CN203584388U - Simulated perforating bullet and composite perforator - Google Patents
Simulated perforating bullet and composite perforator Download PDFInfo
- Publication number
- CN203584388U CN203584388U CN201320766369.4U CN201320766369U CN203584388U CN 203584388 U CN203584388 U CN 203584388U CN 201320766369 U CN201320766369 U CN 201320766369U CN 203584388 U CN203584388 U CN 203584388U
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- bullet
- perforator
- nonmetals
- perforation
- perforating bullet
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Abstract
The utility model belongs to the field of perforation completion, and particularly relates to a simulated perforating bullet and a composite perforator. The utility model provides athe simulated perforating bullet, when the perforation is performed at the positions where the thickness of the underground oil reservoirs is small, a perforator loaded with the simulated perforating bullet for one part and loaded with the a perforating bullet for another part is adopted, and the deflagration pressure in the perforator is balanced at an instant of perforation, so that the problem in the prior art that the operation effect is bad when the perforator loaded with the perforating bullet for one part and loaded with the a blank bullet for another part performs perforation at the positions where the thickness of the underground oil reservoirs is small can be solved.
Description
Technical field
The utility model belongs to perforation completion field, is specifically related to a kind of analogue perforation bullet and composite perforator
Background technology
Oil field development is in recent years shifted to thin poor layer, some large-scale oil fields particularly, general core intersection is all very little, some core intersection only has 0.5 meter, when carrying out composite gun perforation operation, all to from the composite perforator of whole rice, fill less a few launch hole bullets and propellant tablet, sometimes according to the requirement of oil field technique, need to fill less perforating bullet and propellant, cause the perforating job of composite perforator in discontented bullet situation a lot.
Therefore, when using conventional composite perforator to carry out downhole perforation operation, occurred that part interval effect is better, the poor phenomenon of part interval effect, by thinking that one of them main cause is the impact of composite perforator empty in discontented bullet situation, empty has changed the loading density of gunpowder in rifle, pressure when pressure does not reach full rifle while making the interior powder burning of rifle, will decline to the action effect on stratum.If empty quantity is more, action effect will significantly decline.
Utility model content
The utility model provides a kind of analogue perforation bullet and composite perforator, while mainly having solved under conventional well perforating job, and the problem that composite perforator declines to stratum action effect at empty place pressure decreased.
Concrete technical scheme of the present utility model is:
An analogue perforation bullet, comprises nonmetals housing and the nonmetals housing end plug being connected with nonmetals housing; Described nonmetals enclosure interior is provided with two cavitys, and one is for holding the explosive cavity of explosive, and another is for holding the gunpowder cavity of gunpowder.
Above-mentioned nonmetals are plastics or rubber or pottery.
In addition, this has proposed a kind of composite perforator the utility model, and this perforator comprises a plurality of holes that shoot that are opened on firing mount; The described hole that shoots is provided with multi-openings bullet and a plurality of above-mentioned analogue perforation bullet.
The beneficial effects of the utility model are:
1, the utility model adopts the composite perforator that analogue perforation bullet is installed, and analogue perforation bullet and perforating bullet are detonated simultaneously, the blast balance of analogue perforation bullet the pressure of generation after blast, greatly improved the action effect to stratum.
2, the utility model adopts the composite perforator that analogue perforation bullet is installed, and has avoided conventional art gunpowder to be installed, the unsafe factors such as the fried rifle causing between being hit by a bullet; Greatly improved the quality of underground work simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of analogue perforation bullet.
Fig. 2 is the structural representation of composite perforator.
Fig. 3 is that imitating shell and the dress imitating shell P-T of composite perforating charge empty place J curve effectJ comparison diagram are unkitted in composite perforator empty place.
1-nonmetals housing, 2-nonmetals end cap, 3-explosive cavity, 4-gunpowder cavity, 5-hollow carrier, 6-firing mount, 7-shoot hole, 8-step through-hole, 9-jam, 10-detonating fuse, 11-perforating bullet, 12-analogue perforation bullet.
The specific embodiment
Composite perforator is when carrying out perforating job for the little stratum of core intersection, conventionally at the installation perforating bullet in hole that shoots of firing mount, a part is not for shooting, and fill gunpowder between each perforating bullet, therefore, occurred that part interval effect is better, the poor phenomenon of part interval effect, greatly reduced the effect of down-hole composite gun perforation operation.
Analogue perforation bullet of the present utility model, comprises nonmetals housing 1 and nonmetals end cap 2; Nonmetals housing 2 inside are provided with two cavitys, and one is for holding the explosive cavity 3 of explosive, and another is for holding the gunpowder cavity 4 of gunpowder.
