CN208753019U - A kind of optoelectronic composite cable and coiled tubing logging system - Google Patents
A kind of optoelectronic composite cable and coiled tubing logging system Download PDFInfo
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- CN208753019U CN208753019U CN201821570405.9U CN201821570405U CN208753019U CN 208753019 U CN208753019 U CN 208753019U CN 201821570405 U CN201821570405 U CN 201821570405U CN 208753019 U CN208753019 U CN 208753019U
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- composite cable
- optoelectronic composite
- steel wire
- coiled tubing
- pipe
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Abstract
The utility model relates to logging cable technical fields; a kind of optoelectronic composite cable is specifically disclosed; including outer intensity pipe, the interior intensity pipe in outer intensity pipe, invest the conductive layer on interior intensity tube outer surface, the insulating layer between conductive layer and outer intensity pipe, and the optical fiber group being preset in interior intensity pipe and the fiber optic protection medium being filled in interior intensity pipe.A kind of coiled tubing logging system is also disclosed in the utility model, DATA REASONING end, the data collection process end on well including being located at shaft bottom, and the coiled tubing assembly of connection data measurement end and data collection process end, coiled tubing assembly include coiled tubing and the optoelectronic composite cable that is placed in coiled tubing.Power supply and signal transmission together as one are realized, the accuracy of data transfer are substantially improved by the optoelectronic composite cable of the utility model.The coiled tubing logging system of the utility model, the data transmitted by optoelectronic composite cable have more accurate analysis and judgement to underground situation.
Description
Technical field
The utility model relates to logging cable technical field more particularly to a kind of optoelectronic composite cable and coiled tubing well logging systems
System.
Background technique
Lasting exploitation along with the mankind over 150 years to petroleum, natural gas, the routine of global shallow-layer (within 5km depth)
Petroleum resources are increasingly depleted, have been far from satisfying the energy demand of mankind's activity, global Oil Gas exploration in recent years and exploitation
Activity is just rapidly to 7-10km (ultra-deep) stratum, (ultra-deep) extra large oil and gas reservoir and big displacement (overlength) shale gas horizontal well reservoir money
Source strides forward.The cable of bearing detection not only will high temperature, high pressure, high corrosion subsurface environment in realize the stable electricity between ground
Power and signal transmit, and still suffer from the requirement of cable itself with downhole instrument string gravity bring high mechanical strength, are accordingly used in
The exploitation of the overlength charge bearing detecting cable of ultradeep well (7-10km) is a systematic technological challenge.Logging technique is sent out in recent years
Rapidly, terrestrial operation system develops to large composite direction, and the serial downhole instrument of acoustic-electric nuclear-magnetism turns to imagingization comprehensively for exhibition,
The unconventional well section development ratio of ultra-deep overlength more comes about high, and all to traditional cable transmission performance, more stringent requirements are proposed for this.
At present the most of logging cable manufacturers in China only have exploitation shallow-layer oil well charge bearing detecting cable ability, nearly ten thousand
Rice ultradeep well logging cable be China technological gap, the performance of charge bearing detecting cable largely constrain China's oil,
The development of natural gas exploration and excavation industry causes China's oil-gas exploration technology to develop slowly, so designing a kind of suitable for super
The cable of deep-well is urgent problem to be solved at this stage.
Utility model content
For the technical problems in the prior art, the utility model provides a kind of optoelectronic composite cable and coiled tubing is surveyed
Well system.
A kind of optoelectronic composite cable, interior intensity pipe including outer intensity pipe, in outer intensity pipe invest interior intensity pipe appearance
Conductive layer on face, the insulating layer between conductive layer and outer intensity pipe, and the optical fiber group that is preset in interior intensity pipe and
The fiber optic protection medium being filled in interior intensity pipe, in which: optical fiber group is used for optical signal transmission, and conductive layer is passed for electric signal
It is defeated.
Further, optical fiber group includes single mode optical fiber and multimode fibre.
Further, optical fiber group is also serving as distributed sensor.
Further, outer intensity pipe and interior intensity pipe are metal tube.
Further, the end of optoelectronic composite cable further includes sealant, in which: and interior intensity tube end outward flanging is outer strong
Degree tube end inwardly closes up, and outer intensity tube end is longer than interior intensity tube end；Sealant is located on the inside of outer intensity pipe and coats
The flange of interior intensity tube end, sealant are coated on optical fiber group periphery, and optical fiber group end is pierced by sealant.
Further, fiber optic protection medium is the silicon substrate fiber paste of liquid.
Further, conductive layer is copper winding band, copper mesh, thin-wall copper pipe or copper coating.
Further, optoelectronic composite cable further includes outer steel wire and inner steel wire of the armouring outside optoelectronic composite cable,
In: inner steel wire spiral is in the outside of outer intensity pipe, and outer steel wire spiral is in the outside of inner steel wire, outer steel wire and interior armour steel
The hand of spiral of silk is opposite.
Further, outer steel wire and inner steel wire meet: N1T1*(PD+2d1)*sin(2α1)=N2T2*(PD+2d1+
2d2)*sin(2α2), in which: α1For inner steel wire stranding angle, α2For outer steel wire stranding angle, N1For the radical of inner steel wire, N2
For the radical of outer steel wire, T1For pulling force suffered by every inner steel wire, T2For pulling force suffered by every outer steel wire, d1For interior armour steel
The string diameter of silk, d2For the string diameter of outer steel wire, PD is the line footpath of optoelectronic composite cable.
A kind of optoelectronic composite cable of the utility model embodiment, the high-speed channel transmitted using optical fiber group as data will
Power supply and signal transmission together as one are realized, ensure that the power supply of underground survey equipment, measurement data is substantially improved
The accuracy of transmission.
A kind of coiled tubing logging system, the DATA REASONING end including being located at shaft bottom, the data collection process on well
End, and the coiled tubing assembly of connection data measurement end and data collection process end, in which: coiled tubing assembly includes continuous
Oil pipe, and the optoelectronic composite cable being placed in coiled tubing；After DATA REASONING end measures environmental parameter each in well, through light
Surveyed parameter is sent to data collection process end and carries out analytical calculation by photoelectric compound cable.
A kind of coiled tubing logging system of the utility model embodiment is protected using the optoelectronic composite cable of above embodiments
For analyzing in card underground data measuring end data transmission to well collected, the data transmitted also it is more stable with it is accurate,
Survey crew can have more accurate analysis and judgement to underground situation by the data that optoelectronic composite cable transmits on well, make oil well
Production technique is further developed.
Detailed description of the invention
Illustrate the utility model embodiment or technical solution in the prior art in order to clearer, it below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it is clear that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of schematic cross-section of optoelectronic composite cable of the utility model embodiment；
Fig. 2 is a kind of A-A diagrammatic cross-section of optoelectronic composite cable of the utility model embodiment；
Fig. 3 is a kind of schematic cross-section of optoelectronic composite cable of another embodiment of the utility model；
In figure: intensity pipe in the outer intensity pipe of 1-, 2-, 3- conductive layer, 4- insulating layer, 5- optical fiber group, 501- single mode optical fiber,
502- multimode fibre, 6- fiber optic protection medium, 7- sealant, 8- outer steel wire, 9- inner steel wire.
Specific embodiment
Below in conjunction with the attached drawing in the utility model, to the technical scheme in the embodiment of the utility model carry out it is clear,
Complete description, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole implementation
Example.Based on the embodiments of the present invention, those skilled in the art is without making creative work
All other embodiment obtained, belongs to the protection scope of the utility model.
