CN201045293Y - High dense holes multilevel pulse sand carrying compound perforation device - Google Patents
High dense holes multilevel pulse sand carrying compound perforation device Download PDFInfo
- Publication number
- CN201045293Y CN201045293Y CNU2006201363427U CN200620136342U CN201045293Y CN 201045293 Y CN201045293 Y CN 201045293Y CN U2006201363427 U CNU2006201363427 U CN U2006201363427U CN 200620136342 U CN200620136342 U CN 200620136342U CN 201045293 Y CN201045293 Y CN 201045293Y
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- Prior art keywords
- synergy
- gun
- gunpowder
- perforating
- perforating gun
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- 239000004576 sand Substances 0.000 title claims abstract description 14
- 150000001875 compounds Chemical class 0.000 title description 2
- 239000003814 drug Substances 0.000 claims abstract description 13
- 239000003721 gunpowder Substances 0.000 claims description 37
- 239000000843 powder Substances 0.000 claims description 13
- 238000010304 firing Methods 0.000 claims description 8
- 238000009527 percussion Methods 0.000 claims description 6
- 230000002035 prolonged effect Effects 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 2
- 230000035515 penetration Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 10
- 238000010276 construction Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 241000209094 Oryza Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000003380 propellant Substances 0.000 description 2
- 239000004449 solid propellant Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
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- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The utility model discloses a high-density multi-stage-pulse carrying-sand extending-slot perforating system used in oil and gas wells. On the basis of a multi-stage-pulse synergy perforating system used in oil and gas wells, the first-stage synergy medicine of a synergy perforating gun is made into a strip-type soft medicine band which is spirally coiled on a medicine frame inside the synergy perforating gun, and the front of an operating pipe string is provided with a guiding head. The utility model mot only has the advantages of deep penetration of deep-penetration synergy gun perforation, high density, multi-phase gun perforation or large-diameter gun perforation, but also has the advantages that high-energy gas is strong in breaking ability, excellent in slot producing ability and able to prevent ground layer slots from being closed in prior art, thereby the utility mode has quite excellent synergy effect.
Description
Technical field
The utility model belongs to the perforating job field of oil gas well, relates generally to a kind of perforating system that oil gas is used of exploiting, and relating in particular to a kind of depth of field, to penetrate synergy perforation, high enegry gas fracturing, fracturing, high hole dense perforation be the perforating system of one.
Technical background
In order to improve the oil gas well yield, adopted the multiple technologies measure, as the early 1990s, adopt High-Energy Gas Fracturing Technology, afterwards, adopt compound technique of perforating again.Because all there is certain defective in these two technology, a kind of technology that deep penetrating perforating technology, High-Energy Gas Fracturing Technology and hydraulic fracturing technology three are organically combined has appearred again in the recent period.Chinese patent application 200610104468.0 disclosed multistage pulses enhanced perforation equpment in use for oil and gas well are exactly the depth of field synergistic perforator that to penetrate synergy perforation, high enegry gas fracturing, three kinds of construction technologies of fracturing be one.This device is on the basis of adopting sand control percussion primer and synergy perforating gun, by synergy gun breech, connector and will fire the higher secondary synergy gunpowder of speed and three grades of lower synergy gunpowder of combustion speed to the silk connector and join during the construction pipe goes here and there, and the dividing plate Time Delay Squib that is adopted can just be lighted subordinate's synergy gunpowder after a period of time behind higher level's perforating gun perforation, form a plurality of gunpowder pressure pulses thus pressure break is carried out on the stratum, the crack is constantly extended and stop the closure of formation fracture, realize the synergy purpose thus by proppant.Yet this device is in the seriation of product and satisfy on the perforation demand of special formation, still has certain deficiency.Especially show under the situation with high Kong Miyu large aperture perforating bullet, the gap reduces between bullet, can't on gap between bullet, increase synergy gunpowder dose, traditional in the construction in hole is launched in high Kong Miyu large aperture, limited to, must take another can increase the way of powder volume in the rifle in the way that adds the medicine synergist cake between bullet.
The utility model content
The technical problems to be solved in the utility model is, overcome the deficiencies in the prior art, providing a kind of depth of field to penetrate synergy perforation, high enegry gas fracturing, fracturing, high hole dense perforation is the synergistic perforator of one, be that the oil gas well is taken sand with the close multistage pulses in high hole and prolonged the seam perforating system, with the high hole dense perforation that satisfies leggy or the construction needs of large aperture perforation.
