CN202117644U - Secondary explosion energy-release shaped charge liner - Google Patents
Secondary explosion energy-release shaped charge liner Download PDFInfo
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- CN202117644U CN202117644U CN2011201564696U CN201120156469U CN202117644U CN 202117644 U CN202117644 U CN 202117644U CN 2011201564696 U CN2011201564696 U CN 2011201564696U CN 201120156469 U CN201120156469 U CN 201120156469U CN 202117644 U CN202117644 U CN 202117644U
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- material layer
- duct
- perforation
- cavity liner
- subsequent explosion
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Abstract
The utility model relates to a secondary explosion energy-release shaped charge liner, which comprises a perforating charge housing (1) and explosive (2). The inner wall of the shaped charge liner is provided with an energetic material layer (3) and a deep-penetration material layer (4), wherein the energetic material layer (3) is made of aluminum, cobalt and silicone dioxide by means of pressing, and the deep-penetration material layer (4) is made of tungsten, copper and bismuth by means of pressing. The secondary explosion energy-release shaped charge liner is used for secondary explosion in a perforation channel to clean the channel, so that permeability of a storage layer around the channel is improved, flow conductivity of the perforation channel is improved, and productivity of an oil well is improved.
Description
Technical field
The utility model relates to and belongs to oil field development perforating job technical field, and especially a kind of subsequent explosion is released can cavity liner.
Background technology
Use jet perforator to carry out perforating job and be still main completion mode in the petroleum exploration and development at present; After lined-cavity charge is ignited by detonating fuse; The cavity liner of perforating bullet forms metal jet at a high speed under the detonation wave effect; Penetrate perforating gun, sleeve pipe, cement sheath entering stratum, form the passage that gas stream gets into pit shaft.Cell walls, formation rock receive distortion behind the jet impulse of high temperature, high pressure, fragmentation and compacting, around the perforation tunnel, form compaction band; Experimental study is thought the about 0.64-1.27cm of this compacting tape thickness, and permeability is the 7%--20% of original permeability, has had a strong impact on the production capacity of oil well.In addition in the perforating bullet perforation procedure in the duct residual rock chip and metal dust increased formation fluid and flowed to the flow resistance of eyelet, thereby reduced the production capacity of oil well.
Summary of the invention
In order to solve the problem in the background technology; The utility model purpose provides a kind of subsequent explosion and releases the ability cavity liner; The utility model adopts subsequent explosion to release can produce subsequent explosion by cavity liner in the perforation tunnel, the duct permeability of reservoir is on every side improved in the cleaning duct; Thereby improve the flow conductivity of perforation tunnel, increase the production capacity of oil well.
The technical scheme of the utility model is: this subsequent explosion is released and can be comprised perforating bullet housing and explosive by cavity liner, and the cavity liner inwall is provided with energetic material layer and deep penetration material layer, and the energetic material layer is to be formed by aluminium, cobalt and silica compacting; The deep penetration material layer is formed by tungsten, copper and bismuth compacting.
The utlity model has following beneficial effect: after perforating bullet adopts the utility model; In jet or the jet afterbody contain aluminium or its similar hybrid metal of a certain proportion of high temperature melting state, get into behind the duct and the well liquid generation subsequent explosion that gets into subsequently.The utility model is a kind of to be at outer spraying or the compacting one deck energetic material of adopting of deep penetrating charge cavity liner, becomes a kind of composite liner; Another kind of can energetic material the adding in the metal dust of deep penetration cavity liner with certain proportion, form special cavity liner through technologies such as compacting, oven dry.Through moulds of industrial equipment subsequent explosion is released and can cavity liner to be suppressed into subsequent explosion and to release the ability perforating bullet with perforating bullet housing, explosive.Behind fuse arming test experiment initiation, under the blast pressure effect, the high speed metal jet that ability cavity liner internal layer produces is released in subsequent explosion; Penetrate sleeve pipe, cement sheath, after the penetration perforation hole duct, the outer energetic material of cavity liner forms the pestle body in rock; Follow metal jet and get into the perforation tunnel, produce strong heat release subsequent explosion reaction in several milliseconds after the duct forms, discharge a large amount of gas and heat; Near the duct pressure is increased, produce and flow to shoving of pit shaft, the compaction band in duct is washed; The rock chip and the metal dust that come off in the duct are removed from the duct, and produced the crack in cell ends; The final cleaning duct of realizing increases channel diameter, improves the target of perforation tunnel flow conductivity.