As shown in Figure 1, the utility model embodiment provides a kind of optoelectronic composite cable, the optoelectronic composite cable of the present embodiment includes
Outer intensity pipe 1, the interior intensity pipe 2 in outer intensity pipe 1 invest conductive layer 3 on interior 2 outer surface of intensity pipe, are located at conduction
Insulating layer 4 between layer 3 and outer intensity pipe 1, and the optical fiber group 5 that is preset in interior intensity pipe 2 and be filled in interior intensity pipe 2
Fiber optic protection medium 6, in which: optical fiber group 5 be used for optical signal transmission, conductive layer 3 be used for electric signal transmission.Outside the present embodiment
Intensity pipe 1 and interior intensity pipe 2 provide most mechanical strengths of optoelectronic composite cable；Fiber optic protection medium 6 is for protecting optical fiber
Group 2, reduce optical fiber group 2 be damaged in use and high-temperature condition under hydrogenate bring problem of aging；Insulating layer 4 is used
Stable power circuit is provided in connecing instrument by optoelectronic composite cable one end.The present embodiment is to each component part of optoelectronic composite cable
Material do not do specific restriction, those skilled in the art according to the present embodiment purpose of design achieved voluntarily select material into
Row is made.For the optoelectronic composite cable of the present embodiment in well logging, the high speed transmitted using optical fiber group 5 as data is logical
Power supply and signal transmission together as one are realized, ensure that the power supply of underground survey equipment, measurement is substantially improved by road
The accuracy of data transmission；The unique structure design of optoelectronic composite cable through this embodiment crimps, it can be achieved that being repeated several times, after
And be used for multiple times, increase cable service life, reduces well logging operation cost；The optoelectronic composite cable and underground imager of the present embodiment
Device concatenation makes it possible well logging personnel to the live effect assessment of horizontal well multistage pressure break and field optimizing；The present embodiment
Optoelectronic composite cable can be used in ultra-deep well measurements, solve China's oil-gas exploration technology for this technology bottle of cable performance
Neck.
Specifically, the optical fiber group 5 in the present embodiment includes single mode optical fiber 501 and multimode fibre 502, single mode optical fiber 501
Centre pane core core diameter is generally 9 or 10 μm, can only pass the light of one mode, therefore its intermode dispersion very little, is suitable for long-range
Communication, and single mode optical fiber 501 has a higher requirement to the spectrum width and stability of light source, and the centre pane core of multimode fibre 502
Core diameter is generally 50 or 62.5 μm, can pass the light of various modes, but its intermode dispersion is larger, limits the frequency of transmission signal,
Therefore communication of the multimode fibre 502 suitable for closer distance, generally only several kilometers.So according to single mode optical fiber 501 and multimode
The advantage and disadvantage of optical fiber 502, those skilled in the art voluntarily determine signal transmission according to preset transmission range when specifically used
Used is single mode optical fiber 501 or multimode fibre 502, and the present embodiment is not specifically limited here.The present embodiment is to single-mode optics
Fine 501, the particular number of multimode fibre 502 is not construed as limiting, and those skilled in the art are designed i.e. according to specifically used requirement
It can.
Specifically, the optical fiber group 5 in the present embodiment is also serving as distributed sensor.The distributed sensor of optical fiber type utilizes
Optical fiber mainly scatters class sensing mode as sensing responsive element and signal transmission medium backward, by OTDR technique to light
The light of scattering backward injected in light pulse and reception optical fiber in fibre realizes sensing, external event can to scatter backward light amplitude,
Phase, wavelength (frequency) and polarization state have an impact, using the time difference of incoming signal and return signal calculate case point with
The distance of OTDR, realizes distributed measurement, detects the parameters such as the temperature along optical fiber different location, adaptability to changes.
Specifically, the outer intensity pipe 1 and interior intensity pipe 2 in the present embodiment are metal tube.Metal tube is with higher strong
Degree, in order to undertake most mechanical strengths of optoelectronic composite cable, is chiefly used in surveying by optoelectronic composite cable in this present embodiment
Well, so there is certain length, so during fabrication, in such a way that multistage short distance metal tube carries out laser welding, protecting
Demonstrate,prove the receiving of mechanical strength.Metal tube in the present embodiment can be made of stainless steel or Nickel-Based Steel, those skilled in the art
Other metals with higher-strength also can be selected to be made, do not do specific restriction herein.Interior intensity pipe 2 is made of metal,
The electric conductivity of optoelectronic composite cable can also be improved, it is ensured that the regular supply of electric power.Outer intensity pipe 1 is optoelectronic composite cable and downhole instrument
Face of obturaging is provided when device connects, guarantees that the closing between optoelectronic composite cable and downhole instrument connects.
