Accuracy control method for multi-deck construction of large offshore oil and gas modules

A precision control and deck technology, applied in shipbuilding, ship design, ships, etc., can solve problems such as sunken decks, hidden safety hazards in offshore oil and gas production, and affect the quality of oil and gas module construction, achieving the effect of improving construction accuracy

Active Publication Date: 2022-07-08
天津博迈科海洋工程有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the self-weight of each deck of the oil and gas module and various equipment on it will also cause the deck to sag
[0003] Uneven foundation settlement and the self-weight of the deck and the equipment on it will reduce the manufacturing accuracy of the oil and gas modules, affect the construction quality of the oil and gas modules, and bring safety hazards to offshore oil and gas production

Method used

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  • Accuracy control method for multi-deck construction of large offshore oil and gas modules
  • Accuracy control method for multi-deck construction of large offshore oil and gas modules
  • Accuracy control method for multi-deck construction of large offshore oil and gas modules

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Embodiment Construction

[0020] The method of the present invention will be further described below in conjunction with the accompanying drawings.

[0021] The method for controlling the construction accuracy of the multi-layer deck of the large-scale offshore oil and gas module of the present invention comprises the following steps:

[0022] Step 1. Calculate the total weight G of each deck of the marine oil and gas module 2 and the equipment on each deck. i Add the total weight of each deck of the marine oil and gas module and the equipment on each deck to obtain the total weight G of the marine oil and gas module;

[0023] Take the four decks as an example: the mass of the steel used in the four decks is obtained through the design drawings, and the weight of the equipment installed on each deck is added on this basis to estimate the first deck (that is, the lowermost deck, Deck 2-1) and the weight G of the equipment on it as shown 1 , the weight of the second deck and its equipment G 2 , the we...

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Abstract

The method of the invention discloses a method for controlling the construction accuracy of multi-layer decks of a large-scale offshore oil and gas module. The method obtains the sag amount K generated by each deck of the offshore oil and gas module under unit weight through modeling and simulation. i , the concave amount of each deck caused by unit foundation settlement J i . Estimate the weight G of each deck and its equipment on the basis of design drawings and previous foundation settlement data i and the foundation settlement l after the completion of each deck i . According to the above data calculation, the deck depression deformation H of each deck can be obtained i . During the construction process, the total depression H of each deck is applied to each deck respectively. i The same pre-deformation convex amount is used to offset the deck concave amount caused by the dead weight and foundation settlement of each deck. This method can improve the construction accuracy of marine oil and gas module deck.

Description

technical field [0001] The invention relates to a construction precision control method of an offshore oil and gas module, in particular to a construction precision control method of a multi-layer deck of a large marine oil and gas module. Background technique [0002] With the trend of large-scale offshore oil and gas modules, their overall weight is getting heavier and heavier, and the largest offshore oil and gas module has a total weight of 30,000 tons. The huge weight of the marine modules can cause huge pressure on the ground during the construction process, causing the foundation to settle. Due to the uneven distribution of oil and gas modules, the foundation settlement is also uneven. The foundation settlement is the largest in the central part of the oil and gas module construction site, and the smallest in the surrounding areas. The subsidence of the foundation will cause the piers of the oil and gas module to settle. Since the height of the pier in the middle pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B73/00B63B71/10
CPCB63B73/00B63B71/10
Inventor 徐玉宝黄付龙张阳
Owner 天津博迈科海洋工程有限公司
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