Perforating bullet assembling the becoming perforator of ability cavity liner compacting is released in this subsequent explosion; In the construction of oil field development perforation; The effect advantage shows as: energetic material gets in the perforation tunnel with the metal jet that deep penetrating charge produces simultaneously in the time of perforating job, has guaranteed that at first the key index of perforating depth does not reduce, and produces strong exothermic reaction at Millisecond in the time afterwards; Discharge a large amount of gases; Be to act directly on inside, perforation tunnel, directly the compaction band in the perforation tunnel, chip and impurity washed and returns and gush, the compaction band in duct is washed; The rock chip and the metal dust that come off in the duct are removed from the duct, and produced the crack in cell ends; The final cleaning duct of realizing increases channel diameter, and effect is higher under the therefore same energy.
Use subsequent explosion and release and to realize the purpose of cleaning perforation tunnel by cavity liner perforating bullet technology perforation, increase the volume and the permeability of perforation tunnel, improve the flow conductivity of perforation tunnel.Through on-the-spot production capacity contrast, use this technology and carry out perforation, the operation well yield is significantly risen.
Description of drawings:
Accompanying drawing 1 is the structural representation of the utility model; Accompanying drawing 2 is structural representations of individual layer cavity liner.
1-perforating bullet housing; The 2-explosive; 3-energetic material layer, 4-deep penetration material layer.
The specific embodiment:
Below in conjunction with embodiment the utility model is described further:
Shown in figure; The utility model is and DP36RDX-4 type perforating bullet housing 1 fit applications of standard, and case material is the A3 steel, and the perforating bullet of being implemented all adopts R852 explosive 2; The single-shot explosive payload is 23 grams; The two-layer compound subsequent explosion of main utility model part is released and can be comprised by cavity liner: subsequent explosion release can cavity liner energetic material layer 3 and subsequent explosion release can cavity liner deep penetration material layer 4 form, after jet bit drilling, together get into the perforation tunnel with the aluminium or similar its hybrid metal and the well liquid of high temperature melting state; Strong exothermic reaction takes place in the duct, produces subsequent explosion the perforation tunnel is directly acted on.The deep penetration material layer that the ability cavity liner is released in subsequent explosion can form the metal jet of (7000-9000 meter per second) at a high speed after perforating bullet detonates, metal jet possesses higher energy, has to wear dark performance preferably.More than the particle size diameter of all formula materials all between 20 microns to 75 microns; The energetic material layer accounts for subsequent explosion and releases about 1/3rd of ability cavity liner general thickness; The deep penetration material layer accounts for subsequent explosion and releases 2/3rds of ability cavity liner general thickness, adopts the pressing powder technology identical with common piercing bullet to carry out perforating bullet production.
Perforation is a state under the simulation well; The perforating gun of single-shot perforating bullet dress external diameter 89mm, target is a standard sandstone target, there is the thick 45# steel plate of 8mm analog casing the target upper end; Perforating gun and target upper end are apart from 10mm; Integral body is carried out in tank, carries out the duct volumetric measurement behind the perforation, vertically cuts the sandstone target afterwards open and carries out parameter measurements such as channel diameter, profile.
The subsequent explosion of two-layer compound cover is released and can be worn sandstone target tables of data 1 by perforating bullet
| The energetic material layer | Sandstone inlet channel diameter (mm) | The duct degree of depth (mm) | Duct volume (ml) | Terminal crack is described |
| 75% aluminium, 20% cobalt, 5% silica | 22.1 | 481.5 | 133 | Article 5, |
| 65% aluminium, 17% iron, 17% nickel, 1% carbon | 20.7 | 497.2 | 120 | |
| 65% aluminium, 20% tin, 10% manganese, 5% sulphur | 20.1 | 458.7 | 112 | |
| The former individual layer deep penetration cavity liner of contrast | 11.8 | 486.3 | 45 | Do not have |
Each energetic material layer bond quality content in the last table is that 70% tungsten, mass content are that 25% copper and mass content are the deep penetration layer of 5% bismuth.
The subsequent explosion of two-layer compound cover release can perforating bullet and former deep penetrating charge wear the sandstone target and compare; Sandstone target inlet channel diameter 22.1 mm of ability perforating bullet perforation are released in the subsequent explosion of two-layer compound cover; Perforation tunnel degree of depth 481.5mm, duct volume 133 ml, 5 cracks of terminal generation; The sandstone target of former deep penetrating charge perforation inlet channel diameter 11.8mm, perforation tunnel degree of depth 486.3mm, volume 45 ml in duct have the impurity of small quantities of powder shape metal or sandstone, terminal free from flaw in the duct.Therefore, the two-layer compound subsequent explosion is released can obviously increase the perforation tunnel volume behind the cavity liner perforation, produces the crack in cell ends, has improved the perforation compaction band.
