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Photoelectric composite optical cable for oil well and production method thereof

A photoelectric composite, oil well technology, applied in the direction of insulated cables, communication cables, flexible cables, etc., to achieve the effect of good high and low temperature resistance, small cable diameter, and good high temperature resistance

Pending Publication Date: 2018-06-22
SHANDONG PACIF OPTICS FIBER & CABLE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a photoelectric composite optical cable for oil wells and its production method, which is used to solve the technical problems of improving the reliability of the photoelectric composite optical cable and facilitating production

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  • Photoelectric composite optical cable for oil well and production method thereof
  • Photoelectric composite optical cable for oil well and production method thereof

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Embodiment Construction

[0023] In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings. It should be noted that components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and techniques are omitted herein to avoid unnecessarily limiting the present invention.

[0024] Such as figure 1 with figure 2 As shown, a photoelectric composite optical cable for oil wells includes an optical fiber unit, a conductor unit, a filling unit, a covering unit and an armoring unit. The optical fiber unit is located in the middle of the composite optical cable, and includes a polyimide-coated optical fiber 1 and a stainless steel tube 2 for housing the optical fiber 1; a high-temperature hydrogen-absorbing fiber is filled between the stainless steel tube 2 and the optical fiber 1 Paste 4; the stain...

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Abstract

The purpose of the invention is to provide a photoelectric composite optical cable for an oil well and a production method thereof. The method is used for solving the technical problem of improving the reliability of the photoelectric composite optical cable and facilitating the production. The cable comprises an optical fiber unit, a conductor unit, a filling unit, a covering unit and an armoringunit; the optical fiber unit is located at the middle of the composite optical cable, and comprises an optical fiber of which the outer layer is coated with polyimide and a stainless steel tube to sleeve the optical fiber; taking the stainless steel tube as the center, and the conductor unit and the filling unit with the same outer diameters are closely twisted spirally on the outer side of the stainless steel tube to form a cable core; the outer side of the cable core is respectively provided with the covering unit and the armoring unit from inside to outside; the armoring unit comprises aninner armored wire and an outer armored wire which are twisted in opposite directions. The method has the advantages of high reliability and convenient production.

Description

technical field [0001] The invention relates to the technical field of electrical composite optical cables, in particular to a photoelectric composite optical cable for oil wells and a production method thereof. Background technique [0002] In oil extraction, how to efficiently and economically extract crude oil from oil and gas wells has always been an important topic for us. At present, the cable for oil and gas wells is one of the important equipment used in the process of oil field exploration and production logging, which can transmit various parameters downhole. [0003] In the prior art, there are many disadvantages due to the limited test data and low bandwidth of the copper wire transmission downhole, and the transmission signal is easily affected by the electromagnetic environment. However, optical fiber has small wire diameter, light weight, wide bandwidth, fast transmission rate, and anti-electromagnetic interference. It is currently the best data transmission ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/04H01B7/17H01B7/22H01B7/28H01B7/282H01B7/29H01B11/22H01B13/00H01B13/22H01B3/44
CPCH01B3/44H01B7/046H01B7/17H01B7/225H01B7/2806H01B7/282H01B7/29H01B11/22H01B13/00H01B13/22
Inventor 艾兴余齐伟郭俊国李来发毛庆生冯建达
Owner SHANDONG PACIF OPTICS FIBER & CABLE CO LTD
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