CN205280951U - Perpendicular cable data acquisition system of pull -type ocean seismic prospecting - Google Patents
Perpendicular cable data acquisition system of pull -type ocean seismic prospecting Download PDFInfo
- Publication number
- CN205280951U CN205280951U CN201521141813.9U CN201521141813U CN205280951U CN 205280951 U CN205280951 U CN 205280951U CN 201521141813 U CN201521141813 U CN 201521141813U CN 205280951 U CN205280951 U CN 205280951U
- Authority
- CN
- China
- Prior art keywords
- cable
- tail
- section
- working zone
- vertical
- 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
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model provides a perpendicular cable data acquisition system of pull -type ocean seismic prospecting, including carrying on workboat and the perpendicular cable of pull -type ocean seismic prospecting that has the system of arousing, supplementary steel cable and cable part are drawn together to perpendicular cable wrap, cable part top -down is preceding linkage segment in proper order, first active section, tail active section and tail -to -tail linking section, linkage segment in the front, be equipped with inclinometer and pressure sensor group between the first active section, it is first, the tail active section sets gradually 8 hydrophone combinations along length direction, be equipped with extensible 8 way data packet between first active section and tail active section, be equipped with inclinometer and pressure sensor group between tail active section and the tail -to -tail linking section. The utility model discloses realize really having realized the digitization of cable by digital analog conversion on the perpendicular cable, the work depth of water is big, and when depth of water 1000m, perpendicular cable still can normally be worked, the time sampling rate is high, and the outside is equipped with supplementary steel cable, has realized the reasonable separation of function, the investigation depth is dark, through adjusting preceding linkage segment, tail -to -tail linking section, and sinking depth that can the perpendicular cable of real time control.
Description
Technical field
The data collecting system used when the utility model relates to a kind of geophysical survey, in particular to a kind of vertical cable data collecting system of towed marine seismic survey.
Background technology
Oceanic earthquake exploration data acquisition system is the important component part of offshore shooting. At present, what domestic offshore shooting system adopted is all horizontal cable (HorizonCable) or undersea cable (OceanBottomCable). In recent years, along with the progress of technology, domestic have developed some horizontal cables in high-resolution many roads, but owing to its distance sea level is nearer, the data precision obtained is lower, and its resolving power can only meet mid-deep strata or the needs of shallow engineering seismic prospecting, do not reach the requirement of high precision seismic exploration. Horizontal cable domestic at present or the operating depth of undersea cable mostly within 30m, during more than the operating depth of 30m, cable just cannot normal operation, bring great restriction to offshore shooting. At present, domestic in the detected with high accuracy in seabed also there is no good precedent carrying out. Towed marine seismic survey vertical cable data collecting system is the good approach addressed this problem.
In addition, external vertical cable system all carries out being connected use with Haiti seismograph (OceanBottomSeismometer), do not carry out separately the vertical cable of work, do not carry out pulling the vertical cable of direct-reading type of exploration by workship yet, improve job costs to a certain extent. And due to its technical monopoly, construction cost is improved greatly, domestic actual demand cannot be met.
Summary of the invention
The purpose of this utility model is to provide a kind of vertical cable data collecting system of towed marine seismic survey, to make up the deficiencies in the prior art.
The utility model is on the basis of existing activating system and difference GPS navigation, to the innovation of acquisition system especially its vertical cable part.
A kind of vertical cable data collecting system of towed marine seismic survey, comprise workship, this workship is provided with PC main control system, vertical cable control unit, difference GPS, and it is equipped with activating system, activating system comprises the focus main frame being positioned on deck and the electrode being positioned in water, and for the vertical cable that accepts the towed marine seismic survey of earthquake data, it is characterized in that described electrode cable vertical with towed marine seismic survey carries out work by workship towing, described PC main control system is received by vertical cable control unit and analyzes the data gathered by the vertical cable of towed marine seismic survey,
The vertical cable of described towed marine seismic survey comprises auxiliary wirerope and the cable section being fixed on described auxiliary wirerope by snap ring, and auxiliary wirerope is all vertical with cable section arranges, described cable section connects section before being followed successively by from top to bottom, first working zone, tail working zone and tail connect section, and it is provided with watertight joint in front connection section upper end, in front connection section, it is provided with tiltmeter and pressure transmitter group between first working zone, and it is first, tail working zone inside is provided with organizes cable more, first, tail working zone arranges nautical receiving set combination along its length successively, (this 8 road digital packets is for the treatment of front to be provided with expandable type 8 road digital packets between first working zone and tail working zone, the simulating signal that rear working zone Zhong Ge tetra-road receives), filled polyurethane solid material between described cable and nautical receiving set combination, connect at tail working zone and tail and it is provided with tiltmeter and pressure transmitter group between section 7, connecting section end at tail has titanium alloy metal joint to connect, described auxiliary wirerope is also provided with multiple card for hanging weight buckle.
The vertical cable data collecting system of above-described towed marine seismic survey, it is characterised in that nautical receiving set combination in initial and end working zone Nei Mei road adopts equidistant grade theing be made up of 16 nautical receiving sets to weigh combination, and the element interval of nautical receiving set is 0.3m, adopts being designed to of flexible strategy: 1,2,3,4,3,2,1.
The vertical cable data collecting system of above-described towed marine seismic survey, it is characterised in that also increasing between initial and end working zone and have one or more working zone, described working zone is identical with initial and end working zone structure; It is provided with 8 road digital packets between first working zone and adjacent working zone, it is provided with 8 road digital packets between tail working zone and adjacent working zone, when increase has multiple working zone, between adjacent two working zones, is also provided with 8 road digital packets; This 8 road digital packets by 56 pin cable splices respectively with 8 road nautical receiving sets combination Xia tetra-roads of the side of being located thereon, be positioned at 8 nautical receiving sets combination Shang tetra-roads, road below it and be connected, thus continuous print simulating signal is converted into discrete numerary signal, achieve the digitizing of cable, and to achieve the expansion to vertical cable.
The above-described described vertical cable data collecting system of towed marine seismic survey, it is characterized in that 8 described road digital packets and working zone are separate, the titanium alloy metal protection protector of column drawn together by 8 road numeral handbags, protective sleeve inside is provided with multiple circuit card, 8 road digital packets are connected with the working zone being located thereon lower two ends respectively by 56 pin cable splices of protective sleeve inside, the circuit card in 8 digital packets inside, roads comprises: numeral plate A, numeral plate B, earthquake data acquisition board, signal gain control making sheet, inclination data collection plates, pressure data collection plates, current data collection plates, wherein, plate B19 is for collecting the output data of the collection plates of earthquake data for numeral, and data are carried out signal gain by control signal gain control making sheet, plate A is for collecting the output data of inclination data collection plates, pressure data collection plates and current data collection plates for numeral, numeral plate A, connect without circuit between numeral plate B, but adopt parallel distributed combination, carry out the Power convert in vertical cable transmitting procedure respectively and obtain real time status information, earthquake data acquisition board is connected with the nautical receiving set combination of 4 road nautical receiving set combinations of its upper end and 4 roads of its lower end, is responsible for the analog signal sampling to every road nautical receiving set combination of transmitted and digital-to-analog conversion, outputs to electronics plate B.
Respectively there are a tiltmeter and pressure transmitter group in the first working zone top of the vertical cable of above-mentioned towed marine seismic survey with the lower end of tail working zone, it is possible to real time record cable operationally residing for depth location and the information such as attitude, maximum can sinking to the depth of water 1000 meters; And adopt high-performance deep water nautical receiving set, adopt and vertically observe mode, by adjustment have elastic before connect the length of section, it is possible to ensure at the depth of water 1000 meters of still can normal operation, can be used for military target tracking.
