A deep sea operation cable system
A cable and deep-sea technology, which is applied in the field of submarine cable seismic exploration operations, can solve problems such as inability to carry out construction, complex sea conditions, and inability to control cable accuracy within a reasonable range, so as to avoid multi-layer flow, improve operation accuracy, and realize accuracy control Effect
Active Publication Date: 2017-02-08
CHINA NAT OFFSHORE OIL CORP +1
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Problems solved by technology
[0003] However, as the water depth increases, the sea conditions in the deep sea (the sea area with a depth of more than 100m) become more and more complicated. There are many factors such as multilayer flow, undercurrent, ocean current, and irregular flow in many sea areas. The traditional predictive free-fall laying method It is increasingly impossible to control the accuracy of the cable within a reasonable range, so that the construction cannot be carried out
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[0024] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.
[0025] combine figure 1 , figure 2 As shown, the present invention provides a cable system for deep-sea operations, including a cable body 5, which also includes a positioning rope, the end of which is connected to a gravity anchor 1, and the positioning rope includes a traction rope 2 and a connecting rope 3 connected in sequence , the traction rope 2 is connected to the gravity anchor 1; a plurality of geophones 4 are evenly distributed on the cable body 5, and the cable body 5 and the connecting rope 3 are connected by a connecting piece 6, and the connecting position of...
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The invention discloses a deep-sea work mooring rope system. The deep-sea work mooring rope system comprises a cable body and is characterized by further comprising a locating rope. The end of the locating rope is connected with a gravity anchor, the locating rope comprises a pulling tope and a connecting rope, the pulling rope and the connecting rope are sequentially connected, and the pulling rope is connected with the gravity anchor. A plurality of detectors are evenly distributed on the cable body, the cable body and the connecting rope are connected through a connecting piece, and each connecting position of the connecting piece is set between every two adjacent detectors. The deep-sea work mooring rope system can be applied to the technical field of seismic exploration work of submarine cables, effectively overcome defects existing in the prior art, effectively avoid influences caused by multilayer currents, undercurrents, ocean currents and irregular currents in deep-sea areas, achieve accuracy control over deep-sea work and effectively improve the final work accuracy.
Description
technical field [0001] The invention relates to the technical field of submarine cable seismic exploration operations, in particular to a cable system for deep sea operations. Background technique [0002] At present, in the process of submarine cable construction, the accuracy of cable laying is a prerequisite for the operation. Usually, the accuracy of the cable is required to be DC12.5m in the horizontal direction and DA12.5m in the vertical direction. At present, the accuracy control of cables in submarine cable construction at home and abroad adopts pre-judgment means to lay cables in free fall, and artificially adjusts the DC and advance amount DA of the ship's travel path to compensate for the influence of tides and ocean currents, so as to control the accuracy of the cables. within reason. The current submarine cables are mainly used in shallow sea areas (sea areas with a depth of 50m), and artificial adjustment methods in the above shallow sea areas can obtain bett...
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IPC IPC(8): G01V1/20G01V1/38
Inventor 罗东施荣富李列杨爱兵刘东李金生姚满满徐文孙平麻方敏
Owner CHINA NAT OFFSHORE OIL CORP