CN204703870U - Perforation tubular column - Google Patents
Perforation tubular column Download PDFInfo
- Publication number
- CN204703870U CN204703870U CN201520299635.6U CN201520299635U CN204703870U CN 204703870 U CN204703870 U CN 204703870U CN 201520299635 U CN201520299635 U CN 201520299635U CN 204703870 U CN204703870 U CN 204703870U
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- cylindrical shell
- tubular column
- internal diameter
- diameter section
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- Expired - Fee Related
Links
- 210000002445 nipple Anatomy 0.000 claims abstract description 10
- 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 12
- 230000037452 priming Effects 0.000 claims description 12
- 239000011521 glass Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 11
- 230000000977 initiatory effect Effects 0.000 abstract 3
- 239000012535 impurity Substances 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process 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
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides a perforating string, including locating the perforating gun of perforating string lower extreme, the pressure trompil initiating device of being connected with the perforating gun upper end and the school depth nipple joint that is located pressure trompil initiating device top, still be equipped with the striking formula circulating valve between pressure trompil initiating device and school depth nipple joint, thereby make liquid can follow the tubular column and flow out and realize the circulation, tubular column blocks up and causes the instrument to get into smoothly in the perforating string of effectively having solved prior art, and need play the tubular column many times, cause the rework, the problem of increase cost, the unblocked of tubular column and the going on of the relevant work of follow-up perforation have been guaranteed.
Description
Technical field
The utility model relates to Oil/gas Well technical field of underground, particularly relates to a kind of perforation tubular column.
Background technology
When the operation of well workover perforations adding, lower entrance aperture tubing string is needed to carry out relevant perforating job.But under in the process that enters, perforation tubular column frequently contacts the borehole wall and the impurity be deposited on the borehole wall can be caused to fall in tubing string, thus easily causes the blocking at tubing string variable buckle undergauge place, the dark and perforating job in the follow-up perforation tubular column school of final impact.
Therefore, need to remove perforation tubular column at set intervals in actual mechanical process, the generation preventing clogging is rinsed to it.
But remove perforation tubular column continually, that perforation not only can be caused to construct does over again, and also can increase operating cost.
Utility model content
The utility model provides a kind of perforation tubular column, efficiently solve tubing string in the perforation tubular column of prior art to block the instrument caused and can not enter smoothly, and need repeatedly to rise lower tubular column, cause and do over again, increase the problem of cost, ensure that the carrying out of the unimpeded of tubing string and follow-up perforation related work.
The utility model provides a kind of perforation tubular column, the dark pipe nipple in school comprising the perforating gun being located at described perforation tubular column lower end, the pressure drilling priming device be connected with described perforating gun upper end and be positioned at above described pressure drilling priming device, it is characterized in that, between the dark pipe nipple of described pressure drilling priming device and described school, be also provided with impacting type circulating valve.
Perforation tubular column as above, optionally, described impacting type circulating valve comprises cylindrical shell and is located at the sliding sleeve in cylindrical shell, the upper end of described cylindrical shell connects top connection, the lower end of described cylindrical shell connects lower contact, described cylindrical shell has the first internal diameter section and the second internal diameter section, the internal diameter of described first internal diameter section is less than the internal diameter of described second internal diameter 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 cylindrical shell, the excircle of described sliding sleeve has annular boss, described sliding over axially is divided into Part I and Part II by described annular boss, described Part I is connected with the first internal diameter section slipper seal of described cylindrical shell, described annular boss is connected with the second internal diameter section slipper seal of described cylindrical shell, described lower contact is connected with the lower end of described cylindrical shell, and seal between described lower contact and described cylindrical shell, the Part II of described sliding sleeve stretches in lower contact, and the Part II of sliding sleeve is connected with slipper seal between lower contact, the Part I of described sliding sleeve is arranged with shear sleeve, described shear sleeve is fixed by shear pin and sliding sleeve, described shear sleeve is positioned at the second internal diameter section of cylindrical shell and is butted on step place, described sliding sleeve has the radial pressure transmission hole passed between annular boss and the end of lower contact, the striker namely fractureed under certain vertical is provided with in described radial pressure transmission hole, the root of described striker has axial blind hole, described blind hole protrudes from described sliding sleeve inwall, root and the described radial pressure transmission hole of described striker are tightly connected, the head of described striker is positioned at sliding sleeve inside, the end of the Part I side of described sliding sleeve is provided with shutoff dish namely broken under certain external force collision, described cylindrical shell has radial circulation port, the outer wall of described sliding sleeve has the draw-in groove of circumference, slotted collar is provided with in described draw-in groove, described cylindrical shell or lower contact have the backing stop structure matched with slotted collar.
Perforation tubular column as above, optionally, described slotted collar is positioned at the Part II of sliding sleeve, and described backing stop structure is the end that lower contact is positioned at cylindrical shell.
Perforation tubular column as above, optionally, described slotted collar is positioned at the annular boss place of described sliding sleeve, and described backing stop structure is the annular groove being opened in cylindrical shell second internal diameter section.
Perforation tubular column as above, optionally, described slotted collar is positioned at the Part I of described sliding sleeve, and described backing stop structure is the annular groove being opened in cylindrical shell first internal diameter section.
Perforation tubular column as above, optionally, the end of the Part I side of described sliding sleeve has counterbore, and described shutoff dish is located in described counterbore, described sliding sleeve is arranged fastening devices and is fixed in described counterbore by described shutoff dish.
Perforation tubular column as above, optionally, described fastening devices is the hold-down nut that the inner thread of countersink region connects.
Perforation tubular column as above, optionally, described fastening devices is the fixing pin be connected with sliding sleeve.
Perforation tubular column as above, optionally, described shutoff dish is that glass or pottery are made.
Perforation tubular column as above, optionally, described top connection and described cylindrical shell integral structure or described top connection and described cylindrical shell are threaded connection.
Perforation tubular column as above, optionally, described lower contact is also fixed by holding screw and described cylindrical shell.
The perforation tubular column that the utility model provides, comprise the perforating gun being located at perforation tubular column lower end, the pressure drilling priming device be connected with perforating gun upper end and the dark pipe nipple in school be positioned at above pressure drilling priming device, the problem impacting type circulating valve for solving tubing string blocking is also provided with between the dark pipe nipple of pressure drilling priming device and school, thus make liquid can flow out realization circulation from tubing string, efficiently solve tubing string in the perforation tubular column of prior art to block the instrument caused and can not enter smoothly, and need repeatedly to rise lower tubular column, cause and do over again, increase the problem of cost, ensure that the carrying out of the unimpeded of tubing string and follow-up perforation related work.
Accompanying drawing explanation
Fig. 1 is that the structure of impacting type circulating valve of the present utility model 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: cylindrical shell;
2: sliding sleeve;
3: top connection;
4: lower contact;
5: shear sleeve;
6: shear pin;
7: striker;
8: shutoff 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: radial pressure transmission hole;
701: blind hole;
702: annular grooving;
11: sealing ring;
9: snap ring.
Detailed description of the invention
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of the utility model protection.
Fig. 1 is that the structure of impacting type circulating valve of the present utility model 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, the dark pipe nipple in school comprising the perforating gun being located at perforation tubular column lower end, the pressure drilling priming device be connected with perforating gun upper end and be positioned at above pressure drilling priming device, is also provided with the problem impacting type circulating valve for solving tubing string blocking between the dark pipe nipple of pressure drilling priming device and school.
The perforation tubular column that the utility model provides, liquid can be flowed out from tubing string and realize circulation, efficiently solve tubing string in the perforation tubular column of prior art to block the instrument caused and can not enter smoothly, and need repeatedly to rise lower tubular column, cause and do over again, increase the problem of cost, ensure that the carrying out of the unimpeded of tubing string and follow-up perforation related work.
