Automatic pigging ball launcher and automatic pigging method

A technology of pigging ball and launcher, applied in the direction of cleaning methods and utensils, chemical instruments and methods, pipes/pipe joints/pipe fittings, etc.

Active Publication Date: 2021-08-31
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an automatic pigging ball launcher and an automatic pigging method to solve the technical problem of meeting the requirements of the "ring" ball-passing network of submarine pipelines

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  • Automatic pigging ball launcher and automatic pigging method
  • Automatic pigging ball launcher and automatic pigging method
  • Automatic pigging ball launcher and automatic pigging method

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Embodiment Construction

[0039] In order to better understand the purpose, structure and function of the present invention, an automatic pigging ball launcher and an automatic pigging method of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0040] Such as Figure 1-Figure 4 As shown, the automatic pigging ball launcher of the present invention includes: two parallel transmission pipelines, wherein one transmission pipeline is: crude oil transmission pipeline 1, the eighth control valve 48 installed on crude oil transmission pipeline 1; The second delivery pipeline of the delivery pipeline; the second delivery pipeline is: the water injection delivery pipeline 2, the check valve 3 and the first control valve 41 sequentially installed on the water injection delivery pipeline 2;

[0041] The output ends of the above-mentioned two-way delivery pipelines are also connected with three-way, four-way, and five-way delivery pipelines, wherein, t...

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Abstract

The invention relates to an automatic pigging ball launcher and an automatic pigging method. The automatic pigging ball launcher comprises two conveying pipelines which are connected in parallel, wherein the second conveying pipeline is further connected with a third conveying pipeline, a fourth conveying pipeline and a fifth conveying pipeline, a second control valve and a preassembling cabin are arranged on the third conveying pipeline, and the preassembling cabin is connected with a third control valve; the fourth conveying pipeline is provided with a seventh control valve and a launching cabin, and the input end of the launching cabin is connected with the third control valve to form a first loop; the launching cabin is connected with a fourth control valve; the fifth conveying pipeline is provided with a sixth control valve, and the sixth control valve is respectively connected with the launching cabin and the fourth control valve to form a second loop; and the sixth control valve is further sequentially connected with a fifth control valve, a submarine pipeline and crude oil. According to the automatic pigging ball launcher and the automatic pigging method, the problem of the requirement of an annular ball passing pipe network of the submarine pipeline is effectively solved, and the working efficiency of the ball passing pipe network is greatly improved; in addition, the operation risk and the construction cost are reduced; and then automation and intelligentization of ball passing pigging are achieved.

Description

technical field [0001] The invention belongs to the field of offshore oil engineering, in particular to an automatic pigging ball launcher and an automatic pigging method. Background technique [0002] At present, in the process of petroleum engineering development, the pigging launcher is a special tool for cleaning oil and gas pipelines; the pigging launcher is divided into single-pig launch and multi-pig launch, and can also be divided into land launch and underwater launches. The pigging launcher includes: the pigging ball and the receiving and launching tube of the pigging ball. The receiving and launching tubes of the pigging ball are generally installed at both ends of the main pipeline. By launching and receiving the pigging ball, the pipeline is cleaned before the pipeline is put into operation, and the wax, oil, and scale are removed after the pipeline is put into production. . [0003] In the application of marine engineering, the receiving and sending cylinder...

Claims

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Application Information

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IPC IPC(8): B08B9/055F16L55/46
CPCB08B9/0552B08B9/0551F16L55/46B08B2209/055
Inventor 张重德赵庆凯刘富有张雅娜周巍巍
Owner CHINA NAT OFFSHORE OIL CORP
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