Especially, this nonmetals housing and nonmetals end cap all can adopt the materials such as plastics or rubber or pottery to make.
Based on above-mentioned analogue perforation bullet, thereby designed a kind of composite perforator, as shown in Figure 2, comprised hollow carrier 5 and be arranged on the firing mount 6 in hollow carrier 5, firing mount 6 is offered a plurality of holes 7 that shoot vertically; A plurality of shooting, in hole 7, be separately installed with multi-openings bullet 11 and a plurality of analogue perforation bullet 12 identical with perforating bullet 11 profiles; A plurality of analogue perforation bullets 12 are connected by detonating fuse 10 with multi-openings bullet 11; Hollow carrier 5 offers step through-hole 8 in the position that shoots hole 7 over against each, and jam 9 is installed on step through-hole.
According to above-mentioned analogue perforation bullet and composite perforator, the utility model proposes following perforating job method: its concrete steps are:
1] according to downhole oil layer thickness, the perforating bullet on the length of the composite perforator that confirmation need to be gone into the well and this composite perforator and assemble sequence and the quantity information of analogue perforation bullet;
2] according to step 1] information confirmed, recycling analogue perforation bullet and perforating bullet fill up the hole that shoots on composite perforator firing mount respectively;
3] perforator is gone into the well, start to carry out perforating job.
When perforator enters behind down-hole, light detonating fuse, detonating fuse moment ignition is arranged on perforating bullet and the analogue perforation bullet in perforator, now, the effect of analogue perforation bullet is: first by ignition, be arranged on the explosive in analogue perforation bullet plastic casing, by explosive initiation gunpowder, thereby can wash the jam on hollow carrier open, simultaneously, gunpowder detonation in analogue perforation bullet produces high temperature and high pressure gas in perforator and in pit shaft, effectively stoped the gases at high pressure that produce after the detonation of composite perforator perforating bullet to the channelling of the low sandwich segment of pressure, balance pressure, guaranteed the effect of perforator to stratum perforation.
Analogue perforation bullet is unkitted at composite perforator empty place and Fig. 3 is shown in the contrast of the dress analogue perforation bullet P-T of composite perforating charge empty place J curve effectJ, according to two curves in figure, can find out, use the blast pressure of the composite perforator that perforating bullet and empty combination are installed to compare with using the composite perforator blast pressure that perforating bullet and the combination of analogue perforation bullet are installed, the latter's pressure is obviously greater than the former, this explanation is installed the composite perforator of perforating bullet and the combination of analogue perforation bullet when perforating job, due to analogue perforation bullet balance after blast in perforator pressure, therefore the pressure discharging is larger, the effect of perforating job is better.
Claims (3)
1. an analogue perforation bullet, is characterized in that: comprise nonmetals housing and the nonmetals housing end plug being connected with nonmetals housing; Described nonmetals enclosure interior is provided with two cavitys, and one is for holding the explosive cavity of explosive, and another is for holding the gunpowder cavity of gunpowder.
2. analogue perforation bullet according to claim 1, is characterized in that: described nonmetals are plastics or rubber or pottery.
3. a composite perforator, comprises a plurality of holes that shoot that are opened on firing mount; It is characterized in that: described in shoot hole multi-openings bullet and a plurality of analogue perforation bullet based on described in claim 1 or 2 be installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320766369.4U CN203584388U (en) | 2013-11-26 | 2013-11-26 | Simulated perforating bullet and composite perforator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320766369.4U CN203584388U (en) | 2013-11-26 | 2013-11-26 | Simulated perforating bullet and composite perforator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584388U true CN203584388U (en) | 2014-05-07 |
Family
ID=50582324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320766369.4U Withdrawn - After Issue CN203584388U (en) | 2013-11-26 | 2013-11-26 | Simulated perforating bullet and composite perforator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584388U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590790A (en) * | 2013-11-26 | 2014-02-19 | 西安通源石油科技股份有限公司 | Simulating perforating bullet, composite perforator and perforating operation method |
-
2013
- 2013-11-26 CN CN201320766369.4U patent/CN203584388U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590790A (en) * | 2013-11-26 | 2014-02-19 | 西安通源石油科技股份有限公司 | Simulating perforating bullet, composite perforator and perforating operation method |
| CN103590790B (en) * | 2013-11-26 | 2016-06-15 | 西安通源石油科技股份有限公司 | A kind of analogue perforation bullet, composite perforator and perforating job method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140507 Effective date of abandoning: 20160615 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |