CN205280952U - Perpendicular cable of high accuracy ocean seismic prospecting - Google Patents
Perpendicular cable of high accuracy ocean seismic prospecting Download PDFInfo
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- CN205280952U CN205280952U CN201620018883.3U CN201620018883U CN205280952U CN 205280952 U CN205280952 U CN 205280952U CN 201620018883 U CN201620018883 U CN 201620018883U CN 205280952 U CN205280952 U CN 205280952U
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- tail
- cable
- section
- working zone
- active section
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
- G01V1/3808—Seismic data acquisition, e.g. survey design
Abstract
The utility model provides a perpendicular cable of high accuracy ocean seismic prospecting, including assisting the steel cable and fixing the cable part on supplementary steel cable, 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, 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 tail -to -tail linking section, there is the titanium alloy metal joint to connect at tail -to -tail linking section end. The utility model discloses realize really having realized the digitization of cable by digital analog conversion on the perpendicular cable, when depth of water 1000m, perpendicular cable still can normally be worked, perpendicular cable is equipped with supplementary steel cable, has realized the reasonable separation of function, through adjusting preceding linkage segment, tail -to -tail linking section, sinking depth that can the perpendicular cable of real time control.
Description
Technical field
The data gathering cable used when the utility model relates to a kind of seismic prospecting, in particular to a kind of vertical cable of high-precision oceanic earthquake exploration.
Background technology
Acquisition of marine seismic data cable is the key equipment of ocean seism prospecting data collecting. What current 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. The vertical cable of high-precision oceanic earthquake exploration is the good approach addressed this problem.
Vertical cable external at present all carries out being connected use with Haiti seismograph (OceanBottomSeismometer), do not carry out separately the vertical cable of work, 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 of high resolving power offshore shooting, and it can not only overcome the above-mentioned shortcoming of domestic prior art, and has also met or exceeded the vertical cable of external the above-mentioned type in technical indicator.
A kind of vertical cable of high resolving power offshore shooting, it is characterized in that this vertical cable 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 8 road nautical receiving set combinations 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, 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.
Described a kind of vertical cable of high resolving power offshore shooting, 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 12 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.
Described a kind of vertical cable of high resolving power offshore shooting, 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.
Described a kind of vertical cable of high resolving power offshore shooting, 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 5 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 B 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.
The utility model has following feature:
A. the first working zone top of vertical cable and the lower end of tail working zone respectively have a tiltmeter and pressure transmitter group, 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.
B. the nautical receiving set combination in vertical Lan Mei road adopts the equidistant of 16 nautical receiving sets not wait power combination, and element interval is 0.3m, adopts being designed to of flexible strategy: 1,2,3,4,3,2,1, can better suppress random disturbance.
C. vertical cable can also increase between initial and end working zone multiple working zone, thus continuous print simulating signal is converted into discrete numerary signal, it is achieved that the digitizing of cable, and to achieve the expansion to vertical cable.
D. because vertical cable have employed auxiliary wirerope 8, make cable section need not adopt rigid structure and whippy structure can be adopted, when cable section is hung on auxiliary wirerope 8, the distance between 11 can be combined by the mode of cable section flexure suspensions being adjusted nautical receiving set, 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.
E. in conjunction with the numerical value of pressure transmitter, before regulating, section 2, tail connection section 7 is connected, it is possible to the sinking degree of depth of the vertical cable of control in real time.
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 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
The vertical cable structure schematic diagram of Fig. 1 high resolving power offshore shooting.
10 structural representations buckled by Fig. 2 card.
The vertical cable expansion schematic diagram of Fig. 3 high resolving power offshore shooting.
The vertical cable nautical receiving set combination structural representation of Fig. 4 high resolving power offshore shooting.
The internal structure schematic diagram of Fig. 5 high resolving power offshore shooting vertical cable 8 road digital packets.
Wherein, 1 watertight joint, connects section, 3 pressure transmitters and tiltmeter group before 2,4 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.
Embodiment
Such as Fig. 1-5, a kind of vertical cable of high resolving power offshore shooting, it is characterized in that this vertical cable 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. 4, 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 (two sections of working zones 22 of connection are such as Fig. 3), 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. 5,8 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.
Embodiment
Fig. 1 is the vertical cable structure schematic diagram of high resolving power offshore shooting, connects section 2 (at least 30m) before being divided into, first working zone 4 (at least 60m), and tail working zone 6 (at least 60m), tail connects section 7 and auxiliary wirerope 8. Described working zone 4,6 is solid cable.
Fig. 4 is the vertical cable nautical receiving set combination structural representation of high resolving power offshore shooting, the nautical receiving set 12 in every road adopts and does not wait power arrangement, and Ji Mei road nautical receiving set combination 11 is made up of 16 nautical receiving sets, and weight is successively decreased to both sides by centre, be conducive to better suppressing noise, it is to increase useful signal. The arrangement mode of nautical receiving set arrangement 11 employing 1,2,3,4,3,2,1 in this patent Zhong Mei road, can effectively suppress random disturbance.
When using the utility model, vertical cable is connected with signal receiver. During construction, work ship lowsteaming (being no more than 2 joints), the vertical cable setting track pitch is slowly put into sea, during construction operation, the earthquake reflected wave signal that cable receives is converted to numerary signal through digital packets, it is transferred to signal receiver, undertaken gathering and record by it, simultaneously, the tiltmeter at working zone two ends and pressure transmitter group 3 measure the information such as position and attitude of cable, and inclination angle and hydraulic pressure can be shown on signal receiver in real time, it is convenient to adjust flexibly ship's speed and the sinking degree of depth.
Claims (1)
1. the vertical cable of high resolving power offshore shooting, it is characterized in that the cable section that this vertical cable 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 (11), 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 |
|---|---|---|---|
| CN201620018883.3U CN205280952U (en) | 2015-12-31 | 2016-01-10 | Perpendicular cable of high accuracy ocean seismic prospecting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033230 | 2015-12-31 | ||
| CN2015110332309 | 2015-12-31 | ||
| CN201620018883.3U CN205280952U (en) | 2015-12-31 | 2016-01-10 | Perpendicular cable of high accuracy ocean seismic prospecting |
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| Publication Number | Publication Date |
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| CN205280952U true CN205280952U (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610015990.5A Active CN105510978B (en) | 2015-12-31 | 2016-01-10 | The vertical cable of high-precision oceanic earthquake exploration |
| CN201620018883.3U Expired - Fee Related CN205280952U (en) | 2015-12-31 | 2016-01-10 | Perpendicular cable of high accuracy ocean seismic prospecting |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610015990.5A Active CN105510978B (en) | 2015-12-31 | 2016-01-10 | The vertical cable of high-precision oceanic earthquake exploration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510978A (en) * | 2015-12-31 | 2016-04-20 | 中国海洋大学 | High-precision oceanic seismic exploration vertical cable |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN112946732B (en) * | 2021-02-02 | 2022-09-30 | 中国海洋大学 | Processing method and system for jointly suppressing multiple single cable of offshore stereo observation system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5452266A (en) * | 1994-09-19 | 1995-09-19 | The United States Of America As Represented By The Secretary Of The Navy | Submersible sensor system |
| US6088299A (en) * | 1998-12-04 | 2000-07-11 | Syntron, Inc. | Vertical hydrophone array |
| US6256589B1 (en) * | 1999-12-03 | 2001-07-03 | Petroleo Brasileiro S.A.-Petrobras | Method for the measurement of multidirectional far-field source signatures from seismic surveys |
| GB2479200A (en) * | 2010-04-01 | 2011-10-05 | Statoil Asa | Interpolating pressure and/or vertical particle velocity data from multi-component marine seismic data including horizontal derivatives |
| CA2920447C (en) * | 2013-02-06 | 2021-12-21 | Martin John Hartland | Apparatus and method for surveying |
| RU2562747C1 (en) * | 2014-02-19 | 2015-09-10 | Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг РФ) | Method of conducting underwater/under-ice seismoacoustic survey using ice-breaker ship and system therefor |
| CN204556851U (en) * | 2015-01-26 | 2015-08-12 | 中国海洋石油总公司 | A kind of subsea cable Omnibearing earthquake auto gathers recording geometry |
| CN105510978B (en) * | 2015-12-31 | 2016-11-23 | 中国海洋大学 | The vertical cable of high-precision oceanic earthquake exploration |
-
2016
- 2016-01-10 CN CN201610015990.5A patent/CN105510978B/en active Active
- 2016-01-10 CN CN201620018883.3U patent/CN205280952U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510978A (en) * | 2015-12-31 | 2016-04-20 | 中国海洋大学 | High-precision oceanic seismic exploration vertical cable |
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| Publication number | Publication date |
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| CN105510978A (en) | 2016-04-20 |
| CN105510978B (en) | 2016-11-23 |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20180110 |