CN106285575A - Perforation tubular column - Google Patents
Perforation tubular column Download PDFInfo
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- CN106285575A CN106285575A CN201510236157.9A CN201510236157A CN106285575A CN 106285575 A CN106285575 A CN 106285575A CN 201510236157 A CN201510236157 A CN 201510236157A CN 106285575 A CN106285575 A CN 106285575A
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- sliding sleeve
- cylinder
- internal diameter
- tubular column
- diameter section
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- 230000005540 biological transmission Effects 0.000 claims description 17
- 230000003116 impacting effect Effects 0.000 claims description 15
- 238000005553 drilling Methods 0.000 claims description 11
- 230000037452 priming Effects 0.000 claims description 11
- 210000002445 nipple Anatomy 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 12
- 230000000977 initiatory effect Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 description 8
- 239000012535 impurity Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000000875 corresponding effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention provides a perforating string, which comprises a perforating gun arranged at the lower end of the perforating string, a pressure perforating initiation device connected with the upper end of the perforating gun and a depth correction short joint positioned above the pressure perforating initiation device, wherein an impact type circulating valve is also arranged between the pressure perforating initiation device and the depth correction short joint, so that liquid can flow out of the string to realize circulation, the problems that instruments cannot smoothly enter the perforating string due to the blockage of the string in the prior art, the string needs to be pulled down for multiple times, rework is caused, and the cost is increased are effectively solved, and the smoothness of the string and the related work of subsequent perforating are ensured.
Description
Technical field
The present invention relates to Oil/gas Well technical field of underground, particularly relate to a kind of perforation tubular column.
Background technology
When well workover perforations adding operation, lower entrance aperture tubing string is needed to carry out relevant perforating job.But enter under
During, perforation tubular column frequently contacts the borehole wall and the impurity being deposited on the borehole wall can be caused to fall in tubing string, from
And it being easily caused the blocking at tubing string variable buckle undergauge, the perforation tubular column school that finally impact is follow-up is deep and perforation is made
Industry.
Therefore, need to remove perforation tubular column at set intervals in actual mechanical process, it is rushed
Wash to prevent the generation of clogging.
But, remove perforation tubular column continually, not only can cause what perforation constructed to do over again, also can increase work
Industry cost.
Summary of the invention
The present invention provides a kind of perforation tubular column, efficiently solves tubing string blocking in the perforation tubular column of prior art
The instrument caused can not enter smoothly, and needs repeatedly to rise lower tubular column, causes and does over again, and increases asking of cost
Topic, it is ensured that the carrying out of the unimpeded and follow-up perforation related work of tubing string.
The present invention provides a kind of perforation tubular column, including the perforating gun and the institute that are located at described perforation tubular column lower end
State the pressure drilling priming device of perforating gun upper end connection and be positioned at above described pressure drilling priming device
The deep pipe nipple in school, it is characterised in that also set between the deep pipe nipple of described pressure drilling priming device and described school
There is impacting type circulating valve.
Perforation tubular column as above, optionally, described impacting type circulating valve includes cylinder and is located at cylinder
Interior sliding sleeve, the upper end of described cylinder connects top connection, and the lower end of described cylinder connects lower contact, described
Cylinder has the first internal diameter section and the second internal diameter section, in the internal diameter of described first internal diameter section is less than described second
The internal diameter of footpath section, described first internal diameter section and the second internal diameter section linking part form step, described second internal diameter
Section is positioned at the side, lower end of described cylinder, and the excircle of described sliding sleeve has annular boss, described annular
Described sliding sleeve is divided into Part I and Part II, described Part I and described cylinder by boss in the axial direction
First internal diameter section slipper seal of body connects, and described annular boss slides with the second internal diameter section of described cylinder
Being tightly connected, described lower contact is connected with the lower end of described cylinder, and described lower contact and described cylinder it
Between seal, the Part II of described sliding sleeve stretches in lower contact, and the Part II of sliding sleeve and lower contact it
Between slipper seal connect, the Part I of described sliding sleeve is arranged with shear sleeve, described shear sleeve is by cutting
Cutting pin to fix with sliding sleeve, described shear sleeve is positioned at the second internal diameter section of cylinder and is butted at step, described
There is on sliding sleeve the radial direction pressure transmission hole passed between annular boss and the end of lower contact, described radial direction pressure transmission
Being provided with the striker i.e. fractureed under certain vertical in hole, the root of described striker has axial blind hole,
Described blind hole protrudes from described sliding sleeve inwall, and the root of described striker is tightly connected with described radial direction pressure transmission hole,
The head of described striker is positioned at inside sliding sleeve, and the end of the Part I side of described sliding sleeve is provided with necessarily
Closure dish i.e. broken under external force collision, described cylinder has circulation port radially, outside described sliding sleeve
Have on wall circumference draw-in groove, be provided with slotted collar in described draw-in groove, described cylinder or lower contact have with
The backing stop structure that slotted collar matches.
