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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 2. Отображено 2.
06-06-2023 дата публикации

Slurry preparation method for directional drilling

Номер: CN116220588A
Автор: WANG YONGGANG, LYU WEIWEI, LI CHUANBAO, BAI JINHUI, SUN HONGLIN, UNTSCH, YANG ZHE, HUANG GUOLIANG, LI XIAOWEI
Принадлежит:

The invention provides a slurry preparation method for directional drilling, and belongs to the technical field of foundation pit protection.The slurry preparation method for directional drilling comprises the following steps that firstly, a slurry mixing pool is installed; preparing slurry in the slurry mixing pool according to the standard concentration; performing directional drilling operation; when the slurry concentration reaches a preset value, a filtering device in the slurry mixing pool is started, and waste materials in the slurry are filtered. The slurry mixing pool has the beneficial effects that the slurry mixing pool is directly installed in the foundation pit of the drill inlet or the drill outlet, water in slurry can be effectively prevented from leaking, the specific gravity of the slurry is maintained, and therefore it is guaranteed that the operation effect of the slurry is in a good state, no water in the slurry leaks, the strength of the side wall of the foundation ...

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Номер записи: 1
30-05-2023 дата публикации

Orifice positioning method for directional drilling

Номер: CN116181244A
Автор: WANG YONGGANG, LYU WEIWEI, LI CHUANBAO, BAI JINHUI, SUN HONGLIN, UNTSCH, YANG ZHE, HUANG GUOLIANG, LI XIAOWEI
Принадлежит:

The invention provides an orifice positioning method for directional drilling, and belongs to the technical field of directional drilling.The orifice positioning method for directional drilling comprises the steps that firstly, an orifice positioning device is placed in a foundation pit; secondly, the hole opening positioning device is lifted to a proper position; thirdly, a transverse positioning device is started, so that an orifice positioning device is moved to a proper position of the foundation pit; fourthly, the fixing device is started, and the drill rod of the directional drill is fixed. The device has the beneficial effects that the drill rod of the directional drill is fixed through the fixing device, then the driving device is started to drive the driving gear to rotate, the driving gear rotates to drive the gear ring to rotate, the gear ring rotates to drive the driven gear to rotate, the driven gear rotates to drive the driven threaded rod to rotate, and the driven threaded ...

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Номер записи: 2