The vertical cable of above-mentioned towed marine seismic survey have employed auxiliary wirerope, make cable section need not adopt rigid structure and whippy structure can be adopted, when cable section is hung on auxiliary wirerope, can by the mode of cable section flexure suspensions is adjusted nautical receiving set combine between distance, such that it is able to adopt non-fixing road apart from arrangement, the flexible adjustment being convenient to realize different target, is convenient to separation ripple field. It can be separated upward traveling wave (such as reflection wave) and down going wave (such as direct wave), is also convenient to identify scattering wave, multiple reflection.
The vertical cable data collecting system of above-mentioned towed marine seismic survey, in conjunction with the numerical value of tiltmeter and pressure transmitter, it is possible to by regulating ship's speed and connect segment length, it is possible to information such as the inclination angle of the vertical cable of real-time control and the degree of depth.
The vertical cable of advantage of the present utility model: a. realizes digital-to-analog conversion, really achieves the digitizing of cable, thus make cable can reach the expansion of max number of channels under corresponding sampling rate; B. operating depth is big, and when depth of water 1000m, vertical cable cable still can normal operation; C. adopt non-fixing road apart from arrangement, it is convenient to realize the flexible adjustment of different target; D. Temporal sampling height, can reach 1/8ms, and sampling rate can be selected many: 1/8ms, 1/4ms, 1/2ms, 1ms, 2ms, 4ms; E. vertical cable outside is provided with auxiliary wirerope, it is achieved that the reasonable separation of function; F. the frequency band width of Received signal strength: 10Hz-8kHz; G. investigation depth is dark, coordinates 6000J sparker source, meets and be greater than, in the depth of water, the detection that thalassogenic sedimentation stratum is greater than 1000 meter layers by 1000 meters; H. before regulating, section, tail connection section is connected, it is possible to the sinking degree of depth of the vertical cable of control in real time.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is constructing structure schematic diagram of the present utility model.
Fig. 3 is the vertical cable overall structure schematic diagram of towed marine seismic survey of the present utility model.
Fig. 4 is the vertical cable expansion schematic diagram of towed marine seismic survey of the present utility model.
The vertical cable nautical receiving set combination structural representation of Fig. 5 towed marine seismic survey of the present utility model.
Fig. 6 is digital packets internal structure schematic diagram of the present utility model.
Wherein, 1 watertight joint, section is connected before 2, 3 pressure transmitters and tiltmeter group, 4 first working zones, 5 digital packets, 6 tail working zones, 7 tails connect section, 8 auxiliary wireropes, 9 snap rings, 10 card buttons, 11 nautical receiving set combinations, 12 nautical receiving sets, 13 cable splices, 14 signal gain control making sheet, 15 numeral plate A, 16 earthquake data acquisition boards, 17 pressure data collection platess, 18 inclination data collection platess, 19 electronics plate B, 20 current data collection platess, 21 working zones, the 22 two sections of working zones connected, 23 workships, 24pc main control system, 25 vertical cable control units, 26 difference GPS, 27 focus main frames, 28 electrodes, the 29 vertical cables of towed marine seismic survey.
Embodiment
Such as Fig. 1-3, a kind of vertical cable data collecting system of towed marine seismic survey, comprise workship 23, this workship 23 is provided with PC main control system 24, vertical cable control unit 25, difference GPS26, and it is equipped with activating system, activating system comprises the focus main frame 27 being positioned on deck and the electrode 28 being positioned in water, and for the vertical cable 29 that accepts the towed marine seismic survey of earthquake data, it is characterized in that described electrode 28 cable 29 vertical with towed marine seismic survey carries out work by workship towing, described PC main control system 24 is received by vertical cable control unit 25 and analyzes the data gathered by the vertical cable 29 of towed marine seismic survey,
The vertical cable of described towed marine seismic survey comprises auxiliary wirerope 8 and the cable section being fixed on described auxiliary wirerope 8 by snap ring 9, and auxiliary wirerope 8 is all vertical with cable section arranges, described cable section connects section 2 before being followed successively by from top to bottom, first working zone 4, tail working zone 6 and tail connect section 7, and it is provided with watertight joint 1 in front connection section 2 upper end, in front connection section 2, it is provided with tiltmeter and pressure transmitter group 3 between first working zone 4, and it is first, tail working zone 4, 6 inside are provided with organizes cable more, first, tail working zone 4, 6 arrange 8 road nautical receiving set combinations 11 along its length successively, (this 8 road digital packets 5 is for the treatment of front to be provided with expandable type 8 road digital packets 5 between first working zone 4 and tail working zone 6, the simulating signal that rear working zone Zhong Ge tetra-road receives), filled polyurethane solid material between described cable and nautical receiving set combination, connect at tail working zone 6 and tail and it is provided with tiltmeter and pressure transmitter group 3 between section 7, connecting section 7 end at tail has titanium alloy metal joint to connect, described auxiliary wirerope 8 is also provided with multiple card for hanging weight and buckles 10.
Such as Fig. 5, the equidistant power combination such as or not initial and end working zone 4,6 Nei Mei road nautical receiving set combination 11 employing is made up of 16 nautical receiving sets 12, the element interval of nautical receiving set 12 is 0.3m, adopts being designed to of flexible strategy: 1,2,3,4,3,2,1.
Such as Fig. 3, also increasing and have one or more working zone 21 between initial and end working zone 4,6, described working zone 21 is identical with initial and end working zone 4,6 structure; It is provided with 8 road digital packets 5 between first working zone 4 and adjacent working zone 21,8 road digital packets 5 it are provided with between tail working zone 6 and adjacent working zone 21, when increase has multiple working zone 21, between adjacent two working zones 21, also it is provided with 8 road digital packets 5; This 8 road digital packets 5 combines 11 Xia tetra-roads with 8 road nautical receiving sets of the side of being located thereon respectively by 56 pin cable splices, be positioned at 8 road nautical receiving sets below it combines 11 Shang tetra-roads and is connected, thus continuous print simulating signal is converted into discrete numerary signal, achieve the digitizing of cable, and to achieve the expansion to vertical cable.
Such as Fig. 6,8 described road digital packets 5 are separate with working zone, 8 road digital packets 5 comprise the titanium alloy metal protection protector of column, protective sleeve inside is provided with multiple circuit card, 8 road digital packets 5 are connected with the working zone being located thereon lower two ends respectively by 56 pin cable splices 13 of protective sleeve inside, the circuit card of 8 road digital packets 5 inside comprises: numeral plate A15, numeral plate B19, earthquake data acquisition board 16, signal gain control making sheet 14, inclination data collection plates 18, pressure data collection plates 17, current data collection plates 20; Wherein, plate B19 is for collecting the output data of the collection plates 16 of earthquake data for numeral, and data are carried out signal gain by control signal gain 14 switchboard; Plate A15 is for collecting the output data of inclination data collection plates 18, pressure data collection plates 17 and current data collection plates 20 for numeral, numeral plate A15, connect without circuit between numeral plate B19, but adopt parallel distributed combination, carry out the Power convert in vertical cable transmitting procedure respectively and obtain real time status information; Earthquake data acquisition board 16 is connected with the nautical receiving set combination of 4 road nautical receiving set combinations 11 of its upper end and 4 roads of its lower end, is responsible for the analog signal sampling to every road nautical receiving set combination of transmitted and digital-to-analog conversion, outputs to electronics plate B19.
Such as Fig. 2, electrode 27 cable 28 vertical with towed marine seismic survey carries out work by workship towing, and wherein PC main control system is received by vertical cable control unit and analyzes the data gathered by the vertical cable of towed marine seismic survey.
Such as Fig. 3, the vertical cable of towed marine seismic survey of the present utility model (8 roads can be expanded) 28 connects section 2 (at least 30m) before being divided into, first working zone 4 (at least 60m), tail working zone 6 (at least 60m), tail connects section 7 and auxiliary wirerope 8. Described working zone 4,6 is solid cable. Auxiliary wirerope 8 and cable section are fixed together by snap ring 9, and auxiliary wirerope 8 is all vertical with cable section arranges, and relatively free between the two, by adjusting snap ring 9, it is possible to realize the flexible arrangement of track pitch.