Specifically, as shown in Fig. 2, the end of the optoelectronic composite cable of the present embodiment further includes sealant 7, in which: interior intensity
2 end outward flanging of pipe, outer 1 end of intensity pipe are inwardly closed up, and outer 1 end of intensity pipe is longer than interior 2 end of intensity pipe；Sealant
7 are located at outer 1 inside of intensity pipe and coat the flange of interior 2 end of intensity pipe, and sealant 7 is coated on 5 periphery of optical fiber group, optical fiber group 5
End is pierced by sealant 7.The sealant 7 of the present embodiment is by the interior intensity pipe 2 and insulating layer 4, fiber optic protection of optoelectronic composite cable
Medium 6 is coated, and prevents fiber optic protection medium 6 from flowing out；Sealant 7 is coated on 5 periphery of optical fiber group and by the end of optical fiber group 5
Expose, be subjected to displacement optical fiber group 5 will not in interior intensity pipe 2, and then guarantee that the length of optical fiber group 5 will not change, protects
Demonstrate,prove the stability of the leakproofness and optical signal transmission when optoelectronic composite cable continued access.Specific composition of the present embodiment to sealant 7
It is not construed as limiting, need to only realize the design requirement of the present embodiment, those skilled in the art are voluntarily selected by experience.
Specifically, the fiber optic protection medium 6 in the present embodiment is the silicon substrate fiber paste of liquid.The fiber optic protection of the present embodiment is situated between
Matter 6 also can be used other padded coamings to be made, such as carbon fiber, not do specific restriction herein.In fiber optic protection medium 6 is filled in
In intensity pipe 2, make optoelectronic composite cable it is mobile when, internal optical fiber group 5 can be realized certain slow by fiber optic protection medium 6
Punching, avoids optical fiber group 5 from being damaged and influence the transmission of signal.
Specifically, the conductive layer 3 in the present embodiment is copper winding band, copper mesh, thin-wall copper pipe or copper coating.Copper material
The electric conductivity of material is relatively preferable, and the conductive layer 3 of other materials also can be selected in those skilled in the art, but it should being most with electric conductivity
Main considerations.The conductive layer 3 of the present embodiment is used for power transmission, so using copper winding band, copper mesh, thin-wall copper pipe
Or any one in copper coating need to only realize the purpose of design of the present embodiment, the present embodiment is to copper winding band, copper
The thickness of net, thin-wall copper pipe or copper coating does not do specific restriction, it is preferred that the conductive layer of the present embodiment is achieved equivalent
Resistance value is not more than 20 ohm.When conductive layer 3 is thin-wall copper pipe, for the production convenient for optoelectronic composite cable, using laser welding
Mode multistage thin-wall copper pipe is welded, to realize the purpose of design of the present embodiment.
Specifically, the insulating layer 4 in the present embodiment is made of insulated non-metal material resistant to high temperature, squeezed by high temperature and pressure
Mould, the present embodiment for insulating layer 4 thickness and concrete composition ingredient without limitation, it is preferred that the thickness of insulating layer 4
Slightly larger than the gap between outer intensity pipe 1 and conductive layer 3, to realize high temperature creep-resisting, specific size those skilled in the art are certainly
Row design.
