CN203420688U - Energy-releasing composite synergetic perforator - Google Patents
Energy-releasing composite synergetic perforator Download PDFInfo
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- CN203420688U CN203420688U CN201320554318.5U CN201320554318U CN203420688U CN 203420688 U CN203420688 U CN 203420688U CN 201320554318 U CN201320554318 U CN 201320554318U CN 203420688 U CN203420688 U CN 203420688U
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- synergist
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- perforator
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Abstract
The utility model discloses an energy-releasing composite synergetic perforator. By the aid of the energy-releasing composite synergetic perforator, problems that compaction zones are formed around a perforation channel by an existing perforator and flow resistance generated when formation fluid flows to an eyelet is increased by rock fragments and metal powder which remain in the channel can be solved. The energy-releasing composite synergetic perforator particularly comprises a spear, a gun body, a detonating cord, a positioning plate, a pyrolysis gun carrier and perforating charges, and is characterized in that two groups of synergist tablets are respectively arranged on the upper side and the lower side of each perforating charge on the pyrolysis gun carrier, each group of synergist tablets comprises two energy-releasing synergist tablets and a high-energy gaseous synergist tablet, each high-energy gaseous synergist tablet is positioned between the two corresponding energy-releasing synergist tablets, and each high-energy gaseous synergist tablet and the corresponding energy-releasing synergist tablets are vertically overlapped on one another. The energy-releasing composite synergetic perforator has the advantage that owing to an energy-releasing perforation technology and a composite perforation technology, purposes of cleaning channels, increasing the diameters of the channels and improving the flow guide capacity of the perforation channels can be achieved.
Description
Technical field
The utility model relates to the perforator using in oilfield prospecting developing perforating job.
Background technology
At present, using jet perforator to carry out perforating job is the main completion mode in oilfield prospecting developing, after lined-cavity charge is ignited by detonating fuse, the cavity liner of perforating bullet forms metal jet at a high speed under detonation wave effect, penetrate perforating gun, sleeve pipe, cement sheath and enter stratum, form the passage that gas stream enters pit shaft.Cell walls, formation rock are subject to deforming after the jet impulse of high temperature, high pressure, fragmentation and compacting, the surrounding's formation compaction band in perforation tunnel; Experimental study is thought approximately 0.64～1.27cm of this compacting tape thickness, and permeability is original permeability 7%～20%, has had a strong impact on oily well capacity.In addition in perforating bullet perforation procedure, in duct, residual rock chip and metal dust have increased formation fluid and have flowed to the flow resistance of eyelet, thereby have reduced oily capacity of well.Must rely on after underbalance perforating, by stratum, in perforation tunnel, cause that with the pressure differential between pit shaft flow increases sharply separated and displaces chip, to clean perforation tunnel.
Summary of the invention
The purpose of this utility model is to provide a kind of energy cladding synergistic perforator of releasing, this perforator can produce subsequent explosion reaction in perforation tunnel, stay next clean, unspoiled perforation tunnel, do not rely on negative pressure just to provide without chip perforation tunnel, reduce fracture pressure, improve perforation efficiency, between stratum and pit shaft, set up good oil flow channel.
For achieving the above object, the technical solution adopted in the utility model is: a kind of energy cladding synergistic perforator of releasing, comprise rifle head, the body of a gun, detonating fuse, positioning disk, cleavable firing mount and perforating bullet, the two ends up and down of cleavable firing mount are fixed in the chamber that the body of a gun surrounds by positioning disk, on cleavable firing mount, load some perforating bullets, detonating fuse passes rifle head and upper positioning disk and is connected with each perforating bullet, it is characterized in that: on cleavable firing mount, one group of synergist sheet is put respectively in the top of each perforating bullet and below, and every group of synergist sheet all by two release can synergist sheet and a slice high energy gas synergist sheet form, high energy gas synergist sheet is positioned at two centres of releasing energy synergist sheet, two kinds of synergist sheets are superimposed up and down.
After perforating bullet detonates, in perforating gun, produce HTHP, ignite and release energy synergist sheet and high energy gas synergist sheet, generate a large amount of gases at high pressure products and product.Product and rifle inner high voltage air-flow, the eyelet forming by perforation and duct enter in stratum, the metal jet forming with perforating bullet jointly completes subsequent explosion and reacts in duct, produce more gaseous product, can increase crack, duct, clean perforation tunnel, and then form duct minute-pressure and split, later stage fracturing work cost saved.In perforating gun, cleavable firing mount can reduce the generation of large fragmentary product, avoids trouble of lost tool in hole to occur Ka Jing.
