CN2464937Y - Perforating gun without gun body - Google Patents
Perforating gun without gun body Download PDFInfo
- Publication number
- CN2464937Y CN2464937Y CN 01212966 CN01212966U CN2464937Y CN 2464937 Y CN2464937 Y CN 2464937Y CN 01212966 CN01212966 CN 01212966 CN 01212966 U CN01212966 U CN 01212966U CN 2464937 Y CN2464937 Y CN 2464937Y
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- assembly
- telescoping ram
- perforating
- utility
- crossover sub
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Abstract
The utility model provides a perforating gun without a gun body, and belongs to the field of petroleum development. The utility model is composed of a switching joint assembly, an upper pusher assembly, an upper joint assembly, a bullet rack assembly, a lower pusher assembly and an explosion transmission system assembly; the whole gun body is of a cylindrical structure, and the outside diameter of the utility model is equal or less than 70 mm. The utility model is characterized in that in a magnetic suction pushing way, the perforating gun is tightly attached to the walls of oil wells to ensure that perforating bullets have zero clearance with the walls of oil wells and the perforating bullets are in the same direction with perforation, and magnets can be replaced at any moment; work forms, such as, upper end detonation and lower end detonation can be selected to detonate a plurality of perforating bullets circularly arranged on a bullet rack. The utility model has the advantages of simple structure, convenient installation, and high operation efficiency, and the utility model is especially suitable for the perforating operation of oil passing pipes.
Description
The utility model belongs to the oil development field, is meant a kind of device that is used for the oil well downhole perforation especially.
In the oil field development manufacturing process, need carry out perforating job to cased oil well, people just can adopt oil.Perforator is exactly a kind ofly to send into perforating bullet after the predetermined level of down-hole and ignite a kind of device that perforating bullet is finished perforating job.That uses in the oil field at present mostly is shaped charge with gun body, is about to a plurality of perforating bullets and is installed on the tubulose firing mount, and in fuzing system, armament is encapsulated in the cylindrical body of a gun that has a plurality of shell holes that metal material makes, sends into the down-hole and carry out perforating job.This kind perforator complex structure, volume is big, and sealing performance is relatively poor, and perforating bullet is installed inconvenience, and body of a gun loss is big, the expense height.Development along with technology, a kind of body-free perforator is used in domestic oil field on a small quantity, but restriction because of its structure and technological level, its technical level still is stuck in the level before the eighties, and withstand voltage index is lower than 40Mpa, and it is low to wear dark index, only be 150 millimeters (ground concrete experimental test targets), 5～6 millimeters of aperture Φ, and big to casing damage during perforation are unfavorable for the long-term stable yields and the high yield of oil well.
The purpose of this utility model is to provide that a kind of external diameter is little, simple in structure, quick and easy for installation, favorable sealing property, withstand voltage height, wear dark big, be close to borehole wall perforation, optional with the upper end detonate and the lower end detonate dual mode, be specially adapted to the body-free perforator of perforation through tubing operation.
The utility model is realized as follows.
A kind of body-free perforator, integral body is cylindrical, it is made of crossover sub assembly, last telescoping ram assembly, top connection assembly, firing mount assembly, following telescoping ram assembly and detonation train assembly, and body-free perforator is connected with the perforation instrument by the crossover sub at its top.The metal connection bar is installed in the centre bore of crossover sub, its plastic insulation covering by being enclosed within its outer surface and two felt pads that are installed in the crossover sub upper and lower side insulate with crossover sub, one end of junction pole joins with metal joint and communicates with the perforation order line of perforation instrument, the other end joins with the plug that is contained in the felt pad, and links together by plug contact pin and high pressure line.Last telescoping ram assembly passes through the lower end of the female connection of its top inner chamber at the crossover sub assembly.The half-cylindrical side of facial planes concave station in last telescoping ram, a plurality of replacings at any time and the pole orientation magnet vertical with the concave station plane is installed, adopt magnetic to close mode, can make perforator after by oil pipe, be close to the borehole wall, guarantee that the perforating bullet and the borehole wall are in the zero clearance, its direction is consistent with the perforation direction.Last telescoping ram assembly links together by the joint and the top connection assembly of the band pin thread of its bottom, and firing mount assembly and following telescoping ram assembly are installed successively in the lower end of top connection assembly.Electromagnetic detonators is installed on the platform of top connection, and by the jackscrew on the fixed bin electromagnetic detonators is held out against, and its metal shell and metal top connection are connected as a single entity.
