CN208564517U - A kind of TCP combined well testing axial multistage damper - Google Patents
A kind of TCP combined well testing axial multistage damper Download PDFInfo
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- CN208564517U CN208564517U CN201821299620.XU CN201821299620U CN208564517U CN 208564517 U CN208564517 U CN 208564517U CN 201821299620 U CN201821299620 U CN 201821299620U CN 208564517 U CN208564517 U CN 208564517U
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- outer cylinder
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- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 238000013016 damping Methods 0.000 claims abstract description 64
- 230000000694 effects Effects 0.000 claims abstract description 12
- 230000007704 transition Effects 0.000 claims description 25
- 230000003139 buffering effect Effects 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000035939 shock Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model relates to a kind of TCP combined well testing axial multistage dampers, belong to perforating oil gas well testing combination operation cushion technique field.It is made of upper outer cylinder, lower outer cylinder, top connection, lower contact, ram pot, piston cylinder, movable inner cylinder and inner cylinder, inner cylinder is provided in upper outer cylinder, piston cylinder is housed on the inner cylinder in upper outer cylinder, ram pot is fixed in upper outer cylinder above piston cylinder, piston cylinder top is fixed with lower damping fin, is fixed with damping fin on the inner cylinder above lower damping fin；Spacing collar is housed below piston cylinder；Upper spring is provided between spacing collar and piston cylinder.The damper can effectively eliminate the tubing string axial vibrations of perforating job generation, effectively prevent the poor disadvantage of existing single damping modes damping effect, greatly reinforced the cushioning ability of damper；Ensure the safety of test equipment and tool on tubing string above damper.
Description
Technical field
The utility model relates to a kind of TCP combined well testing axial multistage dampers, belong to the damping of perforating oil gas well testing combination operation
Technical field.
Background technique
During perforating job, great energy is generated while perforating gun is shot through stratum in narrow space, it should
Energy is communicated up and generates great impact load, so as to cause the deformation and axial vibrations of perforating test tubing string.Such shake
The raw dynamic force of movable property easily causes the damage of various test equipments and tool on tubing string, and perforating test pipe is even caused when serious
The buckling failure of column.So usually a damper is being installed above perforating gun, to reduce the vibration generated in perforating process
Influence to top tubing string.
Traditional perforating oil gas well damper mainly uses mechanical, fluid pressure type and three kinds of rubber.It is wherein mechanical main
Using spring shock absorption；Fluid pressure type is mainly adjusted by the drain age velocity of the size and number control buffer of damping hole, thus real
Existing damping purpose；Rubber is then by installing multistage packing element additional, and packing element deformation absorbs vibration when passing through contact.But practice discovery is single
One damping modes usually have that damping effect is bad, the not strong problem of cushioning ability.
Summary of the invention
The purpose of this utility model is that: a kind of defect can effectively avoid single damping modes damping effect difference is provided,
The TCP combined well testing axial multistage damper of cushioning ability is greatly reinforced.
The technical solution of the utility model is:
A kind of TCP combined well testing axial multistage damper, it is by upper outer cylinder, lower outer cylinder, top connection, lower contact, hydraulic
Cylinder, piston cylinder, movable inner cylinder and inner cylinder are constituted, it is characterised in that: are mutually threadedly coupled between upper outer cylinder and lower outer cylinder, upper outer cylinder
Ends screw is equipped with top connection, and inner cylinder is provided in upper outer cylinder, and one end of inner cylinder is threadedly coupled with top connection, inner cylinder it is another
End extends in lower outer cylinder, and piston cylinder is housed on the inner cylinder in upper outer cylinder, is fixed with ram pot in the upper outer cylinder above piston cylinder,
One end of piston cylinder extends in ram pot, and the piston cylinder top extended in ram pot is fixed with lower damping fin, lower damping fin
Damping fin is fixed on the inner cylinder of top；Spacing collar is equipped with by fixing pin in lower outer cylinder below piston cylinder；Limit
It is movably installed with transition sleeve on the sleeve of position, upper spring is provided between spacing collar and transition sleeve and piston cylinder；Limit sleeve
The lower outer cylinder of cylinder lower section is provided with spring retainer block, lower spring is housed, in transition sleeve between spring retainer block and spacing collar
Inner cylinder on be movably installed with movable inner cylinder, lower sleeve is housed, movable inner cylinder and lower sleeve connect on the inner cylinder below movable inner cylinder
It connects；One end of lower sleeve extends to transition sleeve outer end, and the lower sleeve screw thread for extending to transition sleeve outer end is equipped with lower contact,
One end of lower contact extends to lower outer cylinder outer end；Rubber sleeve is fixed with by cutting pin on lower sleeve above lower contact.
