CN2453135Y - Oil well perforating gun tail sounding device - Google Patents
Oil well perforating gun tail sounding device Download PDFInfo
- Publication number
- CN2453135Y CN2453135Y CN 00250509 CN00250509U CN2453135Y CN 2453135 Y CN2453135 Y CN 2453135Y CN 00250509 CN00250509 CN 00250509 CN 00250509 U CN00250509 U CN 00250509U CN 2453135 Y CN2453135 Y CN 2453135Y
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- CN
- China
- Prior art keywords
- transaudient
- housing
- sounding device
- sound
- oil well
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an oil well perforating gun tail sounding device, which is characterized in that the upper end of a sound conveying casing is a connecting end sealed with a perforating gun tail; the inside of the sound conveying casing at the lower part of the connecting end is a hollow chamber, a sealed body filled with gunpowder is arranged in the hollow chamber in a suspended way, and thus a gap is formed between the sealed body and the inner wall of the sound conveying casing; the sound conveying casing has an upwards inclined sound conveying groove and a pressure discharging hole communicated with the hollow chamber, and thus, explosion energy can be effectively converted into sound energy, and the sound can be heard in deep wells having the depth of over 4000 meters; as explosion waves are rapidly released through the pressure discharging hole, the sounding device can be prevented from being destroyed by explosion to cause objects to fall in oil wells.
Description
The utility model is a kind of oil well perforation rifle gun breech sounding device.
In the oil and gas exploitation process, generally speaking, oil tube transmission perforation rifle string is long, and the rifle number is many, for judging correctly that whether whole rifle string detonates, and generally adopts the coda signal flare to judge both at home and abroad when the perforating job.Ground can detect a voice signal when perforating gun was ignited, and behind the certain hour, the coda bullet sends a signal more at interval, by monitoring the coda signal, judges whether whole rifle string detonates fully.During coda bullet operate as normal, after the detonation, energy is in the tail end piston, by piston slap afterbody sounding in metal shell for main charge.But can be transformed in the acoustic energy process in blast, the explosive force major part acts in the metal shell, lost most of energy, the transaudient weak effect of this kind coda bullet, in deep-well (＞3000m), monitor less than sound on ground, if increase dose, can not control detonation pressure, can blow up body again and junk phenomenon in the well occur.For strengthening transaudient effect, people have carried out structural change, offered the transaudient groove of sound transmission aperture and level at coda bullet bottom pedestal, cancelled piston, the high detonation pressure major part that main charge produces after the metal shell implode acts in the metal shell, small part is blown afterbody, acts in the coda bullet pedestal cavity, and the transaudient groove by sound transmission aperture and level is discharged into whole annular space again.Because the concentration of energy of explosion wave is bigger to the body infringement in the weak link that pedestal is connected with body, the blast that discharges in the body can greatly weaken, this structure in shallow well (＜1500m) since the well killing fluid height low, it is less to act on coda bullet external pressure, coda bullet explosion time, mechanical part is produced bigger detonation pressure, fall into well after causing body and pedestal destroyed easily, and in deep-well (＞3000m), explosion energy can not be utilized effectively, transaudient effect is unsatisfactory, and ground monitoring is subjected to certain restriction in the use less than sound.In a word, existing coda bullet well is not converted into acoustic energy with explosion energy, has limited the generation effect of coda bullet.
The purpose of this utility model is to provide that a kind of explosion energy can be better is converted into acoustic energy, effective oil well perforation rifle gun breech sounding device takes place.
The utility model is achieved in that oil well perforation rifle gun breech sounding device, be to constitute by transaudient housing, main charge core, the upper end of transaudient housing is the link that is tightly connected with the perforating gun gun breech, the main charge core is contained in the thin-wall metal seal, in the transaudient housing of link bottom is columniform cavity, the powder charge seal of strip is arranged in the cavity by link is unsettled, and and the inwall of transaudient housing between form the gap, have the transaudient groove on being tilted to of being communicated with cavity on the transaudient housing.
Described transaudient groove can be arranged on the transaudient housing with the corresponding cavity of main charge core top.
Also can have the relief hole that is communicated with cavity on the described transaudient housing.
The utility model is because with in the unsettled cavity that is arranged at transaudient housing of main charge core, have the transaudient groove that is tilted on the transaudient housing, thereby make the more effective acoustic energy that changes into of explosion energy, form sound wave and to the well head transmission, thereby all can hear sound at the deep-well more than 4000 meters, the relief hole that has on the transaudient in addition housing, the explosion wave that main charge core blast back is formed is able to rapid release, sounding device is blown up and is caused junk in the well.
Below in conjunction with embodiment the utility model is described in detail:
Fig. 1 is a sounding device structural representation of the present utility model.
With reference to figure 1, oil well perforation rifle gun breech sounding device is by transaudient housing 1, main charge core 2 constitutes, the upper end of transaudient housing 1 is the link that is tightly connected with the perforating gun gun breech, main charge core 2 is contained in the thin-wall metal seal 3, in the transaudient housing 1 of link bottom is columniform cavity 4, the powder charge seal 3 of strip is arranged in the cavity 4 by link is unsettled, and and the inwall of transaudient housing 1 between form the gap, have the transaudient groove 5 that is tilted to that is communicated with cavity 4 on the transaudient housing 1, described transaudient groove 5 is arranged on the transaudient housing 1 with main charge core 2 corresponding cavitys 4 tops, energy is able to best release, to reach best sounding effect, have the relief hole 6 that is communicated with cavity 4 on the described transaudient housing 1.
The transaudient housing of the utility model design has made full use of the blast energy, makes more acoustic energy be passed to well head, has reduced the infringement of explosion wave to device simultaneously.After the main charge core detonated, because the transaudient groove that is tilted to of transaudient housing design, energy was propagated to well head.The blast of this moment can more effectively change shock wave in the water upwards into, thereby when well head was monitored, the sound of the utility model sounding device was equivalent to the sound of two 3 meters rifles.In addition, after the blast of main charge core, because most of blast can discharge, the shock wave that does not pass to well head acts on transaudient inner walls, and working stress is significantly smaller than the critical failure stress of material, through test of many times, when 800 meters to 4100 meters of well depths, lamprophonia, obviously, the distortion of device external diameter is less than 2cm, the effect of shock wave only makes the housing slight deformation, can not blow up transaudient housing and cause trouble of lost tool in hole.
Claims (3)
1. oil well perforation rifle gun breech sounding device, be to constitute by transaudient housing, main charge core, the upper end of transaudient housing is the link that is tightly connected with the perforating gun gun breech, the main charge core is contained in the thin-wall metal seal, it is characterized in that: be columniform cavity in the transaudient housing of link bottom, the powder charge seal of strip is arranged in the described cavity by link is unsettled, and and the inwall of transaudient housing between form the gap, have the transaudient groove on being tilted to of being communicated with cavity on the transaudient housing.
2. oil well perforation rifle gun breech sounding device as claimed in claim 1 is characterized in that: described transaudient groove is arranged on the transaudient housing with the corresponding described cavity of main charge core top.
3. oil well perforation rifle gun breech sounding device as claimed in claim 2 is characterized in that: have the relief hole that is communicated with described cavity on the described transaudient housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00250509 CN2453135Y (en) | 2000-09-07 | 2000-09-07 | Oil well perforating gun tail sounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00250509 CN2453135Y (en) | 2000-09-07 | 2000-09-07 | Oil well perforating gun tail sounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2453135Y true CN2453135Y (en) | 2001-10-10 |
Family
ID=33608673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00250509 Expired - Fee Related CN2453135Y (en) | 2000-09-07 | 2000-09-07 | Oil well perforating gun tail sounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2453135Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818642A (en) * | 2010-04-27 | 2010-09-01 | 大连理工大学 | Sound-producing device for measuring oil well liquid level depth |
| CN103470246A (en) * | 2013-09-26 | 2013-12-25 | 吉林省三和电气系统工程有限公司 | Impact sound production device |
-
2000
- 2000-09-07 CN CN 00250509 patent/CN2453135Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818642A (en) * | 2010-04-27 | 2010-09-01 | 大连理工大学 | Sound-producing device for measuring oil well liquid level depth |
| CN101818642B (en) * | 2010-04-27 | 2012-11-07 | 大连理工大学 | Sound-producing device for measuring oil well liquid level depth |
| CN103470246A (en) * | 2013-09-26 | 2013-12-25 | 吉林省三和电气系统工程有限公司 | Impact sound production device |
| CN103470246B (en) * | 2013-09-26 | 2016-04-13 | 吉林省三和电气系统工程有限公司 | A kind of impact sounding device |
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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 |