High temperature resistant big length loaded detecting optical cable

Abstract

The invention provides a large-length and high-temperature resisting loaded detection cable, which is characterized in that a single-mode or a multi-mode tight coated fiber (1) is used as an inner core to cover a tight coated insulation layer (2), a braided copper wire layer (3), an inner sleeve layer (4), a closed water-proofing metal pipe (5), an outer sleeve layer (6) and an inner and an outer loaded twisted steel wire layers (7,8) in sequence from the inside to the outside The number of the cores of the tight coated fiber (1) can be one or more, the copper wire of the braided copper wire layer (3) can be of a single layer or multi-layer tinned copper wire or silver-coated copper wire, the closed water-proofing metal pipe (5) is stainless steel pipe, copper pipe, aluminum pipe or other metal pipes with good conductance, the insulation materials of the tight coated insulation layer (2), the inner sleeve layer (4) and the outer sleeve layer (6) are Fluor plastic or nylon, the steel wires of the inner and the outer loaded twisted steel wire layers (7,8) are double-layer or multi-layer stainless, galvanized or nickel-plated. The invention is widely applicable to geologic exploration of the land and the seabed, strata oil-gas field and the transmission detection of the transmission and detection signals for water conservancy and hydrology. The invention has the advantages of good water-proofing, high-temperature resistance, wear resistance, long service life, high bandwidth of the transmitted detection signals with less loss.

Description

Technical field [0001] The invention relates to a data optical cable, in particular to a long-term vertical load along the axial direction of the optical cable, high temperature and sufficient length to transmit detection data, that is, a high-temperature-resistant large-length load-bearing detection optical cable. Background technique [0002] In geological exploration projects on land and seabed, especially in formation oil and gas field exploration, it is necessary to continuously transmit various information along the test drilling depths back to the ground for processing and analysis. The existing technology is to use logging cables to connect the hanging hammer and Sensors send data back. The logging cable has single or multiple insulated copper core wires plus double steel wire armor. It is bulky and self-heavy. It has small transmission bandwidth and large transmission loss, so the transmission distance is small. To try to reduce the transmission loss and increase th...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of existing logging cables such as copper core water seepage, poor sealing, severe wear, large transmission attenuation, short service life, and high operating costs, the present invention provides a high-temperature-resistant large-length load-bearing detection optical cable, which makes it Good waterproof sealing, high temperature and wear resistance, high bandwidth and low loss of transmitted detection signal, long service life

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