The upper port of the rubber sleeve is horn-like.
The movable inner cylinder end is equipped with buffering spacer.
The piston cylinder and it is lower between damping fin and ram pot to be slidably and sealingly connected with.
Damping fin through-hole is respectively arranged on the upper damping fin and lower damping fin.
The centre bore of the upper outer cylinder and lower outer cylinder is respectively stepped hole.
The piston cylinder is diameter-changing body, is connected and fixed between piston cylinder and upper outer cylinder by starting pin.
The lower port of the lower outer cylinder is contraction mouth.
It is fitting to connection between movable inner cylinder and lower sleeve；It is to be slidably connected between movable inner cylinder and lower sleeve and inner cylinder.
Advantage provided by the utility model is as follows:
1. the damper is matched using rubber, spring, hydraulic a variety of damping modes, by the way of Multistage damping, close
Reason distributes the damping intensity of dampings at different levels, effectively prevents the poor disadvantage of single damping modes damping effect, greatly
The strong cushioning ability of damper.
2. the level-one spring shock absorption mechanism and two-level spring damping of the damper act on simultaneously, damper pair is improved
The ability to bear of initial impact force.
3. the damper is using hydraulic shock-absorption as afterbody damping modes, two-stage remnants' is rushed before capable of effectively absorbing
Hit, so that the remaining impact force after buffer of damper damping greatly reduces, it is ensured that above damper test equipment and
The safety of tool.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is enlarged structure schematic diagram at the A in Fig. 1；
Fig. 3 is enlarged structure schematic diagram at the B in Fig. 1；
Fig. 4 is enlarged structure schematic diagram at the C in Fig. 1；
Fig. 5 is enlarged structure schematic diagram at the D in Fig. 1；
Fig. 6 be the utility model under spring and with spring work together status diagram；
Fig. 7 is the working state schematic representation after the utility model shear pin is cut.
In figure: 1, upper outer cylinder, 2, lower outer cylinder, 3, top connection, 4, lower contact, 5, ram pot, 6, piston cylinder, 7, activity in
Cylinder, 8, inner cylinder, 9, starting pin, 10, lower damping fin, 11, upper damping fin, 12, damping fin through-hole, 13, gasket, 14, fixation
Pin, 15, spacing collar, 16, transition sleeve, 17, upper spring, 18, spring retainer block, 19, lower spring, 20, lower sleeve, 21,
Shear pin, 22, rubber sleeve, 23, work pin, 24, buffering spacer.
Specific embodiment
The TCP combined well testing axial multistage damper is by upper outer cylinder 1, lower outer cylinder 2, top connection 3, lower contact 4, ram pot
5, piston cylinder 6, movable inner cylinder 7 and inner cylinder 8 are constituted, and are mutually threadedly coupled between upper outer cylinder 1 and lower outer cylinder 2, upper 1 end spiral shell of outer cylinder
Line is equipped with top connection 3, and the centre bore of upper outer cylinder 1 and lower outer cylinder 2 is respectively stepped hole；Inner cylinder 8 is provided in upper outer cylinder 1, it is interior
One end of cylinder 8 is threadedly coupled with top connection 3, and the other end of inner cylinder 8 extends in lower outer cylinder 2.It is equipped on inner cylinder in upper outer cylinder 1
Piston cylinder 6, piston cylinder 6 are diameter-changing body, are connected and fixed between piston cylinder 6 and upper outer cylinder 1 by starting pin 9.