Perforation tubular column as above, optionally, described slotted collar is positioned at the Part II of sliding sleeve, institute
Stating backing stop structure is the end that lower contact is positioned at cylinder.
Perforation tubular column as above, optionally, described slotted collar is positioned at the annular boss of described sliding sleeve
Place, described backing stop structure is the annular groove being opened in cylinder the second internal diameter section.
Perforation tubular column as above, optionally, described slotted collar is positioned at the Part I of described sliding sleeve,
Described backing stop structure is the annular groove being opened in cylinder the first internal diameter section.
Perforation tubular column as above, optionally, it is heavy that the end of the Part I side of described sliding sleeve has
Hole, described closure dish is located in described counterbore, described sliding sleeve arranges fixing device described closure dish is solid
In described counterbore.
Perforation tubular column as above, optionally, described fixing device is that the inner thread of countersink region connects
Fixing nut.
Perforation tubular column as above, optionally, described fixing device is the fixing pin being connected with sliding sleeve.
Perforation tubular column as above, optionally, described closure dish is glass or pottery is made.
Perforation tubular column as above, optionally, described top connection and described cylinder integral structure or institute
State top connection to be threaded connection with described cylinder.
Perforation tubular column as above, optionally, described lower contact is also by holding screw and described cylinder
Fixing.
The perforation tubular column that the present invention provides, including on perforating gun and the perforating gun of being located at perforation tubular column lower end
Hold the pressure drilling priming device connected and be positioned at the deep pipe nipple in the school above pressure drilling priming device, in pressure
The problem impacting type circulation for solving tubing string blocking it is additionally provided with between the deep pipe nipple of power tapping explosion initiating device and school
Valve, so that liquid can flow out realization circulation from tubing string, efficiently solves the perforation of prior art
The instrument that in tubing string, tubing string blocking causes can not enter smoothly, and needs repeatedly to rise lower tubular column, causes and does over again,
The problem increasing cost, it is ensured that the carrying out of the unimpeded and follow-up perforation related work of tubing string.
Accompanying drawing explanation
Fig. 1 is that the structure of the impacting type circulating valve of the present invention cuts open figure；
Fig. 2 is A portion enlarged drawing in Fig. 1；
Fig. 3 is B portion enlarged drawing in Fig. 1.
Description of reference numerals:
1: cylinder；
2: sliding sleeve；
3: top connection；
4: lower contact；
5: shear sleeve；
6: shear pin；
7: striker；
8: closure dish；
9: slotted collar
101: the first internal diameter sections；
102: the second internal diameter sections
103: radial circulation hole；
104: step；
201: annular boss；
202: Part I；
203: Part II；
204: radially pressure transmission hole；
701: blind hole；
702: annular grooving；
11: sealing ring；
9: snap ring.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with this
Accompanying drawing in bright embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention,
Obviously, described embodiment is a part of embodiment of the present invention rather than whole embodiments.Based on
Embodiment in the present invention, those of ordinary skill in the art are institute on the premise of not making creative work
The every other embodiment obtained, broadly falls into the scope of protection of the invention.
Fig. 1 is that the structure of the impacting type circulating valve of the present invention cuts open figure；Fig. 2 is A portion enlarged drawing in Fig. 1；
Fig. 3 is B portion enlarged drawing in Fig. 1.
The present embodiment provides a kind of perforation tubular column, including perforating gun and the perforation of being located at perforation tubular column lower end
Rifle upper end connect pressure drilling priming device and be positioned at the deep pipe nipple in the school above pressure drilling priming device,
The problem impacting type for solving tubing string blocking it is additionally provided with between the deep pipe nipple of pressure drilling priming device and school
Circulating valve.
