Adjustment process for coaxiality of pipe clamp

A technology of coaxiality and pipe clamping, which is applied in metal processing, manufacturing tools, metal processing equipment, etc., can solve the problems of long operation time and insufficient flexibility of operation mode, so as to improve operation efficiency, flexible operation mode and reduce cost. Effect

Inactive Publication Date: 2013-06-19
CHINA NAT OFFSHORE OIL CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Divers need to dive into the pipe clips at different water depths twice to install the pipe clips and adjust the coaxiality. Therefore, the operation time is longer; and saturation diving and air diving need to coordinate and cooperate, and cannot be separated. not flexible enough

Method used

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  • Adjustment process for coaxiality of pipe clamp
  • Adjustment process for coaxiality of pipe clamp
  • Adjustment process for coaxiality of pipe clamp

Examples

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Embodiment Construction

[0047] In order to simplify the adjustment process of the coaxiality of the tube clamp, the adjustment tools such as the reference rope 8, the reference rope positioning bracket 7, the scale 10 for calibrating the clamp position, and the calibration crutch 15 are respectively prefabricated for standby.

[0048] The present invention comprises the following steps:

[0049] (1) Install and fix the large tube clamp 1 in the tube clamp on the jacket leg 5;

[0050] (2) Use measuring tools to assist in adjusting the azimuth of the pipe clamp to reach the design azimuth angle of 12;

[0051] (3) According to the same operation mode, install all the pipe clips on the jacket leg 5 and adjust the azimuth of the pipe clips to reach the design azimuth angle of 12, so that the central axes of the small and medium pipe clips 2 of all the pipe clips are on the same axis, that is : Make all pipe clips reach the coaxiality.

[0052] The specific operation steps are as follows:

[0053] The...

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Abstract

An adjustment process for the coaxiality of a pipe clamp comprises the following steps: first, the pipe clamp is put into water after marking a first mark and a second mark on the pipe clamp; second, a tool for measuring a position of the pipe clamp is arranged on a pile leg of a jacket; third, a third mark and a fourth mark are marked on the pile leg of the jacket; fourth, the position of the pipe clamp is adjusted to make the pipe clamp be folded on the pile leg of the jacket, thus the second mark and the first mark on the pipe clamp are respectively corresponding to the third mark and the fourth mark; fifth, the position of the adjusted pipe clamp is verified. After each pipe clamp is arranged, the invention directly adjusts the position of the pipe clamp to get a design value, to independently adjust the coaxiality on each pipe clamp; and finally, all the pipe clamps can reach the coaxiality. The invention needs no divers to arrange the pipe clamps and adjust the coaxiality by diving to the positions of the pipe clamps with different water depths for twice, thus, the working efficiency is improved and the cost is reduced; meanwhile, as a saturation diving operation and an air diving operation can be independently implemented, the operation modes are flexible.

Description

technical field [0001] The invention relates to a process for adjusting the coaxiality, in particular to a process for adjusting the coaxiality of a pipe clip. It belongs to the field of offshore oil engineering. Background technique [0002] In offshore oil development projects, it is necessary to lay submarine oil pipelines and submarine cables on the seabed. The submarine oil pipeline includes: flat pipe, platform riser and expansion elbow. The platform riser is the main component used to connect the flat pipe and lead the end of the pipeline out of the water along the platform. [0003] After the offshore oil field is completed and put into production, due to the further development of the oil field and the establishment of a new platform, it is necessary to lay new submarine pipelines or new cables, which requires the installation of new risers or cable protection pipes on the original platform. The riser clip (or cable protection clip) is used to fix the riser (or ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P11/00
Inventor 刘贞飞苗春生王杰文张印桐严国华
Owner CHINA NAT OFFSHORE OIL CORP
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