Submarine pipeline deep excavation and embedding device and embedding method
A subsea pipeline and deep excavation technology, applied in the direction of pipeline laying and maintenance, mechanical equipment, pipes/pipe joints/pipe fittings, etc., can solve problems such as inability to meet engineering needs, great influence of soil backfilling, and difficult hydraulic injection devices, and achieve economical Significant benefits, convenient device maintenance, and simple device structure
Active Publication Date: 2018-04-06
WUDI HAIZHONG FLEXIBLE PIPE MFG CO LTD
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Problems solved by technology
If it is necessary to bury more than 2.5 meters, the backfilling of the soil will have a great impact, and it is difficult to realize it with a single hydraulic injection device
In the soil area with strong soil quality, it is more difficult to break the ground and bury with a single water jet, which cannot meet the engineering needs
Method used
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Embodiment Construction
[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and examples.
[0023] like figure 1 As shown, the deep excavation and embedding device for submarine pipelines includes a frame 2, a sliding shoe device, an embedded plow arm 6, a large flow jetting pump 3, a high-pressure jet pump 7 and a sliding shoe luffing device 4, and the sliding shoe device has two The left sliding shoe device 1 and the right sliding shoe device 5 are respectively hinged with the frame 2. In order to bear the load of the embedded device on the mud surface, so that the embedded device will not sink into the mud during use, the left sliding shoe device 1 and the right Sliding shoe device 5 is configured with larger mud contact area, is designed according to soft soil not subsidence influence dragging forward, and the front end of sliding shoe has the gradient of rising, to adapt to the resistance influence in advancing, can not sink into mud. The...
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The invention relates to a deep digging and embedding device for subsea pipelines, which comprises a frame, a sliding shoe device, a plow arm for embedding, a large-flow jet flushing pump, a high-pressure jet pump and a sliding shoe luffing device. By using the combined soil-breaking device to break the soil and discharge mud, the deep trenching of the soil can be realized and the pipeline can be buried to the set required depth. The mechanical earth breaking device has high efficiency, is simple and reliable. The water conservancy soil breaking device has mature technology, is not easy to damage the pipeline, and can meet the requirements of different depths of mud discharge. Combining the characteristics of different soil-breaking methods, the device can meet the requirements for laying pipelines with a depth of more than 2.5 meters. The device used is simple in structure and mature in technology, and can be quickly put into industrial practice, finding a new method for the construction of pipelines that are difficult to bury. method, the device is easy to maintain, and the economic benefit is remarkable.
Description
technical field [0001] The invention relates to an embedding device and embedding method, in particular to an embedding device and embedding method for deep excavation of subsea pipelines. Background technique [0002] At present, as the international energy crisis continues to intensify, the development of offshore oil and gas fields has been accelerated, especially the development projects of deep water oil and gas fields have been developed rapidly. For deep-water oil and gas fields, due to the deep water depth, the water injection device and crude oil delivery system require a large number of marine hoses. Considering the safety of the pipeline in use, the pipeline must be buried. In order to better protect the pipeline, the depth of burial in special areas needs to reach a depth of more than 2.5 meters. The conventional pipeline embedding device uses a single hydraulic jet soil breaking device for powerful jet breaking. It has been proved by practice that the embedding...
Claims
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IPC IPC(8): F16L1/16
Inventor 陈伟
Owner WUDI HAIZHONG FLEXIBLE PIPE MFG CO LTD