CN205317955U - From holding formula perpendicular cable seismic prospecting data acquisition system in ocean - Google Patents
From holding formula perpendicular cable seismic prospecting data acquisition system in ocean Download PDFInfo
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- CN205317955U CN205317955U CN201521140446.0U CN201521140446U CN205317955U CN 205317955 U CN205317955 U CN 205317955U CN 201521140446 U CN201521140446 U CN 201521140446U CN 205317955 U CN205317955 U CN 205317955U
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Abstract
The utility model provides a from holding formula perpendicular cable seismic prospecting data acquisition system in ocean, including working ship, the PC main control system, difference GPS, arouse the system, article one, or many from holding perpendicular cable of formula ocean seismic prospecting and floater unit, draw together supplementary steel cable and cable part from holding the perpendicular cable wrap of formula ocean seismic prospecting, cable part top -down is preceding linkage segment in proper order, first active section, tail active section and tail -to -tail linking section, and the linkage segment upper end is equipped with the watertight connector in the front, linkage segment in the front, be equipped with inclinometer and pressure sensor group between the first active section, be equipped with inclinometer and pressure sensor group between tail active section and 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 perpendicular cable outside is equipped with supplementary steel cable, has realized the reasonable separation of function, sinking depth that can the perpendicular cable of real time control can (especially in complicated hydrothermal solution area) realize the unable three -dimensional imaging who realizes of traditional three -dimensional exploratory method in limited space.
Description
Technical field
The data collecting system that this utility model uses when relating to a kind of geophysical exploration, particularly to a kind of self-tolerant marine vertical cable seismic prospecting data collecting system.
Background technology
Oceanic earthquake exploration data acquisition system is the important component part of marine seismic prospectiong. At present, what domestic marine seismic survey system adopted is all horizontal cable (HorizonCable) or submarine cable (OceanBottomCable). In recent years, progress along with technology, domestic have developed some high-resolution multiple tracks horizontal cables, but owing to its distance sea level is nearer, the data precision obtained is relatively low, and its resolution 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 submarine cable are mostly within 30m, during operating depth more than 30m, cable just cannot normal operation, bring great restriction to marine seismic prospectiong. At present, carry out in the detected with high accuracy in seabed domestic but without good precedent. Marine seismic prospectiong vertical-rise cable data collecting system is the good approach solving this problem.
It addition, external vertical cable system is all attached with Haiti seismic detector (OceanBottomSeismometer) using, it does not have the vertical cable being individually operated, improve job costs to a certain extent. And due to its technical monopoly, make construction cost be greatly improved, it is impossible to meet domestic actual demand.
Summary of the invention
The purpose of this utility model is to provide a kind of self-tolerant marine vertical cable seismic prospecting data collecting system, to make up the deficiencies in the prior art.
This utility model is on the basis that existing activating system and differential GPS navigate, the improvement to acquisition system part.
A kind of self-tolerant marine vertical cable seismic prospecting data collecting system, including workboat, this workboat is provided with PC and controls main frame, differential GPS, and it is equipped with activating system, activating system includes the focus main frame being positioned on deck and the electrode being positioned in water, characterized by further comprising the one or more vertical cable of self-tolerant marine seismic prospectiong and the ball float unit thereof for gathering geological data
The described vertical cable wrap of self-tolerant marine seismic prospectiong is drawn together auxiliary wirerope and is fixed on the cable section on described auxiliary wirerope by snap ring, and auxiliary wirerope is all vertically arranged with cable section, described cable section is followed successively by front linkage section from top to bottom, first active section, tail active section and tail linkage section, and it is provided with watertight connector in front linkage section upper end, at front linkage section, it is provided with inclinometer and pressure transducer group between first active section, and it is first, it is provided with inside tail active section and organizes cable more, first, tail active section sets gradually 8 road hydrophone combinations along its length, (this 8 road digital packets is for before processing to be provided with expandable type 8 road digital packets between first active section and tail active section, the analogue signal that rear active section Zhong Ge tetra-road receives), filled polyurethane solid material between described cable and hydrophone combination, inclinometer and pressure transducer group it is provided with between tail active section and tail linkage section, titanium alloy metal joint is had to connect at tail linkage section end, described auxiliary wirerope is additionally provided with multiple buckle for hanging weight.