The high pressure line of two ends band jack, the through wires hole of one end by facial planes concave station both sides in the last telescoping ram is plugged in the plug contact pin on the crossover sub assembly, and the through wires hole of the other end by end joint center under the last telescoping ram enters the line hole of top connection and be plugged into the initiation ends of electromagnetic detonators.One end and the electromagnetic detonators of detonating fuse link together, and its terminal detonating fuse end socket card envelope of using is being connected in series the perforating bullet of a plurality of spinnings on flat metal firing mount on the detonating fuse.The fuze of perforation instrument is ignited electromagnetic detonators and is ignited detonating fuse by metal joint, junction pole, plug, high pressure line, and then ignites perforating bullet.
For guaranteeing to be close to the borehole wall after the perforation instrument is by oil pipe, the magnet of varying number all is installed on top connection and following telescoping ram, they are in identical cylindrical sides with magnet on the last telescoping ram, and pole orientation is identical.
For satisfying the perforation requirement of detonating the lower end, electromagnetic detonators can be installed in down on the platform of telescoping ram.
The entire outer diameter of body-free perforator≤70 millimeter.
The utility model has following advantage.
The utility model entire outer diameter is little, and simple in structure, easy for installation, good seal performance, heatproof are 121 ℃/48h, and withstand voltage 105Mpa wears deeply 〉=320 millimeters; Telescoping ram adopts magnetic to close mode, can be close to the borehole wall after making perforator cross oil pipe, guarantees that the perforating bullet and the borehole wall are in the zero clearance, and its direction is consistent with the perforation direction, and magnet can be changed at any time; Firing mount can extend as required, to increase the quantity that perforating bullet is installed, improves operating efficiency.Can adopt the upper end to detonate and the lower end two kinds of working methods of detonating, be specially adapted to the perforation through tubing operation.
The drawing explanation.
Fig. 1 is the utility model general structure schematic diagram.
Fig. 2 is a crossover sub assembly structure schematic diagram of the present utility model.
Fig. 3 is the telescoping ram assembly structure schematic diagram of going up of the present utility model.
Fig. 4 is a top connection assembly structure schematic diagram of the present utility model.
Fig. 5 is a telescoping ram assembly structure schematic diagram down of the present utility model.
Fig. 6 is a detonation train assembly schematic diagram of the present utility model.
Below in conjunction with accompanying drawing, comment the utility model embodiment.
With reference to Fig. 1, Fig. 2, the utility model by crossover sub assembly 1, go up telescoping ram assembly 2, top connection assembly 3, firing mount assembly 4, telescoping ram assembly 5 and detonation train assembly are formed down, integral body is cylindrical, its external diameter≤70 millimeter.Wherein the crossover sub assembly is to be made of crossover sub 8, metal joint 6, metal connection bar 7, plug 9, O type rubber seal 24, plastic insulation covering 25 and upper and lower two plastic insulation pads 26,27 that metal material is made, at the center of crossover sub 8 through hole is arranged, junction pole 7 penetrates in the centre bore and by plastic insulation covering 25 that is enclosed within its external surface and two felt pads 26,27 that are installed on the upper and lower top of crossover sub and crossover sub 8 and insulate.The upper end of junction pole 7 is threaded with metal joint 6, and its lower end links to each other with the metallic plug 9 that inserts felt pad 27 centre bores.Two ends at crossover sub 8 all are processed with the pin thread that is connected with other members, and have annular groove at least one in the outside of pin thread, are used to install O RunddichtringO 24.The utility model links together by the pin thread and the perforation tool housing of crossover sub 8 upper ends, and by 24 sealings of O RunddichtringO, favorable sealing property in high temperature and high pressure environment.The order line of perforation instrument penetrates in the blind hole on metal joint 6 tops and compresses the back with special bolt and is connected as a single entity with junction pole 7.The lower end of crossover sub 8 is connecting successively goes up telescoping ram assembly 2, top connection assembly 3, firing mount assembly 4 and following telescoping ram assembly 5.
