CN201181603Y - Special top-driving cable for oil field - Google Patents
Special top-driving cable for oil field Download PDFInfo
- Publication number
- CN201181603Y CN201181603Y CNU2008200121699U CN200820012169U CN201181603Y CN 201181603 Y CN201181603 Y CN 201181603Y CN U2008200121699 U CNU2008200121699 U CN U2008200121699U CN 200820012169 U CN200820012169 U CN 200820012169U CN 201181603 Y CN201181603 Y CN 201181603Y
- Authority
- CN
- China
- Prior art keywords
- cable
- different
- oil field
- conductor
- section
- 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 - Lifetime
Links
- 239000004020 conductor Substances 0.000 claims abstract description 27
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 239000003063 flame retardant Substances 0.000 description 8
- 239000011521 glass Substances 0.000 description 4
- 229920001084 poly(chloroprene) Polymers 0.000 description 4
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
- H01B7/046—Flexible cables, conductors, or cords, e.g. trailing cables attached to objects sunk in bore holes, e.g. well drilling means, well pumps
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a top drive cable exclusively for an oil field, in which conductors with the same section and the same voltage step in one cable are arranged on the same circumference, and the conductors with different sections and different voltage steps in one cable are arranged on the different circumferences. The section of the cable is in a concentric circle structure. The conductors with the different sections and the different voltages steps are separated by a cushion coat. At the same time, the ratio of pitch and outer diameter is controlled between 12 and 13 times. The utility model has the advantages of compact structure, less cable core abrasion and reduced cable diameter. The ratio of the pitch and the outer diameter is controlled within bounds, which ensures the mobility of the cable. The problems that insulation is cracked because of stress and the conductor is broken in the use process of the connection cable in oil field drilling are solved; hidden dangers are eliminated; the manpower and material resources used on cable maintenance are reduced; and a great deal of cost and time are saved.
Description
Technical field
The utility model relates to flexible cable, relates more specifically to a kind of top drive cable special for oil field.
Background technology
The oil field is located in desert or Gobi desert, geographical environment is very abominable, oil exploitation need be used extraordinary flexible cable, flexible cable is except needs have characteristic such as fire-retardant, low temperature resistant, ageing-resistant, because the work of oil recovery drilling equipment drive part the time frequently moves back and forth up and down, require the circumnutate test of cable softness by 300,000 times.Form at present power cable in the flexible cable, control cable, telecommunication cable etc. and adopt the grouping strandings, it is big that each organizes between the cable core slit, in the cable mutual abrasion of process that frequently circumnutates, influences useful life; The cable footpath is thick, the cable poor mobility.
The utility model content
The purpose of this utility model provides a kind of top drive cable special for oil field, adopts the stranded mode of regular arrangement, dwindles the cable footpath, reduces abrasion.
For solving the problems of the technologies described above, the measure that the utility model is taked be with the conductor of different cross section and the conductor arrangement of using different electric pressures on different circumference, make the cable cross section be the concentric circles structure.
At the conductor of different cross section and use and adopt bed course to keep apart between the different electric pressure conductors.
Ratio with the cable pitch and the outside diameter of cable is controlled at 12～13 times simultaneously.
The utlity model has following beneficial effect:
Adopt the stranded mode shape of regular arrangement to make the cable cross section be the concentric circles distribution, structure is very compact, and the cable core relative wear is little; New construction overcoat diameter reduces 2 millimeters than original structure overcoat diameter, and cable directly reduces, lay ratio (ratio of pitch and external diameter) " be controlled at 12～13 times, guaranteed cable mobility.
Description of drawings
With embodiment the utility model is described in further detail in conjunction with the accompanying drawings.
The former cable cross section structure of Fig. 1 figure
Fig. 2 the utility model top drive cable special for oil field cross section structure figure
Symbol description among the figure: neoprene sheath 1, fireproof glass silk strap 2, adhesive tape and mineral wool rope filler 3, tinned wird 56/0.30 conductor 4, ethylene propylene rubber insulated 5, tinned wird 30/0.25 conductor 6, fire retardant jacket 7, fire-retardant bed course 8, tinned wird 56/0.03 conductor 9.
