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Acquiring method for cantilever beam load spectrum of self-elevating drilling platform

A technology of drilling platform and acquisition method, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as deviation, limitation, etc. Effect

Inactive Publication Date: 2014-07-30
DALIAN SHIPBUILDING IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Another complicated problem is the load; the drilling load is composed of the hook load, the turntable load, and the stand load. The size of the drilling load is different. When the vertical root is placed on the cantilever beam pipe support, it does not belong to the drilling load, but it also has a limiting effect on the cantilever beam structure and drilling load.

Method used

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  • Acquiring method for cantilever beam load spectrum of self-elevating drilling platform
  • Acquiring method for cantilever beam load spectrum of self-elevating drilling platform
  • Acquiring method for cantilever beam load spectrum of self-elevating drilling platform

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing and embodiment the present invention is described in detail, the present invention comprises the following steps:

[0025] 1. Perform cantilever beam equivalent;

[0026] The typical structural type of cantilever beam is as follows: figure 1 As shown, two I-beams are connected through a transverse structure, and the port or starboard I-beam is taken as the research object, and its section properties are obtained, which is simplified as an overhanging beam such as figure 2 shown.

[0027] figure 1 The left side of the center is the basic structure of the cantilever beam, the two sides are I-beams, and the upper part is the load storage place of the pipe yard. The upper structure mainly bears the load of the pipe yard and contributes little to the overall strength, so it can be Neglect, take one of the I-beams on both sides as the equivalent beam for simplification.

[0028] 2. Determine the boundary conditions of the eq...

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Abstract

The invention discloses an acquiring method for a cantilever beam load spectrum of a self-elevating drilling platform. The acquiring method comprises the following steps: performing equivalent treatment on a cantilever beam; confirming a boundary condition of an equivalent beam and allowed bending stress and allowed shearing strength of the equivalent beam; confirming the load distribution of the equivalent beam; calculating the reaction force, the bending stress and the shearing strength of an equivalent beam supporting base; assessing a drilling load endured by the equivalent beam; batching and drawing the cantilever beam load spectrum. The invention has the advantages that 1) a simplified acquiring method for the cantilever beam load spectrum of the self-elevating drilling platform is provided, the analysis workload is greatly reduced and the result is accurate and reliable, and 2) the acquiring method provided by the invention has wide applicability and universality.

Description

technical field [0001] The invention relates to the concept design, basic design, completion design and acquisition of cantilever beam load in the actual completion stage of a self-elevating drilling platform. Background technique [0002] The jack-up drilling platform is one of the four major offshore mobile drilling devices. Due to its strong positioning ability and good operation stability, it plays an important role in the oil and gas exploration and development in the continental shelf sea area. The design and construction of the cantilever beam platform has greatly improved the operation function of the jack-up drilling platform, and it can realize drilling / completion operations, workover operations and drilling / adjustment operations on the production platform. Since the structure and load of the cantilever beam are relatively complex, and the structural strength of the cantilever beam directly affects whether the platform can perform normal drilling operations, the de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00G06F17/50
Inventor 刘祥建赵一阳彭贵胜戴挺
Owner DALIAN SHIPBUILDING IND
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