CN2743940Y - Sealed logging cable - Google Patents
Sealed logging cable Download PDFInfo
- Publication number
- CN2743940Y CN2743940Y CN 200420109031 CN200420109031U CN2743940Y CN 2743940 Y CN2743940 Y CN 2743940Y CN 200420109031 CN200420109031 CN 200420109031 CN 200420109031 U CN200420109031 U CN 200420109031U CN 2743940 Y CN2743940 Y CN 2743940Y
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- CN
- China
- Prior art keywords
- cable
- sealed
- logging cable
- logging
- pipe
- 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
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Abstract
The utility model relates to a sealed logging cable which is formed by that the outside of an insulation wire is covered by a sealed metal armoring pipe. The sealed logging cable has the advantages that the diameter of the sealed logging cable is smaller than a half of the diameter of the wire armoring cable, and the section area of the sealed logging cable is not more than a quarter of the wire armored cable. The sealed logging cable is compact, light, wear-resistant, insulated, and reliable without water leaking, which can bear the lateral mechanical force and extend the service life. The utility model can be widely used for the operations of logging, hole shooting and core fetching of the super-deep oil gas wells, and can also be used for the oceanographic survey, the hydrographic surveys of rivers, harbors and water conservancy, the coal field geological survey, the terrestrial heat logging, etc.
Description
Affiliated technical field
The utility model relates to a kind of cable with armouring, promptly a kind of sealing logging cable.
Background technology
Logging cable is at the well logging of super dark oil gas well, perforation, gets in the operations such as core, and electric signal parameters such as being connected end probe, transducer is transferred to important communication material on the ground instrument.The widely used logging cable of China belongs to steel wire armored cable at present.The basic structure of this cable is as the armoring material protective layer, to strengthen its appearance mechanical strength, though protected cable core to avoid the damage of mechanical force to a certain extent in the stranded layer of steel wire of the periphery of insulated conductor.But the weak point one of this steel wire armored cable is that external diameter is thicker, seems too fat to move, heavy, and from great, the not compact of cable makes corresponding logging winch bulky, is awkward, and be incompatible with modernized small intelligent logger; The 2nd, only be arranged side by side between each root steel wire of the stranded wire armoring layer of the outsourcing of this cable, there is not adhesion each other, can not tolerate the bump of side direction mechanical force, one bump promptly flat, when cable winding, produce relative displacement between the insulating barrier of armouring wire and cable core conductor and the insulating barrier of grinding away, shorten cable useful life; The 3rd, the blow-by of wire armoring stranded layer, the water capacity easily seeps water in cable from the slit between steel wire, poor insulativity.
Summary of the invention
In order to overcome the too fat to move, heavy and not compact of existing wire armoring type logging cable, can not tolerate side direction mechanical force and easily infiltration, poor insulativity, not wear-resisting, useful life is short etc. deficiency, the utility model provides a kind of sealing logging cable, makes that its compact conformation, volume are small and exquisite, reliable, long service life are not seeped water, insulate in sealing.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of sealing logging cable is to coat sealing metal armouring pipe outside insulated conductor, this pipe can be a thin-wall stainless steel, also can be copper pipe, aluminum pipe or other suitable metal pipe material, the number of plies of its armouring can be one deck, two-layer or multilayer, between the inboard of the insulated conductor outside and armouring metal tube, can also sandwich the screen of one deck tubulose, the material of this screen can be the tinned wird braid, also can be other suitable shielding material.
The beneficial effect of the utility model product be thin-walled sealed metal tube armouring than steel wire armored cable diameter half as large more than, reduced cross-sectional area is to 1/4th of not enough steel wire armored cable, make cable very compact, light and handy, can tolerate the side direction mechanical force, insulation is reliable, wear-resistant, useful life, significant prolongation reduced material consumption and use cost.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a kind of cross section enlarged drawing of multicore sealing logging cable.Among the figure: 1. internal layer sealing metal armouring pipe, 2. outer sealing metal armouring pipe, 3. screen, 4. insulating barrier, 5. silver-plated (tin) copper stranded conductor, the 6. theoretical space between insulated conductor.
Embodiment
Fig. 1 is a kind of cross section of multicore sealing logging cable, the insulated conductor that is made of wire stylet (5) and insulating barrier (4) coats sealing metal armouring pipe (1) (2) outward, sealing metal armouring pipe can be a stainless steel tube, it also can be copper pipe, aluminum pipe or other suitable metal pipe material, with stainless steel tube is good, its number of plies can be one deck, two-layer or multilayer, present embodiment is two-layer stainless steel armouring seven core cable, can also sandwich one deck tubular shielding layer (3) between the inboard of the outside of insulated conductor (4) (5) and sealing metal armouring pipe (1), the material of this screen (3) is the tinned wird braid, also can be with other suitable shielding material.Make the insulated conductor extrusion in the space between the insulated conductor of the inboard of sealing metal armouring pipe or screen after sealing metal armouring pipe welding drawing, between insulated conductor and the theoretical space between insulated conductor and metal armouring inside pipe wall has not existed basically.Make this armoured cable volume littler compacter.
Claims (3)
1. a sealing logging cable coats armoring material outward by insulated conductor and forms, and it is characterized in that coating outside insulated conductor sealing metal armouring pipe.
2. sealing logging cable according to claim 1 is characterized in that described sealing metal armouring pipe can be a stainless steel tube, also can be copper pipe, aluminum pipe or other suitable metal pipe material, and its number of plies can be one deck, two-layer or multilayer.
3. sealing logging cable according to claim 1, it is characterized in that between the inboard of the insulated conductor outside and sealing metal armouring pipe, can also sandwiching one deck tubular shielding layer, the material of this screen can be the tinned wird braid, also can be other suitable shielding material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109031 CN2743940Y (en) | 2004-11-18 | 2004-11-18 | Sealed logging cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109031 CN2743940Y (en) | 2004-11-18 | 2004-11-18 | Sealed logging cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2743940Y true CN2743940Y (en) | 2005-11-30 |
Family
ID=35633957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420109031 Expired - Fee Related CN2743940Y (en) | 2004-11-18 | 2004-11-18 | Sealed logging cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2743940Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101640080B (en) * | 2008-07-29 | 2011-08-31 | 上海长顺电梯电缆有限公司 | Cable for elevator encoder |
| CN102623103A (en) * | 2012-03-27 | 2012-08-01 | 大连方元特种电缆制造有限公司 | Steel pipe type cable |
| CN103854758A (en) * | 2012-11-30 | 2014-06-11 | 林凤俊 | Cable for sensor |
-
2004
- 2004-11-18 CN CN 200420109031 patent/CN2743940Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101640080B (en) * | 2008-07-29 | 2011-08-31 | 上海长顺电梯电缆有限公司 | Cable for elevator encoder |
| CN102623103A (en) * | 2012-03-27 | 2012-08-01 | 大连方元特种电缆制造有限公司 | Steel pipe type cable |
| CN103854758A (en) * | 2012-11-30 | 2014-06-11 | 林凤俊 | Cable for sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |