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A flexible riser pipeline for offshore oil and gas transportation

A flexible standpipe and gas transmission technology, which is applied in the pipeline system, gas/liquid distribution and storage, mechanical equipment, etc., can solve the problems of high cost, design, construction and operation management difficulties, and achieve relaxation of horizontal and vertical displacement Limit value, reduced laying length, effect of fewer joints

Inactive Publication Date: 2011-12-07
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The oil pipeline is one of the key structures in the deep sea oil production system. As the depth of the subsea oil field deepens, the design, construction and operation management of the traditional steel pipe oil pipeline become more and more difficult and the cost is also higher and higher.

Method used

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  • A flexible riser pipeline for offshore oil and gas transportation
  • A flexible riser pipeline for offshore oil and gas transportation
  • A flexible riser pipeline for offshore oil and gas transportation

Examples

Experimental program
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Embodiment Construction

[0027] Such as figure 1 , figure 2 , image 3 As shown, the flexible riser pipeline for offshore oil and gas transportation in the embodiment of the present invention mainly includes a cable 1, a hose 2 for oil and gas transportation, and an anchor chain 3 for determining the space path of the pipeline; There is a buoyancy assembly 9, the buoyancy assembly includes a buoy 91 and a buoyancy tank 92, the buoyancy tank 92 is fixed on the seabed foundation 11 through the buoyancy tank tension cable 921, and the anchor chain 3 supported by the buoyancy tank 92 and the buoy tank 91 forms a riser pipeline The cable 1 and the anchor chain 3 are connected by a connecting component 8, and the cable 1 is provided with a constraint component 4 to cover the hose 2 to prevent the hose 2 from drifting.

[0028] Such as Figure 4 As shown, the connection assembly 8 includes a connection belt 81 and a first clamp 82 arranged at both ends of the connection belt 81, the end of the first clam...

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PUM

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Abstract

The invention discloses an offshore oil and gas transportation flexible vertical pipeline. The pipeline comprises a cable, a flexible pipe for oil and gas transportation, an anchor chain for determining the spatial path of the pipeline, and a buoyancy component, wherein the cable is connected with the anchor chain through a connecting component and is provided with a constraint component which sleeves the flexible pipe to prevent the flexible pipe from being drifted; and the anchor chain supported by the buoyancy component is provided with a vertical gravity catenary segment and a transverse wave line segment to determine the spatial path of the vertical pipeline. The flexible vertical pipe is used for realizing the oil and gas transportation, and the cable and the gravity anchor chain can effectively constrain the flexible pipe, so that reliable oil and gas transportation is realized, the flexible pipe is prevented from being subjected to large-displacement drifting in seawater and is well protected, and the pipeline is firm, reliable, safe, and convenient and easy to construct at a high speed, and has low cost.

Description

technical field [0001] The invention relates to the field of offshore operation systems such as offshore oil production and gas production, and in particular to a flexible riser pipeline for offshore oil and gas transportation. Background technique [0002] With the depletion of oil and gas reserves in coastal areas and shallow water areas, the exploitation and production of oil and gas resources in deep water areas has become the goal of marine energy development. Most of the large offshore oil fields discovered so far are located in deep waters, and the exploitation and production of offshore oil and gas resources in countries all over the world are accelerating their development to deeper waters. The oil pipeline is one of the key structures in the deep sea oil production system. As the depth of the subsea oil field deepens, the design, construction and operation management of the traditional steel pipe oil pipeline become more and more difficult and the cost is also high...

Claims

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Application Information

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IPC IPC(8): F17D1/08
Inventor 张爱晖张大地张修
Owner ZHEJIANG UNIV
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