The perforation tubular column that the present invention provides so that liquid can flow out realization circulation, efficient solution from tubing string
The instrument that in the perforation tubular column of prior art of having determined, tubing string blocking causes can not enter smoothly, and needs repeatedly
Play lower tubular column, cause and do over again, the problem increasing cost, it is ensured that the unimpeded and follow-up perforation of tubing string is correlated with
The carrying out of work.
On the basis of above-described embodiment, as shown in Figure 1 to Figure 3, impacting type circulating valve in perforation tubular column
Including cylinder 1 and the sliding sleeve 2 being located in cylinder 1, the upper end of cylinder 1 connects top connection 3, cylinder 1
Lower end connects lower contact 4, and cylinder 1 has the first internal diameter section 101 and the second internal diameter section 102, the first internal diameter
The internal diameter of section 101 internal diameter less than 102, the first internal diameter section 101 and the second internal diameter section 102 linking part shape
Becoming step 104, the second internal diameter section 102 is positioned at the side, lower end of cylinder 1, and the excircle of sliding sleeve 2 has
Having annular boss 201, sliding sleeve 2 is divided into Part I 202 and second by annular boss 201 in the axial direction
Part 203, Part I 202 is connected with the first internal diameter section 101 slipper seal of cylinder 1, convex annular
Platform 201 is connected with the second internal diameter section 102 slipper seal of cylinder 1, lower contact 4 and the lower end of cylinder 1
Connecting, and seal between lower contact 4 and cylinder 1, the Part II 203 of sliding sleeve 2 stretches into lower contact 4
In, and between the Part II 203 of sliding sleeve 2 and lower contact 4, slipper seal is connected, the first of sliding sleeve 2
Being arranged with shear sleeve 5 in part 202, shear sleeve 5 is fixed with sliding sleeve 2 by shear pin 6, shears
Set 5 is positioned at the second internal diameter section 102 of cylinder 1 and is butted at step 104, sliding sleeve 2 has and passes to ring
Radial direction pressure transmission hole 204 between the end of shape boss 201 and lower contact 4, radially sets in pressure transmission hole 204
Having the striker 7 i.e. fractureed under certain vertical, the root of striker 7 has axial blind hole 701, blind
Hole 701 protrudes from sliding sleeve 2 inwall, and the root of striker 7 is tightly connected with radially pressure transmission hole 204, striker
It is internal that the head of 7 is positioned at sliding sleeve 2, and the end of Part I 202 side of sliding sleeve 2 is provided with outside certain
The closure dish 8 that power is i.e. broken under clashing into, cylinder 1 has circulation port 103 radially, the outer wall of sliding sleeve 2
On have circumference draw-in groove, be provided with slotted collar 9, cylinder 1 or lower contact 4 in draw-in groove and have and opening
The backing stop structure that snap ring 9 matches.
In the present embodiment, top connection 3 and lower contact 4 can be attached by screw thread, when using spiral shell
When stricture of vagina mode is attached, lower contact 4 has external screw thread, and the lower end of cylinder 1 has and lower contact 4
The female thread that external screw thread is adaptive；Top connection 3 and lower contact 4 can also be by the way of engagings or other
Mode is attached, and is set according to concrete practical situation for connected mode, and this is not made by the present invention
Limit.In the impacting type circulating valve that the present embodiment provides, prominent shear sleeve to be avoided in the end of shear pin 6
The outer surface of 5, can be by offering groove at the excircle of shear sleeve 5 so that shear pin 6 is located at
To avoid the outer surface of prominent shear sleeve 5 in this groove on the excircle of shear sleeve 5；Or, pass through
Excircle at shear sleeve 5 offers pin counterbore, so that shear pin 6 is located in this pin counterbore
To avoid the end of shear pin 6 to highlight the outer surface of shear sleeve 5, certainly for avoiding shear pin 6
End highlight the measure of outer surface of shear sleeve 5, the present invention is not restricted.
It should be noted that the direction of blind hole 701 is for the direction of striker 7, namely
Saying, the axial direction of blind hole 701 is identical with the axial direction of striker 7, and the direction and the axle of sliding sleeve 2
Perpendicular to direction；Equally, the direction of pressure transmission hole 204 is also for the direction of striker 7,
The axial direction of pressure transmission hole 204 is identical with the axial direction of striker 7, and the direction and sliding sleeve 2 is axial
Direction is perpendicular.