It is fixed with ram pot 5 in the upper outer cylinder 1 of 6 top of piston cylinder, one end of piston cylinder 6 extends in ram pot 5, extends
6 top of piston cylinder in ram pot 5 moved fixing bolt and is fixed with lower damping fin 10, on the inner cylinder 8 of lower 10 top of damping fin
It is fixed with damping fin 11；It is machined with card slot on upper damping fin 11, by keeping upper damping fin 11 solid with being clasped on inner cylinder 8
It is fixed, damping fin through-hole 12 is respectively arranged on upper damping fin 11 and lower damping fin 10；Between upper damping fin 11 and lower damping fin 10
Cavity be provided with buffer, the junction of top connection 3 and ram pot 5 and piston cylinder 6 and ram pot 5 is respectively arranged with gasket
13, to prevent buffer from leaking out；It is to be slidably and sealingly connected between piston cylinder 6 and lower damping fin 10 and ram pot 5.
Spacing collar 15 is equipped with by fixing pin 14 in the lower outer cylinder 2 of 6 lower section of piston cylinder；It is movable on spacing collar 15
Transition sleeve 16 is installed, spacing collar 15 is interior stepped hole, and 16 end of transition sleeve is provided with boss, when installation, transition sleeve
Cylinder 16 is installed downwards from lower 2 upper end of outer cylinder, and spacing collar 15 carries out transition sleeve 16 by the cooperation of interior stepped hole and boss
Axially position.Upper spring 17 is provided between spacing collar 15 and transition sleeve 16 and piston cylinder 6；Under 15 lower section of spacing collar
Outer cylinder 2 is provided with spring retainer block 18, and outer sleeve 2 carries out axially position to spring retainer block 18 by interior stepped hole.
Lower spring 19 is housed, activity peace on the inner cylinder 8 in transition sleeve 16 between spring retainer block 18 and spacing collar 15
Equipped with movable inner cylinder 7, movable 7 end of inner cylinder is equipped with buffering spacer 24, to reduce the impact force bumped against with piston cylinder 6.Activity
Lower sleeve 20 is housed on the inner cylinder 8 of 7 lower section of inner cylinder, is fitting to connection between movable inner cylinder 7 and lower sleeve 20；Movable inner cylinder 7 is under
It is joyous dynamic connection between sleeve 20 and inner cylinder 8.One end of lower sleeve 20 extends to 16 outer end of transition sleeve, extends to transition sleeve
20 ends screw of lower sleeve of 16 outer ends is equipped with lower contact 4, and one end of lower contact 4 extends to lower 2 outer end of outer cylinder；Lower outer cylinder 2
Lower port be contraction mouth.Work pin 23 is provided between lower contact 4 and lower outer cylinder 2.On the lower sleeve 20 of 3 top of lower contact
It is fixedly mounted with rubber sleeve 22 by shear pin 21, the upper port of rubber sleeve 22 is horn-like.By transition sleeve when rubber sleeve 22 works
16 lower ends of cylinder squeeze, and contact rubber sleeve 22 and lower 2 inner wall of outer cylinder and generate friction, play the effect of bumper and absorbing shock；
When the damper works, it is communicated up in the very big energy of moment generation of perforating gun perforating job and generates tubing string
Axial vibrations, the vibration force the lower contact 4 of damper to have the tendency that moving upwards when being transmitted to damper position.Due to perforation
The impact force of generation is very big, can make be cut 23 moment of work pin of fixed lower contact 3, which starts to work.
