CN1664619A - Distributed ocean seismic exploration haulage cable - Google Patents
Distributed ocean seismic exploration haulage cable Download PDFInfo
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- CN1664619A CN1664619A CN 200510055606 CN200510055606A CN1664619A CN 1664619 A CN1664619 A CN 1664619A CN 200510055606 CN200510055606 CN 200510055606 CN 200510055606 A CN200510055606 A CN 200510055606A CN 1664619 A CN1664619 A CN 1664619A
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Abstract
Distributed oceanic earthquake prospecting towrope, it relates to towrope using in geophysical prospecting, especially relates to a towed oceanic earthquake prospecting towrope. It comprise a protecting jacket and cables equipped in it, and sensors and data bags which placed in the protecting jacket, and also soft solid packing full filled between the protecting jacket and the cables, sensors, data bags. The distributed oceanic earthquake-prospecting towrope in the invention is floating supported by the soft solid packing, which is filled in the towrope. It is a solid oceanic earthquake-prospecting towrope; the use of continuous protective covering streamlined the towrope apparatus.
Description
Technical field
The towing cable that uses when the present invention relates to geophysical survey, particularly a kind of pull-type ocean seismic exploration haulage cable.
Background technology
Ocean seismic exploration haulage cable is one of important component part of offshore shooting.For many years, the offshore shooting industry relies on liquid-filled towing cable always, mainly contains the RDA towing cable of SERCEL company and the seafari towing cable of I/O company.This towing cable is mainly used in the underwater sound signal that earthquake is produced and gathers, and data are sent to record and disposal system on the ship.
The liquid towing cable need be adjusted the interior type and the quantity of liquid in the towing cable according to the variation of ocean temperature and/or salinity, actual job influences the accuracy of towing cable location often like this, liquid-filled towing cable overcoat easy fracture or tear and cause institute's topping up body to leak, the electronic devices and components in the corrosion towing cable simultaneously.Need provide a kind of solid solid towing cable to be substituted.
In addition, the setting of various sensors, digital packets and the transmission line relevant with the data acquisition transmission is also directly related to the performance of data collection and transmission with towing cable in the seafari towing cable, how arranging these components and parts and transmission line in solid solid towing cable, also is an important problem.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of distributed ocean seismic exploration haulage cable, and it even still can floatingly use, can adapt to various marine environment by unsteady support of soft solid material that is contained in the towing cable under the situation that outer jointing jacket breaks.
Distributed ocean seismic exploration haulage cable of the present invention comprises outer jointing jacket and one group of cable of the portion that sets within it, and the sensor that along its length set gradually inner at sheath and digital packets and the soft solid filler that is full of between outer jointing jacket and cable, sensor, digital packets.
Further, towing cable of the present invention can also have following characteristics: each digital packets adopts distributed secondary structure to be constituted by a digiboard and polylith collection plate, output data and packing that digiboard is used to collect collection plate are uploaded to the prime digital packets, and carry out the power source conversion in the towing cable transmission course and obtain real-time status information, by the optical fiber serial connection, each digiboard connects a plurality of collection plates by data line respectively between the digiboard; Each collection plate links to each other with a plurality of underwater sound sensors, and behind the analog signal sampling of being responsible for underwater sound sensor is transmitted and A/D conversion and Filtering Processing, output data is to described collecting board.
Further, towing cable of the present invention can also have following characteristics: each digiboard is connected with a plurality of collection plates, and these collection plates are divided into two groups, lays respectively at the two ends of this digiboard and be to be symmetrical arranged; The a plurality of sensors that are connected with each collection plate also can be divided into two groups, and lay respectively at the two ends of this collection plate and be and be symmetrical arranged.
As from the foregoing, distributed ocean seismic exploration haulage cable of the present invention is by unsteady support of soft solid material that is contained in the towing cable.It is a kind of solid ocean seismic exploration haulage cable, thereby still can floatingly use under the situation that outer jointing jacket breaks, and can adapt to various marine environment, improves the accuracy of location.The employing of sheath makes cable handler be streamlined continuously.
Further, the collection plate of digital packets and digiboard belong to symmetric design in the towing cable of the present invention, and towing cable does not need to distinguish direction when installing, and make that execute-in-place is convenient on the ship, have improved the operation timeliness; And digital packets adopts the design of distributed secondary structure, makes the tap at transmission board two ends significantly reduce, and helps the package design of towing cable, and seismoreceiver is near with the collection plate distance, reduces the sensor noise by the relative motion generation of towing cable parts.
Description of drawings
Fig. 1 is the cross sectional representation of embodiment of the invention towing cable.
