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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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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 11. Отображено 11.
16-01-2013 дата публикации

Method and system for measuring movable liquid surface of oil well

Номер: CN102877832A
Принадлежит:

The embodiment of the invention provides a method and a system for measuring a movable liquid surface of an oil well. Due to the adoption of a load sensor arranged on a well mouth beam hanger and a displacement sensor on the lower side of a walking beam of an oil pumping machine, the load and the displacement of a well oil pumping rod of the oil pumping machine can be measured, and a load and time curve and a displacement and time curve can be collected and acquired; a polish rod indicating diagram is acquired through the load and time curve and the displacement and time curve; a pump diagram is acquired according to the acquired polish rod indicating diagram; and by technical means for acquiring the depth of the movable liquid surface of the oil well through the pump diagram, the method and the system has the advantages that an effective scheme for continuously monitoring the movable liquid surface in real time at low cost is provided, a working mode that workers test the movable liquid ...

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11-12-2013 дата публикации

Cylindrical permanent magnet linear motor

Номер: CN103441639A
Принадлежит:

The invention discloses a cylindrical permanent magnet linear motor which comprises a motor stator and a motor rotor. The shape of the axial cross section of the motor stator is a closed stator groove so as to achieve sealing of a cavity of the motor stator. The cylindrical permanent magnet linear motor has the advantages that the shape of the axial cross section of the linear motor stator is the closed groove, the structure is simple, and the cylindrical permanent magnet linear motor is particularly suitable for integrated machining production modes adopting the machining means like turning. Compared with a traditional linear motor with an inner protective cylinder, the closed groove-shaped linear motor stator is less in equivalent air gap, and therefore electromagnetic force generated by unit current under the same condition is larger.

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24-07-2013 дата публикации

Acidic surfactant fracture liquid system

Номер: CN103215027A
Принадлежит:

The invention relates to an acidic surfactant fracture liquid system. The system comprises 2.0-5.0wt% of cetyltrimethylammonium bromide, 0.5-2.5wt% of potassium biphthalate, 10-20wt% of hydrochloric acid, 0.1-1.5wt% of hydrofluoric acid, and the balance water. The fracture liquid system is suitable for 40-60DEG C reservoir stratums, can be used for acidifying unblocking and sand addition fracturing, and is diluted and broken by stratum water or an organic fluid after the fracturing construction.

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11-07-2012 дата публикации

Remote control system of long-distance pipeline block valve chamber

Номер: CN102563169A
Принадлежит:

The invention discloses a remote control system of a long-distance pipeline block valve chamber, and the remote control system comprises a driving system, a remote control and transmission system, an upper operation center and a solar energy power supply system, wherein the driving system comprises an execution mechanism connected with a valve rod of a block valve, a 24V direct current electric head used for driving the execution mechanism to open or close the block valve, and a control cabinet; the remote control and transmission system comprises a remote measurement and control terminal which is used for remotely controlling the control cabinet and realizing the real-time transmission of long-distance pipeline pressure data and temperature data; the upper operation center is mutually communicated with the remote measurement and control terminal and realizes the remote control over the block valve through transmitting control instructions to the remote measurement and control terminal; ...

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18-12-2013 дата публикации

Separate-layer oil extraction device capable of controlling flowing pressures of upper and lower pay zones

Номер: CN103452835A
Принадлежит:

The invention discloses a separate-layer oil extraction device capable of controlling flowing pressures of upper and lower pay zones. The separate-layer oil extraction device is designed for simplifying structures of traditional two-layer oil extraction devices, improving the adaptability of the separate-layer oil extraction devices and achieving production of upper and lower pay zones under reasonable production flowing pressures. The separate-layer oil extraction device mainly comprises a plunger barrel, a traveling valve, a fixed valve, a connecting body, a side wall controllable valve, a central controllable valve, an eccentrically arranged valve, an inner channel eccentrically arranged valve and an eccentrically arranged valve side wall controllable valve, wherein the plunger barrel is arranged in a pump barrel, the traveling valve is disposed in the plunger barrel, the fixed valve is arranged in the pump barrel, the connecting body is connected with the pump barrel, the side wall ...

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30-10-2013 дата публикации

Fracturing liquid system having surface activity after gel breaking

Номер: CN103374344A
Принадлежит:

The invention relates to a fracturing liquid system having surface activity after gel breaking. The jelly fracturing liquid comprises a solution A and a solution B, wherein the solution A comprises the following components in parts by weight: 0.1-1.0 part of dodecyl grafting guar gum, 1.0-2.0 part of temperature stabilizer, 0.5-1.0 part of clay stabilizer and 96.0-98.4 parts of water; and the solution B comprises the following components in parts by weight: 0.5-2.0 parts of crosslinking agent, 0.01-0.1 part of gel breaker and 97.9-99.5 part of water; and the jelly fracturing liquid is prepared by mixing the solution A and the solution B in volumetric proportion of 100: (0.5-2.0). The jelly fracturing liquid has relatively good flowing deformation and gel breaking performance and can meet the requirements on long-crack and high sand ratio construction as well as the requirements on mixed water fracturing large displacement and low friction construction.

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31-10-2012 дата публикации

Semiautomatic disk type polishing machine

Номер: CN102756322A
Принадлежит:

The invention discloses a semiautomatic disk type polishing machine which comprises an index plate. The index plate is rotatably mounted below a rotation combining power system; a plurality of work piece rotation gears are distributed on the surface of the index plate at intervals; a clamping station is arranged above each work piece rotation gear; a vertical cylinder bracket work piece is arranged above the index plate for positioning; a work piece length adjusting screw rod arranged at the center of the index plate is positioned with the above vertical cylinder bracket work piece; and a plurality of axial reciprocating scanning type polishing heads are arranged at one side of the index plate. According to the semiautomatic disk type polishing machine provided by the invention, the skill requirements of workers and the labor intensity can be greatly reduced, the machine structure is simple, the manufacture cost is lower, and the reliability is high.

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11-09-2013 дата публикации

Pressure transformer with trend extracting function

Номер: CN103292951A
Принадлежит:

The invention discloses a pressure transformer with a trend extracting function. The pressure transformer comprises a signal conditioning unit, a casing and a display module, wherein the signal conditioning unit is connected and packed in the casing, and the display module is arranged on the outer side of the casing, further connected with the signal conditioning unit and used for displaying parameters. The signal conditioning unit comprises an information storing module and a trend extracting module, wherein the information storing module is used for storing signals and system parameters, the trend extracting module is respectively connected with the information storing module and the display module, the trend extracting module can extract pressure information stored in the information storing module, the trend extracting module can acquire trend pressure signals in a set time quantum through operation, and the display module can display the extracted trend signals. The pressure transformer ...

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24-10-2012 дата публикации

Multi-stage segmented release water exploration pipe column and method for casing well completion multi-stage fractured horizontal well

Номер: CN102747967A
Принадлежит:

The invention discloses a multi-stage segmented release water exploration pipe column and a water exploration method for a casing well completion multi-stage fractured horizontal well. The multi-stage segmented release water exploration pipe column comprises a multi-stage water exploration pipe column component which is arranged in a horizontal segment casing of the horizontal well and comprises a screw plug, multiple Y441 type packers and a release joint arranged sequentially from bottom to top, wherein a sealed region between every adjacent two Y441 type packers forms a connecting segment; a safety joint and a switching device are sequentially connected in each connecting segment; and a production pile column component comprises an oil well pump, a plunger of the oil well pump and an oil pumping rod, the upper part of the oil well pump is connected with an oil pipe to the well mouth of the horizontal well, the plunger of the oil well pump is connected with the oil pumping rod, and the ...

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29-01-2014 дата публикации

Method for plug removal of triassic oil reservoir in nitrogen foam acidification mode

Номер: CN103541712A
Принадлежит:

The invention relates to a method for plug removal of a triassic oil reservoir in a nitrogen foam acidification mode. The method comprises the steps that 3 steres of prepad fluid is injected in from a tool oil tube, a sliding sleeve matched steel ball is thrown, 12MPa pressure is applied to set a packer, and pressure is applied continuously to reach 16 MPa to open a sliding sleeve; the rest prepad fluid is squeezed into the triassis oil reservoir in the discharge capacity of 0.2-0.4m<3>/min from the tool oil tube, and nitrogen is mixed in the prepad fluid in the discharge capacity of 20m<3>/min; all working liquid is squeezed into the triassis oil reservoir from the tool oil tube in the discharge capacity of 0.2-0.4m<3>/min, and the nitrogen is mixed into the working liquid in the discharge capacity of 20m<3>/min; all prepad fluid is squeezed, and active water of the volume of the tool oil tube is squeezed; after 1 hour of shut-in reaction, open flow is controlled to be conducted. According ...

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18-12-2013 дата публикации

Layered-extracting and mixed-discharging oil-well pump with upper and lower plungers separated

Номер: CN103452819A
Принадлежит:

The invention discloses a layered-extracting and mixed-discharging oil-well pump with upper and lower plungers separated. The layered-extracting and mixed-discharging oil-well pump is designed for the purpose of developing productivity of layered-extracting production layers to the utmost degree and improving layered-extracting effect. The oil-well pump comprises a pump barrel and a bridge pipe, an upper plunger barrel and a lower plunger barrel are arranged in the pump barrel with an inner-wall step, and a bypass waterway communicated with an oil pipe as well as a lateral overflowing passage and the like communicated with the pump barrel and the bridge pipe are arranged between the pump barrel and the bridge pipe. The upper and lower plungers of the layered-extracting and mixed-discharging oil-well pump are mutually separated, liquid inlet passages are mutually independent, and accordingly interlayer interference can be eliminated effectively, flowing pressure of the upper and lower layers ...

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