CN205354729U - Deep well cable is surveyd to earth electricity - Google Patents
Deep well cable is surveyd to earth electricity Download PDFInfo
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- CN205354729U CN205354729U CN201620012525.1U CN201620012525U CN205354729U CN 205354729 U CN205354729 U CN 205354729U CN 201620012525 U CN201620012525 U CN 201620012525U CN 205354729 U CN205354729 U CN 205354729U
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Abstract
The utility model discloses a deep well cable is surveyd to earth electricity, including two fibre cores, conductor and insulating layer are observed including earth electricity by interior outside to the fibre core, the fibre core periphery is by interior sealing layer, earth electricity detection layer, water blocking layer, cordage and the resistance to compression outer jacket of including in proper order outside to, the sealing layer is filled between fibre core and earth electricity detection layer. The utility model discloses deep well cable is surveyd to earth electricity simple structure, it is big to bear breaking force, and resistant oily, wear -resisting, resistance to compression is applicable to earth electricity and surveys operation in the deep well, and the implantation of kevlar fiber rope makes low resistivity's observation device vertical location trueness error more little, and the observed data is more true than calibration, and one end is sealed in the pit makes earth electricity detection layer and the earth insulation, can detect the running state of earth electricity observation device effectively.
Description
Technical field
This utility model relates to ground electricity observation deep-well cable.
Background technology
The developing history of wires and cables industry is permanent, be widely used, but, existing cable is usually present problems with: mechanical damage, insulation harm, humidified insulation, insulation ag(e)ing are rotten, overheated, the fault of overvoltage, cable etc..Especially for the cable of oil field High Temperature High Pressure horizontal well multiple stage pumping bridging plug perforation construction operation, it is higher to operating environment requirements, there is the problems such as wearability is inadequate, carrying tension intensity recovery ratio poor, data is not high；Particularly deep-well can not use metal device to lift and fix Electrodes In Shallow Wells and carry out the nonmetal ground electricity observation deep-well cable of resistivity observation.
Utility model content
Utility model purpose: for overcoming prior art not enough, this utility model purport is in providing ground electricity observation deep-well cable.
Technical scheme: for solving above-mentioned technical problem, this utility model adopts the following technical scheme that
Ground electricity observation deep-well cable, include successively from inside to outside fibre core, sealant, electro-detection layer, water blocking layer and resistance to compression outer jacket, described fibre core is two, and every fibre core includes ground electricity to outward observe conductor and insulating barrier by interior；Described sealant is filled between insulating barrier and ground electro-detection layer；Being additionally provided with 2 cordage between described water blocking layer and resistance to compression outer jacket, 2 cordage are symmetricly set between water blocking layer and resistance to compression outer jacket.
Under above-mentioned cable shaft, one end is for sealing structure.
Operation principle: this utility model ground electricity observation deep-well cable, for deep-well can not use metal device lifting and fix Electrodes In Shallow Wells carry out resistivity observation nonmetal high intensity ground electricity observation deep-well cable；Cable adopts two core ground electricity observation conductors to add metal ground electro-detection Rotating fields；Ground electricity observation conductor outside have sealant, electro-detection layer, water blocking layer, two bursts of high tensile cordage and resistance to compression outer jacket.Cable carrying rupture pull force, more than 20000N, electro-detection layer down-hole, ground and the earth insulation, can bear the lateral pressure of 50Mpa.
Described cordage is kevlar fiber rope；Having high tensile, corrosion resistance, the feature such as be not turned on, two strands of kevlar fiber ropes of braiding can bear more than 20000N Electrodes In Shallow Wells load for a long time, it is ensured that observation system steady operation.
Described ground electro-detection layer is metal ground electro-detection layer；Can the duty of detection ground electricity electrode, there is the advantages such as antioxidation, conduction velocity be fast simultaneously.
Preferably, electro-detection layer in described ground is silver-plated copper ground electro-detection layer.
Described insulating barrier thinnest point is more than the 90% of nominal thickness, and insulation resistance is more than 15000M Ω km；Insulating barrier insulating properties can be made more good, ground electricity observation conductor can be made fast with entering transmission speed, decay little.
Above-mentioned insulating barrier insulation extrusion process accomplishes that whole continuous punctures without trachoma.
Described ground electro-detection layer D.C. resistance is less than 5 Ω/km, ground, one end, down-hole electro-detection layer and the earth insulation；More than 30Mpa resistant to pressure can be sealed.
Described resistance to compression outer jacket is nylon resistance to compression outer jacket；Cable oil resistant, wear-resisting, resistance to compression can be made, bear the earth more than lateral pressure 50Mpa.
The NM technology of this utility model is prior art.
Beneficial effect: this utility model ground electricity observation deep-well construction of cable is simple, carrying rupture pull force is big, oil resistant, wear-resisting, resistance to compression, operation suitable in ground electricity observation deep-well, the implantation of kevlar fiber rope makes the observation device perpendicular positioning trueness error of low-resistivity more little, observation data are relatively more accurate, and one end, down-hole seals and makes ground electro-detection layer and the earth insulation, can effectively detect the running status of ground electricity observation device.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
In figure, 1 be ground electricity observation conductor, 2 be insulating barrier, 3 be sealant, 4 be ground electro-detection layer, 5 be water blocking layer, 6 be cordage, 7 for resistance to compression outer jacket.
Detailed description of the invention
In order to be more fully understood that this utility model, it is further elucidated with content of the present utility model below in conjunction with embodiment, but content of the present utility model is not limited solely to the following examples.
Embodiment 1
As it is shown in figure 1, ground electricity observation deep-well cable, include successively from inside to outside fibre core, sealant 3, electro-detection layer 4, water blocking layer 5 and resistance to compression outer jacket 7, described fibre core is two, and every fibre core includes ground electricity to outward observe conductor 1 and insulating barrier 2 by interior；Described sealant 3 is filled between insulating barrier 2 and ground electro-detection layer 4；It is additionally provided with 6,2 cordage 6 of 2 cordage between described water blocking layer 5 and resistance to compression outer jacket 7 to be symmetricly set between water blocking layer 5 and resistance to compression outer jacket 7；Cordage 6 is kevlar fiber rope 6；Ground electro-detection layer 4 is silver-plated copper ground electro-detection layer 4；Insulating barrier 2 thinnest point is more than the 90% of nominal thickness, and insulation resistance is more than 15000M Ω km；Ground electro-detection layer 4 D.C. resistance is less than 5 Ω/km, ground, one end, down-hole electro-detection layer 4 and the earth insulation；Resistance to compression outer jacket 7 is nylon resistance to compression outer jacket 7.
This utility model ground electricity observation deep-well cable, for deep-well can not use metal device lifting and fix Electrodes In Shallow Wells carry out resistivity observation nonmetal high intensity ground electricity observation deep-well cable；Cable adopts two core ground electricity observation conductors 1 to add metal ground electro-detection layer 4 structure；Ground electricity observation conductor 1 outside have sealant 3, electro-detection layer 4,5, two bursts of high tensile cordage 6 of water blocking layer and resistance to compression outer jacket 7.Cable carrying rupture pull force, more than 20000N, electro-detection layer 4 down-hole, ground and the earth insulation, can bear the lateral pressure of 50Mpa.
This utility model ground electricity observation deep-well construction of cable is simple, carrying rupture pull force is big, oil resistant, wear-resisting, resistance to compression, operation suitable in ground electricity observation deep-well, the implantation of kevlar fiber rope 6 makes the observation device perpendicular positioning trueness error of low-resistivity more little, observation data are relatively more accurate, and one end, down-hole seals and makes ground electro-detection layer 4 and the earth insulation, can effectively detect the running status of ground electricity observation device.
Claims (7)
1. a ground electricity observation deep-well cable, it is characterized in that: include successively from inside to outside fibre core, sealant (3), electro-detection layer (4), water blocking layer (5) and resistance to compression outer jacket (7), described fibre core is two, and every fibre core is by interior ground electricity observation conductor (1) and the insulating barrier (2) of including to outward；Described sealant (3) is filled between insulating barrier (2) and ground electro-detection layer (4)；Being additionally provided with 2 cordage (6) between described water blocking layer (5) and resistance to compression outer jacket (7), 2 cordage (6) are symmetricly set between water blocking layer (5) and resistance to compression outer jacket (7).
2. electricity observation deep-well cable according to claim 1ly, it is characterised in that: described cordage (6) is kevlar fiber rope (6).
3. electricity observation deep-well cable according to claim 1ly, it is characterised in that: described ground electro-detection layer (4) is metal ground electro-detection layer (4).
4. electricity observation deep-well cable according to claim 3ly, it is characterised in that: described ground electro-detection layer (4) is silver-plated copper ground electro-detection layer (4).
5. the ground electricity observation deep-well cable according to claim 1-4 any one, it is characterised in that: described insulating barrier (2) thinnest point is more than the 90% of nominal thickness, and insulation resistance is more than 15000M Ω km.
6. the ground electricity observation deep-well cable according to claim 1-4 any one, it is characterised in that: described ground electro-detection layer (4) D.C. resistance is less than 5 Ω/km, ground electro-detection layer, one end, down-hole (4) and the earth insulation.
7. the ground electricity observation deep-well cable according to claim 1-4 any one, it is characterised in that: described resistance to compression outer jacket (7) is nylon resistance to compression outer jacket (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620012525.1U CN205354729U (en) | 2016-01-07 | 2016-01-07 | Deep well cable is surveyd to earth electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620012525.1U CN205354729U (en) | 2016-01-07 | 2016-01-07 | Deep well cable is surveyd to earth electricity |
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| Publication Number | Publication Date |
|---|---|
| CN205354729U true CN205354729U (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620012525.1U Active CN205354729U (en) | 2016-01-07 | 2016-01-07 | Deep well cable is surveyd to earth electricity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359003A (en) * | 2017-08-07 | 2017-11-17 | 山东希尔电缆有限公司 | WMF high-intensity high-tenacities adjust charge bearing detecting cable when surveying |
-
2016
- 2016-01-07 CN CN201620012525.1U patent/CN205354729U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359003A (en) * | 2017-08-07 | 2017-11-17 | 山东希尔电缆有限公司 | WMF high-intensity high-tenacities adjust charge bearing detecting cable when surveying |
| CN107359003B (en) * | 2017-08-07 | 2023-05-05 | 山东希尔电缆有限公司 | WMF high-strength high-toughness load-bearing detection cable capable of measuring and adjusting simultaneously |
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