With reference to Fig. 3, Fig. 1, the last telescoping ram 10 that last telescoping ram assembly 2 is mainly made by the cylindrical metal material, fixed screw 12, magnet 13, plastic cord stopple 28 etc. constitute.The upper end of last telescoping ram 10 is processed with and corresponding spigot and the gas-tight silo 31 with negative thread in the lower end of crossover sub 8, one plane concave station is arranged in the middle, half-cylindrical side at concave station, be processed with at least one blind hole from top to bottom successively, magnet 13 and fixing with fixed screw 12 is installed in the blind hole, can change at any time, the direction of magnetic pole must be perpendicular to the concave station plane.After perforator arrives predetermined perforation oil reservoir by oil pipe, by the adhesive of 13 pairs of metal sleeves of magnet, make whole perforator be close to the borehole wall, guarantee that the perforating bullet 21 and the borehole wall are in the zero clearance, its direction is consistent with the perforation direction.The bottom of last telescoping ram is the male joint 14 of band pin thread, and its center has through wires hole 29 to communicate with concave station plane and sealing logical sequence 31, and high pressure line 11 therefrom passes back line stopple 28 sealings.
With reference to Fig. 4, Fig. 1, the top connection 15 that top connection assembly 3 is mainly made by the cylindrical metal material, magnet 13, formations such as fixed screw 12, jackscrew 34, cover plate 39, detonating fuse pressing plate 41 and clamping sleeve 42.The upper end of top connection 15 is the female joint with the lower end male joint 14 corresponding band negative threads of last telescoping ram 10, the line hole 33 at its center and cavity 37, electromagnetic detonators fixedly logical sequence 35 communicate, on the cylindrical sides relative, be processed with a blind hole from top to bottom at least with line hole 33, be used to install magnet 13, magnet 13 usefulness fixed screws 12 are fixing and can change at any time, and pole orientation is identical with pole orientation on the last telescoping ram.The Lower Half of top connection 15 is half cylindrical bar 36, in the initiation ends of electromagnetic detonators 16 stretches into fixedly logical sequence 35 along platform 36, and it is compressed with jackscrew 34, the metallic object of its metal shell and top connection 15 is connected as a single entity, use steel wire that electromagnetic detonators 16 and top connection 15 are banded together simultaneously, steel wire is limited in the holddown groove 38, comes off in case slide.Cylindrical sides at top connection 15 ends is processed with a platform that parallels with platform 36, uses bolt 40 firing mount assembly 4 to be connected the lower end of top connection assembly 3.
With reference to the flat firing mount 18 that Fig. 1, firing mount assembly 4 are mainly made by metal material, junction plate 19, eyelet bolt 20, perforating bullet 21 constitute.On firing mount 18, evenly be processed with a plurality of installing holes, be used to install the body-free perforating bullet 21 that machines separately.Also can use junction plate 19 and screw that a plurality of firing mounts 18 are coupled together as required, to increase the quantity that perforating bullet 21 is installed.The lower end of firing mount assembly 4 connects telescoping ram assembly 5 down.
With reference to Fig. 5, Fig. 1, the following telescoping ram 23 that following telescoping ram assembly 5 is mainly made by the cylindrical metal material, magnet 13, hold-down screw 12, cover plate 39, detonating fuse pressing plate 41, clamping sleeve 42, jackscrew 34 etc. are formed, and it is installed in body-free perforator bottom.In the following Lower Half of telescoping ram 23, with the last telescoping ram 10 same cylindrical sides that magnet 13 is installed a plurality of magnets 13 are installed also, and fix and can change at any time with screw 12, its effect is same as above.For satisfying the perforation requirement of detonating the lower end, be processed with at the first half of telescoping ram 23 down and can install and the fixing logical sequence 35 of the half-cylindrical platform 36 of Motionless electromagnetic detonator 16 and the electromagnetic detonators that is communicated with it, line hole 33, and with hollow jackscrew 43 line hole 33 is sealed.
