CN201507295U - Front-end powder box for perforating bullets - Google Patents
Front-end powder box for perforating bullets Download PDFInfo
- Publication number
- CN201507295U CN201507295U CN2009200346771U CN200920034677U CN201507295U CN 201507295 U CN201507295 U CN 201507295U CN 2009200346771 U CN2009200346771 U CN 2009200346771U CN 200920034677 U CN200920034677 U CN 200920034677U CN 201507295 U CN201507295 U CN 201507295U
- Authority
- CN
- China
- Prior art keywords
- box body
- cover plate
- gunpowder
- perforating bullet
- perforating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a front-end powder box for perforating bullets, which comprises a box body, a cover plate and gunpowder, wherein the box body is hollow, the outer wall of the box body is provided with a circle of protruded circular ring groove bodies, the cover plate is provided with a hollow projection, the gunpowder is installed in a ring groove, the projection of the cover plate is assembled in a center hole of the box body and seals the gunpowder in the ring groove of the box body, and the front-end powder box is mounted on the front end port portion of the perforating bullet and is compressed on a bullet frame through a protruded edge belt. The front-end powder box has the outstanding advantages of simple structure, easy processing and assembling and low cost, and can improve perforation effects of perforating bullets. The front-end powder box is applicable to front and reverse reloading frames of a plurality of compound bullet perforators.
Description
Technical field
The utility model belongs to field of petroleum exploitation, relates generally to a kind of powder charge utensil of perforating bullet, relates in particular to the preposition medicine box that a kind of perforating bullet is used.
Background technology
Composite gun perforation is a kind of gun perforation process that very wide model is used in present perforation field, and it can improve perforating effect, improves oil, gas well output.At present, the powder charge mode of domestic integral type composite perforator has following several: the side puts that medicine cake, firing mount are wrapped up in the medicine band outward, containing can firing mount and gunpowder casting etc.The gunpowder of above-mentioned several charging means all is in the perforating gun internal combustion, and the combustion gas of generation lags behind the jet of perforating bullet and acts on the perforation tunnel, thereby discontinuous to the pressure break effect on stratum, and perforating effect is good inadequately.
The powder charge modes of existing two multiple perforating bullets adopt medicine box, and this medicine box is made of multiple curved-surface structure body, thereby manufacturing and assembly difficulty are bigger, and cost is higher, is not easy to promote the use of.
The utility model content
The technical problems to be solved in the utility model is at the deficiency of existing perforating bullet charging means, to provide a kind of novel structure, assemble the preposition medicine box that easy, with low cost, all kinds of perforating bullet can be general.
For solving the problems of the technologies described above, the preposition medicine box that the utility model provides is made of box body, cover plate and gunpowder, described box body is to have at the bottom of the oblate structure and circular ring slot one end band of centre bore and circular ring slot, and the box body outer wall is provided with the prominent edge of a circle and the bottom is provided with chamfering; Described cover plate center has the projection and the projection that are complementary with described box body centre bore and has central through hole, the external diameter of cover plate and the external diameter of described circular ring slot are complementary, described gunpowder is contained in the circular ring slot of described box body, the last annular end face of cover plate inner face and box body is connected and projection is inserted in the centre bore of box body, during use, box body is prominent along being complementary with the step surface of perforating bullet front end shell case oral area respectively with the outer face of cover plate and prominently being pressed on the firing mount along the outer ring.
According to the utility model, it is 120 ℃～160 ℃ plastic production that described box body and described cover plate all adopt the heatproof temperature.
According to the utility model, described gunpowder is selected the rocket solid propellant of the anti-160 ℃ of high temperature that added the rock fracture proppant for use.
The beneficial effects of the utility model are embodied in the following aspects.
(1) preposition medicine box of the present utility model is a hollow disc shape, and when perforating bullet detonated, jet can be passed by the centre bore of preposition medicine box and can not be disturbed smoothly, thereby also wears deeply with regard to the perforation that can not influence perforating bullet; In addition, gunpowder in the preposition medicine box and rock fracture proppant can be followed jet and be entered preforation tunnel, when its combustion gas peak pressure does not fall after rise as yet fully at the jet peak pressure, just followed by affacting on the hole wall, make pressure break and prolong the seam better effects if, thereby can increase oil, gas well output.
(2) preposition medicine box of the present utility model is to be loaded on the perforating bullet with the mounting means that the step of perforating bullet front end shell case oral area matches by the step that its prominent edge of box body annular and cover plate end face form, this neither influences the assembling of detonating fuse, do not influence other assembling of putting medicine box and the outer gunpowder of firing mount yet, therefore can be installed in perforating bullet outside on the polytype firing mount.
(3) preposition medicine box novel structure of the present utility model, the assembling easy, with low cost, have wide application market.
Description of drawings
Fig. 1 is that the structure of the preposition medicine box of the utility model is formed schematic diagram.
Fig. 2 is that the preposition medicine box of the utility model is fitted in the schematic diagram on the perforating bullet.
The specific embodiment
As shown in Figure 1, the preposition medicine box of the utility model preferred embodiment is made up of box body 1, cover plate 2 and gunpowder 3.It is 120 ℃～160 ℃ plastic production that box body 1 and cover plate 2 all adopt the heatproof temperature.Box body 1 is for to have at the bottom of the oblate structure and annular groove one end band of centre bore and circular ring slot, the diameter of centre bore is Φ 20mm, the internal diameter consistent (referring to Fig. 2) of the external diameter of circular ring slot and the perforating bullet 5 front end shell case oral areas of preposition medicine box A adapted, the outer wall of box body 1 is provided with the prominent edge of a circle and the bottom is provided with a circle chamfering, distance between the last annular end face of prominent edge and box body 1 can be decided according to the shoulder height of perforating bullet front end shell case oral area and the thickness of cover plate 2, the external diameter on prominent edge is greater than the external diameter of the perforating bullet 5 front end shell case oral areas of preposition medicine box A adapted, box body 1 bottom chamfer is generally at 20 °～45 °, and its effect is the rifle body 6 that gets out of the way perforating gun.Cover plate 2 centers have the projection and the projection that are complementary with box body 1 centre bore and have central through hole, and the external diameter of cover plate 2 and the external diameter of circular ring slot are complementary.Fill gunpowder 3 in the circular ring slot of box body 1, in this preferred embodiment, gunpowder 3 has been selected the rocket solid propellant of anti-160 ℃ of high temperature for use, has added the rock fracture proppant in the rocket solid propellant.The last annular end face of the inner face of cover plate 2 and box body 1 is connected and projection is inserted in the centre bore of box body 1.
According to shown in Figure 2, in common perforating gun, perforating bullet 5 is fixed in the rifle body 6 by firing mount 4.When the utility model is applied to perforating bullet 5, the step that forms between the prominent edge of box body 1 and the outer end of cover plate 2 is complementary with the step of perforating bullet 5 front end shell case oral areas respectively, and the prominent of box body 1 that is exposed to beyond the perforating bullet 5 front end shell case oral areas is pressed on the firing mount 4 along sideband.
Preposition medicine box of the present utility model has strengthened the powder charge amount in the perforating gun, and each preposition medicine box explosive payload about 15g is an example with the perforating gun of 16 hole/rice, can adorn the 240g gunpowder in every meter perforating gun more.
Claims (3)
1. preposition medicine box of perforating bullet, constitute by box body [1], cover plate [2] and gunpowder [3], it is characterized in that: described box body [1] is for to have at the bottom of the oblate structure and circular ring slot one end band of centre bore and circular ring slot, and box body [1] outer wall is provided with the prominent edge of a circle and the bottom is provided with chamfering; Described cover plate [2] center has the projection and the projection that are complementary with described box body [1] centre bore and has central through hole, the external diameter of cover plate [2] and the external diameter of described circular ring slot are complementary, described gunpowder [3] is contained in the circular ring slot of described box body [1], the last annular end face of cover plate [2] inner face and box body [1] is connected and projection is inserted in the centre bore of box body, during use, box body [1] is prominent along being complementary with the step surface of perforating bullet [5] front end shell case oral area respectively with the outer face of cover plate [2] and prominently being pressed on the firing mount [4] along the outer ring.
2. the preposition medicine box of perforating bullet according to claim 1 is characterized in that: it is 120 ℃～160 ℃ plastic production that described box body [1] and described cover plate [2] all adopt the heatproof temperature.
3. the preposition medicine box of perforating bullet according to claim 1 and 2 is characterized in that: described gunpowder [3] is selected the rocket solid propellant of the anti-160 ℃ of high temperature that added the rock fracture proppant for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200346771U CN201507295U (en) | 2009-09-22 | 2009-09-22 | Front-end powder box for perforating bullets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200346771U CN201507295U (en) | 2009-09-22 | 2009-09-22 | Front-end powder box for perforating bullets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201507295U true CN201507295U (en) | 2010-06-16 |
Family
ID=42468423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200346771U Expired - Lifetime CN201507295U (en) | 2009-09-22 | 2009-09-22 | Front-end powder box for perforating bullets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201507295U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094613A (en) * | 2010-12-29 | 2011-06-15 | 西安通源石油科技股份有限公司 | Composite perforating method and device carrying support agent |
-
2009
- 2009-09-22 CN CN2009200346771U patent/CN201507295U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094613A (en) * | 2010-12-29 | 2011-06-15 | 西安通源石油科技股份有限公司 | Composite perforating method and device carrying support agent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160818 Address after: 710061 No. 213 rosefinch Avenue, Yanta District, Shaanxi, Xi'an Patentee after: Xi'an Wuhua Energy Exploding Equipment Co.,Ltd. Address before: 710061 No. 213 rosefinch Avenue, Yanta District, Shaanxi, Xi'an Patentee before: No.213 Research Institute of China North Industries Group Corporation |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100616 |
|
| CX01 | Expiry of patent term |