CN201568033U - Cylinder charging device for oil well composite perforator - Google Patents
Cylinder charging device for oil well composite perforator Download PDFInfo
- Publication number
- CN201568033U CN201568033U CN2009203145651U CN200920314565U CN201568033U CN 201568033 U CN201568033 U CN 201568033U CN 2009203145651 U CN2009203145651 U CN 2009203145651U CN 200920314565 U CN200920314565 U CN 200920314565U CN 201568033 U CN201568033 U CN 201568033U
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- CN
- China
- Prior art keywords
- cartridge
- cartridge case
- end cap
- tubular sheath
- positioning convex
- Prior art date
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- Expired - Lifetime
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Abstract
The utility model relates to a cylinder charging device for an oil and gas well composite perforator, which is convenient to install, and comprises a hollow cartridge which comprises an internal cartridge, an external cartridge, an end cap and a tubular sheath, wherein the internal cartridge and the external cartridge are respectively provided with a bullet hole corresponding to a perforating bullet, the tubular sheath is inserted into the bullet hole corresponding to the perforating bullet, and an inner cavity of the hollow cartridge is filled with crushed gunpowder. The cylinder charging device is suitable for various composite perforators with normal density and high density used at home and abroad, and can realize combination use of various gunpowder.
Description
Technical field
The utility model relates to petroleum exploration field, particularly a kind of cartridge type means for loading that is used for oil gas well composite gun perforation.
Background technology
Compound technique of perforating is that perforating bullet and gunpowder are combined, in the time of perforation, can implement the pressure break acting to the stratum successively with the gas expansion energy (second energy) that powder burning is produced by the lined-cavity charge impact generated by explosion, can form the vast fracture network that not influenced by geostatic stress in the near wellbore zone, eliminate the pollution of drilling well, well cementation and perforation to the stratum, improve the communication state of pit shaft and oil reservoir and the osmotic effect on stratum, improve oil gas well capacity and life-span.Traditional composite perforator powder charge adopts the form of structure that adds the gunpowder tablet between bullet and the bullet mostly, but under the close condition with higher in perforation hole, space between bullet and the bullet can further be reduced, and the powder charge amount also can reduce thereupon, directly influences the ability of second energy to the formation breakdown acting.Chinese patent CN2821154 discloses the composite gun perforation device of a kind of modular medicine box powder charge, this device adopts in the form of metal firing mount external surface according to a plurality of medicine boxs of certain regularly arranged installation, can effectively improve explosive payload, but this form is in actual applications, particularly in the assembling of Gao Kongmi, long well section perforator, and the perforator of 40 every meter or more perforating bullets for example, numerous medicine boxs need be contained on the firing mount successively, assemble very loaded down with trivial detailsly, the activity duration is long, and efficient is low.Have a kind ofly to pour into the cartridge case structure of tubular, but its moulding by casting difficulty is big, very easily deforms again after the moulding at the compound gunpowder of firing mount external application, assemble very difficult, so this charge constitution can't obtain actual promoting the use of.
Summary of the invention
Problem to be solved in the utility model is: provide a kind of firing mount of being convenient to install that is used for composite perforator outer cartridge type means for loading.
The technical scheme that addresses the above problem is: the cartridge type means for loading that is used for oil gas well composite perforator that is provided comprises a hollow cartridge of being made up of interior cartridge case, outer cartridge case, end cap and tubular sheath, interior cartridge case and outer cartridge case are provided with the shell hole corresponding with perforating bullet, tubular sheath inserts in the shell hole corresponding with perforating bullet, and the inner chamber of this hollow cartridge is filled the pressure break gunpowder.Hollow cartridge is enclosed within outside the firing mount of perforator during assembling, and the shell hole on the hollow cartridge is corresponding one by one with shell hole on the firing mount.Above-mentioned tubular sheath can block the opening between interior cartridge case and outer cartridge case shell hole, and protection pressure break gunpowder can not expose.Because the hollow cartridge structure that adopts inside and outside cartridge case to form, its cartridge case is not yielding, so install very convenient.
The connected mode of above-mentioned inside and outside cartridge case and end cap can have multiple, and for example: offer the positioning ring groove of two indents on the end cap, the termination of interior cartridge case and outer cartridge case insertion end respectively covers in two indent positioning ring grooves offering.Preferred mode is: end cap is provided with first positioning convex ring and second positioning convex ring, interior cartridge end is enclosed within on first positioning convex ring of end cap, outer cartridge end is enclosed within on second positioning convex ring of end cap, this structure both can reduce the thickness of end cap, increase explosive payload, can strengthen the rigidity of cartridge case again, make cartridge case not yielding more.
Compare with the cartridge case of existing moulding by casting, the utility model is convenient to make, and is not yielding, and assembling is simple, and efficiency of assembling is higher, promotes for large tracts of land and created advantage.
Description of drawings
Fig. 1 is the structure chart of an embodiment of the utility model.
Fig. 2 is the assembling drawing of Fig. 1 cartridge case end cap part.
Fig. 3 is the assembling drawing of Fig. 1 tubular sheath part.
Fig. 4 is the structure chart of Fig. 1 tubular sheath.
Fig. 5 is the assembling drawing of the utility model and perforator firing mount.
The specific embodiment
Below in conjunction with drawings and Examples content of the present utility model is described in detail.
As Fig. 1, Fig. 2 and shown in Figure 3: on correspondence position, offer shell hole 5 according to the hole density and the phase place of the perforating bullet of setting on interior cartridge case 1 and the outer cartridge case 2, perforating bullet of each shell hole correspondence.Outer cartridge case 2 and interior cartridge case 1 are fixed on the end cap 4, and tubular sheath 6 inserts in the shell hole of outer cartridge cases 2 and interior cartridge case 1, the opening between inside and outside cartridge case shell hole is sealed, thereby constituted the cartridge case of a hollow, and pressure break gunpowder 3 places in the cavity between inside and outside cartridge case.Cooperating between inside and outside cartridge case and the end cap is such: end cap 4 is provided with first positioning convex ring 41 and second positioning convex ring 42, interior cartridge case 1 termination point casing is the outside in first positioning convex ring 41 of end cap, and the termination point casing of outer cartridge case 2 is inboard outside second positioning convex ring 42 of end cap.
Referring to Fig. 3, Fig. 4, tubular sheath 6 is made up of tubular body 63 and the flange 61 that is positioned at the tubular body termination, and tubular body 63 is provided with pointed protruding 62.Flange 61 and pointed protruding 62 is used for the axial location of tubular sheath.
Referring to Fig. 5, when assembling is used, locating ring 7 with perforator firing mount 9 one ends takes off earlier, this means for loading is enclosed within on the firing mount 9, according to the position of cartridge case length adjustment cartridge case on firing mount, make the cartridge case shell hole corresponding one by one according to the shell hole hand of spiral, the perforating bullet 8 of packing in proper order with the firing mount shell hole, guarantee that the perforating bullet jet direction is not covered, load onto locating ring 7 then.This device is restricted by the perforating bullet position, can not take place axially and moving radially.
The cartridge case length of this means for loading can have plurality of specifications, and the perforator firing mount of corresponding plurality of specifications also can also install dissimilar gunpowder additional according to demand according to the cartridge case combine and assemble of the optimal design of dose being selected different length in each joint cartridge case.The utility model is fit at present the close composite perforator in the close and high hole of various plain bores of use both at home and abroad.
Claims (4)
1. cartridge type means for loading that is used for oil gas well composite perforator, it is characterized in that comprising a hollow cartridge of forming by interior cartridge case (1), outer cartridge case (2), end cap (4) and tubular sheath (6), interior cartridge case and outer cartridge case are provided with the shell hole corresponding with perforating bullet (5), tubular sheath (6) inserts in the shell hole (5) corresponding with perforating bullet, and the inner chamber of this hollow cartridge is filled pressure break gunpowder (3).
2. cartridge type means for loading according to claim 1, it is characterized in that said end cap (4) is provided with first positioning convex ring (41) and second positioning convex ring (42), interior cartridge case (1) end is enclosed within on first positioning convex ring (41) of end cap, and outer cartridge case (2) end is enclosed within on second positioning convex ring (42) of end cap.
3. cartridge type means for loading according to claim 1 is characterized in that offering on the said end cap (4) positioning ring groove of two indents, and the termination of interior cartridge case (1) and outer cartridge case (2) insertion end respectively covers in two indent positioning ring grooves offering.
4. cartridge type means for loading according to claim 1 and 2 is characterized in that tubular sheath (6) is made up of tubular body (63) and the flange (61) that is positioned at the tubular body termination, and tubular body (63) is provided with pointed projection (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203145651U CN201568033U (en) | 2009-11-11 | 2009-11-11 | Cylinder charging device for oil well composite perforator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203145651U CN201568033U (en) | 2009-11-11 | 2009-11-11 | Cylinder charging device for oil well composite perforator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201568033U true CN201568033U (en) | 2010-09-01 |
Family
ID=42660320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203145651U Expired - Lifetime CN201568033U (en) | 2009-11-11 | 2009-11-11 | Cylinder charging device for oil well composite perforator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201568033U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410006A (en) * | 2011-12-15 | 2012-04-11 | 西安通源石油科技股份有限公司 | Explosive loading structure for multi-stage composite perforating device |
| CN110431283A (en) * | 2017-03-27 | 2019-11-08 | 欧文石油工具有限合伙公司 | Perforating gun with novel powder charge tube assembly |
-
2009
- 2009-11-11 CN CN2009203145651U patent/CN201568033U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410006A (en) * | 2011-12-15 | 2012-04-11 | 西安通源石油科技股份有限公司 | Explosive loading structure for multi-stage composite perforating device |
| CN102410006B (en) * | 2011-12-15 | 2014-05-07 | 西安通源石油科技股份有限公司 | Explosive loading structure for multi-stage composite perforating device |
| CN110431283A (en) * | 2017-03-27 | 2019-11-08 | 欧文石油工具有限合伙公司 | Perforating gun with novel powder charge tube assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100901 |