On the basis of above-described embodiment, as shown in Figure 1 to Figure 3, the sliding sleeve 2 that in perforation tubular column, impacting type circulating valve comprises cylindrical shell 1 and is located in cylindrical shell 1, the upper end of cylindrical shell 1 connects top connection 3, the lower end of cylindrical shell 1 connects lower contact 4, cylindrical shell 1 has the first internal diameter section 101 and the second internal diameter section 102, the internal diameter that the internal diameter of the first internal diameter section 101 is less than 102, first internal diameter section 101 and the second internal diameter section 102 linking part form step 104, second internal diameter section 102 is positioned at the side, lower end of cylindrical shell 1, the excircle of sliding sleeve 2 has annular boss 201, sliding sleeve 2 is divided into Part I 202 and Part II 203 by annular boss 201 in the axial direction, Part I 202 is connected with the first internal diameter section 101 slipper seal of cylindrical shell 1, annular boss 201 is connected with the second internal diameter section 102 slipper seal of cylindrical shell 1, lower contact 4 is connected with the lower end of cylindrical shell 1, and seal between lower contact 4 and cylindrical shell 1, the Part II 203 of sliding sleeve 2 stretches in lower contact 4, and the Part II 203 of sliding sleeve 2 is connected with slipper seal between lower contact 4, the Part I 202 of sliding sleeve 2 is arranged with shear sleeve 5, shear sleeve 5 is fixed by shear pin 6 and sliding sleeve 2, shear sleeve 5 is positioned at the second internal diameter section 102 of cylindrical shell 1 and is butted on step 104 place, sliding sleeve 2 has the radial pressure transmission hole 204 between the end passing to annular boss and lower contact 4, the striker 7 namely fractureed under certain vertical is provided with in radial pressure transmission hole 204, the root of striker 7 has axial blind hole 701, blind hole 701 protrudes from sliding sleeve 2 inwall, root and the radial pressure transmission hole 204 of striker 7 are tightly connected, the head of striker 7 is positioned at sliding sleeve 2 inside, the end of Part I 202 side of sliding sleeve 2 is provided with shutoff dish 8 namely broken under certain external force collision, cylindrical shell 1 has radial circulation port 103, the outer wall of sliding sleeve 2 has the draw-in groove of circumference, slotted collar 9 is provided with in draw-in groove, cylindrical shell 1 or lower contact 4 have the backing stop structure matched with slotted collar 9.
In the present embodiment, top connection 3 can be connected by screw thread with lower contact 4, and when adopting engagement thread to connect, lower contact 4 has external screw thread, and the lower end of cylindrical shell 1 has the internal thread with the external screw thread adaptation of lower contact 4; Top connection 3 and lower contact 4 also can be connected by the mode of engaging or other mode, and set according to concrete actual conditions for connected mode, the utility model is not construed as limiting this.In the impacting type circulating valve that the present embodiment provides, the external surface of outstanding shear sleeve 5 will be avoided in the end of shear pin 6, can by offering groove at the excircle of shear sleeve 5, this groove that shear pin 6 is located on the excircle of shear sleeve 5 is interior to avoid the external surface of outstanding shear sleeve 5; Or, by offering pin counterbore at the excircle of shear sleeve 5, thus shear pin 6 is located in this pin counterbore with the external surface avoiding the end of shear pin 6 to give prominence to shear sleeve 5, certainly for the measure avoiding the end of shear pin 6 to give prominence to the external surface of shear sleeve 5, the utility model is not restricted.
It should be noted that, the direction of blind hole 701 is that is, the axial direction of blind hole 701 is identical with the axial direction of striker 7, and the axial direction of this direction and sliding sleeve 2 is perpendicular relative to the direction of striker 7; Equally, the direction of pressure transmission hole 204 is also that the axial direction of pressure transmission hole 204 is identical with the axial direction of striker 7, and the axial direction of this direction and sliding sleeve 2 is perpendicular relative to the direction of striker 7.