After work pin 23 is cut, lower contact 3 and the lower sleeve 20 being threadedly coupled with it, movable inner cylinder 7 are transported upwards
It is dynamic, during this, the rubber sleeve 22 being fixed on lower sleeve 20 move upwards therewith and with the lower end in contact of transition sleeve 16, rubber
Gum cover 22 is crossed 16 lower end of sleeve and generates deformation outwardly against stretching, extension, and the rubber sleeve 22 after deformation is contacted with the inner wall of lower outer cylinder 2
Friction is generated, certain buffering and damping effect (level-one damping) can be played.
It with the continuation uplink of lower sleeve 20, rubber sleeve 22 and 18 lower end of spring retainer block and contacts, due to rubber sleeve 22
It is connect with lower sleeve 20 by shear pin 21, with the continuation uplink of lower sleeve 20, lower sleeve 20 is pushed by rubber sleeve 22
Spring retainer block 18 and transition sleeve 16 move upwardly together, and during this, spring retainer block 18 compresses lower spring 19；Activity
Inner cylinder 7 and transition sleeve 16 pass through its top compression upper spring 17(second level damping)；Lower spring 19 and upper spring 17 start to absorb
Vibration energy (working condition at this time is as shown in Figure 6).
When the decrement of upper spring 17 reaches the length of design, upper spring 17 is enough to the reaction force of transition sleeve 16
When big, transition sleeve 16 cuts shear pin 21 by its lower port；After shear pin 21 is cut, lower spring 19 loses constraint
Power starts to restore, at this point, lower contact 4, lower sleeve 20 and movable inner cylinder 7 continue up fortune under the action of remaining impact force
It is dynamic.When the buffering spacer 24 of movable 7 upper end of inner cylinder and 6 lower end of piston cylinder are bumped against, the absorbable a part impact of buffering spacer 24
Power, remaining impact force cut the starting pin 9 of fixed piston cylinder 6, and after starting pin 9 is cut, piston cylinder 6 is transported upwards
It is dynamic.Since 6 upper end of piston cylinder is equipped with lower damping fin 10, so that lower damping fin 10 be pushed to move up, make damping fin 11 under
The buffer that cavity is provided between damping fin 10 is extruded, and during squeezing buffer, buffer is then from upper Buddhist nun's piece 11 under
Damping fin through-hole 12 on damping fin 10 is discharged, and thus completes hydraulic shock-absorption (three-level damping), (such as Fig. 7 of working condition at this time
It is shown).
The TCP combined well testing axial multistage damper passes through 22 damping by friction of rubber sleeve, upper spring 17 and lower spring 19
The three-level associated shock-absorbing of damping, 6 hydraulic shock-absorption of piston cylinder is closed, the damping intensity of reasonable distribution dampings at different levels can be effective
The tubing string axial vibrations that perforating job generates are eliminated, the poor disadvantage of existing single damping modes damping effect is effectively prevented,
The cushioning ability of damper is greatly reinforced；Ensure the safety of test equipment and tool on tubing string above damper.
Claims (9)
1. a kind of TCP combined well testing axial multistage damper, it is by upper outer cylinder (1), lower outer cylinder (2), top connection (3), lower contact
(4), ram pot (5), piston cylinder (6), movable inner cylinder (7) and inner cylinder (8) are constituted, it is characterised in that: upper outer cylinder (1) and lower outer cylinder
(2) it is mutually threadedly coupled between, upper outer cylinder (1) ends screw is equipped with top connection (3), is provided with inner cylinder in upper outer cylinder (1)
(8), one end of inner cylinder (8) is threadedly coupled with top connection (3), and the other end of inner cylinder (8) extends in lower outer cylinder (2), upper outer cylinder
(1) piston cylinder (6) are housed on the inner cylinder (8) in, are fixed with ram pot (5), piston in the upper outer cylinder (1) above piston cylinder (6)
One end of cylinder (6) extends in ram pot (5), and piston cylinder (6) top extended in ram pot (5) is fixed with lower damping fin
(10), damping fin (11) are fixed on the inner cylinder (8) above lower damping fin (10)；In lower outer cylinder (2) below piston cylinder (6)
Spacing collar (15) are installed by fixing pin (14)；It is movably installed with transition sleeve (16), limits on spacing collar (15)
Upper spring (17) are provided between sleeve (15) and transition sleeve (16) and piston cylinder (6)；It is lower outer below spacing collar (15)
Cylinder (2) is provided with spring retainer block (18), lower spring (19) is housed between spring retainer block (18) and spacing collar (15), transition
It is movably installed with movable inner cylinder (7) on inner cylinder (8) in sleeve (16), is equipped with and traps on the inner cylinder (8) below movable inner cylinder (7)
Cylinder (20), movable inner cylinder (7) connect with lower sleeve (20)；One end of lower sleeve (20) extends to transition sleeve (16) outer end, prolongs
Lower sleeve (20) ends screw for extending to transition sleeve (16) outer end is equipped with lower contact (4), and one end of lower contact (4) extends to
Lower outer cylinder (2) outer end；Rubber sleeve (22) are fixedly mounted with by shear pin (21) on lower sleeve (20) above lower contact (4).
2. a kind of TCP combined well testing axial multistage damper according to claim 1, it is characterised in that: the rubber
It is horn-like for covering the upper port of (22).
3. a kind of TCP combined well testing axial multistage damper according to claim 1, it is characterised in that: the activity
Inner cylinder (7) end is equipped with buffering spacer (24).
4. a kind of TCP combined well testing axial multistage damper according to claim 1, it is characterised in that: the piston
It is to be slidably and sealingly connected between cylinder (6) and lower damping fin (10) and ram pot (5).
5. a kind of TCP combined well testing axial multistage damper according to claim 1, it is characterised in that: the upper resistance
Damping fin through-hole (12) are respectively arranged on Buddhist nun's piece (11) and lower damping fin (10).
6. a kind of TCP combined well testing axial multistage damper according to claim 1, it is characterised in that: described is upper outer
The centre bore of cylinder (1) and lower outer cylinder (2) is respectively stepped hole.
7. a kind of TCP combined well testing axial multistage damper according to claim 4, it is characterised in that: the piston
Cylinder (6) is diameter-changing body, is connected and fixed between piston cylinder (6) and upper outer cylinder (1) by starting pin (9).
8. a kind of TCP combined well testing axial multistage damper according to claim 1, it is characterised in that: described is lower outer
The lower port of cylinder (2) is contraction mouth；It is fixed by work pin (23) between lower outer cylinder (2) and lower contact (4).
9. a kind of TCP combined well testing axial multistage damper according to claim 1, it is characterised in that: movable inner cylinder
(7) it is fitting to connection between lower sleeve (20)；It is to be slidably connected between movable inner cylinder (7) and lower sleeve (20) and inner cylinder (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821299620.XU CN208564517U (en) | 2018-08-13 | 2018-08-13 | A kind of TCP combined well testing axial multistage damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821299620.XU CN208564517U (en) | 2018-08-13 | 2018-08-13 | A kind of TCP combined well testing axial multistage damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208564517U true CN208564517U (en) | 2019-03-01 |
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|---|---|---|---|
| CN201821299620.XU Expired - Fee Related CN208564517U (en) | 2018-08-13 | 2018-08-13 | A kind of TCP combined well testing axial multistage damper |
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| CN (1) | CN208564517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825181A (en) * | 2018-08-13 | 2018-11-16 | 长江大学 | A kind of TCP combined well testing axial multistage damper |
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2018
- 2018-08-13 CN CN201821299620.XU patent/CN208564517U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825181A (en) * | 2018-08-13 | 2018-11-16 | 长江大学 | A kind of TCP combined well testing axial multistage damper |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190301 Termination date: 20210813 |
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| CF01 | Termination of patent right due to non-payment of annual fee |