Henan Youjian completed the side pressure tapping plugging test

Sinopec News Network News June 23, Henan Oil Construction Company, a petroleum engineering construction company, successfully completed a 406 mm diameter lateral pressure tapping plugging technology test in Zhengyang Xingyang Equipment Depot, and performed a high-pressure 6MPa plugging effect.

This test of tapping and plugging completed the verification of the construction process for side tapping and plugging.

According to the relevant person in charge, the construction process of lateral tapping and plugging mainly refers to the tapping and plugging process in the upper half of the pipeline, and compared with the previous vertical tapping and plugging construction technology, flange connection positioning The difficulty is greater and the installation requirements are higher

In order to reduce the sagging problem of the center drill under the influence of gravity when opening a hole, positioning blocks were designed and processed for this test to achieve the purpose of large orifice guidance and small orifice positioning, ensure the positioning accuracy of the center drill, and reduce the barrel cutter when opening the hole.

According to market research, it has been found in the construction of long-distance pipelines, chemical pipelines, municipal pipelines, and plant (station) process equipment pipelines that due to the special orientation and space constraints of the pipelines, conventional openings and plugging cannot be performed normally.

For this reason, the company put forward the research topic of lateral pressure tapping and plugging after full demonstration.

It is reported that the company currently has more than 220 sets of various pressurized plugging equipment, with the ability to operate four plugs and four plugs with construction pipe diameters of 100 mm to 1200 mm, and has rich experience in construction operations.

In the next step, the company will make further efforts in the application of tapping and plugging of special pipes such as high-temperature pipelines (300℃-500℃) and super-large diameter pipes, as well as the application of automatic welding of plugging tee, to further expand the performance of tapping and sealing construction, and improve The company has professional market competitiveness in tapping and plugging pipelines under pressure

　　(Ma Lanlan Lu Ruikun)