Also it should be noted that, shear pin 6 is fixed on sliding sleeve 2, can select to be embedded in sliding sleeve 2 in sliding sleeve 2 upper shed to make shear pin 6, and also can adopt other mode that shear pin 6 is fixed on sliding sleeve 2, the utility model is not restricted this.Shear sleeve 5 is the circuluses with opening, the openings of sizes offered should match with the fineness of shear pin 6, to make in assembling process, the lower ending opening that sliding sleeve 2 enters cylindrical shell 1 upwards slides into certain distance, shear pin 6 on sliding sleeve 2 can snap in shear sleeve 5, if shear sleeve 5 too small openings, and shear pin 6 is excessively thick, and shear pin 6 can be made cannot to snap in shear sleeve 5.
In the present embodiment, when needs liquid-circulating, shear sleeve 5 stops sliding sleeve 2 shutoff circulation port 103, circulation port 103 conducting, now, the transfer canal opening part that top connection 3 connects can install booster pump, supercharging is carried out to the liquid in tubing string, fluid pressure in tubing string is greater than the fluid pressure outside tubing string, thus the impurity in tubing string of sweeping along under the effect of the pressure in tubing string is flowed out by radial circulation hole 103 liquid continuously, simultaneously due to the block of shutoff dish 8, these liquid can not flow into below tubing string, when needs circulation port is closed, the weight come from top connection 3 direction smashes shutoff dish 8, and continue whereabouts and sever striker 7, axial blind hole 701 in striker 7 and the conducting of radial pressure transmission hole 204, highly pressurised liquid enters below tubing string, from striker 7 by sever flow to annular boss 201 and lower contact 4 end between and act on annular boss 201 and lower contact 4, be applied to annular boss 201 active force upwards and be applied to the downward active force of lower contact 4 simultaneously, these two kinds of active forces all can make sliding sleeve 2 move upward, when active force arrives certain value, the shear pin 6 of fixed shear cover 5 is cut off, sliding sleeve 2 is about to circulation port 103 and closes, certain position to be risen to, slotted collar 9 and backing stop structure effect, sliding sleeve 2 is no longer up, also stop sliding sleeve 2 descending simultaneously.
The perforation tubular column that the utility model provides by offering the circulation that circulation port 103 realizes fluid on the cylindrical shell 1 of impacting type circulating valve, thus by the fluid expulsion with circulation such as the impurity in tubing string, can avoid impurity blocking tubing string.And impurity can be avoided to enter in the tubing string of below by the shutoff dish 8 that the upper end of the sliding sleeve 2 in cylindrical shell 1 inside of impacting type circulating valve is arranged, avoid resulting in blockage to the tubing string of below.After tubing string is unimpeded, by under the instrument (as depth correction instrument) that enters the shutoff dish 8 of impacting type circulating valve is smashed, and striker 7 is struck off, highly pressurised liquid in such well enters between the annular boss of sliding sleeve 2 and the end of lower contact 4 by the radial pressure transmission hole 204 at striker 7 place, thus upward pressure to sliding sleeve 2, after shear pin 6 is cut off, sliding sleeve 2 is up, circulation port is closed, so that tubing string carries out the operation of corresponding technique, thus to efficiently solve in the perforation tubular column of prior art tubing string blocking and cause instrument not enter smoothly, and need repeatedly to rise lower tubular column, cause and do over again, increase the problem of cost, ensure that the carrying out of the unimpeded of tubing string and follow-up perforation related work.
On the basis of above-described embodiment, as shown in Figure 2, in the perforation tubular column that the utility model provides, the striker 7 of impacting type circulating valve with reference to the structure of shear pin 6, and can offer blind hole 701, to make the conducting of radial pressure transmission hole 204 after striker 7 fractures.And the tangential force that striker 7 fractures can be designed, so that striker 7 can strike off by the instrument entered under passing through in the application according to actual conditions.In order to striker 7 can fracture smoothly in application process, the excircle of striker 7 has annular grooving 702, and annular grooving 702 offer position should ablepsia hole 701 length and determine, if annular grooving 702 offer too away from the outward flange of sliding sleeve 2, striker 7 can not realize the conducting with tubing string after this annular grooving 702 is severed, then highly pressurised liquid enters less than in blind hole 701 and then enter less than in pressure transmission hole 204, cause sliding sleeve 2 cannot be up, so in actual application, annular grooving 702 and the outer peripheral distance of sliding sleeve 2 should be less than the length of blind hole 701, after fractureing to make striker 7 blind hole 701 can with tubing string conducting, like this under shock striker 7 just annularly grooving 702 disconnect, the blind hole 701 of striker 7 becomes through hole, then with the radial pressure transmission hole 204 also conducting on sliding sleeve 2.Shutoff dish 8 in the utility model can design its external force be crashed to pieces as required.So that shutoff dish 8 can smash by the instrument entered under passing through in the application.Namely be crashed to pieces under certain external force collision as long as the material of shutoff dish 8 meets, but the hardness of material should not be excessive or too small, hardness is excessive, shutoff dish 8 can be made to be difficult to be crashed to pieces, and hardness is too small, and shutoff dish 8 can be made easily broken under the pressure effect of highly pressurised liquid, therefore, the intensity size of shutoff dish 8 should be moderate, and in actual applications, the material of shutoff dish 8 can be glass or pottery.
On the basis of above-described embodiment, top connection 3 and cylindrical shell 1 can be integral structures, or top connection 3 is threaded connection with cylindrical shell 1, and the utility model is not restricted this.When top connection 3 is threaded with cylindrical shell 1, the end stretching into the top connection 3 of cylindrical shell 1 inside can be continued up by the rear sliding sleeve 2 that stops in sliding sleeve 2 closed circulation hole 103.Certainly, also sliding sleeve 2 can be stoped afterwards to continue up in sliding sleeve 2 closed circulation hole 103 by arranging boss on cylindrical shell 1 inwall.
On the basis of above-described embodiment, lower contact 4 can also be fixed by holding screw 10 and cylindrical shell 1, to make lower contact 4 can be tightr with the connection of cylindrical shell 1.
On the basis of above-described embodiment, the end of Part I 202 side of sliding sleeve 2 should flush with or slightly higher than the lower edge of circulation port 103 with the lower edge of circulation port 103, and can not lower than circulation port 103 times edges, because, if the end of Part I 202 side of sliding sleeve 2 is lower than circulation port 103 times edges, can cause a part of Impurity deposition on shutoff dish 8, the end of Part I 202 side of sliding sleeve 2 is only had to flush with or slightly higher than the lower edge of circulation port 103, in iterative cycles washing well process, liquid in tubing string just can sweep along the impurity in tubing string to be flowed out by radial circulation hole 103 under the effect of the pressure constantly, and avoid stockpiling on shutoff dish 8.
On the basis of above-described embodiment, slotted collar 9 can be positioned at the Part II 203 of sliding sleeve 2, and backing stop structure is the end that lower contact 4 is positioned at cylindrical shell 1.When sliding sleeve 2 being about to after circulation port 103 closes, slotted collar 9 walks to the end of lower contact 4, and slotted collar 9 flicks and act on the end of lower contact 4, and sliding sleeve 2 is no longer up, and also prevention sliding sleeve 2 runs downwards simultaneously, realizes the shutoff to circulation port 103.The position of certain slotted collar 9 and corresponding backing stop structure and concrete structure are not limited to the present embodiment, and the utility model is not construed as limiting the position of slotted collar 9 and corresponding backing stop structure and concrete structure.As slotted collar 9 can be positioned at annular boss 201 place of sliding sleeve 2, accordingly, backing stop structure is be opened in the annular groove of cylindrical shell 1 second internal diameter section 102 (structure and position those skilled in the art of the position of the slotted collar 9 in the present embodiment and corresponding backing stop structure will be understood that, therefore identical constructional drawing is not provided), when sliding sleeve 2 being about to after circulation port 103 closes, slotted collar 9 walks to the annular groove place of cylindrical shell 1 second internal diameter section 102, slotted collar 9 flicks and acts on annular groove, realize the shutoff to circulation port 103, stop sliding sleeve 2 to slide in the axial direction simultaneously.Or slotted collar 9 can be positioned at the Part I 202 of sliding sleeve 2, accordingly, backing stop structure is the annular groove being opened in cylindrical shell 1 first internal diameter section 101, equally, when sliding sleeve 2 being about to after circulation port 103 closes, slotted collar 9 walks to the annular groove place of cylindrical shell 1 second internal diameter section 102, and slotted collar 9 flicks and acts on annular groove, realize the shutoff to circulation port 103, stop sliding sleeve 2 to slide in the axial direction simultaneously.