Embodiment:
Fig. 1 Central Plains cable cross section structure as seen, in the cable by tinned wird 56/0.30 conductor 4 twisted cables with adopt the grouping stranding by cables such as tinned wird 30/0.25 conductor 6 twisted cables, each organizes between the cable core, it is bigger respectively to organize between cable core and the neoprene sheath 1 slit, activity coefficient in the neoprene sheath 1 is little, each is organized cable core and is easy to become flexible, need to fill a large amount of adhesive tape and mineral wool rope filler 3, neoprene sheath 1 external diameter reaches 28 millimeters.
As seen the new cable cross section structure adopts conductor arrangement that the stranded mode shape of regular arrangement makes the conductor of different cross section and use different electric pressures on different circumference among Fig. 2, and the cable cross section is the concentric circles structure; At the conductor of different cross section and use and adopt fire-retardant bed course 8 to keep apart between the different electric pressure conductors; For the mobility that guarantees cable " lay ratio (ratio of pitch and external diameter) " of each procedure is controlled at 12～13 times simultaneously.
Concrete is to extrude ethylene propylene rubber insulated 5 on tinned wird 30/0.25 conductor 6, by the stranded stranding of cabler, use fireproof glass silk strap 2 to carry out wrapped tightening simultaneously, the stranding cable is arranged on the peripheral circumferential at cable center and center, again the cable on the peripheral circumferential is passed through the stranded stranding of cabler, and extrude fire-retardant bed course 8 in the stranding outside.On tinned wird 56/0.03 conductor 9, extrude ethylene propylene rubber insulated 5, by the stranded stranding of cabler, use fireproof glass silk strap 2 to carry out wrapped tightening simultaneously, stranded cable conductor is arranged on fire-retardant bed course 8 excircles, carry out outer stranding cable again, use fireproof glass silk strap 2 wrapped tightening simultaneously, dress fire retardant jacket 7, fire retardant jacket 7 external diameters reach 26 millimeters; " lay ratio (ratio of pitch and external diameter) " of cable is 12 times.
The new cable structure is very compact, and the cable core relative wear is little; Cable directly reduces, the ratio of pitch and external diameter is controlled in the allowed band, guaranteed cable mobility; Solved oil well probing etc. and connected with cable in use, situations such as stress cracking, conductor broken string appear in insulation, have eliminated potential safety hazard, reduce the maintenance of man power and material to cable, save a large amount of expenses and time.
Claims (4)
1. top drive cable special for oil field, the conductor of different cross section and use the conductor of different electric pressures to extrude the cable that respectively is twisted into different size behind the rubber-covered respectively, it is characterized in that, on different circumference, make the cable cross section be the concentric circles structure conductor of different cross section and the conductor arrangement of using different electric pressures.
2. according to the described a kind of top drive cable special for oil field of claim 1, it is characterized in that, at the conductor of different cross section and use and adopt bed course to keep apart between the different electric pressure conductors.
3. according to the described a kind of top drive cable special for oil field of claim 1, it is characterized in that the ratio of the cable pitch and the outside diameter of cable is controlled at 12～13 times.
4. according to the described a kind of top drive cable special for oil field of claim 3, it is characterized in that the ratio of the cable pitch and the outside diameter of cable is controlled at 12 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200121699U CN201181603Y (en) | 2008-04-14 | 2008-04-14 | Special top-driving cable for oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200121699U CN201181603Y (en) | 2008-04-14 | 2008-04-14 | Special top-driving cable for oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201181603Y true CN201181603Y (en) | 2009-01-14 |
Family
ID=40251099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200121699U Expired - Lifetime CN201181603Y (en) | 2008-04-14 | 2008-04-14 | Special top-driving cable for oil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201181603Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO20110065A1 (en) * | 2011-01-14 | 2012-02-27 | Aker Mh As | Cable device for coupling between a top drive unit and a derrique unit, and a method for providing such a cable device |
-
2008
- 2008-04-14 CN CNU2008200121699U patent/CN201181603Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO20110065A1 (en) * | 2011-01-14 | 2012-02-27 | Aker Mh As | Cable device for coupling between a top drive unit and a derrique unit, and a method for providing such a cable device |
| NO331694B1 (en) * | 2011-01-14 | 2012-02-27 | Aker Mh As | Cable device for coupling between a top drive unit and a derrick unit, and a method for providing such a cable device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Gao Chenghan Document name: Review of business letter |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090114 |
|
| CX01 | Expiry of patent term |