Fig. 2 is the structural representation of embodiment of the invention towing cable.
Fig. 3 is the partial structurtes synoptic diagram of a bit of towing cable among Fig. 1.
Fig. 4 is the distributed secondary structure figure of embodiment of the invention towing cable digital packets.
Fig. 5 is the cascade system figure of embodiment of the invention digital packets.
Fig. 6 is the synoptic diagram of embodiment of the invention digital packets data transmission.
Embodiment
Present embodiment solid towing cable is a kind of pull-type ocean seismic exploration haulage cable that is floated and supported by the soft solid material that is contained in the towing cable.Every segment length of this towing cable is 100 meters; as depicted in figs. 1 and 2; this towing cable comprises outer jointing jacket 10 and the set within it cable 3 of portion, the sensor that is positioned at outer jointing jacket inside and digital packets 7 and soft solid filler 1, and being full of between outer jointing jacket 1 and cable 3, sensor and digital packets 7 has the soft solid filler.The soft solid filler is a polyurethane elastomer.Described sensor comprises piezoceramic transducer (a kind of underwater sound sensor, or be nautical receiving set), and this sensor outside also is cast with the polyurethane material shell.Cable 3 comprises data line, electrical lead, optical fiber and the protective sleeve that is enclosed in data line, electrical lead and outside of fiber.Inner be provided with the Kai Fula fiber rope 2 of tension stress dragging to pull, pull the inner float 8 that has been arranged at intervals with the frame fixation effect along its length dragging along the length direction of sheath.
In said structure, 10 pairs of whole towing cables of polyurethane outer jointing jacket play encapsulation and protective effect.With the obturator of polyurethane elastomer as the solid towing cable, it has good sound translative performance, has 0.75g/cm
3Proportion.Polyurethane elastomer riddles between outer jointing jacket and cable, the various element.Outer jointing jacket be adopt have well wear-resisting, tension, the polyurethane elastomer of decay resistance makes, it can not infiltrate in the seismic prospecting cable handler water.As shown in Figure 3, be provided with a float 8 every 6.25mm in the towing cable, the towing cable internal components is played the frame fixation effect.
Further, the data collection and transfering system in the present embodiment towing cable comprises various sensors, digital packets and cable.
Fig. 4 is the distributed secondary structure figure of digital packets.A digital packets is to adopt distributed secondary structure to be constituted by digiboard 6 and eight collection plates 4, reduced the tap at digiboard two ends, piezoceramic transducer is closer apart from collection plate in this structure, can reduce the collection noise, system index concentrates on collection plate, and to help the optimization of system integrated.
As shown in Figure 2, packet adopts distributed secondary structure.Every section towing cable length is 100m, is provided with a digital packets in every section towing cable, and each digital packets is responsible for the data acquisition transmission of one section towing cable, it is connected with eight collection plates, these collection plates are divided into two groups, lay respectively at the two ends of this digiboard and be to be symmetrical arranged, and are separated by 12.5 meters in twos.
Each collection plate 4 is responsible for obtaining output data after analog signal sampling that four road piezoceramic transducers are transmitted and A/D conversion and the FIR Filtering Processing, and eight identical collection plates 4 constitute the front-end sampling level of digital packets.As shown in Figure 3, each collection plate is connected with 4 piezoceramic transducers, and these piezoceramic transducers are divided into two groups, lay respectively at the two ends of this collection plate and be to be symmetrical arranged, and per two sensors are separated by 3.125 meters.Because said structure is a kind of symmetrical structure, two ends can exchange use.
As shown in Figure 4, digiboard 6 is general names of state plate 12 and collecting board 13, and state plate 12 is in full accord with the size of collecting board 13, when system assembles, collecting board 13 and state plate 12 superimposed being fixed together are formed the digiboard 6 of digital packets, and they constitute the digital transmission unit of digital packets.
Collecting board 13 is responsible for collecting eight collection plates 4 output datas of totally 32 road piezoceramic transducers, is connected with two power leads by two pairs of differential lines between collecting board 13 and the every collection plate 4.The transmission data of the sensor that collection plate 4 obtains are passed to the collecting board 13 of digital packets by data line, and packing in the lump at collecting board is uploaded to the prime digital packets.
Be serially connected with optical fiber 15 and RS-485 serial cable 14 between the digiboard.RS-485 serial cable 14 carries out the following biography of uploading and ordering of status information, and optical fiber 15 is gathered the data transmission after the packing.Electrical lead is actual to be power lead to cable power supply, is the direct-through line of independent cabling.Because underwater towing line length is greater than 6000 meters, power supply just can not be too low like this, adopts the direct supply of 150～175V that towing cable is powered among the present invention.Power supply obtains the operating voltage 12V of state plates 12 by multistage DC-DC conversion 27, provides 12V voltage by converter to collection plate 4 simultaneously, each collection plate 4 again 12V is converted to 5V ,+3.3V ,-circuit on the 3.3V power supply pressing plate uses.
Cascade system figure referring to Fig. 5 digital packets.In the present embodiment, the structure of all digital packets is identical, and system is numbered digital packets according to the distance order from the close-by examples to those far off of distance geophysical vessel automatically in the work.Wherein, the 0# digital packets claims head bag or prime digital packets again, links to each other with disposal system with record on the ship by a protocol converter.Last stages of digital bag is closed input optical fibre by software command.Referring to Fig. 2 and Fig. 3, by the every stages of digital bag of optical fiber with the image data of present segment add header packet information and and all back levels pass to the prime digital packets after uploading the packing data merging, simultaneously, digital packets handle by RS-485 serial towing cable line by prime backward level converting downlink order and by the back level to the prime transmitting state information.Need in the towing cable running status of digital packets is carried out dynamic monitoring, digital packets is uploaded status informations such as digital packets sequence number, water temperature, the towing cable degree of depth, towing cable tension force by RS-485 serial towing cable.These status informations are controlled and are managed by the status information control module on state plate and the collecting board, after digital packets receives on the ship " uploading status information " order that record and disposal system send, status information is uploaded in record and the disposal system to monitor by RS-485 serial towing cable.
Synoptic diagram referring to Fig. 6 digital packets data transmission.The data of uploading through collecting board 13 and back level after 32 tunnel output signals that amount to that eight collection plates 4 of each digital packets obtain piezoceramic transducer 7 merge, and add to pack after the status informations such as the digital packets of real-time monitoring of state plate 12 and the towing cable degree of depth, aquatic bird control, tension force detection and be uploaded to the prime packet, remember work such as band, real time data demonstration up to uploading to the 0# packet for acquisition processing system on the ship.
Claims (10)
1. distributed ocean seismic exploration haulage cable; it is characterized in that: it comprises outer jointing jacket and the cable of the portion that sets within it; be positioned at the sensor and the digital packets of outer jointing jacket inside, and the soft solid filler that between outer jointing jacket and cable, sensor, digital packets, is full of.
2. distributed ocean seismic exploration haulage cable as claimed in claim 1, it is characterized in that: each digital packets is to adopt distributed secondary structure to be constituted by a digiboard and polylith collection plate, output data and packing that digiboard is used to collect collection plate are uploaded to the prime digital packets, and carry out the power source conversion in the towing cable transmission course and obtain real-time status information, by the optical fiber serial connection, each digiboard connects a plurality of collection plates by data line respectively between the digiboard; Each collection plate links to each other with a plurality of underwater sound sensors, and behind the analog signal sampling and A/D conversion and Filtering Processing that is used for underwater sound sensor is transmitted, output data is to described collecting board.
3. distributed ocean seismic exploration haulage cable as claimed in claim 2 is characterized in that: each digiboard is connected with a plurality of collection plates, and these collection plates are divided into two groups, lays respectively at the two ends of this digiboard and be to be symmetrical arranged.
4. distributed ocean seismic exploration haulage cable as claimed in claim 2 is characterized in that: a plurality of sensors that are connected with each collection plate also are divided into two groups, and lay respectively at the two ends of this collection plate and be and be symmetrical arranged.
5. distributed ocean seismic exploration haulage cable as claimed in claim 2, it is characterized in that: digiboard is made of state plate and collecting board, superimposed being fixed together of collecting board and state plate constitutes the digiboard of digital packets, collecting board is responsible for command process, state transfer, data are synthetic and transfer function, and the state plate is responsible for pre-amplification, time division multiplex, analog to digital conversion and the power source conversion function of state.
6. as claim 1,2,3,4 or 5 described distributed ocean seismic exploration haulage cables, it is characterized in that: described soft solid filler is a polyurethane elastomer, and the material of described outer jointing jacket is a polyurethane.
7. as claim 1,2,3,4 or 5 described distributed ocean seismic exploration haulage cables, it is characterized in that: also be serially connected with the serial cable line between the described digiboard, be used to carry out the following biography of order and uploading step by step of status information.
8. as claim 1,2,3,4 or 5 described distributed ocean seismic exploration haulage cables, it is characterized in that: described underwater sound sensor is a piezoceramic transducer.
9. as claim 1,2,3,4 or 5 described distributed ocean seismic exploration haulage cables, it is characterized in that: described cable comprises data line, electrical lead, optical fiber and the protective sleeve that is enclosed in described data line, electrical lead and outside of fiber.
