CN2653125Y - Composite perforating device of gun inner loading tubular gunpowder for oil-gas well - Google Patents
Composite perforating device of gun inner loading tubular gunpowder for oil-gas well Download PDFInfo
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- CN2653125Y CN2653125Y CN 200320109751 CN200320109751U CN2653125Y CN 2653125 Y CN2653125 Y CN 2653125Y CN 200320109751 CN200320109751 CN 200320109751 CN 200320109751 U CN200320109751 U CN 200320109751U CN 2653125 Y CN2653125 Y CN 2653125Y
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- gun
- perforating
- bullet
- firing mount
- powder charge
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Abstract
The utility model relates to a compound perforation device for cylinder type gunpowder charging in the gun, which is used in oil and gas well application, comprising one piece or multiple of perforation devices connected together. The perforation device is consisted of a perforation gun, a coaxially installed cylinder bullet rack, a bullet on the rack, a primacord connected to the end of the bullet, a radial positioning structure of the cylinder bullet rack at the two ends of the gun barrel and an upper and lower connector. The innovated structure is the cylinder gunpowder charging device between the perforation gun and the cylinder bullet rack. The utility model solves the problem of small charging of gunpowder of the perforation device under the concentrated structure, and the charging volume in this method of the apparatus is two times larger than that charged by interval charging of prior art.
Description
Technical field
The utility model relates to a kind of perforating system that oil gas well, the new well completion of water injection well and producing well perforations adding are transformed that is used for, and specifically, it is the composite gun perforation device of a kind of oil gas well with fitted tube formula powder charge in the rifle.
Background technology
At present, be used for perforating oil gas well and prolong the composite perforator of seam or pressure break, for after perforating bullet detonates perforation, gunpowder or propellant carry out secondary fracturing and prolong seam in the rifle of lighting by taking advantage of a situation again, adopt the structure of loading gunpowder or propellant in the firing mount between the perforating bullet mostly.For example: Chinese patent ZL97242235.8 " the close dual-jet aperture apparatus in the high hole of the compound malleation of oil gas well high-energy ", it adopts is the charging means that a cylinder grain that matches with tubular firing mount internal diameter is installed in the tubular firing mount, and the result of powder charge equals all to have filled between the perforating bullet gunpowder in firing mount.Also have Chinese patent ZL01212979.8 " oil gas well high-energy composite gun perforation device ", adopt in firing mount the charging means of primer between perforating bullet.Above-mentioned two kinds of powder charge modes all can reduce explosive payload greatly along with the close increase in perforation hole, if carry out high hole dense perforation, almost there is not any space between bullet, so, its powder charge amount can reduce greatly, thereby influences the effect that secondary combustion gas energy impact loads.
The utility model content
The purpose of this utility model is the deficiency at prior art, at first provide the composite gun perforation device of a kind of oil gas well with fitted tube formula powder charge in the rifle, make it can under the structure of perforating bullet dense arrangement, still have bigger explosive payload, thereby guarantee the impact effect of secondary combustion gas energy, next is that this device is carried out structural further improvement, makes its structure more reasonable.
For achieving the above object, solution of the present utility model is as follows:
It is connected and composed by a joint perforator or more piece perforator, described perforator has a perforating gun, in this perforating gun, be provided with the tubular firing mount, and a plurality of perforating bullets of axial dense arrangement are housed on this tubular firing mount, described perforating bullet according to its jet direction towards the perforating gun inwall and the direction of projectile tail in the tubular firing mount installed, and circumferential multi-faceted arrangement along the tubular firing mount, the jet position that is right against each perforating bullet on the barrel of described perforating gun is provided with step through-hole, and on step through-hole, be provided with blanking cover, described tubular firing mount is by establishing thereon, the circumferential location structure at following two ends is fixed in the gun barrel, make and obtain between tubular firing mount and the perforating gun circumferentially fixing, on perforating gun, following two ends are associated with the rifle head or go up coupling head and gun breech or second line of a couplet joint by helicitic texture, thereby make the tubular firing mount in perforating gun, obtain axial restraint, in perforating gun, also axially run through a detonating fuse with each perforating bullet projectile tail crimping, structure is built in its pass: coaxial between described perforating gun and tubular firing mount a cartridge type powder charge is housed, on the barrel of this cartridge type powder charge, position corresponding to each perforating bullet jet on the perforating gun has the through hole that jet passes through.
The further improvement of the utility model scheme is as follows:
A plurality of perforating bullets on the above-mentioned tubular firing mount are along 30 °～90 ° uniformly-spaced spiral axial dense arrangement of barrel dextrorotation.
Be with the bullet cover on the above-mentioned perforating bullet.
Be provided with the blind hole coaxial with each perforating bullet jet direction on the barrel of above-mentioned perforating gun, the 180 ° of correspondences in the back side of each blind hole are provided with step through-hole, and are provided with blanking cover on step through-hole.
Above-mentioned cartridge type powder charge adopts single base or double-base propellant or composite propellant or the making of burning class energetic material.
By above-mentioned solution as can be seen, this device has utilized the space between perforating gun and the tubular firing mount to carry out powder charge, the size in this space is subjected to the influence of perforating bullet dense arrangement less, and the powder charge amount of high shot density perforator is improved, thereby guarantees the impact effect of secondary combustion gas energy.Moreover the bullet cover that this device adds on perforating bullet both had fixing effect to perforating bullet, disturbed between the bullet in the time of also can reducing the perforating bullet perforation simultaneously.This device adopts jet to penetrate on perforating gun and wears in the blind hole pressure release when pressure release area is not enough, also can further increase the pressure release speed of rifle internal pressure by the step through-hole of washing the blind hole back side open.
Description of drawings
Fig. 1, overall structure schematic diagram of the present utility model.
One of Fig. 2, perforator structural representation.
Two of Fig. 3, perforator structural representation.
Fig. 4, tubular powder charge structural representation.
The specific embodiment
Describe structure of the present utility model and operating principle thereof in detail according to embodiment below.
Referring to Fig. 1, this device can be connected and composed by a joint perforator 2 or more piece perforator 2.If adopt a joint perforator, then the upper/lower terminal of perforator 2 connects rifle head 1 and gun breech 5 by helicitic texture, and the detonator 1.1 that is connected with ground power supply by lead is housed in rifle head 1, and gun breech is the outside tail end plug of truncated cone-shaped that is.If the employing multi-section structure then can link together with the last coupling head 4 of band box thread and the second line of a couplet joint 3 of band male thread between two perforators.
Referring to Fig. 2,4, described perforator 2 has a perforating gun 10, in this perforating gun 10, be provided with described tubular firing mount 9, the external diameter of this tubular firing mount and the loose fit of perforating gun internal diameter, and between perforating gun 10 and tubular firing mount 9, be provided with described cartridge type powder charge 8, a plurality of perforating bullets 12 are housed on tubular firing mount 9, described perforating bullet 12 according to its jet direction towards the inwall of gun barrel 10 and the direction of projectile tail in firing mount installed, and axial solid matter and radially multi-faceted arrangement along tubular firing mount 9, making the perforation resilience energy is middle mind-set perforation all around with gun barrel, the perforating bullet arrangement mode that this example adopts is the 90 ° of uniformly-spaced spiral axial dense arrangement of barrel dextrorotation along tubular firing mount 9, like this, the perforating bullet in the rifle can gun barrel be middle mind-set four direction perforation; The angle that its dextrorotation is uniformly-spaced arranged can be selected between 30 °～90 °, thereby realizes with the gun barrel being the multi-faceted perforation at center.In order to reduce the interference between bullet, on described perforating bullet 12, be provided with bullet cover 11, this bullet cover 11 connects firmly with the tubular firing mount, thereby forms the installation bullet cave of perforating bullet on the tubular firing mount, can be to the perforation centralizing function of upspringing.Jet position corresponding to perforating bullet on perforating gun 10 is provided with described step through-hole 14, and blanking cover 13 is housed on this through hole.Also be provided with corresponding through hole 19 on the described cartridge type powder charge 8, the concrete structure of this tubular firing mount 9 is seen Fig. 4.The two ends of described cartridge type powder charge 8 and tubular firing mount 9 and last locating ring 5, down locating ring 16 is affixed.The circumferential location structure of described tubular firing mount 9 and cartridge type powder charge 8 is made of the groove 6 that is located at the sliding card 18 in location, dog screw 17 and perforating gun 10 two ends in locating ring 5 and following locating ring 16 chutes.When sliding card 18 radially slides and when entering detent 6 along gun barrel, tighten dog screw 17, can make locating ring 5 and following locating ring 16 obtain circumferentially fixing and can not rotating in a circumferential direction by relative gun barrel, it is circumferentially fixing that the cartridge type powder charge 8 that is connected locating ring on this 5 and following locating ring 16 and tubular firing mount 9 are also obtained, thereby make the through hole 19 on the tubular gunpowder 8 aim at the location with the jet exit that is contained in the perforating bullet 12 on the tubular firing mount with the step through-hole 14 on the gun barrel.Described upward coupling head 4 and second line of a couplet joint 3 are connected the two ends of perforating gun 10 by helicitic texture, thereby make the perforating gun closed at both ends and make cartridge type powder charge 8 and tubular firing mount 9 obtain axial restraint in gun barrel.The described detonating fuse 7 upper and lower perforating guns 10 that run through, and with the tail end crimping of each perforating bullet.When detonating fuse was lighted perforating bullet, the step through-hole 14 that the jet that perforating bullet forms will seal was earlier penetrated and is worn, and then penetrates sleeve pipe and the cement sheath of wearing the oil gas well, thereby formed the perforation tunnel of certain physical dimension in payzone; Simultaneously, cartridge type powder charge 8 is also ignited after perforating bullet detonates, thereby form the high-energy fuel gas pulse loading is impacted in the rock stratum, makes the perforation tunnel obtain extending and expansion with crack form.
Referring to Fig. 4, described cartridge type powder charge 8 can adopt single base or double-base propellant or composite propellant or the making of burning class energetic material.As can be seen from the figure, the explosive payload of this cartridge type powder charge structure is subjected to the influence of Gao Kongmi not too big, because the space between gun barrel and the tubular firing mount is bigger than space between the bullet of Gao Kongmi, what and size of set through hole can influence explosive payload on the barrel, but because of through hole more much smaller than the diameter of perforating bullet, so influence degree is less.Through actual measuring and calculating, under with the close structure in contour hole, more than the big twice of explosive payload of this device than the cylindricality of powder charge between existing bullet or chip solid gunpowder.
Referring to Fig. 3, if bigger in explosive payload, and when the pressure release area of jet orifice was not enough on the perforating gun, described perforating gun could adopt blind hole to add the step through-hole structure, to increase pressure release area.Promptly on perforating gun 20, blind hole 21 is set, and step through-hole 14 is set, and on step through-hole 14, blanking cover 13 is set in the 180 ° of correspondences in the back side of each blind hole 21 with the coaxial position of each perforating bullet jet direction.Lighted and during perforation, its jet is penetrated earlier and worn blind hole 21 when perforating bullet 12, when cartridge type powder charge 8 was ignited, the impact of big high-energy fuel gas was washed the blanking cover of step through-hole open again then, thereby played the effect that increases pressure release speed.Identical among other structure of this perforator and Fig. 2.
Claims (5)
1, a kind of oil gas well composite gun perforation device of fitted tube formula powder charge in the rifle, it is connected and composed by a joint perforator (2) or more piece perforator (2), described perforator has a perforating gun (10), in this perforating gun, be provided with tubular firing mount (9), and a plurality of perforating bullets (12) of axial dense arrangement are housed on this tubular firing mount, described perforating bullet according to its jet direction towards the perforating gun inwall and the direction of projectile tail in the tubular firing mount installed, and circumferential multi-faceted arrangement along tubular firing mount (9), the jet position that is right against each perforating bullet on the barrel of described perforating gun is provided with step through-hole (14), and on step through-hole, be provided with blanking cover (13), described tubular firing mount (9) is by establishing thereon, the circumferential location structure at following two ends is fixed in the gun barrel (10), make and obtain between tubular firing mount (9) and the perforating gun circumferentially fixing, on perforating gun, following two ends are associated with rifle head (1) or go up coupling head (4) and gun breech (5) or second line of a couplet joint (3) by helicitic texture, make tubular firing mount (9) in perforating gun, obtain axial restraint, in perforating gun (10), also axially run through a detonating fuse (7) with each perforating bullet projectile tail crimping, it is characterized in that: the coaxial cartridge type powder charge (8) that is equipped with between described perforating gun (10) and tubular firing mount (9), on the barrel of this cartridge type powder charge (8), position corresponding to each perforating bullet jet on the perforating gun has the through hole (19) that jet passes through.
2, the oil gas well according to claim 1 composite gun perforation device of fitted tube formula powder charge in the rifle, it is characterized in that: a plurality of perforating bullets (12) on the described tubular firing mount (9) are along 30 °～90 ° uniformly-spaced spiral axial dense arrangement of barrel dextrorotation.
3, oil gas well according to claim 1 and 2 is characterized in that: be with bullet cover (11) on the described perforating bullet (12) with the composite gun perforation device of fitted tube formula powder charge in the rifle.
4, the oil gas well according to claim 1 and 2 composite gun perforation device of fitted tube formula powder charge in the rifle, it is characterized in that: on the barrel of described perforating gun (20), be provided with the blind hole coaxial (21) with each perforating bullet jet direction, the 180 ° of correspondences in the back side of each blind hole (21) are provided with step through-hole (14), and are provided with blanking cover (13) on step through-hole.
5, oil gas well according to claim 1 and 2 is characterized in that: described cartridge type powder charge (8) single base of employing or double-base propellant or composite propellant or the making of burning class energetic material with the composite gun perforation device of fitted tube formula powder charge in the rifle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320109751 CN2653125Y (en) | 2003-11-11 | 2003-11-11 | Composite perforating device of gun inner loading tubular gunpowder for oil-gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320109751 CN2653125Y (en) | 2003-11-11 | 2003-11-11 | Composite perforating device of gun inner loading tubular gunpowder for oil-gas well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2653125Y true CN2653125Y (en) | 2004-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320109751 Expired - Lifetime CN2653125Y (en) | 2003-11-11 | 2003-11-11 | Composite perforating device of gun inner loading tubular gunpowder for oil-gas well |
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| CN (1) | CN2653125Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011057564A1 (en) * | 2009-11-11 | 2011-05-19 | 西安通源石油科技股份有限公司 | Combined fracturing and perforating method and device for oil and gas well |
| CN109057787A (en) * | 2018-10-11 | 2018-12-21 | 青岛大地新能源技术研究院 | Controllable perforating site physical analogy pit shaft experimental provision and its application method |
| CN112709554A (en) * | 2020-12-31 | 2021-04-27 | 大庆金祥寓科技有限公司 | Oversleeve type composite fixed-position fixed-firing-angle perforating device |
-
2003
- 2003-11-11 CN CN 200320109751 patent/CN2653125Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011057564A1 (en) * | 2009-11-11 | 2011-05-19 | 西安通源石油科技股份有限公司 | Combined fracturing and perforating method and device for oil and gas well |
| CN109057787A (en) * | 2018-10-11 | 2018-12-21 | 青岛大地新能源技术研究院 | Controllable perforating site physical analogy pit shaft experimental provision and its application method |
| CN112709554A (en) * | 2020-12-31 | 2021-04-27 | 大庆金祥寓科技有限公司 | Oversleeve type composite fixed-position fixed-firing-angle perforating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: High tech Zone technology two road 710075 Shaanxi city of Xi'an province No. 70 Software Park Lege Tang room D301 Patentee after: Xi'an Tongyuan Petrotech Co., Ltd. Address before: 710065, Shaanxi, Xi'an electronic road, 18 West electronic mall, five floor Patentee before: Xi'an Tongyuan Petrotech Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131111 Granted publication date: 20041103 |