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Measuring apparatus and method for inclination angle of jacket platform

A technology of tilt angle and platform structure, which is applied in the direction of measuring tilt, measuring device, surveying and navigation, etc. It can solve the problem that the specific direction and angle of platform tilt cannot be provided, the exact direction and specific angle of the platform cannot be expressed, and the life extension of the platform structure is affected. Evaluate work and other issues to achieve the effect of simple structure, accurate inspection and easy production

Inactive Publication Date: 2016-04-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main elevation, bathymetry and inclination analysis report of the existing offshore platform structure can only measure the inclination of the wellhead platform to a certain point (see figure 1 , Table 1), the specific direction and angle of platform inclination cannot be provided
This may cause inaccurate basic data during platform modeling and affect the next life extension evaluation of the platform structure
[0003] as attached figure 1 , Table 1 shows that the wellhead platform 4 # The lowest point is 6.462m; 1 # The highest point is 6.489m, and the platform faces 4 # The direction of the point is tilted, but the exact direction and specific angle of the platform tilt cannot be expressed
Or the angle of inclination can be calculated mathematically from the measured elevation, but the process is extremely complicated

Method used

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  • Measuring apparatus and method for inclination angle of jacket platform
  • Measuring apparatus and method for inclination angle of jacket platform
  • Measuring apparatus and method for inclination angle of jacket platform

Examples

Experimental program
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Effect test

Embodiment 1

[0032] see Figure 4-5 A device for measuring the inclination angle of the jacket platform structure, including a top plate 4, a hemispherical shell 1 and a sling 3, the top plate 4 is a cylinder, and the lower surface of the top plate 4 is fixedly connected to a tripod with its apex pointing down Support 8, the apex of the tripod support 8 is on the vertical line of the center of the top plate 4; The fixedly connected hanger is connected; the inner surface of the hemispherical shell 1 is marked with latitude and longitude 2; the center of the circle of the lower surface of the top plate 4 is provided with a laser emitter 7 .

[0033] The hanger is a hard hanger 10, the hard hanger is fixedly connected to the inner apex of the hemispherical shell 1, and the hard hanger or its extension line passes through the center of the hemispherical shell 1;

[0034] Three supports 5 are evenly arranged on the outer periphery of the top plate 4 .

[0035] The end of the support 5 is prov...

Embodiment 2

[0037] see Figure 2-3 , the others are the same as in Embodiment 1, except that the hanger is made up of three sub-slings 9 with the same length, one end of the sub-slings 9 is fixedly connected together and connected with the sling 3, and the sub-slings 9 The other ends are fixedly connected to the upper circumference of the hemispherical shell 1 at uniform intervals.

[0038] When using the device of the present invention to measure the angle of inclination of the offshore platform, the corresponding east, south, west, and north directions are all marked on the top plate 4 hemispherical shell 1, and the top plate of the device is fixed on the strong magnet 6. On the jacket on the upper layer of the platform, the arrangement direction is on the same plane as the triangular surface formed by the jacket. Top top plate 4 is connected with bottom hemispherical shell 1 by sling 3 and sub-sling 9, so that the center of top top plate 4 and the center and apex of bottom hemispheric...

Embodiment 3

[0040] Others are the same as in Embodiment 2, except that the support 5 is a telescopic sleeve rod. In this way, the length of the support 5 can be conveniently adjusted according to needs during use, making the measurement more convenient and quicker.

[0041] The method for measuring the inclination angle of the jacket platform of the present invention is to set a detection platform, a weight and a laser beam perpendicular to the detection platform are arranged in the center of the detection platform, and the laser beam or the extension line of the laser beam passes through the center of the detection platform;

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Abstract

The invention discloses a measuring apparatus and method for the inclination angle of a jacket platform, which belongs to the field of marine technology. The measuring apparatus for the inclination angle of the jacket platform comprises a top disc, a hemispherical shell and a suspension cable, wherein the top disc is a cylinder, the lower surface of the top disc is fixedly connected with a three-legged support with a downward apex which is located on a central vertical line of the top disc, one end of the suspension cable is fixedly connected with the apex of the three-legged support, the other end of the suspension cable is connected with a suspension bracket in fixed connection with the hemispherical shell, the interior surface of the hemispherical shell is marked with latitude and longitude, and a laser transmitter is arranged at the circle center of the lower surface of the top disc. The measuring apparatus provided by the invention has the beneficial effects of capacity of faster and more accurate measurement of the inclination angle of an offshore jacket platform, low price, convenience in installation, accuracy in inspection, simple structure and good universality.

Description

technical field [0001] The invention belongs to the technical field of marine equipment, and in particular relates to a device and a measuring method for measuring the inclination angle of a jacket platform structure. Background technique [0002] Whether the structural strength of the offshore platform can meet the safety requirements is the decisive condition for the platform to be used for a long time. Assessing platform structural strength requires modeling in terms of platform tilt direction and angle. The main elevation, bathymetry and inclination analysis report of the existing offshore platform structure can only measure the inclination of the wellhead platform to a certain point (see figure 1 , Table 1), the specific direction and angle of platform inclination cannot be provided. This may cause inaccurate basic data during platform modeling and affect the next life extension evaluation of the platform structure. [0003] as attached figure 1 , Table 1 shows that...

Claims

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Application Information

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IPC IPC(8): G01C9/00
CPCG01C9/00
Inventor 杨冬平牛更奇常琳姜玲王伟斌王安鹏刘洋高莎莎闫肃肃杜帆马文峰张鲁梁勇让冬梅付荣刘灵灵赵栋顾菲菲
Owner CHINA PETROLEUM & CHEM CORP
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