Deepwater oil gas crossover pipe

The invention relates to a deepwater oil gas crossover pipe. The deepwater oil gas crossover pipe is characterized in that the deepwater oil gas crossover pipe comprises a pipe body and a plurality of vortex-induced vibration abatement devices; the pipe body comprises a plurality of vertical straigh...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HUANG DONGYUN, LI XINZHONG, HOU JINLIN, LIU YI, NI KANKAN, WANG DEJUN, JIA LUSHENG, JIA XU, CHEN RONGQI, HUANG JUN, JING HAIYONG
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention relates to a deepwater oil gas crossover pipe. The deepwater oil gas crossover pipe is characterized in that the deepwater oil gas crossover pipe comprises a pipe body and a plurality of vortex-induced vibration abatement devices; the pipe body comprises a plurality of vertical straight pipe segments, a plurality of horizontal straight pipe segments and a plurality of bent pipe segments for connecting the vertical straight pipe segments and the horizontal straight pipe segments. The vertical straight pipe segments and the horizontal straight pipe segments are arranged in a staggered mode and located in the same plane. The pipe body is composed of a single steel pipe layer, an anticorrosion layer coated on the single steel pipe layer and a heat preservation layer arranged outside the anticorrosion layer in a sleeving mode. The vortex-induced vibration abatement devices are arranged outside all the vertical straight pipe segments and all the horizontal straight pipe segments. Each vortex-induced vibration abatement device comprises a plurality of chucks arranged outside the pipe body. All the chucks are tightly connected end to end. Each vortex-induced vibration abatement device further comprises three strakes. Each strake is arranged on the outer wall of the corresponding chuck in a spiral mode. The bottoms of the strakes stretch into spiral grooves formed in the surfaces of the chucks and fixedly bound to the surfaces of the chucks through a plurality of bandages. Each strake is provided with a plurality of gaps for limiting bandages. The deepwater oil gas crossover pipe can be widely used for connection of underwater facilities in deepwater oil-gas field development.