Also, it should be noted shear pin 6 is integrally fixed on sliding sleeve 2, can select at sliding sleeve 2
Upper shed is so that shear pin 6 is embedded in sliding sleeve 2, it would however also be possible to employ make shear pin otherwise
6 are fixed on sliding sleeve 2, the invention is not limited in this regard.Shear sleeve 5 is the circulus with opening,
The openings of sizes offered should match with the fineness of shear pin 6, so that in assembling process
In, sliding sleeve 2 enters the lower ending opening of cylinder 1 and upwards slides into certain distance, the shear pin on sliding sleeve 2
Nail 6 can snap in shear sleeve 5, if shear sleeve 5 too small openings, and shear pin 6 would be the thickest, meeting
Shear pin 6 cannot be snapped in shear sleeve 5.
In the present embodiment, when needs liquid circulates, shear sleeve 5 stops sliding sleeve 2 to block circulation port 103,
Circulation port 103 turns on, and now, the transfer canal opening part that top connection 3 is connected can install booster pump,
Liquid in tubing string is carried out supercharging, and the fluid pressure in tubing string is more than the fluid pressure outside tubing string, thus
Sweep along the impurity in tubing string by radial circulation hole in tubing string under the effect of the pressure liquid continuously
103 flow out, simultaneously because the block of closure dish 8, these liquid may not flow into below tubing string；Work as needs
When circulation port is closed, the weight come from top connection 3 direction smashes closure dish 8, and continues whereabouts and sever
Pin 7, the axial blind hole 701 in striker 7 turns on radially pressure transmission hole 204, and highly pressurised liquid enters tubing string
Lower section, is flow between the end of annular boss 201 and lower contact 4 by the place of severing from striker 7 and acts on
In annular boss 201 and lower contact 4, it is applied to annular boss 201 active force upwards and is concurrently applied to
The active force that lower contact 4 is downward, both active forces all can make sliding sleeve 2 move upward, work as active force
Arriving certain value, the shear pin 6 of fixed shear set 5 is cut off, and sliding sleeve 2 is about to circulation port 103 envelope
Closing, certain position to be risen to, slotted collar 9 and backing stop structure effect, sliding sleeve 2 is the most up, with
Time also stop sliding sleeve 2 descending.
The perforation tubular column that the present invention provides is by offering circulation port 103 on the cylinder 1 of impacting type circulating valve
Realize the circulation of fluid, such that it is able to the impurity in tubing string etc. discharged with the fluid of circulation, it is to avoid miscellaneous
Matter blocking tubing string.And by the envelope arranged in the upper end of the sliding sleeve 2 within the cylinder 1 of impacting type circulating valve
In stifled dish 8 can avoid the tubing string below impurity entrance, it is to avoid the tubing string of lower section is resulted in blockage.Tubing string
After unimpeded, by under the instrument (such as depth correction instrument) that enters the closure dish 8 of impacting type circulating valve is smashed, and
Striker 7 being struck off, the highly pressurised liquid in such well is entered into by the radial direction pressure transmission hole 204 at striker 7
Between annular boss and the end of lower contact 4 of sliding sleeve 2, thus upward pressure to sliding sleeve 2, cutting
Cutting pin 6, to cut off rear sliding sleeve 2 up, is closed by circulation port, in order to tubing string carries out the operation of corresponding technique,
Thus efficiently solve tubing string blocking in the perforation tubular column of prior art and cause instrument not enter smoothly, and
Need repeatedly to rise lower tubular column, cause and do over again, the problem increasing cost, it is ensured that tubing string unimpeded and follow-up
The carrying out of perforation related work.