On the basis of above-described embodiment, as shown in Figure 3, the end of Part I 202 side of sliding sleeve 2 has counterbore, and shutoff dish 8 is located in counterbore, sliding sleeve 2 is arranged fastening devices and is fixed in counterbore by shutoff dish 8.This kind of structure is convenient to installation and the replacing of shutoff dish 8.Certainly, other suitable forms also can be adopted to be fixed in counterbore by shutoff dish 8, and wherein fastening devices can adopt hold-down nut, and hold-down nut is connected with the inner thread of the countersink region of sliding sleeve 2, thus is fixed in counterbore by shutoff dish 8.Fastening devices or can select fixing pin, multiple fixing pin is connected with sliding sleeve 2, thus is fixed in counterbore by shutoff dish 8.Fastening devices can also be baffle ring, places baffle ring above shutoff dish 8 in counterbore, baffle ring and sliding sleeve 2 is fixed with fixing pin.As shown in Figure 3, fastening devices adopts snap ring 9, and the inwall of counterbore has draw-in groove, and snap ring 9 is located in this draw-in groove, thus is fixed in counterbore by shutoff dish 8.
On the basis of above-described embodiment, sealing ring 11 can be provided with between shutoff dish 8 and sliding sleeve 2, thus achieve the good shutoff between shutoff dish 8 and sliding sleeve 2.
On the basis of above-described embodiment, in the perforation tubular column that the utility model provides impacting type circulating valve each parts between sealing can by O shape circle realize.In the present embodiment, the Part I 202 of sliding sleeve 2 is at least provided with two groups of O shape circles, often organizing O shape circle can be single O shape circle, also can be the combination of two or more O shape circle.Have certain distance between this two groups of O shapes circle, to be about to circulation port 103 when closing on sliding sleeve 2, circulation port between two groups of O shapes circles, thus realizes closing the good of circulation port 103.As shown in Figure 1, when the end of lower contact 4 arranges backing stop structure, accordingly, slotted collar 9 is positioned on the Part II 203 of sliding sleeve 2, O shape for sealing between sliding sleeve 2 and lower contact 4 is enclosed for the end of slotted collar 9 closer to sliding sleeve 2 Part II 203 side, and namely slotted collar 9 is positioned at the inner side of this O shape circle.When slotted collar 9 acts on the end of lower contact 4, this O shape circle still seals between sliding sleeve 2 and lower contact 4.O shape for sealing between sliding sleeve 2 and miscellaneous part is enclosed and is all arranged on sliding sleeve 2, namely on the cylindrical of sliding sleeve 2, offers seal groove, and O shape circle is arranged in seal groove.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (10)
1. a perforation tubular column, comprise: the dark pipe nipple in school be located at the perforating gun of described perforation tubular column lower end, the pressure drilling priming device be connected with described perforating gun upper end and be positioned at above described pressure drilling priming device, it is characterized in that, between the dark pipe nipple of described pressure drilling priming device and described school, be also provided with impacting type circulating valve;
Described impacting type circulating valve comprises cylindrical shell and is located at the sliding sleeve in cylindrical shell, the upper end of described cylindrical shell connects top connection, the lower end of described cylindrical shell connects lower contact, described cylindrical shell has the first internal diameter section and the second internal diameter section, the internal diameter of described first internal diameter section is less than the internal diameter of described second internal diameter 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 cylindrical shell, the excircle of described sliding sleeve has annular boss, described sliding over axially is divided into Part I and Part II by described annular boss, described Part I is connected with the first internal diameter section slipper seal of described cylindrical shell, described annular boss is connected with the second internal diameter section slipper seal of described cylindrical shell, described lower contact is connected with the lower end of described cylindrical shell, and seal between described lower contact and described cylindrical shell, the Part II of described sliding sleeve stretches in lower contact, and the Part II of sliding sleeve is connected with slipper seal between lower contact, the Part I of described sliding sleeve is arranged with shear sleeve, described shear sleeve is fixed by shear pin and sliding sleeve, described shear sleeve is positioned at the second internal diameter section of cylindrical shell and is butted on step place, described sliding sleeve has the radial pressure transmission hole passed between annular boss and the end of lower contact, the striker namely fractureed under certain vertical is provided with in described radial pressure transmission hole, the root of described striker has axial blind hole, described blind hole protrudes from described sliding sleeve inwall, root and the described radial pressure transmission hole of described striker are tightly connected, the head of described striker is positioned at sliding sleeve inside, the end of the Part I side of described sliding sleeve is provided with shutoff dish namely broken under certain external force collision, described cylindrical shell has radial circulation port, the outer wall of described sliding sleeve has the draw-in groove of circumference, slotted collar is provided with in described draw-in groove, described cylindrical shell or lower contact have the backing stop structure matched with slotted collar.
2. perforation tubular column according to claim 1, is characterized in that, described slotted collar is positioned at the Part II of sliding sleeve, and described backing stop structure is the end that lower contact is positioned at cylindrical shell.
3. perforation tubular column according to claim 1, is characterized in that, described slotted collar is positioned at the annular boss place of described sliding sleeve, and described backing stop structure is the annular groove being opened in cylindrical shell second internal diameter section.
4. perforation tubular column according to claim 1, is characterized in that, described slotted collar is positioned at the Part I of described sliding sleeve, and described backing stop structure is the annular groove being opened in cylindrical shell first internal diameter section.
5. perforation tubular column according to claim 1, is characterized in that, the end of the Part I side of described sliding sleeve has counterbore, and described shutoff dish is located in described counterbore, described sliding sleeve is arranged fastening devices and is fixed in described counterbore by described shutoff dish.
6. perforation tubular column according to claim 5, is characterized in that, described fastening devices is the hold-down nut that the inner thread of countersink region connects.
7. perforation tubular column according to claim 5, is characterized in that, described fastening devices is the fixing pin be connected with sliding sleeve.
8. perforation tubular column according to claim 1, is characterized in that, described shutoff dish is that glass or pottery are made.
9. perforation tubular column according to claim 1, is characterized in that, described top connection and described cylindrical shell integral structure or described top connection and described cylindrical shell are threaded connection.
10. perforation tubular column according to claim 1, is characterized in that, described lower contact is also fixed by holding screw and described cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520299635.6U CN204703870U (en) | 2015-05-11 | 2015-05-11 | Perforation tubular column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520299635.6U CN204703870U (en) | 2015-05-11 | 2015-05-11 | Perforation tubular column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204703870U true CN204703870U (en) | 2015-10-14 |
Family
ID=54283493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520299635.6U Expired - Fee Related CN204703870U (en) | 2015-05-11 | 2015-05-11 | Perforation tubular column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204703870U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285575A (en) * | 2015-05-11 | 2017-01-04 | 中国石油天然气股份有限公司 | Perforation tubular column |
| 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 |
-
2015
- 2015-05-11 CN CN201520299635.6U patent/CN204703870U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285575A (en) * | 2015-05-11 | 2017-01-04 | 中国石油天然气股份有限公司 | Perforation tubular column |
| CN106285575B (en) * | 2015-05-11 | 2019-02-15 | 中国石油天然气股份有限公司 | Perforation tubular column |
| 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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