10. as claim 1,2,3 or 4 described distributed ocean seismic exploration haulage cables, it is characterized in that: inner be provided with the fiber rope of tension stress dragging to pull, pull the inner float that has been arranged at intervals with the frame fixation effect along its length dragging along the length direction of sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510055606 CN1289921C (en) | 2005-03-18 | 2005-03-18 | Distributed ocean seismic exploration haulage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510055606 CN1289921C (en) | 2005-03-18 | 2005-03-18 | Distributed ocean seismic exploration haulage cable |
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| CN1664619A true CN1664619A (en) | 2005-09-07 |
| CN1289921C CN1289921C (en) | 2006-12-13 |
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| CN 200510055606 Expired - Fee Related CN1289921C (en) | 2005-03-18 | 2005-03-18 | Distributed ocean seismic exploration haulage cable |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101414012B (en) * | 2008-12-03 | 2011-01-12 | 天津市远海声学仪器有限公司 | Digital drag type seismic exploration apparatus |
| CN101661113B (en) * | 2009-09-24 | 2011-07-20 | 中国海洋大学 | High-resolution multi-channel digital marine seismic streamer for ocean seismic prospecting |
| CN102778694A (en) * | 2012-08-16 | 2012-11-14 | 天津市远海声学仪器有限公司 | High-resolution acquisition system for engineering seismic data |
| CN101836133B (en) * | 2007-09-18 | 2013-06-26 | 离子地球物理公司 | Ocean bottom cable and sensor unit |
| CN103680727A (en) * | 2013-12-05 | 2014-03-26 | 天津市远海声学仪器有限公司 | Towed damping cable for marine seismic prospecting |
| CN106409399A (en) * | 2016-06-14 | 2017-02-15 | 常州船用电缆有限责任公司 | Marine airgun earthquake source cable |
| CN108535781A (en) * | 2018-06-09 | 2018-09-14 | 合肥国为电子有限公司 | A kind of underwater seismics floating cable of replaceable sensor |
| CN110412652A (en) * | 2019-08-24 | 2019-11-05 | 自然资源部第一海洋研究所 | A kind of marine seismic data transmission unit |
| WO2019210692A1 (en) * | 2018-05-04 | 2019-11-07 | Gao Jun | Solid streamer for marine seismic exploration |
| CN112965193A (en) * | 2021-02-04 | 2021-06-15 | 广州海洋地质调查局 | Ocean seismic streamer based on DAS optical fiber |
-
2005
- 2005-03-18 CN CN 200510055606 patent/CN1289921C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101836133B (en) * | 2007-09-18 | 2013-06-26 | 离子地球物理公司 | Ocean bottom cable and sensor unit |
| CN101414012B (en) * | 2008-12-03 | 2011-01-12 | 天津市远海声学仪器有限公司 | Digital drag type seismic exploration apparatus |
| CN101661113B (en) * | 2009-09-24 | 2011-07-20 | 中国海洋大学 | High-resolution multi-channel digital marine seismic streamer for ocean seismic prospecting |
| CN102778694A (en) * | 2012-08-16 | 2012-11-14 | 天津市远海声学仪器有限公司 | High-resolution acquisition system for engineering seismic data |
| CN103680727A (en) * | 2013-12-05 | 2014-03-26 | 天津市远海声学仪器有限公司 | Towed damping cable for marine seismic prospecting |
| CN103680727B (en) * | 2013-12-05 | 2015-11-18 | 天津市远海声学仪器有限公司 | A kind of pull-type damping cable for marine seismic prospectiong |
| CN106409399A (en) * | 2016-06-14 | 2017-02-15 | 常州船用电缆有限责任公司 | Marine airgun earthquake source cable |
| CN106409399B (en) * | 2016-06-14 | 2018-08-24 | 常州船用电缆有限责任公司 | Marine airgun focus cable |
| WO2019210692A1 (en) * | 2018-05-04 | 2019-11-07 | Gao Jun | Solid streamer for marine seismic exploration |
| CN108535781A (en) * | 2018-06-09 | 2018-09-14 | 合肥国为电子有限公司 | A kind of underwater seismics floating cable of replaceable sensor |
| CN110412652A (en) * | 2019-08-24 | 2019-11-05 | 自然资源部第一海洋研究所 | A kind of marine seismic data transmission unit |
| CN112965193A (en) * | 2021-02-04 | 2021-06-15 | 广州海洋地质调查局 | Ocean seismic streamer based on DAS optical fiber |
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| CN1289921C (en) | 2006-12-13 |
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Granted publication date: 20061213 Termination date: 20180318 |