With reference to Fig. 1～Fig. 6, the utility model can adopt the upper end to detonate (shown in Fig. 6 (a)) and lower end (shown in Fig. 6 (the b)) dual mode that detonates, and only is illustrated with regard to the upper end detonation mode at this.The detonation train assembly is made of high pressure line 11, electromagnetic detonators 16, detonating fuse 17, detonating fuse end socket 22, high pressure adhesive tape 44.The high pressure line 11 of two ends band jack, the one end is by the through wires hole 29 of concave station both sides, last telescoping ram 10 plane, be plugged on the contact pin of plug 9 after entering sealing logical sequence 31, after plastic cord stopple 28 seals through wires hole 29, in sealing logical sequence 31, fill with silica gel by annotating silica gel hole 30, in case in high temperature and high pressure environment, produce high pressure electric leakage and short circuit.The other end of high pressure line 11 is by the male joint 14 of through wires hole 29 and last telescoping ram 10 lower ends, the ignition end that line hole 33 is plugged into electromagnetic detonators 16.Also fill with silica gel by annotating in the cavity 37 between silica gel hole 30 online stopples 28 and the electromagnetic detonators 16 equally.To the part high pressure line 11 at concave station place, last telescoping ram 10 plane, protected with the upper cover plate 32 that can be fixed on the concave station plane.One end of detonating fuse 17 inserts the initiation ends of electromagnetic detonators 16, and with the 44 reinforcing sealings of high pressure adhesive tape, for preventing to come off, on the platform 36 of top connection 15 lower ends, the cover plate 39 that is used for fixing detonating fuse 17 also is installed, Ω type detonating fuse pressing plate 41 and rubber clamping sleeve 42.The end of detonating fuse 17 seals with end socket 22 cards, and by cover plate 39, Ω type detonating fuse pressing plate 41 and clamping sleeve 42 are fixed on down on the platform 36 of telescoping ram 23 upper ends.Detonating fuse 17 is put into the detonating fuse groove at perforating bullet 21 tops one by one, and is fixed with the bullet card.
The perforation instruction of perforation instrument is to ignite electromagnetic detonators 16 by metal joint 6, metal connection bar 7, plug 9, high pressure line 11, and ignites detonating fuse 17 thus, thereby ignites perforating bullet 21.Detonating enters oil reservoir after back perforating bullet 21 formed high pressure energy-gathering jettings penetrate casing wall, and forms the oil outlet of certain depth, and oil is just therefrom gushed out.
When adopting the lower end detonation mode, the connection of detonation train is shown in Fig. 6 (b), and connection and fixed form duplicate with above-mentioned, be electromagnetic detonators 16 be to be fixed on down on the platform 36 of telescoping ram 23 upper ends.
In addition, only need as required textural association of the present utility model is changed slightly, can carry out the leggy perforating job.
Claims (5)
1. body-free perforator, integral body is cylindrical, it is made up of crossover sub assembly (1), last telescoping ram assembly (2), top connection assembly (3), firing mount assembly (4), following telescoping ram assembly (5) and detonation train assembly, the upper and lower side that it is characterized in that the crossover sub (8) made by the cylindrical metal material all is processed with pin thread, have annular groove at least one in the outside of pin thread, be used to install the O RunddichtringO; Metal connection bar (7) penetrates in the centre bore of crossover sub (8) and by the plastic insulation covering (25) that is enclosed within its external surface and two felt pads (26) that are installed on the upper and lower top of crossover sub (8), (27) and insulate with crossover sub (8), one end of junction pole (7) is threaded with metal joint (6), and the other end joins with high pressure line (11) by the plug (9) that is installed in crossover sub (8) the lower end felt pad (27); Last telescoping ram (10) is connected with crossover sub (8) by the negative thread of its top spigot, the half-cylindrical side of plane concave station is processed with at least one blind hole in the middle, magnet (13) is installed in it, pole orientation and concave station plane are perpendicular, magnet (13) can be arbitrary shape and can change at any time, utilizes magnetic force adhesive backup mode, makes perforator be close to the borehole wall, perforating bullet (21) keeps the zero clearance with the borehole wall, and consistent with the perforation direction; One end of the high pressure line (11) of two ends band jack is plugged into the contact pin of the plug (9) that is positioned at adapter (8) lower end by last telescoping ram (10) center and through wires hole (29) that communicate with the plane concave station, the other end reaches the male joint (14) of going up telescoping ram (10) by through wires hole (29) and inserts the ignition end that is installed in the electromagnetic detonators (16) in the top connection (15), the initiation ends of one end of detonating fuse (17) and electromagnetic detonators (16) is joined and is reinforced sealing with high pressure belt (44), its terminal detonating fuse end socket (22) card envelope of using, and be fixed on down on the telescoping ram (23), detonating fuse (17) is being connected in series a plurality of perforating bullets (21), on the flat firing mount (18) that the metal material that perforating bullet (21) spinning links together at two ends and top connection (15) and following telescoping ram (23) is made, the perforation instruction that the perforation instrument sends is by metal joint (16), metal connection bar (7), plug (9), high pressure line (11), electromagnetic detonators (16), detonating fuse (17) and ignite perforating bullet (21).
2. body-free perforator according to claim 1, it is characterized in that on top connection (15) and following telescoping ram (23), all being equipped with at least one magnet that can change at any time (13), they are in identical cylindrical sides with magnet (13) on being positioned at telescoping ram (10), and pole orientation is identical.
3. body-free perforator according to claim 1, the ignition end that it is characterized in that electromagnetic detonators (16) stretch into fixedly in the logical sequence (35), and hold out against with jackscrew (34), and the metal shell of electromagnetic detonators (16) and metal top connection (15) are connected as a single entity.
4. body-free perforator according to claim 1 is characterized in that optionally detonating and the lower end two kinds of working methods of detonating with the upper end, and when detonate in the lower end, electromagnetic detonators (16) is installed in down on the platform (36) on the telescoping ram (23).
5. according to the described body-free perforator of claim 1, it is characterized in that whole for cylindrical, its external diameter≤70 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01212966 CN2464937Y (en) | 2001-01-21 | 2001-01-21 | Perforating gun without gun body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01212966 CN2464937Y (en) | 2001-01-21 | 2001-01-21 | Perforating gun without gun body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2464937Y true CN2464937Y (en) | 2001-12-12 |
Family
ID=33632048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01212966 Expired - Fee Related CN2464937Y (en) | 2001-01-21 | 2001-01-21 | Perforating gun without gun body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2464937Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007031001A1 (en) * | 2005-09-15 | 2007-03-22 | Xi'an Tongyuan Petrotech Co., Ltd. | Compound perforator without body |
| CN106223944A (en) * | 2016-08-27 | 2016-12-14 | 中国石油集团渤海钻探工程有限公司 | Modular coring rifle |
| CN111764873A (en) * | 2020-06-24 | 2020-10-13 | 西安物华巨能爆破器材有限责任公司 | Cable transport oil pipe perforation is with no body of a gun unit rifle |
-
2001
- 2001-01-21 CN CN 01212966 patent/CN2464937Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007031001A1 (en) * | 2005-09-15 | 2007-03-22 | Xi'an Tongyuan Petrotech Co., Ltd. | Compound perforator without body |
| CN106223944A (en) * | 2016-08-27 | 2016-12-14 | 中国石油集团渤海钻探工程有限公司 | Modular coring rifle |
| CN106223944B (en) * | 2016-08-27 | 2019-07-09 | 中国石油集团渤海钻探工程有限公司 | Modular coring rifle |
| CN111764873A (en) * | 2020-06-24 | 2020-10-13 | 西安物华巨能爆破器材有限责任公司 | Cable transport oil pipe perforation is with no body of a gun unit rifle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |