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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 5. Отображено 5.
04-02-2015 дата публикации

Long well segment perforating gun lifting process and special device

Номер: CN104329040A
Принадлежит:

The invention discloses a long well segment perforating gun lifting process and a special device, and belongs to the technical field of oil exploitation perforating processes. The special device consists of a well mouth no-killing operation device and a special tubing nipple tool string, wherein the well mouth no-killing operation device consists of a traveling slip, an upper fixed slip, an annular blowout preventer, a balance pressure relief cross, a totally-enclosed blowout preventer, a lifting tubing nipple, a lower fixed slip, a three-flashboard blowout preventer and an elevating system; the tubing nipple tool string consists of a pipe plug, a tubing nipple and a fishing tool. The extended well segment perforating gun process comprises the following steps: (A) arranging the no-killing operation device; (B) reversely lifting a perforating gun upper oil pipe cylinder; (C) picking a perforating gun out by the lower tubing nipple tool string in the cylinder; (D) reversely opening a perforating ...

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25-04-2023 дата публикации

Nickel-based composite oil pipe string

Номер: CN116006090A
Принадлежит:

The invention relates to a nickel-based composite oil pipe string. The nickel-based composite oil pipe string comprises an oil pipe and a coupling, the oil pipe is provided with a coupling connecting end in threaded connection with the coupling, the oil pipe comprises a base pipe and a nickel-based alloy lining layer, the nickel-based alloy lining layer is provided with a turned-over edge, and the turned-over edge covers the end face, at the coupling connecting end, of the base pipe; an annular step is arranged in the coupling, a sealing ring is arranged between the annular step and the connecting end of the coupling, the sealing ring is a nickel base alloy ring, an oil pipe sealing lip is arranged at the end, in contact with the oil pipe in the axial direction of the oil pipe, of the sealing ring and provided with an oil pipe lip sealing arc face, and the oil pipe is in threaded connection with the coupling and presses the sealing ring in the axial direction of the oil pipe. And the oil ...

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30-04-2014 дата публикации

Wellhead gas injection device and application method

Номер: CN103758497A
Принадлежит:

The invention provides a wellhead gas injection device and an application method, and relates to the technical field of oil and gas exploitation. The device is structurally characterized in that an air release valve is installed on an equal tee connected with a check valve, a combination-type gas injection connector is composed of a gas injection connector body and a spray nozzle, one end of the combination-type gas injection connector is connected with a wellhead, the other end of the combination-type gas injection connector is connected with the equal tee, the inside of the gas injection connector body is provided with a cylindrical oscillation cavity, the outlet end of the cylindrical oscillation cavity is fixedly connected with the gas inlet end of the spray nozzle, a conical drainage cavity, a cylindrical throat and a conical feedback cavity are sequentially formed in the spray nozzle in the gas injection direction, the outlet end of the cylindrical oscillation cavity is provided with ...

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05-08-2015 дата публикации

Gas well comprehensive gas productivity curve and analysis method thereof

Номер: CN104820749A
Принадлежит:

The invention discloses a gas well comprehensive gas productivity curve and an analysis method thereof, and belongs to the technical field of gas well dynamic analysis in oil-gas field development. The comprehensive gas productivity curve is constructed by overlapping instant gas volume lines on a gas production line according to the same time sequence on the basis of the existing traditional comprehensive gas productivity curve. The analysis method of the comprehensive gas productivity curve comprises the following steps: invoking a gas productivity curve daily chart, macroscopically analyzing a production status of a gas well according to the form and tendency of an instant gas volume line; invoking a gas productivity curve time-division chart, observing the form of the time-division chart, and synchronously observing the daily chart, thereby carefully analyzing the production status of the gas well. Through the adoption of the gas well comprehensive gas productivity curve disclosed by ...

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21-01-2015 дата публикации

Completion pipe column and completion technology for oil-gas well

Номер: CN104295243A
Принадлежит:

The invention discloses a completion pipe column and completion technology for an oil-gas well and belongs to the technical field of completion pipe columns for oil production engineering. The completion pipe column for the oil-gas well is composed of an inner oil pipe, a safety valve and a hydraulic control pipeline, wherein an adapter connector is connected to the upper portion of the safety valve through threads, the adapter connector is provided with a step-shaped inner shoulder and connecting threads and is connected with the inner oil pipe and an outer pipe, and a through hole is formed in the inner shoulder of the adapter connector; the hydraulic control pipeline is located in the space between the inner oil pipe and the outer pipe, penetrates through the through hole in the inner shoulder of the adapter connector and is sealed through a sealing piece. The inner oil pipe and the hydraulic control pipeline are fixed together through a clamping ring. According to the completion pipe ...

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