CN206114921U - A swash and shake device for neritic area seismic prospecting - Google Patents
A swash and shake device for neritic area seismic prospecting Download PDFInfo
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- CN206114921U CN206114921U CN201621108949.4U CN201621108949U CN206114921U CN 206114921 U CN206114921 U CN 206114921U CN 201621108949 U CN201621108949 U CN 201621108949U CN 206114921 U CN206114921 U CN 206114921U
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Abstract
The utility model discloses a swash and shake device for neritic area seismic prospecting, ship body connected on form through the tow -cable and the ocean. It is relevant that this seismic source pulls the position by the hull in marine position to a certain extent. A method of a swash and shake device for neritic area seismic prospecting reaches the main seismic source state detecting system of including, spatial position control system, the air gun array swashs shake control system and the sharp device that shakes is operated. Swash to shake the device through this, can realize that it sets for to swash the spatial position who shakes the device in the sea water, can realize from top to bottom the automated control of 6 orientations all around, and then obtain a sharp shake point position that calibration is true according to design needs, simultaneously, the interval control of air gun can be realized to the air gun array of adoption rotation type, cooperate the air gun energy with the difference, but in certain extent realizes different forms's sharp shake effect. The decipher is synthesized to seismographic record through many spatial position and sharp shake form, can realize that the extra large calibration of geologic body down really surveys.
Description
Technical field
This utility model is related to a kind of shock excitation device for neritic area seismic prospecting.
Background technology
Seismic prospecting refers to the difference using dielectric resilient in the range of space exploration and density, by observing and analyzing artificial
The seismic wave that earthquake is produced infers the property of subterranean strata and the geophysical exploration method of form in the propagation law of underground.
Seismic prospecting is the important means of exploration oil and gas resource before probing, in coalfield and engineering geologic investigation, areal geology
The aspect such as research and earth's crust research, is also used widely.Focus is the important component part of seismic exploration technology, is to produce ground
The source of shake signal.The signal quality of focus is closely related with seismic exploration effect, directly decides marine seismic prospectiong bottom
Penetration depth and resolution.
Li Che exists《Beach shallow sea seismic prospecting current situation research》Point out in article, the shake of current neritic area seismic prospecting
Mainly there are dynamite source, spark source and air gun source in source.In the seawater though explosion time produces preferable bubble effect to explosive
Should, but dynamite source is dangerous, low production efficiency, although patent《Dynamite source source drive dynamic control device and control method》
(application number：201410806723.0) there is provided a kind of dynamite source source drive dynamic control device, to improve dynamite source earthquake
The efficiency of construction of exploration, improves earthquake data quality, and significantly decreases the labor intensity of staff, easily using existing
Equipment application dynamite source source actuation techniques, but Cui Yi etc. exists《Oil seismic exploration is to marine organisms and the shadow of marine environment
Ring research》In point out in seismic prospecting, the shock wave that dynamite source is produced can have the even lethal effect of infringement to marine organisms,
And propose in marine seismic prospectiong work, dynamite source progressively can be damaged lighter non-explosive source and be replaced to marine organisms
Generation, such as spark source, air gun.
Pei Yanliang is in article《Marine engineering seismic sources and its applied research》Elaborate the work of spark source
Principle, electrode and earth polar are placed in sea water, and moment loads the voltage of thousand of to up to ten thousand volts between electrode and earth polar, produces non-
The electric current of Chang Qiang great.But spark source is more heavy, malfunction, while in the powerful electricity produced by the moment of electric discharge
Stream has larger threat, source wavelet poor repeatability, as technology constantly improves to staff and living marine resources
Spark seismic source is progressively substituted by rifle focus.
At present very perfect stage has been arrived in the development of air gun source, and is progressively improved, such as patent《A kind of air gun shake
Source》(application number：201010160248.6) air chamber and shuttle valve cavity geometry of air gun source are changed, can be fast after exciting air gun
Speed forms main pulse, and air gun excitation energy is increased as far as possible, improves the exciting characteristic of air gun.But its intrinsic wavelet frequency spectrum
Relatively low, construction is more difficult, is not appropriate for the needs of the high rate engineering geological survey respectively in shallow sea.
