CN203881953U - An ocean exploration air gun source - Google Patents
An ocean exploration air gun source Download PDFInfo
- Publication number
- CN203881953U CN203881953U CN201420240553.XU CN201420240553U CN203881953U CN 203881953 U CN203881953 U CN 203881953U CN 201420240553 U CN201420240553 U CN 201420240553U CN 203881953 U CN203881953 U CN 203881953U
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- Prior art keywords
- air
- storage chamber
- channel
- sleeve
- air gun
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 28
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 abstract 4
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 241000272517 Anseriformes Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000008398 formation water Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides an ocean exploration air gun source comprising an air gun body. A sleeve and an air storage chamber are disposed in the body. The upper portion of the sleeve is provided with a solenoid valve and a detector. A first channel and a fifth channel penetrate through the sleeve. An air inlet of the solenoid valve is communicated with the air storage chamber through the first channel. A signal port of the detector is communicated with the air storage chamber through the fifth channel. The air storage chamber is internally provided with a fan-shaped volume reduction block fixed to the sleeve. The upper end face of the volume reduction block blocks the first channel and the fifth channel. The ocean exploration air gun source is provided with the volume reduction block and when a piston works, water flowing into the air storage chamber can cling to the volume reduction block and does not enter the channels communicated with the solenoid valve and the detector. Therefore, the water is prevented from influencing the work of the solenoid valve and the detector and the working stability of the air gun is guaranteed.
Description
Technical field
The utility model relates to a kind of marine drilling instrument, relates in particular to a kind of seafari air gun source.
Background technology
Along with the development of marine drilling technology, the utility appliance that is applied in marine drilling operation is also constantly being weeded out the old and bring forth the new, and wherein air gun source is exactly a kind of device very widely that uses.Air gun source is to utilize pressurized air to discharge rapidly a kind of non-explosive source as power, also claims " air gun method ", in offshore shooting, is used widely.It utilizes air gun that pressure-air was sent in water in extremely short moment, forms bubble, and gas ducks in drink and expands the vibration replacing with contraction phase, causes seismic oscillation, forms air bubble.Carried out seafari and obtained related data by seismic oscillation, technician makes professional analysis by related data etc. and creeps into operation to be applied to ocean.
According to capacity, division can be divided into multiple air gun source, in the seafari operation that China carries out in the East Sea, can use the large capacity air gun of a kind of 380 cubic inches, in the time of work, there is sometimes the phenomenon of job insecurity in this air gun, the synchronization delay that is air gun changes greatly, the time interval of air gun in the time deflating big gun is unstable, sometimes even almost cannot work, study and find that causing the reason of this labile factor is in air gun, to have water through staff, water can flow into the normal work of impact in the wave detector of air gun and solenoid valve, and then also just affect the stability of air gun entirety.Propose rifle head can be raised to 15 to 20 degree and allow the defluent scheme of water in air gun in order to solve water inlet problem staff, but this scheme is in air gun work after 4 to 6 hours, or can there is continuously producing the unsettled situation of air bubble, can not tackle the problem at its root, therefore need air gun to improve, prevent the normal work of water inlet impact in wave detector and solenoid valve.
Utility model content
The technical problems to be solved in the utility model be to provide one can working stability, seafari air gun source reliably, to overcome the above-mentioned defect of prior art.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of seafari air gun source, comprise air gun body, and in described body, be provided with sleeve and air storage chamber; Described upper cartridge is provided with solenoid valve and wave detector, offer first passage and Five-channel through sleeve, the air intake opening of described solenoid valve is connected with air storage chamber by first passage, the signal port of described wave detector is connected with air storage chamber by Five-channel, in described air storage chamber, be also provided with and subtract appearance piece, described subtracting held piece and is fan-shaped, subtract to hold piece and be fixed on sleeve, described in subtract and hold the upper surface of piece and shelter from first passage and Five-channel.
Preferably, described in, subtracting appearance piece is semicircular sector.
Further, the upper surface that subtracts appearance piece described in offers annular groove.
Preferably, described in, subtracting appearance piece is fixed on sleeve by register pin.
As mentioned above, a kind of seafari air gun source of the utility model, has following beneficial effect:
The utility model is provided with and subtracts appearance piece in air storage chamber, in the time of pistons work, has water and enters air storage chamber, sticks to subtract to hold on piece and avoided entering first passage and Five-channel after water formation water smoke, has prevented that water from affecting the work of solenoid valve and wave detector; Stick to and subtract the water holding on piece and condense and be pooled in annular groove and along with the lower task of piston is discharged from air storage chamber, ensured the work efficiency of solenoid valve and wave detector, and then ensured the stability of air gun in the time of work.
Brief description of the drawings
Fig. 1 is structural drawing of the present utility model.
Fig. 2 subtracts the front elevation that holds piece in the utility model.
Fig. 3 is the vertical view of Fig. 2.
In figure: 1 body 2 sleeves
3 solenoid valve 4 wave detectors
5 inflation inlets 6 subtract appearance piece
7 start air chamber 11 air storage chambers
12 piston rod 13 pistons
14 air cavitys 15 return to air chamber
16 liberation port 61 register pins
62 annular groove 81 first passages
82 second channel 83 third channels
84 four-way 85 Five-channels
141 first port 142 second ports
Embodiment
Structure that Figure of description illustrates, ratio, size etc., all contents in order to coordinate instructions to disclose only, understand and read for person skilled in the art scholar, not in order to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, all should still drop in the scope that technology contents that the utility model discloses can contain.Simultaneously, in this instructions, quote as " on ", the term such as D score, 'fornt', 'back', " centre ", also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, changing under technology contents, when being also considered as the enforceable category of the utility model without essence.
The utility model is used for large capacity air gun source, for example 380 cubic feet or 520 cubic feet of air guns, and described capacity refers to the capacity of air storage chamber 11.As Fig. 1-Figure 3 shows that the seafari air gun source of 380 cubic feet, comprise air gun body 1, in described body 1, be provided with sleeve 2, body 1 bottom be provided with air storage chamber 11 and for air storage chamber 11 exhausts liberation port 16, described sleeve 2 tops are provided with solenoid valve 3, wave detector 4 and inflation inlet 5, offer first passage 81 through sleeve 2, second channel 82, third channel 83, four-way 84 and Five-channel 85, described sleeve 2 bottoms are fixed with piston rod 12, described piston rod 12 is provided with piston 13, the bottom outer wall of described piston 13 abuts on body 1 inwall, and then ensure the sealing of air storage chamber 11 under normal conditions, between described piston rod 12 and piston 13, be provided with and return to air chamber 15, between described piston 12 upper surfaces and sleeve 2, form and start air chamber 7, in described piston rod 12, offer air cavity 14, the first port 141 of air cavity 14 is connected with inflation inlet 5 by third channel 83, the second port one 42 of air gun 14 with return to air chamber 15 and be connected, described inflation inlet 5 is also connected with air storage chamber 11 by four-way 84.Described solenoid valve 3 comprises air intake opening and exciting port, and air intake opening is connected with air storage chamber 11 by first passage 81, and exciting port is connected with startup air chamber 7 by second channel 82.The signal port of described wave detector 4 is connected with air storage chamber 11 by Five-channel 85; In described air storage chamber 11, be also provided with to subtract and hold piece 6, described in subtract and hold piece 6 and be fan-shaped, subtract and hold piece 6 and be fixed on sleeve 2, described in subtract and hold the upper surface of piece 6 and shelter from first passage 81 and Five-channel 85.
In conjunction with Fig. 1-Fig. 3, described subtracting held piece 6 and will allow volume control volume size according to concrete air storage chamber 11, in the present embodiment, be convenient to install for convenient processing subtracts the shape of holding piece 6 simultaneously, described in subtract and hold piece 6 for semicircular sector.If will subtract hold piece 6 be designed to two and shelter from respectively first passage 81 and Five-channel 85 also passable, but be inconvenient to install.
Because can move up and down in the time that piston 13 is worked, water can enter air storage chamber 11, so discharge when the lower task and try one's best and reduce the water remaining in air storage chamber 11 in order to facilitate water, the described upper surface that subtracts appearance piece 6 offers annular groove 62, water can be pooled in annular groove 62, annular groove 62 has opening to facilitate the outflow of water subtracting the edge that holds piece 6 end faces, in the time of 13 times tasks of piston, can because the effect of air pressure by water from air storage chamber 11.
Described in the utility model subtract hold piece 6 can be fixed on sleeve 2 by modes such as welding, riveted joint or bolt connections, in the present embodiment preferably, described in subtract hold piece 6 be fixed on sleeve 2 by register pin 61.
Taking the air guns of above-mentioned 380 cubic feet as example, its principle of work and process are:
First pressurized air enters inflation inlet 5 and is entered into and returned to air chamber 15 by third channel 83, close and seal air storage chamber 11, now piston 13 bottom outer walls abut in the inwall formation sealing of body 1, are pressurized thereby while air storage chamber 11 also enters pressurized air by four-way 84.Then, solenoid valve 3 is opened and is powered, pressurized air enters air intake opening by the first pipeline 81, the exciting port work of solenoid valve, by second pipe 82, pressurized air is pressed into and starts air chamber 7, when 1 air chamber 7 enters pressurized air and is pressurized, can promote piston 13 and move downward when starting, what piston 13 was subject to moves downward rapidly from the dual thrust of returning to air chamber 15 and start in air chamber 7, in the time that piston 13 moves to liberation port 16 places and separate with body 1 inwall, pressure-air in air storage chamber 11 can explosive be discharged in water around, form acoustic pulses, produce vibration and form air bubble.Described pressure-air is assembled and is formed by a large amount of pressurized air.Finally, when in air storage chamber 11 because pressure-air is released after pressure drop, return to air chamber 11 and return by inflation inlet 5 pressurizations, on piston 13, move come back to initial position and with body 1 inwall gluing, sealing, complete single step of releasing air bubble.In the big gun of dropping a hint, the pressure in the Five-channel 85 being communicated with the signal port of wave detector 4 also can decline, and monitors the data such as the peak value of air gun and make analysis by the magnetic switch of wave detector 4.
Move downward while separating with body 1 inwall at above-mentioned piston 13, because the volume ratio of the air storage chamber 11 of large capacity air gun is larger, when discharging gases at high pressure, air gun finishes that to enter 11 this period of filling times of air storage chamber longer with new pressure-air (being pressurized air), it is slower that this moves piston 13, water can enter into air storage chamber 11, and because will drop a hint continuously big gun, it is large that pressure in air storage chamber 11 can become again, water can form because of pressure-acting water smoke, these water smokes can spread, because subtract the effect of holding piece 6, water smoke after diffusion can not directly enter into first passage 81 and Five-channel 85 and then enter solenoid valve 3 and wave detector 4, water smoke can be condensed into water droplet and stick to subtract to hold on piece 6 and collect and flow into annular groove 62, along with the big gun of dropping a hint next time, moment declines pressure in air storage chamber 11 again, because there is pressure differential, be that pressure in air storage chamber 11 is far longer than ambient pressure, so water can enter air storage chamber 11 along with gases at high pressure are drawn out of from liberation port 16 along the opening at groove 62 two ends, and then also just ensured that solenoid valve 3 and wave detector 4 are not affected by water, also just ensure the stability of air gun in the time of work, the big gun of dropping a hint that can be continuous.
Seafari air gun source also has other version; in above-described embodiment, enumerate as just example; the main inventive point of the utility model is to subtract the setting and the position that hold piece 6 and installs, and all technical schemes of blocking first passage 81 and Five-channel 85 by some apparatus structure all belong to protection domain of the present utility model.
In sum, a kind of seafari air gun source of the utility model, unstable can solve existing air gun source use time, the large problem of delay variation while easily occurring dropping a hint big gun.So, have very high value and use meaning thereby the utility model has effectively overcome practical problemss more of the prior art.