For solving the problems of the technologies described above, the utility model comprises sand control percussion primer, synergy perforating gun, synergy gun breech, connector, detonating primer, dividing plate Time Delay Squib, igniting powder column, secondary and three grades of synergy gunpowder, guide head; One-level synergy gunpowder in the described synergy perforating gun is the soft medicine band of strip and is spirally wound on the interior firing mount of synergy perforating gun that the first end of described guiding is the guiding cap, and the other end is a connecting rod; Described sand prevention percussion primer one end is connected with oil pipe and the other end is connected with described synergy perforating gun, described synergy gun breech is connected the other end of synergy perforating gun, the epimere of described connector is connected with the synergy gun breech, hypomere is connected with an end of described secondary synergy gunpowder, described detonating primer, dividing plate Time Delay Squib are packed in the endoporus of connector successively, and described igniting powder column is contained in the metal center pipe of secondary synergy gunpowder inside; One end of described three grades of synergy gunpowder is connected with the other end of described secondary synergy gunpowder, and the connecting rod of its other end and described guide head is tightly connected.
According to the utility model, the length of the soft medicine band of described strip is 500～1000mm, and width is 35～45mm, and thickness is 5～10mm.
The novel synergistic perforator that the utility model is integrated in one " deep penetration synergy perforation, high enegry gas fracturing, fracturing " in the multistage pulses enhanced perforation equpment in use for oil and gas well and high hole dense perforation.This device has merged the advantage of deep penetrating advantage and Gao Kongmi, leggy perforation or large aperture perforation in the deep penetration synergy perforation, merged that the high energy gas in the High-Energy Gas Fracturing Technology breaks that ability is strong, width generation capacity good simultaneously again and the waterpower sand fracturing in proppant can prevent the advantage of formation fracture closure.Especially one-level synergy gunpowder is wrapped on the firing mount in the synergy perforating gun with helical form, make in the high-efficient perforator the synergy powder volume quite or be higher than the dose of prior art, can produce high fracture pressure when not only having guaranteed the perforating gun perforation first time, and the helical form jet flames that is produced during the synergy powder burning, can stir the liquid in the pit shaft, make it wash the perforation tunnel repeatedly, thereby reach better synergy result.In addition, guide head can protect secondary, three grades of synergy gunpowder that normal impact does not take place in the process of going into the well.
Description of drawings
Fig. 1 is that the close multistage pulses in the high hole of the utility model is taken the construction pipe string schematic diagram that sand prolongs the seam perforating system.
Fig. 2 is that synergy gunpowder band is wrapped in schematic diagram on the firing mount in the synergy perforating gun shown in Figure 1.
Fig. 3 is that the structure of guide head shown in Figure 1 is formed schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment the utility model is described in further detail.
Sand control percussion primer 1, synergy perforating gun 2, synergy gun breech 3, connector 4, detonating primer 5, dividing plate Time Delay Squib 6, igniting powder column 7, secondary synergy gunpowder 8, three grades of synergy gunpowder 9 and guide heads 17 have mainly been comprised in the perforation construction pipe string that adopts the utility model preferred embodiment to carry out.The overall formation and the assembly relation of multistage pulses enhanced perforation equpment in use for oil and gas well are roughly the same in this preferred embodiment and the prior art.Different is: the cloth bullet quantity in (one) synergy perforating gun 2 has been increased to 20～40 hole/rice by the hole of 10～16 in the prior art/rice.Because the quantity of institute's dress perforating bullets increases in the perforating gun 2, makes that the distance between each perforating bullet reduces greatly, synergy gunpowder medicine cake is placed between the perforating bullet in the firing mount can't resembling usually again.For this reason, the utility model is made the soft medicine band of strip with one-level synergy gunpowder, label 11 promptly shown in Figure 2, and label 12 is a perforating bullet, label 13 is a firing mount.This preferred embodiment adopts the synergy perforating gun 2 of 20 hole/rice, its one-level synergy gunpowder is long 500～1000mm, about wide 35～45mm, thick 5～10mm and the medicine band 11 of fine flexibility is arranged, and the medicine band is spirally wound on the firing mount 13 with adhesive plaster and iron wire, this just makes the explosive payload of the one-level synergy gunpowder in the perforating gun 2 reach more than 1 kilogram/meter, when perforating gun 2 perforations, powder burning in the perforating gun can produce enough big formation fracture pressure, simultaneously, spirality can produce the helical form jet flames when being wrapped in one-level synergy gunpowder medicine band 11 burning on the firing mount 13, this flame can stir the liquid in the pit shaft, make liquid wash the perforation tunnel repeatedly, can reach synergy result preferably.(2) secondary synergy gunpowder 8 filling combustion speed also can be other higher propellant powder of combustion speed at 15mm/s～25mm/s or higher composite solidpropellant or the double-base powder of combustion speed; Three grades of 9 filling combustions of synergy gunpowder fast composite solidpropellant or double-base powder or other propellant powder at 5mm/s～10mm/s, secondary, three grades of synergy gunpowder 8,9 are by linking together to silk 14.(3) an amount of proppant 18 that adds in secondary synergy gunpowder 8, three grades of synergy gunpowder 9 both can be the special ceramic bead between Φ 0.5mm～Φ 1mm, also can be the diamond dust of same size size.(4) with change the band sealing function at the seal plug of metal center pipe 10 bottoms of three grades of synergy gunpowder 9 dress in the prior art and run through and prevent synergy gunpowder 8,9 and can flexible borehole wall generation normal impact and the guide head 17 (referring to Fig. 3) that play the guiding role in the process of going into the well.The main effect of guide head 17 is: sealing to three grades of synergy gunpowder 9 is realized with sealing ring 16 in its connecting rod position 15; Its guiding cap can effectively prevent secondary, three grades of synergy gunpowder 8,9 and the down-hole casing inwall generation normal impact that is out of shape in perforation pipe string is gone into the well process.
Claims (2)
1. an oil gas well is taken sand with the close multistage pulses in high hole and is prolonged the seam perforating system, comprise sand control percussion primer [1], synergy perforating gun [2], synergy gun breech [3], connector [4], detonating primer [5], dividing plate Time Delay Squib [6], igniting powder column [7], secondary and three grades of synergy gunpowder [8,9], described sand prevention percussion primer [1] one end is connected with oil pipe and the other end is connected with described synergy perforating gun [2], described synergy gun breech [3] is connected the other end of synergy perforating gun [2], the epimere of described connector [4] is connected with synergy gun breech [3], hypomere is connected with an end of described secondary synergy gunpowder [8], described detonating primer [5], dividing plate Time Delay Squib [6] is packed in the endoporus of connector [4] successively, and described igniting powder column [7] is contained in the metal center pipe [10] of secondary synergy gunpowder inside; One end of described three grades of synergy gunpowder [9] is connected with the other end of described secondary synergy gunpowder [8], it is characterized in that: comprise that also an end is the guide head [17] of connecting rod [15] for the guiding cap other end, the connecting rod [15] of described guide head [17] is tightly connected with the other end of described three grades of synergy gunpowder [9]; One-level synergy gunpowder in the described synergy perforating gun [2] is the soft medicine band [11] of strip and is spirally wound on the interior firing mount [13] of synergy perforating gun [2].
2. oil gas well according to claim 1 is taken sand with the close multistage pulses in high hole and prolonged the seam perforating system, it is characterized in that: the length of the soft medicine band of described strip [11] is 500～1000mm, and width is 35～45mm, and thickness is 5～10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201363427U CN201045293Y (en) | 2006-12-13 | 2006-12-13 | High dense holes multilevel pulse sand carrying compound perforation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201363427U CN201045293Y (en) | 2006-12-13 | 2006-12-13 | High dense holes multilevel pulse sand carrying compound perforation device |
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| Publication Number | Publication Date |
|---|---|
| CN201045293Y true CN201045293Y (en) | 2008-04-09 |
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| CNU2006201363427U Expired - Fee Related CN201045293Y (en) | 2006-12-13 | 2006-12-13 | High dense holes multilevel pulse sand carrying compound perforation device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146784A (en) * | 2011-05-23 | 2011-08-10 | 黑龙江华安民爆器材有限责任公司 | Novel ignition structure |
| CN101619654B (en) * | 2009-07-27 | 2012-06-20 | 北方斯伦贝谢油田技术（西安）有限公司 | Pulse fracturing sand injector for horizontal wells |
| CN104895543A (en) * | 2014-03-04 | 2015-09-09 | 乔瑞森南斯有限公司 | Method for extracting methane from coal beds |
| CN106639992A (en) * | 2017-03-10 | 2017-05-10 | 西安通源石油科技股份有限公司 | Special perforating gun for fracturing, special FracGun composite perforating device and method for fracturing |
| CN109025913A (en) * | 2018-09-29 | 2018-12-18 | 北京大德广源石油技术服务有限公司 | The interior compound sub-clustering perforator of blind hole |
-
2006
- 2006-12-13 CN CNU2006201363427U patent/CN201045293Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619654B (en) * | 2009-07-27 | 2012-06-20 | 北方斯伦贝谢油田技术（西安）有限公司 | Pulse fracturing sand injector for horizontal wells |
| CN102146784A (en) * | 2011-05-23 | 2011-08-10 | 黑龙江华安民爆器材有限责任公司 | Novel ignition structure |
| CN102146784B (en) * | 2011-05-23 | 2014-04-16 | 黑龙江华安民爆器材有限责任公司 | Novel ignition structure |
| CN104895543A (en) * | 2014-03-04 | 2015-09-09 | 乔瑞森南斯有限公司 | Method for extracting methane from coal beds |
| CN106639992A (en) * | 2017-03-10 | 2017-05-10 | 西安通源石油科技股份有限公司 | Special perforating gun for fracturing, special FracGun composite perforating device and method for fracturing |
| CN109025913A (en) * | 2018-09-29 | 2018-12-18 | 北京大德广源石油技术服务有限公司 | The interior compound sub-clustering perforator of blind hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |