitation, it is every to be belonged to the same or analogous design of the utility model within the scope of protection of the utility model.
Claims (7)
1. fishing neck is arranged at a kind of presetting system underground adjustable choke fishing tool, presetting system underground adjustable choke top, its
It is characterised by：Including the top connection being sequentially connected from top to bottom（1）, housing, grab deck（6）And claw（10）, the claw
（10）Coordinate with fishing neck；
Mandrel is provided with the housing（4）, the mandrel（4）It is axially movable, the mandrel（4）On be arranged with successively from top to bottom
Spacing compression set, the first spring（5）, the spacing compression set and mandrel（4）It is fixedly connected, first spring（5）One
End connects with spacing compression set, and the other end is with grabbing deck（6）Upper end connects, the claw（10）To be multiple and along mandrel（4）
Bottom is circumferentially uniformly distributed, described to grab deck（6）On be arranged with second spring（7）, the second spring（7）In be provided be fixed on
Mandrel（4）On pin（8）, the mandrel（4）Bottom is provided with multiple positioners, the multiple positioner and claw（10）
Correspond and deck is grabbed on edge（6）The even circumferential of lower section is set.
A kind of 2. presetting system underground adjustable choke fishing tool according to claim 1, it is characterised in that：The limit
Position compression set is cone cap（2）, the cone cap（2）Top is circular cone, and bottom is cylinder, the column part and mandrel（4）Gu
Fixed connection.
A kind of 3. presetting system underground adjustable choke fishing tool according to claim 1, it is characterised in that：It is described fixed
Position device is by locating piece（9）Formed with groove, the locating piece（9）Located at mandrel（4）On, the groove is located at claw（10）
On.
4. a kind of presetting system underground adjustable choke fishing tool according to claim any one of 1-3, its feature exist
In：First spring（5）For cylindrical spring, the second spring（7）For Rectangular Spring.
5. a kind of presetting system underground adjustable choke fishing tool according to claim any one of 1-3, its feature exist
In：The top connection（1）It is integrated with housing, the top connection（1）Upper end is provided with screw thread.
6. a kind of presetting system underground adjustable choke fishing tool according to claim any one of 1-3, its feature exist
In：The spacing compression set and mandrel（4）Pass through interior hexagonal pyramid head screw（3）It is fixedly connected.
7. a kind of presetting system underground adjustable choke fishing tool according to claim any one of 1-3, its feature exist
In：The top connection（1）, housing, mandrel（4）And claw（10）It is 35CrMo materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720570172.1U CN206737875U (en) | 2017-05-22 | 2017-05-22 | A kind of presetting system underground adjustable choke fishing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720570172.1U CN206737875U (en) | 2017-05-22 | 2017-05-22 | A kind of presetting system underground adjustable choke fishing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206737875U true CN206737875U (en) | 2017-12-12 |
Family
ID=60567398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720570172.1U Active CN206737875U (en) | 2017-05-22 | 2017-05-22 | A kind of presetting system underground adjustable choke fishing tool |
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| Country | Link |
|---|---|
| CN (1) | CN206737875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044266A (en) * | 2017-05-22 | 2017-08-15 | 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 presetting system underground adjustable choke fishing tool |
-
2017
- 2017-05-22 CN CN201720570172.1U patent/CN206737875U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044266A (en) * | 2017-05-22 | 2017-08-15 | 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 presetting system underground adjustable choke fishing tool |
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