Above-mentioned embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.The utility model also has many aspects under the prerequisite without prejudice to overall thought, to improve, and all can, under spirit of the present utility model and category, can above-described embodiment be modified or be changed for person skilled in the art scholar.Therefore, have in technical field under such as and conventionally know that the knowledgeable modifies or changes not departing from all equivalences that complete under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (4)
1. a seafari air gun source, comprises air gun body (1), is provided with sleeve (2) and air storage chamber (11) in described body (1), described sleeve (2) top is provided with solenoid valve (3) and wave detector (4), offer first passage (81) and Five-channel (85) through sleeve (2), the air intake opening of described solenoid valve (3) is connected with air storage chamber (11) by first passage (81), the signal port of described wave detector (4) is connected with air storage chamber (11) by Five-channel (85), it is characterized in that: in described air storage chamber (11), be also provided with to subtract and hold piece (6), the described appearance piece (6) that subtracts is fan-shaped, subtracting appearance piece (6) is fixed on sleeve (2), the described upper surface that subtracts appearance piece (6) shelters from first passage (81) and Five-channel (85).
2. a kind of seafari air gun source according to claim 1, is characterized in that: described in subtract and hold piece (6) for semicircular sector.
3. a kind of seafari air gun source according to claim 2, is characterized in that: described in subtract hold piece (6) upper surface
Offer annular groove (62).
4. a kind of seafari air gun source according to claim 1, is characterized in that: described in subtract hold piece (6) be fixed on sleeve (2) by register pin (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420240553.XU CN203881953U (en) | 2014-05-12 | 2014-05-12 | An ocean exploration air gun source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420240553.XU CN203881953U (en) | 2014-05-12 | 2014-05-12 | An ocean exploration air gun source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203881953U true CN203881953U (en) | 2014-10-15 |
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ID=51682437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420240553.XU Expired - Lifetime CN203881953U (en) | 2014-05-12 | 2014-05-12 | An ocean exploration air gun source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203881953U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104570051A (en) * | 2015-01-29 | 2015-04-29 | 湘潭无线电有限责任公司 | High-power program-control vibrating source and method for generating vibrating source |
| CN108061915A (en) * | 2016-11-09 | 2018-05-22 | 中国石油化工股份有限公司 | A kind of air gun waveform analogy method |
| CN109100777A (en) * | 2018-10-18 | 2018-12-28 | 国家海洋局第二海洋研究所 | Frequency conversion type oceanic high air gun |
| CN112179566A (en) * | 2019-07-03 | 2021-01-05 | 中国石油化工股份有限公司 | Gun array seismic source air leakage early warning method and system for marine streamer acquisition |
| CN112526593A (en) * | 2020-10-28 | 2021-03-19 | 中国石油天然气集团有限公司 | Air gun device, air gun array device and exploration system |
-
2014
- 2014-05-12 CN CN201420240553.XU patent/CN203881953U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104570051A (en) * | 2015-01-29 | 2015-04-29 | 湘潭无线电有限责任公司 | High-power program-control vibrating source and method for generating vibrating source |
| CN108061915A (en) * | 2016-11-09 | 2018-05-22 | 中国石油化工股份有限公司 | A kind of air gun waveform analogy method |
| CN109100777A (en) * | 2018-10-18 | 2018-12-28 | 国家海洋局第二海洋研究所 | Frequency conversion type oceanic high air gun |
| CN112179566A (en) * | 2019-07-03 | 2021-01-05 | 中国石油化工股份有限公司 | Gun array seismic source air leakage early warning method and system for marine streamer acquisition |
| CN112526593A (en) * | 2020-10-28 | 2021-03-19 | 中国石油天然气集团有限公司 | Air gun device, air gun array device and exploration system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: Shanghai Marine Petroleum Bureau first marine geological survey team Co.,Ltd. Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee before: SHANGHAI OFFSHORE PETROLEUM GEOPHYSICAL Co.,Ltd. Patentee before: CHINA PETROLEUM & CHEMICAL Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |