CN202976877U - Seismic detection cable with stretch-proofing and anti-interference performances - Google Patents
Seismic detection cable with stretch-proofing and anti-interference performances Download PDFInfo
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- CN202976877U CN202976877U CN 201220481291 CN201220481291U CN202976877U CN 202976877 U CN202976877 U CN 202976877U CN 201220481291 CN201220481291 CN 201220481291 CN 201220481291 U CN201220481291 U CN 201220481291U CN 202976877 U CN202976877 U CN 202976877U
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- copper conductor
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Abstract
The utility model discloses a seismic detection cable with stretch-proofing and anti-interference performances, which comprises four copper conductor cores. The outer surfaces of the copper conductor cores are coated with polyolefin layers which serve as insulating layers. An aramid fiber reinforcing core is located in the gap among the four copper conductor cores. Each copper conductor core comprises a first copper lead located in the center, an inner copper lead layer and an outer copper lead layer. The inner copper lead layer is formed by six second copper leads twisted on the outer surface of the first copper lead. The outer copper lead layer is formed by twelve third copper leads twisted on the outer surface of the inner copper lead layer. A shielding layer formed by braiding several strands of tin-coated copper wires is coated on the outer surfaces of the four copper conductor cores. An outer sheath layer is coated on the outer surface of the shielding layer. The detection cable which has overall flexibility and bendability enhanced further ensures strong anti-interference capabilities, a wide frequency band and insignificant attenuation. Meanwhile, the tensile properties of the cable are significantly improved.
Description
Technical field
The utility model relates to the exploration cable field, is specifically related to a kind of have stretch-proof, anti-interference seismic survey cable.
Background technology
seismic prospecting is present the most frequently used oil, one of exploitation method of the mineral resources such as coal, its basic principle is to utilize artificial earthquake to produce vibration signal in the stratum or in seawater, receive vibration signal according to designing requirement at the different location arrangements pressure vibration transducer (being geophone) of distance shot point, then the mechanical oscillation signal that receives is converted into electric signal, by the seismic survey cable, electric signal is sent into seismic detector again, by seismic detector, electric signal is amplified again, change binary data into through A/D converter, again data analysis is processed, frequency according to signal, amplitude, the attribute on the information analysis different depth such as speed stratum, with structural configuration etc., thereby tentatively judge whether to have oil, the conditions such as colliery, the well location of probing is provided at last.
At present advanced in the world physical prospecting company has two, and the one, the ION geophysics group company of the U.S. is detection company the biggest in the world at present, its business spreads all over all over the world; Another family is French Sai Sheer Sercel company.This seismic detector of two occupies the physical prospecting market of the whole world more than 90%.Domestic physical prospecting company is mainly the east geophysics company that is positioned at the Zhuozhou, Hebei, and the seismic equipment of its outfit is almost external import entirely.And transfer of data cable used can not satisfy its demand far away, due to geological exploration all and adverse circumstances under carry out, the damage of cable is changed inevitable, depend merely on import and can not meet requirement far away, and the producer of present domestic formation large-scale production does not also have.
Summary of the invention
The utility model purpose is to provide a kind of have stretch-proof, anti-interference seismic survey cable, this visits when improving whole cable flexibility and bendability with exploration cable, can guarantee that antijamming capability is strong, bandwidth, decay little, adapt to various harsh outdoor environmental conditions stable performances, and the cable tensile property has obtained improving greatly, lightweight, be fit to be easy to carry and reuse.
for achieving the above object, the technical solution adopted in the utility model is: a kind of have a stretch-proof, anti-interference seismic survey cable, comprise 4 copper conductor cores, this copper conductor core outer surface is coated with the polyolefin layer as insulating barrier, one aramid fiber strengthening core is positioned at the gap of four described copper conductor core centers, described copper conductor core comprises the first copper conductor that is positioned at the center, interior copper conductor layer and outer copper conductor layer, described interior copper conductor layer is comprised of 6 stranded the second copper conductors in the first copper conductor outer surface, described outer copper conductor layer is comprised of 12 stranded the 3rd copper conductors in interior copper conductor layer outer surface, the screen that is formed by some bursts of tinned copper wire braidings is coated on described 4 copper conductor core outer surfaces, and an external sheath layer is coated on described screen outer surface.
It is as follows that technique scheme is further improved technical scheme:
1. in such scheme, four polyolefin gasket for packings are uniformly distributed between 4 described copper conductor core outsides and screen.
2. in such scheme, described polyolefin gasket for packing is by some stranded the forming of aramid yarn.
3. in such scheme, described interior copper conductor layer direction of lay is dextrad, and described outer copper conductor layer direction of lay is left-hand.
Because technique scheme is used, the utility model compared with prior art has following advantages and effect:
The utlity model has stretch-proof, anti-interference seismic survey cable, when it improves whole cable flexibility and bendability, can guarantee that antijamming capability is strong, bandwidth, decay little, adapt to various harsh outdoor environmental conditions stable performances, and the cable tensile property has obtained improving greatly, lightweight, be fit to be easy to carry and reuse; Secondly, adopt the braiding of multiply tinned copper wire as anti-interference element, make cable satisfy the requirement of environment for use; Thereby solved the problems such as foreign technology barrier, whole degree of prospecting be lower, offshore oil drilling will be one of important strategic succeeding region of China's 21st century oil and gas industry, have very wide exploration prospect.
Description of drawings
Accompanying drawing 1 is for the utlity model has stretch-proof, anti-interference seismic survey construction of cable schematic diagram;
Accompanying drawing 2 is the utility model copper conductor core structural representation.
In above accompanying drawing: 1, copper conductor core; 11, the first copper conductor; 12, interior copper conductor layer; 121, the second copper conductor; 13, outer copper conductor layer; 131, the 3rd copper conductor; 2, aramid yarn; 3, polyolefin layer; 4, aramid fiber strengthening core; 5, tinned copper wire; 6, screen; 7, external sheath layer; 8, polyolefin gasket for packing.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
embodiment 1: a kind of have a stretch-proof, anti-interference seismic survey cable, comprise 4 copper conductor cores 1, this copper conductor core 1 outer surface is coated with the polyolefin layer 3 as insulating barrier, one aramid fiber strengthening core 4 is positioned at the gap of four described copper conductor core 1 centers, described copper conductor core 1 comprises the first copper conductor 11 that is positioned at the center, interior copper conductor layer 12 and outer copper conductor layer 13, described interior copper conductor layer 12 is comprised of 6 stranded the second copper conductors 121 in the first copper conductor 11 outer surfaces, described outer copper conductor layer 13 is comprised of 12 stranded the 3rd copper conductors 131 in interior copper conductor layer 12 outer surfaces, the screen 6 that is formed by 5 braidings of some strands of tinned copper wires is coated on described 4 copper conductor core 1 outer surfaces, and an external sheath layer 7 is coated on described screen 6 outer surfaces.
Four polyolefin gasket for packings 8 are uniformly distributed between 4 described copper conductor core 1 outsides and screen 6; Above-mentioned interior copper conductor layer 12 direction of lays are dextrad, and described outer copper conductor layer 13 direction of lays are left-hand.
embodiment 2: a kind of have a stretch-proof, anti-interference seismic survey cable, comprise 4 copper conductor cores 1, this copper conductor core 1 outer surface is coated with the polyolefin layer 3 as insulating barrier, one aramid fiber strengthening core 4 is positioned at the gap of four described copper conductor core 1 centers, described copper conductor core 1 comprises the first copper conductor 11 that is positioned at the center, interior copper conductor layer 12 and outer copper conductor layer 13, described interior copper conductor layer 12 is comprised of 6 stranded the second copper conductors 121 in the first copper conductor 11 outer surfaces, described outer copper conductor layer 13 is comprised of 12 stranded the 3rd copper conductors 131 in interior copper conductor layer 12 outer surfaces, the screen 6 that is formed by 5 braidings of some strands of tinned copper wires is coated on described 4 copper conductor core 1 outer surfaces, and an external sheath layer 7 is coated on described screen 6 outer surfaces.
Four polyolefin gasket for packings 8 are uniformly distributed between 4 described copper conductor core 1 outsides and screen 6; Said polyolefins gasket for packing 8 forms by some aramid yarns 2 are stranded.
Adopt above-mentionedly when having stretch-proof, anti-interference seismic survey cable, the product the key technical indexes is as follows:
(1) insulation resistance of cable: 1000M Ω km in the time of 20 ℃
(2) 20 ℃ of conductor DC resistance :≤90 ± 5 Ω/km
(3) mutual capacitance :≤45 ± 2nF/km;
(4) characteristic impedance: 100 ± 10 Ω;
(5) low temperature bend test: test temperature is-40 ℃, flawless.
(6) pull test: cable can bear the 456LBS pull test.
adopted aramid yarn as an anti-element, adopt the braiding of multiply tinned copper wire as anti-interference element, make cable satisfy the requirement of environment for use, the develop of the utility model product has solved the foreign technology barrier, the problems such as whole degree of prospecting is lower, product is mainly for oil, mineral exploration, transmit various detection instrument digital signals and analog signal, antijamming capability is strong, bandwidth, decay little, block-water performance and tensile property are good, lightweight, be easy to carry with reusable, it is a kind of new product with development prospect, the performance index of product meet the products standards requirement, have obvious economic benefit and promotional value.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow person skilled in the art scholar can understand content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection range of the present utility model.
Claims (4)
1. one kind has stretch-proof, anti-interference seismic survey cable, it is characterized in that: comprise 4 copper conductor cores (1), this copper conductor core (1) outer surface is coated with the polyolefin layer (3) as insulating barrier, one aramid fiber strengthening core (4) is positioned at the gap of four described copper conductor cores (1) center, described copper conductor core (1) comprises the first copper conductor (11) that is positioned at the center, interior copper conductor layer (12) and outer copper conductor layer (13), described interior copper conductor layer (12) is comprised of 6 stranded the second copper conductors (121) in the first copper conductor (11) outer surface, described outer copper conductor layer (13) is comprised of 12 stranded the 3rd copper conductors (131) in interior copper conductor layer (12) outer surface, the screen (6) that is formed by some strands of tinned copper wires (5) braiding is coated on described 4 copper conductor cores (1) outer surface, and an external sheath layer (7) is coated on described screen (6) outer surface.
2. seismic survey cable according to claim 1 is characterized in that: four polyolefin gasket for packings (8) are uniformly distributed between 4 described copper conductor cores (1) outside and screen (6).
3. seismic survey cable according to claim 2, it is characterized in that: described polyolefin gasket for packing (8) is by stranded the forming of some aramid yarns (2).
4. seismic survey cable according to claim 1, it is characterized in that: described interior copper conductor layer (12) direction of lay is dextrad, described outer copper conductor layer (13) direction of lay is left-hand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220481291 CN202976877U (en) | 2012-09-20 | 2012-09-20 | Seismic detection cable with stretch-proofing and anti-interference performances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220481291 CN202976877U (en) | 2012-09-20 | 2012-09-20 | Seismic detection cable with stretch-proofing and anti-interference performances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202976877U true CN202976877U (en) | 2013-06-05 |
Family
ID=48517921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220481291 Expired - Fee Related CN202976877U (en) | 2012-09-20 | 2012-09-20 | Seismic detection cable with stretch-proofing and anti-interference performances |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202976877U (en) |
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2012
- 2012-09-20 CN CN 201220481291 patent/CN202976877U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20130605 Termination date: 20150920 |
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| EXPY | Termination of patent right or utility model |