CN203721372U - Deep well high-speed data transmission system cable - Google Patents
Deep well high-speed data transmission system cable Download PDFInfo
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- CN203721372U CN203721372U CN201420075439.6U CN201420075439U CN203721372U CN 203721372 U CN203721372 U CN 203721372U CN 201420075439 U CN201420075439 U CN 201420075439U CN 203721372 U CN203721372 U CN 203721372U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 36
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- 210000002445 nipple Anatomy 0.000 description 17
- 238000012546 transfer Methods 0.000 description 17
- 238000001514 detection method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
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- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
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- 229930195733 hydrocarbon Natural products 0.000 description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
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- 239000003245 coal Substances 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model relates to a deep well high-speed data transmission system cable and an application method thereof. When the length of a seven-core cable is greater than 3000 meters, high-speed and stable data transmission only can be allowed to be performed with one pair of stranded wires at the same time, that is the seventh core wire and a wire which is adjacent to the seventh core wire, and the first core wire, the second core wire, the third core wire, the fourth core wire, the fifth core wire and the sixth core wire are parallel to each other, so long-line transmission is not easy. The deep well high-speed data transmission system cable is an armour cable having a seven-core cable core structure. The cable comprises a first core wire, a second core wire, a third core wire, a fourth core wire, a fifth core wire, a sixth core wire and a seventh core wire. The first core wire and the second core wire are stranded into a first stranded core wire. The fourth core wire and the fifth core wire are stranded into a second stranded core wire. The first stranded core wire, the third core wire, the second stranded core wire and the sixth core wire are routinely stranded with the seventh core wire separately. According to the utility model, high-speed data transmission can be performed with two stranded wires at the same time, and the deep welldata transmission rate can be improved.
Description
Technical field
the utility model belongs to deep-well DATA REASONING technical field, is specifically related to a kind of cable for deep-well high speed data transmission system.
Background technology
In petroleum gas, unconventional oil gas and coal bed gas field exploration and development, microseism fracturing monitoring logging technique, is a kind of exploration and development new method.When using hydraulic fracturing technology, when hydrocarbon-bearing formation in a few km deep-wells is carried out to high pressure (approximately 40MPa is upper and lower) fracturing, hydrocarbon-bearing formation rock can form more massive fracture network on intrinsic fracture basis, in the time of fracture open or closure, will produce small earthquake (acoustie emission event), by down-hole high sensitivity three-component geophone array received and locate these microseism events, just can survey and draw out fracture network shape, in order to monitor position and the oil-gas migration scope in crack that fracturing forms, with predicting oil/gas output.Because the data of microseism event are all unique, require by extra long distance cable (centre can not repeating) real-time data collection, high-speed transfer, accurately locate and survey and draw.
Also can be used for (Walkaway Vertical Seismic profiling or W-VSP) such as crosshole seismic imaging measurement (Cross well Seismic data imaging) and walkaway VSP exploration engineerings with quasi-instrument.This quasi-instrument is at present almost for example, entirely for import: the Sercel company of France, and its price is domestic 145%; The Avalon company of Britain, it requires high to cable, and fault is many; And the Schlumberger of the U.S. only provides technological service instrument not for sale, its service valency is domestic 2 to 3 times.Therefore, import instrument price and technological service are not only expensive, also have that use and maintenance difficulty, life cycle are short, high in cost of production defect.
In addition, at Geophysical logging, particularly in microseism fracturing monitoring well logging, what require the microseism event once of only producing in stratum hydraulic fracturing process not leak records as far as possible, and this just requires high sample rate, high data transmission rate and low transmission error rates.The transmission rate that 5000 ~ 7000 meters of armoured cable numbers of existing (domestic) long distance pass system is generally 500khz/s, if improve transmission rate because error code (requires error code to be less than 10 too much
-7) and failure.