At present controlled source becomes a kind of new type's source of shallow water seismic, controlled source by electrohydraulic servo system to
Frequency is controllable for underground transmission, the accurate linearly or nonlinearly sweep sine of phase place, its signal be capable of achieving frequency reducing, etc. frequency, liter
Frequency is scanned.Reach the clouds etc.《Application prospect and case study of the controlled source in seismic prospecting》By to international controllable shake in text
Source technology application and development trend are analyzed, it is believed that no matter from the angle of the angle of economic benefit or environmental protection and safety, can
Control focus will necessarily become following domestic main seismic exploration seismic source and be used widely.
Controlled source has the characteristics that：(1) seismic signal produced by be, it is known that frequency, power output can manual control,
Data quality can be improved；(2) efficiency high, low cost；(3) can be by multiple stacking, growth frequency sweep time, multiple stage synchronization work
The mode cumlative energy of work.Although controlled source has many advantages but the depth of focus can not real-time control.
From the point of view of current technology level, air gun source there are problems that following in marine seismic prospectiong：
1. air-gun array combining form is more single, because the spacing between different air guns is R1/2, the air gun source of routine
Its combining form is more fixed, and ripple signal of initiating earthquake is more single, is easily limited in investigation depth or detection accuracy.Cause
This is badly in need of a kind of air-gun array combination that can realize that epicenter excitation energy is different with frequency so that different air gun mouth spacing can
Its increase of manual control reduces.
2. depth is uncontrollable, and existing focus is placed by the form of towing cable, and when hull is static, focus is located at down
Side, by controlling transmission, pulls focus so as to depth change, when formula is naturally drooped, the impact because of ocean current makes
It can not keep stable locus, there is larger difference between its depth value and actual value.Being badly in need of one kind can be in sea
The lower technical method and device for realizing its locus of remotely control.
3. automaticity is relatively low, and use is more clumsy, and the raising and lowering of focus is not easily controlled, it is difficult to be accurate to up to finger
Fixed locus.Inefficiency, is not suitable for the multiple earthquake detection test of a small range different spatial.It is badly in need of a kind of
Quickly realize that different spatial pinpoints the device of earthquake-wave-exciting.
Utility model content
This utility model is in order to solve the above problems, it is proposed that a kind of shock excitation device for neritic area seismic prospecting, this
Utility model can realize the locus setting of shock excitation device in sea water, can realize up and down all around 6 according to design needs
The Automated condtrol in individual direction, and then obtain an accurate position that impulses；Meanwhile, using revolving air-gun array,
The spacing control of air gun can be realized, is coordinated with different air gun energy, can within the specific limits realize impulsing for multi-form
Effect.By many locus and the earthquake record Integrated Interpretation of the form that impulses, more accurately detecting for the lower geologic body in sea is capable of achieving.
To achieve these goals, this utility model is adopted the following technical scheme that：
A kind of shock excitation device for neritic area seismic prospecting, including central control system, focus condition detecting system, sky
Between position control system and air-gun array impulse control system, wherein：
The locus control system, including a housing, housing outer is evenly arranged with multiple steam turbines, by control
The running status of steam turbine is maintaining position of the housing in water in horizontal direction；Air bin and water storage are provided with the housing
The governor motion for changing its volume or moisture storage capacity is provided with storehouse, the air bin and water storehouse, to change housing in Vertical Square
Position upwards；
The focus condition detecting system is arranged on housing, detects the hydraulic pressure of water environment residing for the housing, current letter
Breath；
The air-gun array impulses control system, including being nested in enclosure interior and air gun mouth is arranged at many of housing bottom
What individual air gun and control air gun worked excites controller, described to excite the startup that controller passes through control air gun individual with input
Number, carries out impulsing for multi-form in water；
The central control system receives and transmits the data of focus condition detecting system collection and according to the data of collection
Control air-gun array impulses control system, the work of locus control system.
The focus condition detecting system, including water state detector unit, specifically include for detecting water ring residing for housing
The current meter and the water thermometer of water temperature of the flow rate of water flow size under the hydraulic pressure gauge of the water pressures under border, the residing water environment of detection.
The focus condition detecting system, also including the gyroscope for being arranged on housing tip, for detecting the inclination of housing
Angle.
The locus control system, also including several ventholes for being arranged at housing upper end, is arranged in venthole
Have a venthole ball valve, the venthole connects air bin, by controlling the state of venthole ball valve to control air bin in air
Amount size.
The governor motion is traverse, and the traverse is arranged between air bin and water storehouse, and water storehouse
The upper end of housing is arranged at, is connected with sea water by being arranged at the water hole of housing tip, by the position for adjusting traverse,
Change the size of air bin and water storehouse, and then change the buoyancy of shock excitation device.
The air-gun array impulses control system, also includes applying stressed high pressure gas storehouse, adjusting air gun angle to air gun
Air gun mouth position controller and the inlet control mechanism that is transported to the gas in high pressure gas storehouse in air gun.
The outer that the middle setting of the air gun mouth has spherical rotary apparatuss, the air gun mouth is provided with fixture, described
Anchoring is connected with fixture, the state that air gun mouth position controller passes through control anchoring makes air gun around spherical
Rotary apparatuss rotate, then complete air gun rotation after fixture air gun position is fixed.
The air gun mouth is provided with sealing ring with the junction of housing.
The high pressure gas storehouse is connected by trachea with extraneous acquisition vessel, and sealing device is arranged at trachea and cage connection.
The central control system is connected by cable with the controller in acquisition vessel.
Based on the method for work of above-mentioned shock excitation device, following steps are specifically included：
(1) angle of inclination of shock excitation device is detected, current depth is calculated according to the hydraulic pressure for measuring；
(2) according to the depth data and position of orientation parameter of setting, steam turbine state is controlled, changes air bin and water storehouse
The proportion of the volume of middle air and water, makes shock excitation device reach appointed place；
(3) by impulse form and the intensity that need to simulate, the angle of each air gun and fixed, startup air gun are adjusted, it is complete
Into blowing out, once impulsed.
In the step (2), when shock excitation device needs to change orientation or depth, locus control system sends instruction
To on turbine controller, steam turbine is started working, and by the state and efficiency that control each steam turbine, adjusts exciting device
Level orientation position, if exciting device depth needs to change, changes venthole ball valve, while moving traverse, changes empty
The size and moisture storage capacity of gas storehouse and water storehouse, changes buoyancy, changes the depth of shock excitation device.
In the step (3), air gun mouth position controller adjusts the angle of air gun by control anchoring, and adjustment is finished
Afterwards air gun is fixed by fixture, after each air gun mouth angle adjustment is finished, acquisition vessel is by connecting shock excitation device
Trachea gases at high pressure are input in the high pressure gas storehouse of shock excitation device, by air gun Intaker controller by the height in high pressure gas storehouse
Body of calming the anger is transported in air gun.
The beneficial effects of the utility model are：
(1) fix for air-gun array combining form, the more single problem of earthquake-wave-exciting form, it is proposed that adopt four
Individual air gun is combined, and realizes the control of air gun mouth spacing and air gun excitation energy, by remotely control, setting air gun mouth side
To, spacing and emitted energy, it is capable of achieving different-energy and excites with the seismic wave of frequency, by the combined detection of differently focus,
The positioning of achievable different depth geological interface.
(2) for the uncontrollable problem of the existing depth of focus, this utility model adjusts air bin and water storage by automatization
The ratio in storehouse, realizes real time remote and adjusts exciting device depth location in the seawater, and in addition this utility model also adopts 4
Steam turbine, it is possible to achieve one accurate position that impulses of the Automated condtrol in 4 directions, and then acquisition all around；This
Utility model working environment is no longer influenced by the headway of acquisition vessel and affects the environment of acquisition vessel navigation to limit, in acquisition vessel
The position of remote real_time control focus can be realized in certain limit.
(3) it is relatively low for existing focus automaticity, more clumsy, the problem that raising and lowering is not easily controlled is used,
This utility model adopts up and down the Automated condtrol in 6 directions all around, and can be rapid after work is once completed
Front one action position is returned to, is that next task is ready, for the multiple earthquake of a small range different spatial is visited
Test tests quite effective, and work efficiency is greatly improved, cost-effective.
Description of the drawings
Fig. 1 is used for the shock excitation device schematic diagram of neritic area seismic prospecting；
Fig. 2 is used for the shock excitation device ground plan of neritic area seismic prospecting；
Fig. 3 is used for the shock excitation device top view of neritic area seismic prospecting；
Fig. 4 is used for the shock excitation device side view of neritic area seismic prospecting；
Fig. 5 is used for the shock excitation device profile of neritic area seismic prospecting；
The schematic diagram of Fig. 6 air guns；
Wherein, 1. steam turbine, 2. air gun mouth, 3. rubber seal, 4. venthole, 5. water hole, 6. cable and trachea enter
Mouth sealing device, 7. gyroscope, 8. water state detector, 9. cable and trachea, 10. water storehouse, 11. traverses, 12. go out
Pore ball valve, 13. cables and air pipe connector, 14. high pressure gas storehouses, 15. vibration exciter locus control systems, 16. is central
Controller, 17. air guns, 18. air guns excite controller, 19. turbine controllers, 20. air gun Intaker controllers, and 21. is spherical
Rotary apparatuss, 22. air gun mouth position controllers, 23. anchorings, 24. spherical rotary apparatuss, 25. fixtures, 26. air bins.
Specific embodiment：
Below in conjunction with the accompanying drawings the utility model is described in further detail with embodiment.
It is illustrated in figure 1 a kind of shock excitation device schematic diagram for neritic area seismic prospecting.
A kind of shock excitation device for neritic area seismic prospecting, the device is connected by the form of towing cable with ocean upper hull
Connect.It is relevant that the focus pulls position by hull to a certain extent in marine position.As illustrated, a kind of for neritic area ground
The shock excitation device and method of seismic exploration mainly includes that focus condition detecting system, locus control system, air-gun array impulse
Control system and shock excitation device operational approach.
As shown in figure 4, a kind of focus condition detecting system, mainly includes gyroscope 7 and two parts group of water state detector 8
Into, wherein, gyroscope 7 is installed on the front of shock excitation device, in the top of steam turbine, is mainly used to monitor the inclination of shock excitation device
Angle；The water state detector 8 includes hydraulic pressure gauge, current meter and water thermometer.Hydraulic pressure gauge is used for water environment residing for detecting instrument
Under water pressures, can pass through calculate obtain the instrument residing for depth of water situation；Current meter is used for water environment residing for detecting instrument
Under flow rate of water flow size, according to change in flow situation, instrument detection case is changed in real time.
As shown in figure 5, a kind of locus control system, mainly includes venthole 4, water hole 5, water storehouse 10 slides
Dividing plate 11, venthole ball valve 12, air bin 26 and steam turbine 1.Wherein venthole 4, water hole 5 and venthole ball valve 12 are located at
The top of whole device, water storehouse 10, traverse 11 and air bin 26 are located at the middle and upper part of whole device, are slided by arranging
The position of dynamic dividing plate 11 can control the depth location of whole device, and water hole 5 is mainly used to control the water yield in water storehouse 10
Size, by controlling the state of venthole ball valve 12 the hollow tolerance size of control air bin is reached.Steam turbine 1 is entirely filling
4 are had in putting, on four faces all around, by controlling the open and close state of four steam turbine control is reached
Position of the whole device in space all around 4 directions.
As shown in Fig. 2, Fig. 6, a kind of air-gun array impulses control system, mainly includes air gun mouth 2, rubber seal 3, its
Middle air gun mouth 2 is located at the bottom of whole device, and totally 4, rubber seal 3 is used for isolating air gun and sea water, air gun direction controlling
Principle is shown in Fig. 6, mainly includes air gun mouth position controller 22, anchoring 23, spherical rotary apparatuss 24 and fixture 25, leads to
The state for crossing the control anchoring 23 of air gun mouth position controller 22 rotates so as to reach air gun around spherical rotary apparatuss 24, then
Completing fixture 25 after air gun rotation can fix air gun position.
