CN201540371U - High-precision marine seismic exploring multi-digital solid towline - Google Patents
High-precision marine seismic exploring multi-digital solid towline Download PDFInfo
- Publication number
- CN201540371U CN201540371U CN200920282297XU CN200920282297U CN201540371U CN 201540371 U CN201540371 U CN 201540371U CN 200920282297X U CN200920282297X U CN 200920282297XU CN 200920282297 U CN200920282297 U CN 200920282297U CN 201540371 U CN201540371 U CN 201540371U
- Authority
- CN
- China
- Prior art keywords
- towing cable
- section
- nautical receiving
- active section
- towline
- 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
Images
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model relates to a high-precision marine seismic exploring multi-digital solid towline comprising a working section and digital packets which are connected with a deck section, and is characterized in that the working section further comprises a front depth towing controller and a back depth towing controller respectively installed at the two ends of the working section; and the working section (3) is a section of complete towline. The working section is internally provided with the digital packets for carrying out digital-to-analogue conversion on the seismic signals as well as a depth sensor and a pressure sensor for monitoring the depth and the pressure of the towline when working in real time. In the utility model, the existing digital packets independent to towline are wrapped in the working section of the towline, and the soft solid is filled in the working section so as to form a closed continuous working section, thereby reducing noise interference caused by collision of internal element and simultaneously reducing the cost.
Description
Technical field
The utility model relates to the towing cable that geophysical survey uses, particularly a kind of high-precision oceanic earthquake exploration multiple tracks numeral solid towing cable.
Background technology
The offshore shooting digital streamer is one of important component part of offshore shooting.The digital streamer of multichannel seismic exploration reception at present is liquid-filled towing cable mostly, and anti-pressure ability is poor, and towing cable easily produces deformation, often influences the accuracy of towing cable location in the practice of construction; Working depth is more shallow, and maximum can only reach depth of water 35m, and when surpassing 35m, towing cable can't operate as normal, brings certain restriction to offshore construction.In addition, the digital packets that at present domestic and international digital streamer is used for digital-to-analog conversion mostly is independent of towing cable, therefore increased the linkage section of towing cable, be that active section is to be divided into two sections, connect by digital packets, tieing between section and the section had both increased the cost of towing cable, damaged producing leaky again easily, had influenced the quality of seismic survey work.
Summary of the invention
The purpose of this utility model provides a kind of high-precision oceanic earthquake exploration multiple tracks numeral solid towing cable, to remedy the deficiencies in the prior art.
The utility model comprises deck section and active section that is connected and digital packets, it is characterized in that above-mentioned active section also comprise one that its two ends are provided with respectively before the dark drag controller of dark drag controller and back, and active section is one section complete towing cable.
The dark drag controller of preceding dark drag controller that wherein above-mentioned active section two ends are provided with respectively and back is can the maintenance level when guaranteeing to make towing cable work and the control towing cable sinking degree of depth in real time.
Above-mentioned active section inside is provided with the digital packets of seismic signal being carried out digital-to-analog conversion, and is provided with depth transducer and pressure transducer that degree of depth when towing cable worked and pressure are monitored in real time.
The combination of the nautical receiving set of above-mentioned per pass has equidistant 8 groups to amount to 18 nautical receiving sets, and the arrangement mode of 18 nautical receiving sets in the combination of per pass nautical receiving set is 3,1,2 successively, 4,1,2,3,2 equidistant differential weights combination, the interval S of the nautical receiving set combination of each nautical receiving set or per pass is 0.39m.
Advantage of the present utility model: a. realizes digital-to-analog conversion on towing cable, really become the digitizing towing cable, makes towing cable can reach the expansion of main road number under corresponding sampling rate, and maximum can expand to 9600 roads; When b. the sinking degree of depth reaches depth of water 1000m, but towing cable operate as normal still; C. adopt the 3.25m small distance between receivers to arrange, improved spatial resolution greatly; D. time-sampling rate height, its sampling rate be up to 1/16ms, but and the scope general election majority of sampling rate reach: 1/16ms, 1/8ms, 1/4ms, 1/2ms, 1ms, 2ms, 4ms; E. digital packets is optional to signal programmable-gain value: 0dB, 12dB, 24dB, 36dB, 42dB; F. the bandwidth of received signal: 5Hz-8kHz; G. investigation depth is dark, cooperates 6000 joules of sparker sources, satisfies in the depth of water greater than 1000 meters the detection of submarine sedimentary strata greater than 1500 meter layers.H. the inner employing of towing cable soft solid filling, crushing resistance is good, is difficult for deformation.
Description of drawings
Fig. 1 is a general structure synoptic diagram of the present utility model.
Fig. 2 is a nautical receiving set combination mode synoptic diagram of the present utility model.
Wherein, 1 deck section, 2 preceding dark drag controllers, 3 active sections, the dark drag controller in 4 backs, the combination of 5 nautical receiving sets, 6 digital packets, 7 pressure transducers, 8 depth transducers, 9 nautical receiving sets.
Embodiment
As Fig. 1, the utility model comprises deck section 1 and active section 3 that is connected and digital packets 6, it is characterized in that above-mentioned active section 3 comprises also that its two ends are provided with respectively one the maintenance level when making towing cable work and the dark drag controller 4 of preceding dark drag controller 2 and back of the control towing cable sinking degree of depth in real time, and active section 3 is one section complete towing cable.
The utility model comprises deck section 1 and active section 3 that is connected and digital packets 6; and at the outer protection cover of towing cable and the soft solid medium of towing cable inside; wherein digital packets 6 can be expanded; maximum can expand to 9600 roads; with 24 road digital packets 6 is example; deck section 1 of the present utility model is 1000m at least, and active section 3 is 75m at least.Dark drag controller 2 before being provided with between deck section 1 and the active section 3, active section 3 ends are provided with the dark drag controller 4 in back, active section 3 inside are provided with can carry out digital-to-analog conversion 24 road digital packets 6 and pressure transducer 7 and depth transducer 8 that the degree of depth when towing cable worked and pressure are monitored in real time, the existing digital packets 6 that is independent of towing cable is placed the active section inside of towing cable, and in active section filling soft solid, formed airtight continuous active section, both reduced because the noise jamming that the collision of inner member causes has reduced cost again.
As Fig. 2, be provided with 24 road nautical receiving set combinations 5 in the active section 3 of the present utility model, and 18 nautical receiving sets 9 are adopted in the nautical receiving set of per pass combination 5, the arrangement mode of 18 nautical receiving sets 9 in the per pass nautical receiving set combination 5 is 3 successively, 1,2,4,1,2,3,2 equidistant differential weights combination, the interval S of the nautical receiving set combination 5 of each nautical receiving set 9 or per pass is 0.39m, with the inner member of compacting random disturbance and towing cable and the undesired signals such as rarefaction wave of the skin-deep interaction generation of oily ST Stuffing Table.
When using the utility model,, and be connected with commercially available signal receiver as long as this towing cable is wrapped on the winch.During construction, work ship lowsteaming, cable is slowly put into marine, the dark drag controller at the active section head and the tail two ends by towing cable, the active section sinking degree of depth of control towing cable, but the maximum sinking is to 1000 meters of the depth of waters, adopt 10CC type high-performance nautical receiving set, cooperate dark towing cable controller to use, can make towing cable, can be used for military affairs in 600 meters operate as normal of the depth of water.During construction operation, the earthquake reflected wave signal that towing cable receives is converted to digital signal through SeaMUX24 road digital packets, is transferred to signal receiver, gathers and record, simultaneously, pressure transducer in the digital packets and depth transducer can be monitored the degree of depth of towing cable and the pressure of being received in real time.
Claims (4)
1. high-precision oceanic earthquake exploration multiple tracks numeral solid towing cable, comprise active section (3) and digital packets (6) that deck section (1) connects, it is characterized in that above-mentioned active section (3) also comprise one that its two ends are provided with respectively before drag controller (4) deeply behind dark drag controller (2) and, and active section (3) is one section complete towing cable.
2. high-precision oceanic earthquake exploration multiple tracks numeral solid towing cable as claimed in claim 1 is characterized in that the inner digital packets (6) of above-mentioned active section (3) is the 24 road digital packets of seismic signal being carried out digital-to-analog conversion.
3. high-precision oceanic earthquake exploration multiple tracks as claimed in claim 1 numeral solid towing cable is characterized in that above-mentioned active section (3) inside is provided with pressure transducer (7) and depth transducer (8) that degree of depth when towing cable worked and pressure are monitored in real time.
4. high-precision oceanic earthquake exploration multiple tracks numeral solid towing cable as claimed in claim 1, it is characterized in that being provided with in the above-mentioned active section (3) 24 road nautical receiving set combinations (5), and the nautical receiving set of per pass combination (5) employing 18 nautical receiving sets (9), the arrangement mode of 18 nautical receiving sets (9) in the per pass nautical receiving set combination (5) is 3 successively, 1,2,4,1,2,3,2 equidistant differential weights combination, the spacing of the nautical receiving set combination (5) of each nautical receiving set (9) or per pass is 0.39m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920282297XU CN201540371U (en) | 2009-11-29 | 2009-11-29 | High-precision marine seismic exploring multi-digital solid towline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920282297XU CN201540371U (en) | 2009-11-29 | 2009-11-29 | High-precision marine seismic exploring multi-digital solid towline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201540371U true CN201540371U (en) | 2010-08-04 |
Family
ID=42591832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920282297XU Expired - Fee Related CN201540371U (en) | 2009-11-29 | 2009-11-29 | High-precision marine seismic exploring multi-digital solid towline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201540371U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102075015A (en) * | 2011-01-19 | 2011-05-25 | 中国海洋石油总公司 | Towline high voltage direct current (DC) power supply for geophysical exploration |
| CN103837909A (en) * | 2013-12-05 | 2014-06-04 | 天津市远海声学仪器有限公司 | Hydrophone detaching device for solid cable |
| WO2019210692A1 (en) * | 2018-05-04 | 2019-11-07 | Gao Jun | Solid streamer for marine seismic exploration |
| WO2022047680A1 (en) * | 2020-09-02 | 2022-03-10 | 中国海洋大学 | High-precision measurement device for plasma seismic source wavelets under shallow water condition |
-
2009
- 2009-11-29 CN CN200920282297XU patent/CN201540371U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102075015A (en) * | 2011-01-19 | 2011-05-25 | 中国海洋石油总公司 | Towline high voltage direct current (DC) power supply for geophysical exploration |
| CN102075015B (en) * | 2011-01-19 | 2012-08-15 | 中国海洋石油总公司 | Towline high voltage direct current (DC) power supply for geophysical exploration |
| CN103837909A (en) * | 2013-12-05 | 2014-06-04 | 天津市远海声学仪器有限公司 | Hydrophone detaching device for solid cable |
| WO2019210692A1 (en) * | 2018-05-04 | 2019-11-07 | Gao Jun | Solid streamer for marine seismic exploration |
| WO2022047680A1 (en) * | 2020-09-02 | 2022-03-10 | 中国海洋大学 | High-precision measurement device for plasma seismic source wavelets under shallow water condition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Worcester et al. | The North Pacific Acoustic Laboratory deep-water acoustic propagation experiments in the Philippine Sea | |
| US7660192B2 (en) | Seismic streamer receiver selection systems and methods | |
| CA1096963A (en) | Seismic exploration for dipping formations | |
| US7660189B2 (en) | Apparatus, systems and methods for determining position of marine seismic acoustic receivers | |
| CN101726755B (en) | For being determined the method for stratum quality factor by dual-sensor marine seismic signals | |
| CN101706584B (en) | High-precision oceanic earthquake exploration data acquisition system | |
| CN102736110A (en) | Method for seismic surveying using wider lateral spacing between sources to improve efficiency | |
| CN101661113B (en) | High-resolution multi-channel digital marine seismic streamer for ocean seismic prospecting | |
| CN201540371U (en) | High-precision marine seismic exploring multi-digital solid towline | |
| CN101793965A (en) | Acoustic positioning system of shallow sea wave detector | |
| CN105510977A (en) | Pull-type marine seismic prospecting vertical cable data acquisition system | |
| CN101762823B (en) | System for measuring position of marine seismic streamer based on one-way hydroacoustic ranging | |
| CN105467453A (en) | Self-contained marine vertical cable seismic exploration data acquisition system | |
| Dziak et al. | Ambient sound at challenger deep, mariana trench | |
| CN105510978B (en) | The vertical cable of high-precision oceanic earthquake exploration | |
| CN201508415U (en) | HR multiple-channel digital streamer cable for marine seismic prospecting | |
| Brodie et al. | The morphology of Kermadec and Hikurangi trenches | |
| CN109632258A (en) | A kind of internal wave of ocean acoustic detection method that the transmitting-receiving based on vector sensor is isolated | |
| CN201540372U (en) | High-precision marine seismic survey data acquisition system | |
| CN205317955U (en) | From holding formula perpendicular cable seismic prospecting data acquisition system in ocean | |
| KR101016014B1 (en) | Multi channel seismic survey apparatus for acquiring seismic data suitable for the waveform inversion in the laplace domain | |
| GB2438426A (en) | Seismic streamer receiver selection | |
| Ryang et al. | Geoacoustic model at the DH-1 long-core site in the Korean continental margin of the East Sea | |
| GB1506189A (en) | Simultaneous marine seismic surveying at different depths of investigation | |
| CN103412334A (en) | Double-source seismic exploration method and system based on marine seismic exploration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100804 Termination date: 20111129 |