A cable for deep well high-speed data transmission system and its application method
A high-speed data transmission and cable technology, applied in the direction of double-stranded/quad-stranded cables, etc., can solve problems such as unfavorable long-term transmission, and achieve the effect of optimizing the scope of application and saving costs
Active Publication Date: 2016-05-11
XIAN HONGCHUAN SCI & TECH DEV
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Problems solved by technology
Its biggest shortcoming is that when the cable length is greater than 3000 meters, only a pair of twisted wires can be used for high-speed and stable data transmission at the same time, that is, the 7th core wire and its adjacent wires, because the 7th core wire and the 1-6 core wires It is a twisted relationship, and the 1st-6th core wires are in a parallel relationship with each other, which is not conducive to long-term transmission
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[0018] Below in conjunction with specific embodiment this patent is described in detail:
[0019] see figure 2 , a cable for deep mine high data transmission system, the cable is an armored cable with a seven-core cable core structure, the model is W7-11.8-B, including the first core wire 4, the second core wire 5, and the third core wire 6. The fourth core wire 7, the fifth core wire 8, the sixth core wire 9 and the seventh core wire 10, the first core wire 4, the second core wire 5, the third core wire 6, the fourth core wire 7, The fifth core wire 8 and the sixth core wire 9 are evenly distributed clockwise along the circumference of the seventh core wire 10, the first core wire 4 and the second core wire 5 are stranded to form the first stranded core wire, and the fourth core wire 7 and the fifth core wire 8 are twisted into the second twisted core wire, the first twisted core wire, the second twisted core wire, the third core wire 6 and the sixth core wire 9 and the seve...
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Abstract
The invention relates to a cable for a deep well high-speed data transmission system and a using method thereof. When the length of a seven-core cable is larger than 3000 meters, a pair of twisted wires is only allowed to be used for conducting high-speed stable data transmission, namely a seventh core wire and the adjacent core wire are in parallel, and the other six cable cores are in parallel to one another, so that long-line transmission can not be achieved easily. According to the cable for the deep well high-speed data transmission system and the using method thereof, the cable is an armour cable of a seven-cable-core structure and comprises a first core, a second core wire, a third core wire, a fourth core wire, a fifth core wire, a sixth core wire and the seven core wire. The first core wire and the second core wire are twisted to form a first twisted core wire, the fourth core wire and the fifth core wire are twisted to form a second twisted core wire, and the first twisted core wire, the third core wire, the second twisted core wire and the sixth core wire are respectively twisted with the seventh core wire conventionally. According to the cable for the deep well high-speed data transmission system and the using method thereof, two pairs of twisted wires can be simultaneously used for conducting high-speed data transmission, and the deep well data transmission rate can be improved.
Description
technical field [0001] The invention belongs to the technical field of deep well data measurement, and in particular relates to a cable used in a deep well high-speed data transmission system and a using method. Background technique [0002] In the exploration and development of oil and gas, unconventional oil and gas and coalbed methane fields, micro-seismic hydraulic fracturing monitoring and logging technology is a new method of exploration and development. When hydraulic fracturing technology is used to perform high-pressure (about 40MPa) hydraulic fracturing on oil-gas-bearing formations in wells several thousand meters deep, rocks in oil-gas-bearing formations will form larger-scale fracture networks on the basis of natural fractures. When it is opened or closed, tiny natural earthquakes (acoustic emission events) will be generated. Using the downhole high-sensitivity three-component geophone array to receive and locate these micro-seismic events, the shape of the frac...
Claims
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IPC IPC(8): H01B11/02
Inventor姚正典万文曼赵炜
OwnerXIAN HONGCHUAN SCI & TECH DEV