A kind of shock excitation device for neritic area seismic prospecting, comprises the following steps：
(1) this device carries out information gathering by the way of neritic area is connected with ship and is towed using hawser, such as schemes
1.According to the design requirement and ambient conditions of shallow sea detection, investigation depth data and position of orientation parameter are wanted in acquisition；
(2) focus condition detecting system detects the angle of inclination of this device by gyroscope 7, by horizon detector 8
Hydraulic pressure gauge real-time detection apparatus residing for pressure state, depth value is scaled by calculating, and then residing for determining device
Sea water advanced, the speed and water temperature condition of current meter and water thermometer real time monitoring apparatus provide basic data for the detection of this device；
(3) according to required depth data and position of orientation parameter, after designated area is reached, by being respectively started
4 steam turbines 1 on device, carry out the accurate adjustment of position.By depth residing for hydraulic pressure gauge real-time detection apparatus, using air
Depth location in storehouse 26 and water storehouse 10 residing for this device of the specific gravity control of volume of air and water.When device needs change side
When position or depth, vibration exciter locus control system 15 is issued instructions on turbine controller 19, and steam turbine 1 starts work
Make, control device is moved toward contrary direction, 4 steam turbines constantly work, adjust the position of orientation of shock excitation device.If impulsing dress
Putting depth needs to reduce, and vibration exciter locus control system 15 sends to venthole ball valve 12 and instructs, and venthole 4 is opened, empty
Air is discharged in gas storehouse, and air bin volume reduces, the slide downward of traverse 11, and the volume of water storehouse 11 increase, sea water passed through
Water hole 5 is entered in water storehouse 10, and buoyancy reduces, and shock excitation device is sunk.When device depth needs to raise, vibration exciter space bit
Put control system 15 and send instruction, venthole ball valve 12 is closed, the air air inlet storehouse 26 in high pressure gas storehouse, it is empty
The volume of gas storehouse 26 increases, and moves on traverse 11, and the volume of sump 10 reduces, and the sea water in sump 10 discharges storehouse by water hole 5
Outward, device buoyancy increases, and whole shock excitation device is upper in the seawater to move；
(4) after device depth and direction setting are good, staff sends instruction in acquisition vessel, and signal passes through cable
Line 9 is transferred in shock excitation device, and the central controller 16 in shock excitation device is received after signal, sends commands to air gun mouth side
On level controller 22, air gun mouth position controller 22 adjusts the angle of air gun by control anchoring 23, after adjustment is finished
Air gun is fixed by fixture 25.After 4 angle adjustment of air gun mouth 2 are finished, acquisition vessel is by connection shock excitation device
Trachea 9 is input into gases at high pressure in the high pressure gas storehouse 14 of shock excitation device, by air gun Intaker controller 20 by high pressure gas storehouse 14
In gases at high pressure be transported in air gun 17；
(5) it is all it is ready after, staff sends instruction in acquisition vessel, and 4 air guns start simultaneously, and impulse dress
Put and complete once to blow out；
(6) there is larger recoil when working due to air gun, when shock excitation device completes one action, original position can be deviateed
Put, now this shock excitation device can pass through the parameter for setting before, in focus condition detecting system and locus control system
Cooperation under return to origin-location.
It is not new to this practicality although the above-mentioned accompanying drawing that combines is described to specific embodiment of the present utility model
The restriction of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Various modifications or deform still in protection model of the present utility model that field technique personnel make by need not paying creative work
Within enclosing.
Claims (7)
1. a kind of shock excitation device for neritic area seismic prospecting, is characterized in that：Including central control system, focus state-detection
System, locus control system and air-gun array impulse control system, wherein：
The locus control system, including a housing, housing outer is evenly arranged with multiple steam turbines, by controlling steamer
The running status of machine is maintaining position of the housing in water in horizontal direction；Air bin and water storehouse are provided with the housing,
The governor motion for changing its volume or moisture storage capacity is provided with the air bin and water storehouse, to change housing in vertical direction
Position；
The focus condition detecting system is arranged on housing, detects hydraulic pressure, the flow information of water of water environment residing for the housing；
The air-gun array impulses control system, including being nested in enclosure interior and air gun mouth is arranged at multiple gas of housing bottom
What rifle and control air gun worked excites controller, described to excite the startup that controller passes through control air gun and input number,
Impulsing for multi-form is carried out in water；
The central control system receives and transmits the data of focus condition detecting system collection and according to the Data Control of collection
Air-gun array impulses control system, the work of locus control system.
2. a kind of shock excitation device for neritic area seismic prospecting as claimed in claim 1, is characterized in that：The focus state
Detecting system, including water state detector unit, the hydraulic pressure of the water pressures under specifically including for detecting water environment residing for housing
The current meter and the water thermometer of water temperature of the flow rate of water flow size under meter, the residing water environment of detection.
3. a kind of shock excitation device for neritic area seismic prospecting as claimed in claim 1, is characterized in that：The focus state
Detecting system, also including the gyroscope for being arranged on housing tip, for detecting the angle of inclination of housing.
4. a kind of shock excitation device for neritic area seismic prospecting as claimed in claim 1, is characterized in that：The locus
Control system, also including several ventholes for being arranged at housing upper end, is provided with venthole ball valve, the outlet in venthole
Hole connects air bin, and by controlling the state of venthole ball valve the hollow tolerance size of air bin is controlled.
5. a kind of shock excitation device for neritic area seismic prospecting as claimed in claim 1, is characterized in that：The governor motion
For traverse, the traverse is arranged between air bin and water storehouse, and water storehouse is arranged at the upper end of housing, passes through
The water hole for being arranged at housing tip is connected with sea water, by the position for adjusting traverse, changes air bin and water storehouse
Size, and then change the buoyancy of shock excitation device.
6. a kind of shock excitation device for neritic area seismic prospecting as claimed in claim 1, is characterized in that：The air-gun array
Impulse control system, also include to air gun apply stressed high pressure gas storehouse, adjust air gun angle air gun mouth position controller with
And the inlet control mechanism being transported to the gas in high pressure gas storehouse in air gun.
7. a kind of shock excitation device for neritic area seismic prospecting as claimed in claim 1, is characterized in that：The air gun mouth
The outer that middle setting has spherical rotary apparatuss, the air gun mouth is provided with fixture, and bracing wire dress is connected with the fixture
Put, the state that air gun mouth position controller passes through control anchoring makes air gun rotate around spherical rotary apparatuss, then completes gas
Fixture fixes air gun position after rifle rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621108949.4U CN206114921U (en) | 2016-10-10 | 2016-10-10 | A swash and shake device for neritic area seismic prospecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621108949.4U CN206114921U (en) | 2016-10-10 | 2016-10-10 | A swash and shake device for neritic area seismic prospecting |
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| Publication Number | Publication Date |
|---|---|
| CN206114921U true CN206114921U (en) | 2017-04-19 |
Family
ID=58529053
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| CN201621108949.4U Expired - Fee Related CN206114921U (en) | 2016-10-10 | 2016-10-10 | A swash and shake device for neritic area seismic prospecting |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405630A (en) * | 2016-10-10 | 2017-02-15 | 中国电建集团华东勘测设计研究院有限公司 | Actuating shock device and method for neritic region seismic exploration |
| CN106980138A (en) * | 2017-05-06 | 2017-07-25 | 中国海洋大学 | Ocean high-resolution system vertical energy combination spark source |
| CN107064999A (en) * | 2017-03-10 | 2017-08-18 | 中国电建集团华东勘测设计研究院有限公司 | A kind of shock excitation device and method for neritic area seismic prospecting |
-
2016
- 2016-10-10 CN CN201621108949.4U patent/CN206114921U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405630A (en) * | 2016-10-10 | 2017-02-15 | 中国电建集团华东勘测设计研究院有限公司 | Actuating shock device and method for neritic region seismic exploration |
| CN106405630B (en) * | 2016-10-10 | 2019-06-11 | 中国电建集团华东勘测设计研究院有限公司 | A kind of shock excitation device and method for neritic area seismic prospecting |
| CN107064999A (en) * | 2017-03-10 | 2017-08-18 | 中国电建集团华东勘测设计研究院有限公司 | A kind of shock excitation device and method for neritic area seismic prospecting |
| CN106980138A (en) * | 2017-05-06 | 2017-07-25 | 中国海洋大学 | Ocean high-resolution system vertical energy combination spark source |
| CN106980138B (en) * | 2017-05-06 | 2023-08-04 | 中国海洋大学 | Marine high-resolution stereoscopic vertical energy combined electric spark seismic source |
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