And it being provided with watertight joint 1 in front connection section 2 upper end, cable, by watertight joint 1, is carried out power supply supply and transfer by vertical cable control unit 24. Between front connection section 2, first working zone 4 and tail working zone 6, tail connect and be provided with tiltmeter and pressure transmitter group 3 between section 7, can the attitude of real time record cable and the sinking degree of depth.
Such as Fig. 5, respectively being provided with 8 road nautical receiving set combinations 11 in the first working zone 4 of the vertical cable of towed marine seismic survey of the present utility model and tail working end 4, nautical receiving set combination 11 employing 16 nautical receiving sets in every road, the arrangement mode of 16 nautical receiving sets 12 in every road nautical receiving set combination 11 is 1 successively, 2,3,4,3,2,1 equidistant do not wait power combination, the spacing of the nautical receiving set combination in every road is non-fixing road distance, with the flexible adjustment under suppressing random disturbance and realizing different target.
When using the utility model, as long as vertical cable is wrapped on winch, pc master control machine, vertical cable control unit, the vertical cable of towed marine seismic survey, explosive source are connected. During construction, work ship lowsteaming (being less than 2 joints), slowly puts into sea by vertical cable, by regulating the working zone from beginning to end two ends stretch section of cable, controls the working zone sinking degree of depth of vertical cable, maximum can sinking to depth of water 1000m. During construction operation, the earthquake reflected wave signal that vertical cable receives is converted to numerary signal through 8 road digital-to-analog conversion digital packets, transmission pc master control machine, undertaken gathering and record by it, the tiltmeter at working zone two ends and the information such as the attitude of pressure transmitter real time record cable and position, and on pc main control system, inclination angle and hydraulic pressure can be shown in real time, it is convenient to adjust flexibly ship's speed and the sinking degree of depth.
Claims (1)
1. the vertical cable data collecting system of towed marine seismic survey, comprise workship (23), this workship (23) is provided with PC main control system (24), vertical cable control unit (25), difference GPS (26), and it is equipped with activating system, activating system comprises the focus main frame (27) being positioned on deck and the electrode (28) being positioned in water, and for the vertical cable (29) that accepts the towed marine seismic survey of earthquake data
It is characterized in that described electrode (28) cable (29) vertical with towed marine seismic survey carries out work by workship towing, described PC main control system (24) is received by vertical cable control unit (25) and analyzes the data gathered by the vertical cable (29) of towed marine seismic survey;
The cable section that the vertical cable of described towed marine seismic survey comprises auxiliary wirerope (8) and is fixed on described auxiliary wirerope (8) by snap ring (9), and auxiliary wirerope (8) is all vertical with cable section arranges, described cable section connects section (2) before being followed successively by from top to bottom, first working zone (4), tail working zone (6) and tail connect section (7), and it is provided with watertight joint (1) in front connection section (2) upper end, front connection section (2), it is provided with tiltmeter and pressure transmitter group (3) between first working zone (4), and it is first, tail working zone (4, 6) inside is provided with and organizes cable more, first, tail working zone (4, 6) 8 roads nautical receiving set combination (11) are set along its length successively, it is provided with expandable type 8 road digital packets (5) between first working zone (4) and tail working zone (6), filled polyurethane solid material between described cable and nautical receiving set combination, connect at tail working zone (6) and tail and it is provided with tiltmeter and pressure transmitter group (3) between section (7), connecting section (7) end at tail has titanium alloy metal joint to connect, described auxiliary wirerope (8) is also provided with multiple card for hanging weight buckle (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521141813.9U CN205280951U (en) | 2015-12-31 | 2015-12-31 | Perpendicular cable data acquisition system of pull -type ocean seismic prospecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521141813.9U CN205280951U (en) | 2015-12-31 | 2015-12-31 | Perpendicular cable data acquisition system of pull -type ocean seismic prospecting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205280951U true CN205280951U (en) | 2016-06-01 |