The utility model also comprises and adopts above two sections of material prescription, through mix, compression moulding obtains that the individual layer subsequent explosion releases can cavity liner, as shown in Figure 2; Use with the SDP45RDX-1 type perforating bullet shell of standard; Case material is the A3 steel, and the perforating bullet of being implemented all adopts R852 explosive 2, and the single-shot explosive payload is 39 grams; Supporting external diameter 102mm perforating gun, all the other implementation conditions are the same.Below the particle size diameter of all formula materials all between 20 microns to 75 microns.
The subsequent explosion of individual layer cover is released and can be worn sandstone target tables of data 2 by perforating bullet
| The integrated secondary blast is released can cavity liner prescription sequence number | Sandstone inlet channel diameter (mm) | The duct degree of depth (mm) | Duct volume (ml) | Terminal crack is described |
| 70% tungsten, 13% aluminium, 7% bronze medal, 4% bismuth, 5% cobalt, 1% silica | 24.5 | 591.2 | 157 | |
| 65% tungsten, 11% aluminium, 7% bronze medal, 6% plumbous 5% iron, 4% tin, 2% sulphur | 23.4 | 578.3 | 144 | |
| 65% tungsten, 10% aluminium, 7% bronze medal, 6% bismuth, 6% nickel, 5% manganese, 1% carbon | 21.6 | 539.1 | 125 | |
| The former individual layer deep penetration cavity liner of contrast | 14.8 | 567.7 | 65 | Do not have |
The subsequent explosion of individual layer cover is released and can perforating bullet be worn the sandstone target with former deep penetrating charge and compare, subsequent explosion release can the perforating bullet perforation sandstone target inlet channel diameter 24.5mm, perforation tunnel degree of depth 591.2mm, duct volume 157 ml, 4 cracks of terminal generation; The sandstone target of former deep penetrating charge perforation inlet channel diameter 14.8mm, perforation tunnel degree of depth 567.7mm, volume 65 ml in duct have the impurity of small quantities of powder shape metal or sandstone, terminal free from flaw in the duct.Therefore the individual layer subsequent explosion release can cavity liner energetic material also can flow into the duct by carried as side-arm; Produce strong blast exothermic reaction in time at Millisecond afterwards; Discharge a large amount of gases, produce subsequent explosion and act directly on inside, perforation tunnel, compaction band, chip and impurity in the perforation tunnel are washed and returns gush; The rock chip and the metal dust that come off in the duct are removed from the duct, and produced the crack in cell ends; The final cleaning duct of realizing increases channel diameter, improves the purpose of perforation tunnel flow conductivity.
Claims (1)
1. the ability cavity liner is released in a subsequent explosion, comprises perforating bullet housing (1) and explosive (2), and it is characterized in that: described cavity liner inwall is provided with energetic material layer (3) and deep penetration material layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201564696U CN202117644U (en) | 2011-05-17 | 2011-05-17 | Secondary explosion energy-release shaped charge liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201564696U CN202117644U (en) | 2011-05-17 | 2011-05-17 | Secondary explosion energy-release shaped charge liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202117644U true CN202117644U (en) | 2012-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201564696U Expired - Fee Related CN202117644U (en) | 2011-05-17 | 2011-05-17 | Secondary explosion energy-release shaped charge liner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202117644U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895534A (en) * | 2015-04-10 | 2015-09-09 | 宁波圣菲机械制造有限公司 | A perforating bullet and a method of manufacturing the same |
| CN107130946A (en) * | 2017-06-02 | 2017-09-05 | 北方斯伦贝谢油田技术（西安）有限公司 | A kind of economic benefits and social benefits perforating bullet and active material containing active material layer |
-
2011
- 2011-05-17 CN CN2011201564696U patent/CN202117644U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895534A (en) * | 2015-04-10 | 2015-09-09 | 宁波圣菲机械制造有限公司 | A perforating bullet and a method of manufacturing the same |
| CN107130946A (en) * | 2017-06-02 | 2017-09-05 | 北方斯伦贝谢油田技术（西安）有限公司 | A kind of economic benefits and social benefits perforating bullet and active material containing active material layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20200517 |