Referring to Fig. 2: the cable of existing deep-well data transmission system is the armoured cable of 7 core cable core structures, be respectively and be distributed in peripheral 6 heart yearns, centre is heart yearn 7,6 heart yearns are generally stranded relation along clockwise and heart yearn 7, order called after 1st ~ 6 heart yearns, its method of salary distribution is: the 1st, and 7 heart yearns are used for carrying out transfer of data (can reach 500khz/s--7000m, 1mhz/s--5500m); The 2nd, 3 heart yearns pass pipe nipple and 10 grades of reception pipe nipple power supplies (more than 5000M cable immediate current can reach 1A while powering up, the about 83VDC of cable pressure drop) for down-hole number; The 4th heart yearn is used for carrying out CCL, GAMMA power supply and depth survey; The 5th, 6 heart yearns are used for carrying out 10 grades and receive the power supply of pipe nipple backup arm backup motor, braking detection and automatically push away receipts; If use its any two adjacent lines of 3000 meters of cable 500Khz/S all can stable transfer; If 5000m cable 500Khz/S; 1Mhz/S: own centre line, the 7th heart yearn be adjacent line can stable transfer; If use 7000 meters of cable 500Khz/S:, an own centre line the 7th heart yearn is adjacent line can stable transfer.Its maximum shortcoming is to be greater than after 3000 meters when cable length, only can allow to carry out high speed with a pair of twisted wire simultaneously and stablize transfer of data, the 7th heart yearn is adjacent line, because the 7th heart yearn and 1-6 heart yearn are stranded relation, and 1-6 heart yearn is parallel relation each other, be unfavorable for long line transmission.
Summary of the invention
The utility model object is to provide and a kind ofly can uses two pair twist zygonemas to carry out high speed data transfer simultaneously and can improve the cable for deep-well high speed data transmission system of deep-well data transmission rate.
The problem existing for overcoming prior art, the technical scheme that the utility model provides is: a kind of cable for deep-well high speed data transmission system, described cable is the armoured cable of seven core cable core structures, comprise the first heart yearn, the second heart yearn, the 3rd heart yearn, quad, the 5th heart yearn, the 6th heart yearn and the 7th heart yearn, described the first heart yearn, the second heart yearn, the 3rd heart yearn, quad, the 5th heart yearn and the 6th heart yearn are uniform successively along the 7th heart yearn circumferencial direction, described the first heart yearn and the second heart yearn are stranded is the first stranded core, described quad and the 5th heart yearn are stranded is the second stranded core, the first stranded core, the 3rd heart yearn, the second stranded core and the 6th heart yearn are stranded with the 7th heart yearn routine respectively, its stranded distance is that 7.0cm and twisting point stagger successively.
Described cable is the armoured cable of seven core cable core structures, be respectively the first heart yearn, the second heart yearn, the 3rd heart yearn, quad, the 5th heart yearn, the 6th heart yearn and the 7th heart yearn, described the first heart yearn, the second heart yearn, the 3rd heart yearn, quad, the 5th heart yearn and the 6th heart yearn are uniform successively along the 7th heart yearn circumferencial direction, it is characterized in that: described the first heart yearn and the second heart yearn are stranded is the first stranded core, in the 7th heart yearn and the 3rd heart yearn, quad, the 5th heart yearn and the 6th heart yearn arbitrary heart yearn stranded be the second stranded core, its stranded distance is 7.0cm.
Described armoured cable model is W7-11.8-B.
Compared with prior art, the utlity model has following beneficial effect:
1. the utility model is by changing the cable core structure of 7 core armoured cables, by the 1st, 2 heart yearns and the 4th, 5 heart yearns are stranded respectively, realize completing of the stranded and armoured cable of the routine of 7 cable cores, the advantage of such cable is: for 5500 meters of cables, can monitor the well of 5200 meters of following degree of depth again, can contain the more than 80% of existing petroleum gas well depth scope (referring to the transfer rate of 2Mhz/S), expand and optimized the range of application of domestic equipment.To 5500 meters, above to 7000 meters of cables, 1,2 line and 4,5 lines also can reach the transfer rate of 1Mhz/S by two tricks biography systems.The cable of this kind of structure only allows to use a pair of twisted wire to carry out high speed data transfer on original cable simultaneously and transform as and can use two pair twist zygonemas to carry out transfer of data simultaneously, in the situation that not changing original cable size, unit length deadweight and tensile strength, by the function of another 5 cores in original cable, the way of distributing with the static timesharing of moving, locate and the high temperature stabilized voltage power supply that increases in down-hole reduce electric current realization 3 core cables in the aboveground way with high direct voltage transmission and complete, and economize out two core cable stranded for even numbers biography system.