Described a kind of self-tolerant marine vertical cable seismic prospecting data collecting system, it is characterised in that described elemental floating body includes floating ball body, and the vertical cable being positioned at floating ball body controls and record unit, battery compartment and signal projector; Vertical cable in floating ball body controls to be connected by watertight connector and self-tolerant marine seismic prospectiong vertical cables with record unit, and control signal emitter controls main frame to PC and sends positional information, tranmitting frequency be 5 minutes once, battery compartment is that self-tolerant marine seismic prospectiong vertical cables is powered.
Described a kind of self-tolerant marine vertical cable seismic prospecting data collecting system, it is characterised in that the per pass hydrophone combination in initial and end active section adopts the equidistant differential weights combination being made up of 16 hydrophone, and the element interval of hydrophone is 0.3m, adopts being designed as of flexible strategy: 1,2,3,4,3,2,1.
Described a kind of self-tolerant marine vertical cable seismic prospecting data collecting system, it is characterised in that also increasing between initial and end active section and have one or more active section, described active section is identical with initial and end active section structure; It is provided with 8 road digital packets between first active section and adjacent active section, is provided with 8 road digital packets between tail active section and adjacent active section, when increase has multiple active section, between adjacent two active sections, also is provided with 8 road digital packets; This 8 road digital packets is connected with 8 hydrophone combination Xia tetra-roads, road being positioned above, 8 hydrophone combination Shang tetra-roads, road being disposed below respectively by 56 pin cable connectors, thus continuous print analogue signal is converted into discrete digital signal, achieve the digitized of cable, and to achieve the extension to vertical cable.
Described a kind of self-tolerant marine vertical cable seismic prospecting data collecting system, it is characterized in that 8 described road digital packets and active section are separate, 8 road numeral bags include the titanium alloy metal protection protector of column, protection set is internal is provided with multiple circuit board, 8 road digital packets are connected with the active section being located thereon lower two ends respectively by protecting 56 pin cable connectors within set, circuit board within 8 road digital packets includes: digiboard A, digiboard B, earthquake data acquisition board, signal gain panel, inclination data collection plate, pressure data collection plate, current data collection plate,Wherein, digiboard B is for collecting the output data of the collection plate of geological data, and data are carried out signal gain by control signal gain control making sheet; Digiboard A is for collecting the output data of inclination data collection plate, pressure data collection plate and current data collection plate, digiboard A, connect without circuit between digiboard B, but adopt parallel distributed combination, carry out the Power convert in vertical cable transmitting procedure respectively and obtain real time status information; The hydrophone combination in 4 road hydrophone, group of earthquake data acquisition board and its upper end and 4 roads of its lower end is connected, is responsible for the analog signal sampling to per pass hydrophone combination of transmitted and digital-to-analogue conversion, and electron plate B is arrived in output.
Above-mentioned self-tolerant marine seismic prospectiong vertical cable head active section top and tail active section lower end are respectively arranged with an inclinometer and pressure transducer group 3, it is possible to the information such as depth location that real time record cable is operationally residing and attitude, maximum can sinking to the depth of water 1000 meters; And adopt high-performance deep water hydrophone, adopt Vertical Observation mode, by adjusting the length with elastic front linkage section 2, it is possible to ensure at 1000 meters of of the depth of water still can normal operation, can be used for military target tracking.
The above-mentioned vertical cable of self-tolerant marine seismic prospectiong have employed auxiliary wirerope 8, make cable section that rigid structure need not be adopted can to adopt elastic construction, when cable section is hung on auxiliary wirerope 8, can by the mode of cable section flexure suspensions being adjusted the distance between hydrophone combination 11, such that it is able to adopt the arrangement of on-fixed track pitch, facilitate implementation the flexible adjustment of different target, it is simple to separate wave field. It can separate upgoing wave (such as echo) and down going wave (such as direct wave), is also convenient for identifying scattered wave, many subwaves.
Cable the vertical cable of advantage of the present utility model: a. realizes digital-to-analogue conversion, is truly realized the digitized of cable, so that can reach the extension of max number of channels under corresponding sample rate; B. operating depth is big, and when depth of water 1000m, vertical cable cable still can normal operation; C. the arrangement of on-fixed track pitch is adopted, it is simple to realize the flexible adjustment of different target; D. Temporal sampling is high, and up to 1/8ms, and optional sample rate is many: 1/8ms, 1/4ms, 1/2ms, 1ms, 2ms, 4ms; E. vertical cable is provided externally with auxiliary wirerope, it is achieved that the reasonable separation of function; F. the bandwidth of signal is received: 10Hz-8kHz; G. investigation depth is deep, coordinates 6000J spark source, meets in the depth of water more than 1000 meters the detection more than 1000 meter layers of the sea-bottom deposit stratum; H. by linkage section, tail linkage section before regulating, it is possible to control the sinking degree of depth of vertical cable in real time; I. in limited space, can realize, (especially in complicated hydrothermal solution area), the three-dimensional imaging that traditional three-dimensional exploitation method cannot realize.
Accompanying drawing explanation
Fig. 1 is population structure schematic diagram of the present utility model
Fig. 2 is construction schematic diagram of the present utility model
Fig. 3 is floating ball structure schematic diagram of the present utility model
Fig. 4 is vertical cable population structure schematic diagram of the present utility model
Fig. 5 is the vertical cable extension schematic diagram of marine seismic prospectiong of the present utility model
Fig. 6 is the vertical cable hydrophone combination structural representation of marine seismic prospectiong of the present utility model
Fig. 7 is the internal structure schematic diagram of marine seismic prospectiong of the present utility model vertical cable 8 road digital packets
Wherein, 1 watertight connector, linkage section before 2, 3 pressure transducers and inclinometer group, 4 first active sections, 5 digital packets, 6 tail active sections, 7 tail linkage sections, 8 auxiliary wireropes, 9 snap rings, 10 buckles, 11 hydrophone combinations, 12 hydrophone, 13 cable connectors, 14 signal gain panels, 15 digiboard A, 16 earthquake data acquisition boards, 17 pressure data collection plates, 18 inclination data collection plates, 19 electron plate B, 20 current data collection plates, 21 active sections, the 22 two sections of active sections connected, 23 workboats, 24pc controls main frame, 25 differential GPSs, 26 focus main frames, 27 electrodes, 28 vertical cables parts, 29 ball float unit, 30 floating ball body, 31 vertical cables control and record unit, 32 battery compartments, 33 signal projectors.
Detailed description of the invention
Such as Fig. 1-4, a kind of self-tolerant marine vertical cable seismic prospecting data collecting system, including workboat (23), this workboat 23 is provided with PC and controls main frame 24, differential GPS 25, and it is equipped with activating system, activating system includes the focus main frame 26 being positioned on deck and the electrode 27 being positioned in water, it is characterised in that also include the one or more vertical cable 28 of self-tolerant marine seismic prospectiong and the ball float unit 29 thereof for gathering geological data
The described vertical cable of self-tolerant marine seismic prospectiong 28 includes auxiliary wirerope 8 and is fixed on the cable section on described auxiliary wirerope 8 by snap ring 9, and auxiliary wirerope 8 is all vertically arranged with cable section, described cable section is followed successively by front linkage section 2 from top to bottom, first active section 4, tail active section 6 and tail linkage section 7, and it is provided with watertight connector 1 in front linkage section 2 upper end, at front linkage section 2, it is provided with inclinometer and pressure transducer group 3 between first active section 4, and it is first, tail active section 4, 6 internal being provided with organize cable more, first, tail active section 4, 6 set gradually 8 road hydrophone combinations 11 along its length, (this 8 road digital packets 5 is for before processing to be provided with expandable type 8 road digital packets 5 between first active section 4 and tail active section 6, the analogue signal that rear active section Zhong Ge tetra-road receives), filled polyurethane solid material between described cable and hydrophone combination, inclinometer and pressure transducer group 3 it is provided with between tail active section 6 and tail linkage section 7, titanium alloy metal joint is had to connect at tail linkage section 7 end, described auxiliary wirerope 8 is additionally provided with multiple buckle 10 for hanging weight.
As Fig. 1,3, described a kind of self-tolerant marine vertical cable seismic prospecting data collecting system, it is characterized in that described elemental floating body 29 includes floating ball body 30, and the vertical cable being positioned at floating ball body 30 controls and record unit 31, battery compartment 32 and signal projector 33; Vertical cable in floating ball body 30 controls to be connected by watertight connector 1 and self-tolerant marine seismic prospectiong vertical cables 28 with record unit 31, and control signal emitter 33 controls main frame 24 to PC and sends positional information, tranmitting frequency be 5 minutes once, battery compartment 32 is powered for self-tolerant marine seismic prospectiong vertical cables 28.
Such as Fig. 6, described a kind of self-tolerant marine vertical cable seismic prospecting data collecting system, it is characterized in that the equidistant differential weights combination that the combination of the per pass hydrophone in initial and end active section 4,6 11 employing is made up of 16 hydrophone 12, the element interval of hydrophone 12 is 0.3m, adopts being designed as of flexible strategy: 1,2,3,4,3,2,1.
Such as Fig. 5, described a kind of self-tolerant marine vertical cable seismic prospecting data collecting system, it is characterised in that also increasing between initial and end active section 4,6 and have one or more active section, described active section is identical with initial and end active section 4,6 structure; It is provided with 8 road digital packets 5 between first active section 4 and adjacent active section, is provided with 8 road digital packets 5 between tail active section 6 and adjacent active section, when increase has multiple active section, between adjacent two active sections, also is provided with 8 road digital packets 5; The 8 road hydrophone that this 8 road digital packets 5 combines 11 Xia tetra-roads with the 8 road hydrophone being positioned above respectively by 56 pin cable connectors, be disposed below combine 11 Shang tetra-roads and are connected, thus continuous print analogue signal is converted into discrete digital signal, achieve the digitized of cable, and to achieve the extension to vertical cable.
Such as Fig. 7, described a kind of self-tolerant marine vertical cable seismic prospecting data collecting system, it is characterized in that 8 described road digital packets 5 are separate with active section, 8 road digital packets 5 include the titanium alloy metal protection protector of column, protection set is internal is provided with multiple circuit board, 8 road digital packets 5 are connected with the active section being located thereon lower two ends respectively by protecting 56 pin cable connectors 13 within set, circuit board within 8 road digital packets 5 includes: digiboard A15, digiboard B19, earthquake data acquisition board 16, signal gain panel 14, inclination data collection plate 18, pressure data collection plate 17, current data collection plate 20,Wherein, digiboard B19 is for collecting the output data of the collection plate 16 of geological data, and data are carried out signal gain by control signal gain 14 panel; Digiboard A15 is for collecting the output data of inclination data collection plate 18, pressure data collection plate 17 and current data collection plate 20, digiboard A15, connect without circuit between digiboard B19, but adopt parallel distributed combination, carry out the Power convert in vertical cable transmitting procedure respectively and obtain real time status information; The hydrophone combination in 4 road hydrophone combinations 11 of earthquake data acquisition board 16 and its upper end and 4 roads of its lower end is connected, is responsible for the analog signal sampling to per pass hydrophone combination of transmitted and digital-to-analogue conversion, and electron plate B19 is arrived in output.
Use this utility model time, pc is controlled main frame be connected with vertical cable setting and configuration parameter after disconnection, focus connects and is in state to be excited. During construction, work ship lowsteaming, one group or several groups of cables are slowly put into marine, by regulating the active section head and the tail two ends linkage section of cable, control the active section sinking degree of depth of vertical cable, maximum can sinking to depth of water 1000m, blow out in predetermined shot position, start to gather (Fig. 3), after work completes, regain vertical cable and read data. During construction operation, the earthquake reflected wave signal that vertical cable receives is converted to digital signal through 8 road digital-to-analogue conversion digital packets, it is transferred to the record in ball float and control unit, it is acquired by it and record, meanwhile, the inclinometer at active section two ends and the information such as the attitude of pressure transducer record cable and position.
Claims (1)
1. a self-tolerant marine vertical cable seismic prospecting data collecting system, including workboat (23), this workboat (23) is provided with PC and controls main frame (24), differential GPS (25), and it is equipped with activating system, activating system includes the focus main frame (26) being positioned on deck and the electrode (27) being positioned in water, characterized by further comprising the vertical cable of the one or more self-tolerant marine seismic prospectiong (28) for gathering geological data and ball float unit (29) thereof
The described vertical cable of self-tolerant marine seismic prospectiong (28) includes auxiliary wirerope (8) and is fixed on the cable section on described auxiliary wirerope (8) by snap ring (9), and auxiliary wirerope (8) is all vertically arranged with cable section, described cable section is followed successively by front linkage section (2) from top to bottom, first active section (4), tail active section (6) and tail linkage section (7), and it is provided with watertight connector (1) in front linkage section (2) upper end, in front linkage section (2), it is provided with inclinometer and pressure transducer group (3) between first active section (4), and it is first, tail active section (4, 6) internal being provided with organizes cable more, first, tail active section (4, 6) 8 roads hydrophone combination (11) are set gradually along its length, it is provided with expandable type 8 road digital packets (5) between first active section (4) and tail active section (6), filled polyurethane solid material between described cable and hydrophone combination, inclinometer and pressure transducer group (3) it is provided with between tail active section (6) and tail linkage section (7), titanium alloy metal joint is had to connect at tail linkage section (7) end, described auxiliary wirerope (8) is additionally provided with multiple buckle (10) for hanging weight.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521140446.0U CN205317955U (en) | 2015-12-31 | 2015-12-31 | From holding formula perpendicular cable seismic prospecting data acquisition system in ocean |
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| CN201521140446.0U CN205317955U (en) | 2015-12-31 | 2015-12-31 | From holding formula perpendicular cable seismic prospecting data acquisition system in ocean |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467453A (en) * | 2015-12-31 | 2016-04-06 | 中国海洋大学 | Self-contained marine vertical cable seismic exploration data acquisition system |
| CN109765619A (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 its method based on mobile platform carrying |
| CN113994238A (en) * | 2019-06-19 | 2022-01-28 | 麦格塞兹Ff有限责任公司 | Marine diffraction surveys for small target detection |
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2015
- 2015-12-31 CN CN201521140446.0U patent/CN205317955U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467453A (en) * | 2015-12-31 | 2016-04-06 | 中国海洋大学 | Self-contained marine vertical cable seismic exploration data acquisition system |
| CN109765619A (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 its method based on mobile platform carrying |
| CN109765619B (en) * | 2019-01-30 | 2023-10-31 | 自然资源部第二海洋研究所 | Marine seismic exploration system and method based on mobile platform carrying |
| CN113994238A (en) * | 2019-06-19 | 2022-01-28 | 麦格塞兹Ff有限责任公司 | Marine diffraction surveys for small target detection |
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