Method and device for underground multicore optical cable fast connection
A technology for optical cable joints and optical cables, applied in the coupling of optical waveguides, fiber mechanical structure, etc., can solve the problems of different lengths of exposed optical fibers, loss, communication quality problems, etc., to improve work efficiency, ensure communication quality, and improve reliability. Effect
Active Publication Date: 2014-05-28
重庆峰丽能源技术有限公司
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This means that when the optical fiber is welded, the probability of one-time success must be satisfied. Otherwise, the length of the exposed optical fiber may vary, which directly causes the longest optical fiber to be bent inside the tube, causing loss and communication quality problems.
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[0054] In order to further illustrate the technical means and functions adopted by the present invention to achieve the predetermined invention purpose, the structure and working process of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.
[0055] Such as image 3 , Figure 5 Shown is one of the embodiments of the present invention, in this embodiment, a kind of equipment that is used for downhole multi-core optical cable fast connection, comprises the optical cable splice protector 2 that carries out closed protection to the end of optical cable to be connected, and in Optical cable extension protection box 3 for optical cable extension at the installation site; optical fiber jumpers are connected to the end of the optical cable to be connected, and the optical fiber of a predetermined length is exposed after the jumper is stripped of the outer protective layer, and the optical cable connector protect...
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The invention discloses a method for underground multicore optical cable fast connection. The method comprises the steps that an optical cable to be continued is connected with optical fiber jumpers in advance; the optical fibers of the jumpers and the optical fibers of the optical cable are welded; a protection casing is used for dispensing protection; after an outer protection layer of the open end of each jumper is stripped, the optical fibers of predetermined length are bare; an optical cable joint protection device is used for closed protection; when joint continuing is carried out at an installation site, the optical cable joint protection device is removed; the jumpers are respectively introduced into an optical cable continuing protection box; the redundant jumper is wound on a round table in the box; the bare optical fibers are in butt joint, and a communication quality test is carried out; after the test is completed, compression is carried out through an optical cable joint clamp block; a box cover is put and a seal pressure test is carried out; and if leakage does not exist, continuing is completed.
Description
technical field [0001] The invention relates to a method for quick connection of downhole multi-core optical cables, in particular to a connection method for communication optical cables used in an oil well monitoring system. The invention also relates to a device for quick connection of underground multi-core optical cables. Background technique [0002] Ordinary oil wells usually enter about 3000 meters underground. The temperature and pressure in oil wells in different regions are different. Taking the Bohai Sea area as an example, the temperature is 150 degrees and the pressure is about 70 MPa. Therefore, the optical fiber monitoring system must enter the underground. The durability of the entire system The temperature and pressure resistance performance must be consistent, especially for the protection of the breakpoint and connection of the optical cable, corresponding requirements are put forward. The multi-core optical cable used in the monitoring system in the oil ...
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Inventor 任峰德唐文波安义郭武兵
Owner 重庆峰丽能源技术有限公司