2. the first stranded core and the second stranded core also can reach the transfer rate (former several biography rates are 500Khz/S) of 2Mhz/S by two tricks biography systems, have kept versatility with 7 core standard armoured logging cables, have saved cost;
3. in the utility model, the even numbers of cable link passes system and still continues to use severals biography modes of former successful Application, has ensured reliable and stablely, has lowered cost and has reached again the object that improves number biography rate, and overlapped odd numbers biography systems with two, can improve one times of data transmission rate or three times.
Brief description of the drawings
Fig. 1 is the deep-well that the utility model cable connects
highdata transmission rate system schematic;
Fig. 2 is seven core standard armoured logging cable sectional views.
Wherein: 1. outer armour; 2. interior armour; 3. cable core; 4. the first heart yearn; 5. the second heart yearn; 6. the 3rd heart yearn; 7. quad; 8. the 5th heart yearn; 9. the 6th heart yearn; 10. the 7th heart yearn.
Embodiment
Below in conjunction with embodiment, this patent is described in detail:
Referring to Fig. 2, a kind of cable for deep-well high speed data transmission system, cable is the armoured cable of seven core cable core structures, model is W7-11.8-B, comprises the first heart yearn 4, the second heart yearn 5, the 3rd heart yearn 6, quad 7, the 5th heart yearn 8, the 6th heart yearn 9 and the 7th heart yearn 10, the first heart yearns 4, the second heart yearn 5, the 3rd heart yearn 6, quad 7, the 5th heart yearn 8 and the 6th heart yearn 9 are uniformly distributed successively along the 7th heart yearn 10 circumference clockwise directions, and the first heart yearn 4 and the second heart yearn 5 are stranded is the first stranded core, and quad 7 and the 5th heart yearn 8 are stranded is the second stranded core, the first stranded core, the second stranded core, the 3rd heart yearn 5 and the 6th heart yearn 9 and the 7th heart yearn 10(center line) stranded routinely, first, two heart yearns are stranded is that the first stranded core is adjacent with the 3rd heart yearn 6 again with the 4th, five heart yearns are stranded be the second stranded core adjacent again with the 6th heart yearn 9 adjacent set become band heart yearn again with the 7th heart yearn 10(center line) stranded routinely, stranded distance is that 7.0cm and twisting point stagger successively.After stranded, the stability of impedance has improved, and impedance balance degree has over the ground improved, and has reached the target that improves transfer rate, minimizing interference, increases transmission range.
The structure of the armoured cable of another kind of seven core cable cores be the first heart yearn 4 and the second heart yearn 5 stranded be the first stranded core, in the 7th heart yearn 10 and the 3rd heart yearn 6, quad 7, the 5th heart yearn 8 and the 6th heart yearn 9 arbitrary heart yearn stranded be the second stranded core, its stranded distance is 7.0cm.
Referring to Fig. 1: the using method of the above-mentioned cable for deep-well high speed data transmission system, the two cover odd numbers that comprise high temperature stabilized voltage power supply and connect respectively by above-mentioned cable pass system, every cover odd number biography system comprises that down-hole number passes pipe nipple and aboveground number passes pipe nipple, the high temperature resistant one pole number in first group of down-hole being connected with CPU passes pipe nipple and connects after the first stranded core of more than 5500 meters twisted cable, being connected with aboveground unit number biography pipe nipple, by CPU and USB interface, data are delivered to ground host machine; In like manner, the high temperature resistant one pole number in second group of down-hole being connected with CPU passes pipe nipple and connects after the second stranded core of more than 5500 meters twisted cable, passing pipe nipple with aboveground unit number is again connected, by CPU and USB interface, data are delivered to ground host machine, above-mentioned every cover odd number passes its input and output of system and is respectively time break, order and the status word that subsurface passes and being gathered by each collection pipe nipple (more than 10 grades) of being uploaded by down-hole, the mass data being transmitted by RS485 bus, data per second can reach 4,320,000bit/S.This cable application also can completed well wherein in a set of odd number biography system time in Fig. 1 on and downhole data transmission, and can maintain legacy data transfer rate.
The 3rd heart yearn and the 6th heart yearn----10 grades receive the power supply of pipe nipple backup arm backup motor, braking detection and automatically push away receipts; In the time of system motion, carry out CCL by the 3rd heart yearn, GAMMA power supply and depth survey; In the time that instrument puts in place, the 3rd, six heart yearns also receive the power supply of pipe nipple backup arm backup motors with carrying out 10 grades, and time delay backups at different levels are also received arm after collection finishes simultaneously;
The 7th heart yearn----transfer of data and the power supply of 10 grades of reception pipe nipples, the way that adopts cable transfer of 180VDC to be transformed to again 23VDC to down-hole realizes down-hole number biography and receives pipe nipple array and adopts time delays at different levels to power up mode, and the pressure drop that the electric current on cable core causes below 100ma is like this also little;
The 3rd, seven, six heart yearns and armouring crust play shielding action to the Double Data transmission system of the first stranded core and the second stranded core.
In the utility model, cable model used is W7-11.8-B, armouring external diameter 11.8mm, tensile strength 6.7KN, weight 430(kg/km), edge electricity resistance≤200(m Ω .km absolutely), straight stream electricity resistance≤30 Ω/km, cable core wire diameter 0.56mm
2, heatproof-30-+150 DEG C (or 200 DEG C).
Operation principle of the present utility model is: (1) down-hole number passes pipe nipple: the CPU that down-hole number passes in joint receives first byte from 485 buses, give first group of odd number by it and pass system, in the time that it receives second byte, give second group of odd number by it and pass system, so repeatedly, until counted.
(2) ground number passes system: the CPU of ground system first monitors the DRDY1 of first group of odd number biography system, when it is true time, reads a byte as first byte from its data port.Then the DRDYZ2 that monitors immediately odd number biography system 2, when it is true time, reads a byte from its data port.Deposit buffering area in as second byte.So repeatedly, until counted.
(3) the accurate depthkeeping function of the original CCL in down-hole, GAMMA and original backup power supply and braking measuring ability adopt the way that timesharing is carried out to merge with two cables (classification time delay backup immediate current can reach 1A); Original pipe nipple power supply, adopts cable transfer of 180VDC to down-hole, and the way that is transformed to 23VDC with high temperature resistant DC-DC realizes, and a now cable current≤100mA passes and receive the power supply of pipe nipple battle array classification time delay row to down-hole number.
Result of the test is as follows:
Taking 0.5 millisecond of sample rate of 10 grades of three-components (30 monitoring roads) data in 3 second as example: single-stage three-component: 36 of every components (bit), 108 of single-stages, 3 seconds, the data volume of 0.5 millisecond of sample rate was 6k × 108bit=648, current every grade of transmission time of 000bit is 648,000 × 2 μ S=1,296,000 10 grades of three-component transmission times of μ S ≈ 1.3S were about for 13 seconds, and existing several biography rate situation may be missed 77% microseism pressure break event.If number biography rate is every grade of transmission time 0.32S of 2MHz/S, 10 grades of three-component transmission times be about 3.2 second .94% microseism pressure break event can detect, if with 8 grades of three-components detections (transmission time was about for 2.56 seconds), just can accomplish that real-time 100% detects.
Adopt after cable of the present utility model, and cable length to 5500 meter, the speed that existing odd number can be passed to system be brought up to 1MHZ/, and can reach 2MHZ/S (three times of quite former data transmission rates) by the transmission rate of two tricks biography systems.
Claims (3)
1. the cable for deep-well high speed data transmission system, described cable is the armoured cable of seven core cable core structures, comprise the first heart yearn (4), the second heart yearn (5), the 3rd heart yearn (6), quad (7), the 5th heart yearn (8), the 6th heart yearn (9) and the 7th heart yearn (10), described the first heart yearn (4), the second heart yearn (5), the 3rd heart yearn (6), quad (7), the 5th heart yearn (8) and the 6th heart yearn (9) are uniform successively along the 7th heart yearn (10) circumferencial direction, it is characterized in that: described the first heart yearn (4) and the second heart yearn (5) are stranded is the first stranded core, described quad (7) and the 5th heart yearn (8) are stranded is the second stranded core, the first stranded core, the 3rd heart yearn (6), the second stranded core and the 6th heart yearn (9) are conventional stranded with the 7th heart yearn (10) respectively, its stranded distance is that 7.0cm and twisting point stagger successively.
2. the cable for deep-well high speed data transmission system, described cable is the armoured cable of seven core cable core structures, be respectively the first heart yearn (4), the second heart yearn (5), the 3rd heart yearn (6), quad (7), the 5th heart yearn (8), the 6th heart yearn (9) and the 7th heart yearn (10), described the first heart yearn (4), the second heart yearn (5), the 3rd heart yearn (6), quad (7), the 5th heart yearn (8) and the 6th heart yearn (9) are uniform successively along the 7th heart yearn (10) circumferencial direction, it is characterized in that: described the first heart yearn (4) and the second heart yearn (5) are stranded is the first stranded core, the 7th heart yearn (10) and the 3rd heart yearn (6), quad (7), in the 5th heart yearn (8) and the 6th heart yearn (9) arbitrary heart yearn stranded be the second stranded core, its stranded distance is 7.0cm.
3. a kind of cable for deep-well high speed data transmission system according to claim 1 and 2, is characterized in that: described armoured cable model is W7-11.8-B.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420075439.6U CN203721372U (en) | 2014-02-21 | 2014-02-21 | Deep well high-speed data transmission system cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420075439.6U CN203721372U (en) | 2014-02-21 | 2014-02-21 | Deep well high-speed data transmission system cable |
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| CN203721372U true CN203721372U (en) | 2014-07-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103824645A (en) * | 2014-02-21 | 2014-05-28 | 西安弘传科技开发有限责任公司 | Cable for deep well high-speed data transmission system and using method thereof |
| CN104314557A (en) * | 2014-08-23 | 2015-01-28 | 中国石油集团渤海钻探工程有限公司 | Data transmission method for underground single-core long cable communication |
| CN105672979A (en) * | 2015-12-28 | 2016-06-15 | 西安弘传科技开发有限责任公司 | Access method of seven-core armoured cable for well logging |
-
2014
- 2014-02-21 CN CN201420075439.6U patent/CN203721372U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103824645A (en) * | 2014-02-21 | 2014-05-28 | 西安弘传科技开发有限责任公司 | Cable for deep well high-speed data transmission system and using method thereof |
| CN103824645B (en) * | 2014-02-21 | 2016-05-11 | 西安弘传科技开发有限责任公司 | A kind of cable for deep-well high speed data transmission system and using method |
| CN104314557A (en) * | 2014-08-23 | 2015-01-28 | 中国石油集团渤海钻探工程有限公司 | Data transmission method for underground single-core long cable communication |
| CN104314557B (en) * | 2014-08-23 | 2017-02-01 | 中国石油集团渤海钻探工程有限公司 | Data transmission method for underground single-core long cable communication |
| CN105672979A (en) * | 2015-12-28 | 2016-06-15 | 西安弘传科技开发有限责任公司 | Access method of seven-core armoured cable for well logging |
| CN105672979B (en) * | 2015-12-28 | 2018-05-15 | 西安弘传科技开发有限责任公司 | The cut-in method of 7 core armored cables of well logging |
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Granted publication date: 20140716 |