Specifically, as shown in figure 3, the optoelectronic composite cable of the utility model embodiment, on the basis of above embodiments, this
Embodiment further includes outer steel wire 8 of the armouring outside optoelectronic composite cable and inner steel wire 9, in which: 9 spiral of inner steel wire with
The outside of the optoelectronic composite cable of upper embodiment, i.e., the outside of outer intensity pipe 1,8 spiral of outer steel wire in the outside of inner steel wire 9,
And outer steel wire 8 is opposite with the hand of spiral of inner steel wire 9.The present embodiment optoelectronic composite cable setting outer steel wire 8 with it is interior
Armour steel wire 9 is to avoid optoelectronic composite cable from being broken in order to which optoelectronic composite cable can have stronger protection in the state of by pulling force, will
The hand of spiral of outer steel wire 8 and inner steel wire 9 is arranged on the contrary, being to be avoided as far as possible in order to which optoelectronic composite cable is in stress because of spiral shell
It revolves the effect of the inner steel wire 9 or outer steel wire 8 of setting and twists.The present embodiment is to outer steel wire 8 and inner steel wire 9
Quantity be not construed as limiting, specific restriction is not done yet to the string diameter size of outer steel wire 8 and inner steel wire 9, it is preferred that by outer armour
Steel wire 8 and the quantity of inner steel wire 9 determines by specific design requirement with production technology, under normal circumstances outer steel wire 8
String diameter is greater than the string diameter of inner steel wire 9.It is furthermore preferred that outer steel wire 8 and inner steel wire 9 carry out the structure optimization meter of balance
It calculates, that is, meets: N1T1*(PD+2d1)*sin(2α1)=N2T2*(PD+2d1+2d2)*sin(2α2), in which: α1For inner steel wire at
Cable angle, α2For outer steel wire stranding angle, N1For the radical of inner steel wire, N2For the radical of outer steel wire, T1For every inner steel wire
Suffered pulling force, T2For pulling force suffered by every outer steel wire, d1For the string diameter of inner steel wire, d2For the string diameter of outer steel wire, PD is light
The line footpath of photoelectric compound cable.The restriction for meeting the present embodiment is outer steel wire 8, inner steel wire 9 in maximum safe working stress work
With realizing that balance, i.e. optoelectronic composite cable will not generate any torsion in stress between lower inside and outside armour, no longer needed in well logging
It can achieve the effect that both ends are fixed by the capstan winch of setting on the ground.Domestic existing well logging cable be according to
What the mode for needing both ends fixed was designed, but in the practical operation of oil reservoir logging, the case where ground uses capstan winch, is actually rare,
And then can have biggish security risk, this is the logging operation for needing urgently to correct.So the optoelectronic composite cable of the present embodiment
In well logging, setting capstan winch is not needed, additionally it is possible to which the safety for guaranteeing operator to greatest extent effectively avoids safety accident
Occur, guarantees the service life and reliability of optoelectronic composite cable.
It should be noted that the utility model Figure of description is only the knot to the utility model embodiment optoelectronic composite cable
Structure is shown, and can not be interpreted as the restriction carried out to the size or proportionate relationship of each component part of optoelectronic composite cable.
The utility model also provides a kind of coiled tubing logging system, including being located at the DATA REASONING end in shaft bottom, being located at well
On data collection process end, and connection data measurement end and data collection process end coiled tubing assembly, in which: continuously
Tubing assembly includes coiled tubing, and the optoelectronic composite cable being placed in coiled tubing；DATA REASONING end is joined by environment each in well
After number measures, surveyed parameter is sent to data collection process end through optoelectronic composite cable and carries out analytical calculation.The present embodiment
In optoelectronic composite cable the optoelectronic composite cable in above embodiments can be used, to realize more accurate data transmission.This implementation
Example designs without limitation the specific of data measurement end, and those skilled in the art can refer to the prior art and realize, such as public
The number of opening achieves that this reality for a kind of coiled tubing optical cable well logging apparatus disclosed in the utility model patent of CN206737905U
Apply the purpose of design of example.The present embodiment to the specific design of data collection processing end also without limitation, by computer to being connect
The data received, which carry out analytic operation, just can be obtained the measurement that well is interior or downhole data measurement end is to each environmental parameter, environmental parameter
It may include temperature, pressure, position etc., herein without limitation.The coiled tubing logging system of the present embodiment, using the above reality
The optoelectronic composite cable of example is applied, is guaranteed for analyzing in the data transmission to well collected of underground data measuring end, the number transmitted
According to also it is more stable with it is accurate, survey crew can have underground situation by the data that optoelectronic composite cable transmits more accurate on well
Analysis and judgement, develop oil mining technology further.
The utility model is further described by specific embodiment above, it should be understood that, have here
The description of body, should not be construed as the restriction to the spirit and scope of the utility model, and one of ordinary skilled in the art is readding
The various modifications made after reader specification to above-described embodiment belong to the range that the utility model is protected.
Claims (10)
1. a kind of optoelectronic composite cable, which is characterized in that the optoelectronic composite cable includes outer intensity pipe, is located in the outer intensity pipe
Interior intensity pipe, invest conductive layer on the interior intensity tube outer surface, between the conductive layer and the outer intensity pipe
Insulating layer, and the optical fiber group that is preset in the interior intensity pipe and the fiber optic protection being filled in the interior intensity pipe be situated between
Matter, in which:
The optical fiber group is used for optical signal transmission, and the conductive layer is used for electric signal transmission.
2. a kind of optoelectronic composite cable according to claim 1, which is characterized in that the optical fiber group includes single mode optical fiber and more
Mode fiber.
3. a kind of optoelectronic composite cable according to claim 1, which is characterized in that the optical fiber group is also serving as distributed sensing
Device.
4. a kind of optoelectronic composite cable according to claim 1, which is characterized in that the outer intensity pipe and the interior intensity pipe
It is metal tube.
5. a kind of optoelectronic composite cable according to claim 1, which is characterized in that the end of the optoelectronic composite cable further includes
Sealant, in which:
The interior intensity tube end outward flanging, the outer intensity tube end inwardly close up, and the outer intensity tube end is longer than
The interior intensity tube end；
The sealant is located on the inside of the outer intensity pipe and the flange of the cladding interior intensity tube end, the sealant cladding
In optical fiber group periphery, optical fiber group end is pierced by the sealant.
6. a kind of optoelectronic composite cable according to claim 1, which is characterized in that the fiber optic protection medium is the silicon of liquid
Base fiber paste.
7. a kind of optoelectronic composite cable according to claim 1, which is characterized in that the conductive layer is copper winding band, copper
Net, thin-wall copper pipe or copper coating.
8. a kind of optoelectronic composite cable according to any one of claim 1 to 7, which is characterized in that the optoelectronic composite cable,
It further include outer steel wire and inner steel wire of the armouring outside the optoelectronic composite cable, in which:
The inner steel wire spiral is in the outside of the outer intensity pipe, and the outer steel wire spiral is in the outer of the inner steel wire
Portion, the outer steel wire are opposite with the hand of spiral of the inner steel wire.
9. a kind of optoelectronic composite cable according to claim 8, which is characterized in that the outer steel wire and the inner steel wire
Meet: N1T1*(PD+2d1)*sin(2α1)=N2T2*(PD+2d1+2d2)*sin(2α2), in which: α1For inner steel wire stranding angle,
α2For outer steel wire stranding angle, N1For the radical of the inner steel wire, N2For the radical of the outer steel wire, T1For described in every
Pulling force suffered by inner steel wire, T2For pulling force suffered by outer steel wire described in every, d1For the string diameter of the inner steel wire, d2It is described
The string diameter of outer steel wire, PD are the line footpath of the optoelectronic composite cable.
10. a kind of coiled tubing logging system, which is characterized in that the DATA REASONING end including being located at shaft bottom, the number on well
According to collection processing end, and the coiled tubing assembly at connection the DATA REASONING end and the data collection process end, in which:
The coiled tubing assembly includes coiled tubing, and be placed in the coiled tubing as any in claim 8 to 9
Optoelectronic composite cable described in；
After the DATA REASONING end measures environmental parameter each in well, surveyed parameter is sent to through the optoelectronic composite cable
The data collection process end carries out analytical calculation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201821570405.9U CN208753019U (en) | 2018-09-26 | 2018-09-26 | A kind of optoelectronic composite cable and coiled tubing logging system |
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| CN201821570405.9U CN208753019U (en) | 2018-09-26 | 2018-09-26 | A kind of optoelectronic composite cable and coiled tubing logging system |
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| CN208753019U true CN208753019U (en) | 2019-04-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109119196A (en) * | 2018-09-26 | 2019-01-01 | 广东迅维科技发展有限公司 | A kind of optoelectronic composite cable and coiled tubing logging system |
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2018
- 2018-09-26 CN CN201821570405.9U patent/CN208753019U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109119196A (en) * | 2018-09-26 | 2019-01-01 | 广东迅维科技发展有限公司 | A kind of optoelectronic composite cable and coiled tubing logging system |
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