Family
ID=56065514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521141813.9U Expired - Fee Related CN205280951U (en) | 2015-12-31 | 2015-12-31 | Perpendicular cable data acquisition system of pull -type ocean seismic prospecting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205280951U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510977A (en) * | 2015-12-31 | 2016-04-20 | 中国海洋大学 | Pull-type marine seismic prospecting vertical cable data acquisition system |
| CN106990431A (en) * | 2017-05-18 | 2017-07-28 | 国家***第海洋研究所 | A kind of near Sea Bottom hydrate detection system |
| CN109765618A (en) * | 2019-01-30 | 2019-05-17 | 自然资源部第二海洋研究所 | A kind of marine seismic acquisition system and method based on towing cable carrying |
-
2015
- 2015-12-31 CN CN201521141813.9U patent/CN205280951U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510977A (en) * | 2015-12-31 | 2016-04-20 | 中国海洋大学 | Pull-type marine seismic prospecting vertical cable data acquisition system |
| CN106990431A (en) * | 2017-05-18 | 2017-07-28 | 国家***第海洋研究所 | A kind of near Sea Bottom hydrate detection system |
| CN106990431B (en) * | 2017-05-18 | 2023-08-15 | 国家***第一海洋研究所 | Offshore bottom hydrate detection system |
| CN109765618A (en) * | 2019-01-30 | 2019-05-17 | 自然资源部第二海洋研究所 | A kind of marine seismic acquisition system and method based on towing cable carrying |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105510977A (en) | Pull-type marine seismic prospecting vertical cable data acquisition system | |
| CN105467453A (en) | Self-contained marine vertical cable seismic exploration data acquisition system | |
| CN205280952U (en) | Perpendicular cable of high accuracy ocean seismic prospecting | |
| CN106990431B (en) | Offshore bottom hydrate detection system | |
| CA2727439C (en) | Marine seismic acquisition with controlled streamer flaring | |
| US7221620B2 (en) | Apparatus for seismic measurements | |
| US8400871B2 (en) | Seafloor-following streamer | |
| CN205280951U (en) | Perpendicular cable data acquisition system of pull -type ocean seismic prospecting | |
| US20060256654A1 (en) | Seismic streamer receiver selection systems and methods | |
| CN102736110A (en) | Method for seismic surveying using wider lateral spacing between sources to improve efficiency | |
| CN104908890A (en) | Real-time analysis and transmission drifting buoy system for ambient sea noise profile data | |
| CN103052893A (en) | Method of deployment, method and device for seismic prospecting in an aquatic medium | |
| CN104155695B (en) | Submersible type buoy earthquake data acquisition station | |
| CN103759845A (en) | Pull-type optical fiber temperature depth profile continuous measurement system | |
| CN101661113B (en) | High-resolution multi-channel digital marine seismic streamer for ocean seismic prospecting | |
| CN205317955U (en) | From holding formula perpendicular cable seismic prospecting data acquisition system in ocean | |
| CN108146586A (en) | A kind of horizontal cable handler of offshore seismic exploration and application | |
| US20140169125A1 (en) | Seismic Data Acquisition System Comprising at Least One Towfish Tail Device Connectable to a Tail of a Towed Acoustic Linear Antenna | |
| CN101140329A (en) | System for localising and positioning towed acoustic linear antennas system | |
| CN208705490U (en) | A kind of satellite transmission submarine earthquake detection device | |
| CN201508415U (en) | HR multiple-channel digital streamer cable for marine seismic prospecting | |
| CN107728153A (en) | A kind of underwater panorama three-dimensional imaging towed body | |
| CN207096467U (en) | A kind of near Sea Bottom hydrate detection system | |
| CN201540372U (en) | High-precision marine seismic survey data acquisition system | |
| CN105222751A (en) | Based on the underwater surface distortion real-time monitoring system of Curvature Optical Fiber Sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20191231 |