The utility model is compared and is had following effect with current technology: by releasing energy perforating technology and compound technique of perforating, the subsequent explosion that perforator is produced after detonating acts directly on inside, perforation tunnel, compaction band, chip and impurity in perforation tunnel are rinsed and returned and gush, the rock chip and the metal dust that in duct, come off are removed from duct, and produce crack in cell ends, holding time in prolongation Energy Efficient action time and crack in ignition process, improves perforating effect.Final clean duct, increase channel diameter, the raising perforation tunnel flow conductivity realized.Can reduce the formation fracture pressure in oil field, reduce oil field compression fracture work production cost, improve Oil & Gas Productivity.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model is released energy cladding synergistic perforator.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
As shown in Figure 1: a kind of energy cladding synergistic perforator of releasing, comprise rifle head 1, the body of a gun 4, detonating fuse 2, positioning disk 3, cleavable firing mount 5 and perforating bullet 6, the two ends up and down of cleavable firing mount 5 are fixed in the chamber that the body of a gun 4 surrounds by positioning disk 3, on cleavable firing mount 5, load some perforating bullets 6, detonating fuse 2 passes rifle head 1 and upper positioning disk 3 and is connected with each perforating bullet 6; Described perforator also comprises that round pie that some specifications are identical is released can synergist sheet 7 and high energy gas synergist sheet 8, on cleavable firing mount 5, each perforating bullet 6 above and below put respectively one group of synergist sheet, and every group of synergist sheet all by two release can synergist sheet and a slice high energy gas synergist sheet form, high energy gas synergist sheet is positioned at two centres of releasing energy synergist sheet, and two kinds of synergist sheets are superimposed up and down.High energy gas synergist sheet 8 adopts pressure break medicine cake, releases and can adopt the metallic aluminium that can react with well liquid generation very exothermic compressing by synergist sheet 7.
After perforator detonates, explosive inflammation detonation product mainly contains H2O, CO2, CO, C, N2, H2 etc., reacts with the metallic aluminium of releasing in energy synergist sheet, discharges a large amount of heat, makes metallic aluminium become the aluminium of molten state.The metallic aluminium of molten condition is under the pressure of the effect of rifle inner high voltage, with air-flow, by body of a gun eyelet, released, except small part and well liquid generation vigorous reaction, major part enters in perforation tunnel, in duct, react with well liquid, produce a large amount of gaseous products, and discharge heat energy, act directly on inside, perforation tunnel, to compaction band in perforation tunnel, chip and impurity rinse and return and gushes, the rock chip and the metal dust that in duct, come off are removed from duct, and produce crack in cell ends, final realization cleaned duct, increase channel diameter, improve perforation tunnel in-place permeability around, improve the object of perforation tunnel flow conductivity.The generation of cell ends microcrack, is conducive to reduce formation fracture pressure, for the later stage is implemented formation breakdown reduction operating cost.Apply compound technique of perforating simultaneously, can effectively extend perforation tunnel self-energy action time and hold time in crack, realize the object of polynary composite synergistic.
Claims (1)
1. release energy cladding synergistic perforator for one kind, comprise rifle head, the body of a gun, detonating fuse, positioning disk, cleavable firing mount and perforating bullet, the two ends up and down of cleavable firing mount are fixed in the chamber that the body of a gun surrounds by positioning disk, on cleavable firing mount, load some perforating bullets, detonating fuse passes rifle head and upper positioning disk and is connected with each perforating bullet, it is characterized in that: on cleavable firing mount, one group of synergist sheet is put respectively in the top of each perforating bullet and below, and every group of synergist sheet all by two release can synergist sheet and a slice high energy gas synergist sheet form, high energy gas synergist sheet is positioned at two centres of releasing energy synergist sheet, two kinds of synergist sheets are superimposed up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320554318.5U CN203420688U (en) | 2013-09-06 | 2013-09-06 | Energy-releasing composite synergetic perforator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320554318.5U CN203420688U (en) | 2013-09-06 | 2013-09-06 | Energy-releasing composite synergetic perforator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203420688U true CN203420688U (en) | 2014-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320554318.5U Expired - Lifetime CN203420688U (en) | 2013-09-06 | 2013-09-06 | Energy-releasing composite synergetic perforator |
Country Status (1)
| Country | Link |
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| CN (1) | CN203420688U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847315A (en) * | 2015-03-25 | 2015-08-19 | 大庆红祥寓科技有限公司 | Expansion composite perforating gun |
| CN106050193A (en) * | 2016-08-02 | 2016-10-26 | 中国科学技术大学 | Liquid injection pressurization secondary dynamic negative pressure perforating method |
| CN112832721A (en) * | 2021-01-10 | 2021-05-25 | 大庆金祥寓科技有限公司 | Composite perforating process for old well reconstruction |
-
2013
- 2013-09-06 CN CN201320554318.5U patent/CN203420688U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847315A (en) * | 2015-03-25 | 2015-08-19 | 大庆红祥寓科技有限公司 | Expansion composite perforating gun |
| CN106050193A (en) * | 2016-08-02 | 2016-10-26 | 中国科学技术大学 | Liquid injection pressurization secondary dynamic negative pressure perforating method |
| CN112832721A (en) * | 2021-01-10 | 2021-05-25 | 大庆金祥寓科技有限公司 | Composite perforating process for old well reconstruction |
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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: 20140205 |