On the basis of above-described embodiment, as in figure 2 it is shown, impacting type in the perforation tubular column of present invention offer
The striker 7 of circulating valve is referred to the structure of shear pin 6, and offers blind hole 701, in order to hitting
Pin 7 makes radially pressure transmission hole 204 turn on after fractureing.And can fracture according to practical situation design striker 7
Tangential force, in order to striker 7 can be struck off by the instrument entered under passing through in the application.In order to striker 7 exists
Application process can fracture smoothly, the excircle of striker 7 has annular grooving 702, and annular is cut
The position of offering of groove 702 should be depending on the length in ablepsia hole 701, if annular grooving 702 is offered too
Crossing the outward flange away from sliding sleeve 2, striker 7 can not realize after being severed at this annular grooving 702 and manage
The conducting of post, then highly pressurised liquid enters less than in blind hole 701 and then enter less than in pressure transmission hole 204, causes
Make the sliding sleeve 2 cannot be up, so in actual application, annular grooving 702 and sliding sleeve 2 outward flange
Distance should be less than the length of blind hole 701 so that blind hole 701 can be with tubing string after striker 7 fractures
Conducting, so under clashing into, striker 7 the most annularly grooving 702 disconnects, and the blind hole 701 of striker 7 becomes
Through hole, is then also switched on the radial direction pressure transmission hole 204 on sliding sleeve 2.Closure dish 8 in the present invention is permissible
Design its external force being crashed to pieces as required.So that the instrument entered under passing through in the application can will block dish
8 smash.I.e. it is crashed to pieces under certain external force collision as long as the material of closure dish 8 meets, but material
Hardness should not be too large or too small, hardness is excessive, closure dish 8 can be made to be difficult to be crashed to pieces, hardness mistake
Little, closure dish 8 can be made easily broken under the pressure effect of highly pressurised liquid, therefore, closure dish 8
Intensity size should be moderate, and in actual applications, the material of closure dish 8 can be glass or pottery.
On the basis of above-described embodiment, top connection 3 and cylinder 1 can be integral structures, or on
Joint 3 is threaded connection with cylinder 1, the invention is not limited in this regard.When top connection 3 and cylinder 1
Time threaded, the end stretching into the top connection 3 within cylinder 1 can be in sliding sleeve 2 closed circulation hole 103
Rear prevention sliding sleeve 2 continues up.It is of course also possible to sliding by arranging boss on cylinder 1 inwall
Sliding sleeve 2 is stoped to continue up after overlapping 2 closed circulation holes 103.
On the basis of above-described embodiment, lower contact 4 can also be fixed with cylinder 1 by holding screw 10,
So that lower contact 4 can be tightr with the connection of cylinder 1.
On the basis of above-described embodiment, the end of Part I 202 side of sliding sleeve 2 should be with circulation port
The lower edge of 103 flushes with or slightly higher than the lower edge of circulation port 103, and cannot be below 103 times edges of circulation port,
Because if the end of Part I 202 side of sliding sleeve 2 is less than 103 times edges of circulation port, can cause
A part of impurity is deposited on closure dish 8, and the only end of Part I 202 side of sliding sleeve 2 is concordant
Or the lower edge of slightly above circulation port 103, in iterative cycles washing well process, the liquid in tubing string is at pressure
Effect under the impurity in tubing string just can be swept along constantly to be flowed out by radial circulation hole 103, and keep away
Exempt to stockpile on closure dish 8.
On the basis of above-described embodiment, slotted collar 9 may be located at the Part II 203 of sliding sleeve 2,
Backing stop structure is the end that lower contact 4 is positioned at cylinder 1.Close when being about to circulation port 103 on sliding sleeve 2
After, slotted collar 9 walks to the end of lower contact 4, slotted collar 9 flick and with the end of lower contact 4
Effect, sliding sleeve 2 is the most up, the most also stops sliding sleeve 2 to run downwards, it is achieved to circulation port 103
Closure.Certainly slotted collar 9 and the position of corresponding backing stop structure and specific configuration are not limited to this enforcement
Example, slotted collar 9 and the position of corresponding backing stop structure and specific configuration are not construed as limiting by the present invention.As
Slotted collar 9 may be located at the annular boss 201 of sliding sleeve 2, and accordingly, backing stop structure is for being opened in
The annular groove of the cylinder 1 second internal diameter section 102 (position of the slotted collar 9 in the present embodiment and corresponding
The structure of backing stop structure and position those skilled in the art will be understood that therefore identical structure be not provided
Figure), when be about on sliding sleeve 2 circulation port 103 close after, slotted collar 9 walks to cylinder 1 second internal diameter
At the annular groove of section 102, slotted collar 9 flicks and acts on annular groove, it is achieved to circulation port 103
Closure, simultaneously stop sliding sleeve 2 slide in the axial direction.Or slotted collar 9 may be located at sliding sleeve 2
Part I 202, accordingly, backing stop structure is that to be opened in the annular of cylinder 1 first internal diameter section 101 recessed
Groove, equally, when be about on sliding sleeve 2 circulation port 103 close after, slotted collar 9 walks to cylinder 1 second
At the annular groove of internal diameter section 102, slotted collar 9 flicks and acts on annular groove, it is achieved to circulation port
The closure of 103, stops sliding sleeve 2 to slide in the axial direction simultaneously.
