CN2170371Y - Constant temp. gas generator without shell - Google Patents
Constant temp. gas generator without shell Download PDFInfo
- Publication number
- CN2170371Y CN2170371Y CN 93212044 CN93212044U CN2170371Y CN 2170371 Y CN2170371 Y CN 2170371Y CN 93212044 CN93212044 CN 93212044 CN 93212044 U CN93212044 U CN 93212044U CN 2170371 Y CN2170371 Y CN 2170371Y
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- gas generator
- support tube
- central support
- shell
- powder column
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Abstract
The utility model provides a constant temp. gas generator without shell, which can be used for high energy gas fracturing. The constant temp. gas generator without shell ignites an igniter in a cable end; flame ejected by the igniter gradually ignites auxiliary ignition charge blocks in a centre support pipe of a gas generator; high-temperature gas generated by burning the auxiliary ignition charge blocks passes through the centre support pipe and ignites an outer large ignition charge column in the form of radiant heat. The utility model has a safe ignition system, and can form serialized products easily. The utility model has the advantages of low cost, simple operation, practical design, no pollution to oil layers, etc.
Description
The utility model relates to a kind of normal temperature that is used for oil gas well and water injection well high enegry gas fracturing does not have the housing gasifier apparatus, the promptly a kind of igniter in large-scale powder column, outside coating, the electric shot-firing cable head, no housing gas generator that central support tube passes fire of adopting.
Existing gas generator to be adopted in the direct perforate of metal shell sidewall, radially lose heart, the structure of multistage connection, and the shell perforate reaches every meter 50～70 hole, and desire guarantees difficulty of sealing reliably, and is difficult to accomplish to open synchronously.In addition, the gunpowder imperfect combustion easily taking place and falls to play phenomenon; This structure adopts oil pipe to carry more, and ground caber directly bump ignites, and the engineering time is long, and labour intensity is big; Because the bump igniting is responsive to heat, thereby misquote the combustion phenomenon in the way of easily going into the well.
China's utility model patent discloses a kind of generator that is used for the oil gas well high-energy gas pressure break for No. 87215505, and its major advantage is: shell adopts the PVC(polyvinyl chloride) plastic conduit, cost is low, and is comparatively suitable in interior open hole well at 500m.Its weak point is: the compressive resistance of shell is low, and epoxy resin is adopted in sealing, and electrical insulation capability is poor in the liquid pit shaft is arranged, and easily seepage takes place and loses efficacy; Simultaneously, shell can not completing combustion, stays large stretch of residue in well
Another utility model patent discloses the detonation fracturing device that a kind of sheathing material is 3640 lamination stringings (a phenolic aldehyde expoxy glass stringing) for 89213979.X number, is applicable to that 3000m is with interior cased well and open hole well.But the outer cover intensity of this generator is still lower, confirms through field trial, is difficult to bear the liquid column hydrostatic pressure of 3000m, increase shell wall thickness and no doubt can improve compressive resistance, but the also corresponding increase of combustion gas energy of the back autophage that ignites; Simultaneously, its shell can not after-flame, becomes sheet to fall into shaft bottom or frame in well, stops up preforation tunnel, has not only influenced subsequent job but also contaminated oil gas-bearing formation, also may damage sleeve pipe when serious; In addition, its shell is disposable use, thereby cost is higher.
Also have a utility model patent to disclose a kind of reusable, axial pressure limiting of piston type caliber that sprays, loses heart for No. 91227960.5 and lose heart, increase the weight of anti-stamp metal-enclosed gas generator, be applicable to the cased well about 5000m and the high enegry gas fracturing of open hole well.Its weak point is: structure and ignition system complexity, operation requires high, be not easy to commercialization, and one-time investment is higher.
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of 5000m of being applicable to be not more than 120 ℃, hole diameter 5 with interior, bottom hole temperature (BHT), and " the above cased well and the normal temperature of open hole well high enegry gas fracturing do not have the housing gas generator.
The purpose of this utility model is finished in the following manner: the igniter ［ 2 ］ in land cable (not drawing among the figure) the energising shot-firing cable joint ［ 1 ］, igniting step by step flame moment of igniter ［ 2 ］ ejection, (each unit in the gas generator is called the one-level Pressure breaking bullet to Pressure breaking bullets at different levels, the two-stage Pressure breaking bullet has only drawn among the figure) the interior auxiliary magnet gunpowder piece ［ 9 ］ of central support tube ［ 8 ］, the high-temperature fuel gas that ignition charge piece ［ 9 ］ burning produces, at first heat central support tube ［ 8 ］, and with the form that the width of cloth the is penetrated heat outside large-scale powder column ［ 6 ］ that ignites, powder column ［ 6 ］ burning produces a large amount of high temperature and high pressure gas in pit shaft (not drawing among the figure), the pressure break stratum reaches well production increment, the purpose of water injection well stimulation.
Fig. 1 is the structure chart that normal temperature does not have the housing gas generator.
Below in conjunction with accompanying drawing structure of the present utility model and enforcement are described in further detail:
This gas generator mainly is made up of cable connector ［ 1 ］, igniter ［ 2 ］, baffle plate ［ 4 ］, large-scale powder column ［ 6 ］, clad ［ 7 ］, central support tube ［ 8 ］, auxiliary magnet gunpowder piece ［ 9 ］, connection pipe nipple ［ 10 ］, plug ［ 11 ］, pallet ［ 12 ］ and end cap ［ 13 ］ etc.Large-scale powder column ［ 6 ］ adopts internal diameter 25mm, two virtue-3 gunpowder of external diameter 95mm, and its length has two kinds of specifications, is respectively 500mm and 900mm.All use fluid sealant (not drawing among the figure) cementation and sealing between large-scale powder column ［ 6 ］ and central support tube ［ 8 ］ and the baffle plate ［ 4 ］, both guaranteed the integrated of baffle plate ［ 4 ］, powder column ［ 6 ］ and central support tube ［ 8 ］, can prevent that again liquid (not drawing among the figure) in the pit shaft from entering the slit between powder column ［ 6 ］ and the central support tube ［ 8 ］, and influence igniting of powder column ［ 6 ］.Central support tube ［ 8 ］, connection pipe nipple ［ 10 ］, baffle plate ［ 4 ］ and pallet ［ 12 ］ all adopt alloy duralumin material, under the high temperature when powder column ［ 6 ］ burns, all can dissolve fully, and its primary product is an alumina; Central support tube ［ 8 ］ had both played and had supported and the effect that is connected, and was again the passage that passes fire.Between the Pressure breaking bullets at different levels, all adopt screwed connection between cable connector ［ 1 ］ and plug ［ 11 ］ and the gas generator, " O " RunddichtringO ［ 5 ］ sealing.The lower end design of the last of gas generator grade Pressure breaking bullet has pallet ［ 12 ］ and end cap ［ 13 ］, and be fixed on the plug ［ 11 ］ with screw ［ 14 ］, main effect be prevent gas generator in the process of going into the well with the borehole wall (not drawing among the figure) collision and friction and damage powder column ［ 6 ］.The outside of large-scale powder column ［ 6 ］ twines with cotton tape that is soaked with epoxy resin or glass wool cloth and forms clad ［ 7 ］, both avoided powder column ［ 6 ］ directly to contact with liquid in the pit shaft, can prevent from the process of going into the well to damage with wall friction powder column ［ 6 ］ again.Auxiliary magnet gunpowder piece ［ 9 ］ is the little powder column that centre bore is arranged that forms with No. 3 or the compacting of No. 4 small-grain black powders.
The implementation process of this utility model is as follows: the auxiliary magnet gunpowder piece ［ 9 ］ of packing in the central support tube ［ 8 ］ of next stage Pressure breaking bullet earlier, again with plug ［ 11 ］, pallet ［ 12 ］ and end cap ［ 13 ］ are loaded onto successively, tighten screw ［ 14 ］, pack into step by step from bottom to top then and connect pipe nipple ［ 10 ］ and Pressure breaking bullet, and the auxiliary magnet gunpowder piece ［ 9 ］ of in the central support tube ［ 8 ］ of every grade of Pressure breaking bullet, packing into, when connecing pipe nipple ［ 10 ］, load must note loading onto " O " RunddichtringO ［ 5 ］, last toward interior load point firearm of cable head ［ 1 ］ ［ 2 ］ and spring ［ 3 ］, put " O " RunddichtringO ［ 5 ］, with pack into the upper end of upper level Pressure breaking bullet of cable head ［ 1 ］.
The utility model has compared with prior art that ignition system uniqueness, product, cost safe and reliable, that be easy to form seriation are low, easily row, oilfield technology personnel and workman are easy to grasp the advantage such as polluted reservoir not to easy construction.
Claims (7)
1, a kind of normal temperature that is used for oil gas well and water injection well high enegry gas fracturing does not have the housing gasifier apparatus, it is characterized in that igniter [2] is contained in the cable connector [1], all also seal between large-scale powder column [6] and central support tube [8] and the baffle plate [4] with the fluid sealant cementation, there is clad [7] its outside, couple together by connecting pipe nipple [10] between every grade of Pressure breaking bullet, and in the central support tube [8] of every grade of Pressure breaking bullet auxiliary magnet gunpowder piece [9] is housed, the end of next stage Pressure breaking bullet is fixed on pallet [12] and end cap [13] on the plug [11] by screw [14].
2, device according to claim 1 is characterized in that it is two virtue-3 gunpowder of 25mm, external diameter 95mm that large-scale powder column ［ 6 ］ adopts internal diameter, and its length has two specifications, is respectively 500mm and 900mm.
3, device according to claim 1, it is characterized in that central support tube ［ 8 ］, connection pipe nipple ［ 10 ］, baffle plate ［ 4 ］ and pallet ［ 12 ］ all adopt alloy duralumin material, central support tube ［ 8 ］ had both played and had supported and the effect that is connected, and was again the passage that passes fire.
4, device according to claim 1 is characterized in that between gas generator and cable connector ［ 1 ］ and the plug ［ 11 ］ and all adopts screwed connection between the Pressure breaking bullet at different levels, twice " O " RunddichtringOs ［ 5 ］ sealing.
5, device according to claim 1 is characterized in that clad ［ 7 ］ is to be entwined with cotton tape or glass wool cloth epoxy resin dipping glue.
6, device according to claim 1 is characterized in that auxiliary magnet gunpowder piece ［ 9 ］ is the little powder column that centre bore is arranged that forms with No. 3 or the compacting of No. 4 small-grain black powders.
7, device according to claim 1, what it is characterized in that end cap ［ 13 ］ employing is the nitrile rubber briquetting, by screw ［ 14 ］ pallet ［ 12 ］ and end cap ［ 13 ］ is fixed on the plug ［ 11 ］ of gas generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93212044 CN2170371Y (en) | 1993-05-12 | 1993-05-12 | Constant temp. gas generator without shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93212044 CN2170371Y (en) | 1993-05-12 | 1993-05-12 | Constant temp. gas generator without shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2170371Y true CN2170371Y (en) | 1994-06-29 |
Family
ID=33793488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93212044 Expired - Fee Related CN2170371Y (en) | 1993-05-12 | 1993-05-12 | Constant temp. gas generator without shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2170371Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006045248A1 (en) * | 2004-10-29 | 2006-05-04 | Xi'an Tongyuan Petrotech Co. Ltd | A high-energy gas fracture tool for through-tubing operation |
| CN1332120C (en) * | 2005-03-28 | 2007-08-15 | 中国兵器工业第二一三研究所 | Throwing type fracturing equipment |
| 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 |
| CN102536177A (en) * | 2012-03-21 | 2012-07-04 | 甘肃兰金民用爆炸高新技术公司 | Positive-pressure blasting device |
| CN103015936A (en) * | 2012-12-04 | 2013-04-03 | 北方斯伦贝谢油田技术（西安）有限公司 | Scattered object fracturing bomb device |
| CN112065318A (en) * | 2019-09-29 | 2020-12-11 | 中国海洋石油集团有限公司 | Energetic material rod structure resistant to high temperature and high pressure and application thereof |
| CN113979821A (en) * | 2021-11-01 | 2022-01-28 | 中国船舶重工集团公司第七一八研究所 | High-reliability multistage ignition mode |
-
1993
- 1993-05-12 CN CN 93212044 patent/CN2170371Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006045248A1 (en) * | 2004-10-29 | 2006-05-04 | Xi'an Tongyuan Petrotech Co. Ltd | A high-energy gas fracture tool for through-tubing operation |
| US7819180B2 (en) | 2004-10-29 | 2010-10-26 | Tong Oil Tools Co., Ltd. | High-energy gas fracture apparatus for through-tubing operations |
| CN1332120C (en) * | 2005-03-28 | 2007-08-15 | 中国兵器工业第二一三研究所 | Throwing type fracturing equipment |
| 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 |
| CN102536177A (en) * | 2012-03-21 | 2012-07-04 | 甘肃兰金民用爆炸高新技术公司 | Positive-pressure blasting device |
| CN102536177B (en) * | 2012-03-21 | 2013-11-13 | 甘肃兰金民用爆炸高新技术公司 | Positive-pressure blasting device |
| CN103015936A (en) * | 2012-12-04 | 2013-04-03 | 北方斯伦贝谢油田技术（西安）有限公司 | Scattered object fracturing bomb device |
| CN103015936B (en) * | 2012-12-04 | 2015-08-19 | 北方斯伦贝谢油田技术（西安）有限公司 | A kind of withered and fallen thing Pressure breaking bullet device |
| CN112065318A (en) * | 2019-09-29 | 2020-12-11 | 中国海洋石油集团有限公司 | Energetic material rod structure resistant to high temperature and high pressure and application thereof |
| CN113979821A (en) * | 2021-11-01 | 2022-01-28 | 中国船舶重工集团公司第七一八研究所 | High-reliability multistage ignition mode |
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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 |