On the basis of above-described embodiment, as it is shown on figure 3, the end of Part I 202 side of sliding sleeve 2
Portion has counterbore, and closure dish 8 is located in counterbore, sliding sleeve 2 arranges fixing device and is fixed by closure dish 8
In counterbore.This kind of structure is easy to installation and the replacing of closure dish 8.Certainly, it is possible to use other suitable
Form closure dish 8 is fixed in counterbore, wherein fixing device can use fixing nut, fixing spiral shell
Mother is connected with the inner thread of the countersink region of sliding sleeve 2, thus is fixed in counterbore by closure dish 8.Fixing
Device or fixing pin can be selected, multiple fixing pins are connected with sliding sleeve 2, thus by closure dish 8
It is fixed in counterbore.Fixing device can also be baffle ring, and above closure dish 8, placement baffle ring is in counterbore,
With fixing pin, baffle ring is fixed with sliding sleeve 2.As it is shown on figure 3, fixing device uses snap ring 9,
Having draw-in groove on the inwall of counterbore, snap ring 9 is located in this draw-in groove, thus is fixed on by closure dish 8
In counterbore.
On the basis of above-described embodiment, sealing ring 11 can be provided with between closure dish 8 and sliding sleeve 2,
It is achieved thereby that the good closure between closure dish 8 and sliding sleeve 2.
On the basis of above-described embodiment, each portion of impacting type circulating valve in the perforation tubular column that the present invention provides
Sealing between part can be realized by O.In the present embodiment, the Part I 202 of sliding sleeve 2
On at least provided with two groups of O, often group O can be single O, it is also possible to be two or two
Individual above O combination.Between these two groups of O, there is certain distance, in order to up at sliding sleeve 2
When being closed by circulation port 103, circulation port is between two groups of O, thus realizes circulation port 103
Good closing.During as it is shown in figure 1, arrange backing stop structure on the end of lower contact 4, accordingly, open
Mouth snap ring 9 is positioned on the Part II 203 of sliding sleeve 2, for seal between sliding sleeve 2 and lower contact 4
O by for slotted collar 9 closer to the end of sliding sleeve 2 Part II 203 side, i.e. open card
Ring 9 is positioned at the inner side of this O.When slotted collar 9 acts on the end of lower contact 4, this O shape
Circle still will seal between sliding sleeve 2 and lower contact 4.For the O sealed between sliding sleeve 2 and miscellaneous part
Shape circle is arranged on sliding sleeve 2, i.e. offers seal groove on the cylindrical of sliding sleeve 2, and O is arranged at close
In sealing groove.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, rather than right
It limits；Although the present invention being described in detail with reference to foregoing embodiments, this area common
Skilled artisans appreciate that the technical scheme described in foregoing embodiments still can be modified by it,
Or the most some or all of technical characteristic is carried out equivalent；And these amendments or replacement, and
The essence not making appropriate technical solution departs from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a perforation tubular column, including: the perforating gun being located at described perforation tubular column lower end is penetrated with described
Rifle upper end, hole connect pressure drilling priming device and be positioned at above described pressure drilling priming device
The deep pipe nipple in school, it is characterised in that between the deep pipe nipple of described pressure drilling priming device and described school also
It is provided with impacting type circulating valve；
Described impacting type circulating valve includes cylinder and the sliding sleeve being located in cylinder, and the upper end of described cylinder connects
Top connection, the lower end of described cylinder connects lower contact, and described cylinder has the first internal diameter section and the second internal diameter
Section, the internal diameter of described first internal diameter section less than the internal diameter of described second internal diameter section, described first internal diameter section and
Second internal diameter section linking part forms step, and described second internal diameter section is positioned at the side, lower end of described cylinder, institute
Stating and have annular boss on the excircle of sliding sleeve, described sliding sleeve is divided into by described annular boss in the axial direction
A part and Part II, described Part I is connected with the first internal diameter section slipper seal of described cylinder,
Described annular boss is connected with the second internal diameter section slipper seal of described cylinder, described lower contact and described cylinder
The lower end of body connects, and seals between described lower contact and described cylinder, and the Part II of described sliding sleeve is stretched
Enter in lower contact, and between the Part II of sliding sleeve and lower contact, slipper seal is connected, the of described sliding sleeve
Being arranged with shear sleeve in a part, described shear sleeve is fixed with sliding sleeve by shear pin, described shear sleeve
Be positioned at the second internal diameter section of cylinder and be butted at step, described sliding sleeve has pass to annular boss with under connect
Radial direction pressure transmission hole between the end of head, is provided with under certain vertical in described radial direction pressure transmission hole i.e.
The striker fractureed, the root of described striker has axial blind hole, and described blind hole protrudes from described sliding sleeve inwall,
The root of described striker is tightly connected with described radial direction pressure transmission hole, and the head of described striker is positioned at inside sliding sleeve,
The end of the Part I side of described sliding sleeve is provided with under certain external force collision i.e. broken closure dish, institute
State and on cylinder, have circulation port radially, the outer wall of described sliding sleeve has the draw-in groove of circumference, described draw-in groove
Inside being provided with slotted collar, described cylinder or lower contact have the backing stop structure matched with slotted collar.
Perforation tubular column the most according to claim 1, it is characterised in that described slotted collar is positioned at cunning
The Part II of set, described backing stop structure is the end that lower contact is positioned at cylinder.
Perforation tubular column the most according to claim 1, it is characterised in that described slotted collar is positioned at institute
Stating at the annular boss of sliding sleeve, described backing stop structure is the annular groove being opened in cylinder the second internal diameter section.
Perforation tubular column the most according to claim 1, it is characterised in that described slotted collar is positioned at institute
Stating the Part I of sliding sleeve, described backing stop structure is the annular groove being opened in cylinder the first internal diameter section.
Perforation tubular column the most according to claim 1, it is characterised in that the Part I of described sliding sleeve
The end of side has counterbore, and described closure dish is located in described counterbore, and described sliding sleeve arranges fixing dress
Put and described closure dish is fixed in described counterbore.
Perforation tubular column the most according to claim 5, it is characterised in that described fixing device is counterbore
The fixing nut that the inner thread in portion connects.
Perforation tubular column the most according to claim 5, it is characterised in that described fixing device is and cunning
The fixing pin that set connects.
Perforation tubular column the most according to claim 1, it is characterised in that described closure dish be glass or
Pottery is made.
Perforation tubular column the most according to claim 1, it is characterised in that described top connection and described cylinder
Body integral structure or described top connection are threaded connection with described cylinder.
Perforation tubular column the most according to claim 1, it is characterised in that described lower contact also by
Holding screw is fixed with described cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510236157.9A CN106285575B (en) | 2015-05-11 | 2015-05-11 | Perforation tubular column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510236157.9A CN106285575B (en) | 2015-05-11 | 2015-05-11 | Perforation tubular column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106285575A true CN106285575A (en) | 2017-01-04 |
| CN106285575B CN106285575B (en) | 2019-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510236157.9A Active CN106285575B (en) | 2015-05-11 | 2015-05-11 | Perforation tubular column |
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| Country | Link |
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| CN (1) | CN106285575B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN110778293A (en) * | 2018-07-11 | 2020-02-11 | 中石化石油工程技术服务有限公司 | Multifunctional combined hole digger |
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|---|---|---|---|---|
| CN109138936A (en) * | 2017-06-15 | 2019-01-04 | 中国石油天然气股份有限公司 | Perforation operation auxiliary device |
| CN108518207A (en) * | 2018-03-26 | 2018-09-11 | 宝鸡石油机械有限责任公司 | It is a kind of to consider sleeve type perforating gun to be worth doing without leakage |
| CN108518207B (en) * | 2018-03-26 | 2021-01-26 | 宝鸡石油机械有限责任公司 | Sliding sleeve type perforating gun without chip leakage |
| CN110778293A (en) * | 2018-07-11 | 2020-02-11 | 中石化石油工程技术服务有限公司 | Multifunctional combined hole digger |
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