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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 7. Отображено 7.
27-05-2015 дата публикации

Acidification high temperature corrosion inhibitor and preparation method thereof

Номер: CN104651848A
Принадлежит:

The invention relates to an acidification high temperature corrosion inhibitor and a preparation method thereof. The acidification high temperature corrosion inhibitor comprises the following components by weight percentage: 5%-25% of 2-methylpentynol, 5%-30% of pyridine, 5%-30% of polyethylene polyamine, 5%-20% of thioether, 3%-15% of a surfactant, 20%-50% of a solvent, and 1%-8% of a synergist. When used for oil-gas well acidification, the acidification high temperature corrosion inhibitor can prevent corrosion of an organic acid solution to metal equipment and underground alloy steel pipe columns, overcomes the problem that in the prior art, corrosion inhibitors have low corrosion inhibition ability on alloy steel 13Cr under high temperature conditions with H2S and CO2, and has the characteristics of high temperature resistance and good sustained release effect.

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19-02-2014 дата публикации

Solid acid fracturing method

Номер: CN103590803A
Принадлежит:

The invention relates to a solid acid fracturing method. The solid acid fracturing method comprises the steps of first using non-reactive aqueous viscous liquid to press a target layer open, pumping the aqueous viscous liquid where water-insoluble solid acid powder or particles are suspended, then pumping acid fluid, and finally replacing a production layer with the acid fluid. The mass concentration of the water-insoluble solid acid powder or particles is 3-40%, and the grain size of the solid acid powder or particles is selected from 5-500 mesh; and the non-reactive aqueous viscous liquid is natural polymer, modified vegetable gum, artificially synthesized polymer or thickened aqueous solution of the mixture of the natural polymer, the modified vegetable gum and the artificially synthesized polymer. The method is suitable for deep well acidizing fracturing operation of a crack type or dissolution pore type carbonate reservoir with the stratum temperature of 120-180 DEG C, leak-off of ...

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25-11-2015 дата публикации

Crack wall brecciation degree testing arrangement

Номер: CN0204807404U
Принадлежит:

The utility model discloses a crack wall brecciation degree testing arrangement, include: a support, that is used for holding along the first rock specimen and the second rock specimen of crack wall butt joint set up on the support be used for right first rock specimen carries out the fixing device that fixes, and it is right to be used for the first pneumatic cylinder of forward pressure is applyed to the second rock specimen, and be used for right the second pneumatic cylinder of tangential pressure is applyed to the second rock specimen, first pneumatic cylinder is connected with the constant pressure pump, the second pneumatic cylinder is connected with the constant flow pump, the constant flow pump is connected with the computer, the computer is used for the instantaneous operating pressure of real -time recording constant flow pump to formation time - pressure curve. Thereby realized to carry out the accuracy evaluation in the violent degree that living breciation was issued in the ...

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10-06-2015 дата публикации

Experimental device and method for mechanical sealing through ball sealers

Номер: CN104695938A
Принадлежит:

The invention provides an experimental device and method for mechanical sealing through ball sealers, and belongs to the technical field of sleeve sealing through the ball sealers in an oil reservoir ball put layering improvement technology. A water tank is used for holding fracturing fluid, a plunger pump is connected with the water tank through a pipeline, and an experimental tubing string is connected with the plunger pump through a pipeline. The experimental tubing string comprises a connector, a sleeve tubing string and a sleeve plug, wherein the connector, the sleeve tubing string and the sleeve plug are connected in sequence. The connector is communicated with the plunger pump through the pipeline. The sleeve tubing string is composed of a plurality of perforated sleeves in a sequential connection mode, the upper end of the sleeve tubing string is connected with the connector, and the lower end of the sleeve tubing string is sealed through the sleeve plug. According to the invention ...

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23-09-2015 дата публикации

Salt-tolerant and high-temperature-resistant antisludging agent and preparation method thereof

Номер: CN104925968A
Принадлежит:

The invention discloses a salt-tolerant and high-temperature-resistant antisludging agent. The agent is composed of, by weight, 49.5% of maleic anhydride, 18.0% of crylic acid, 10.5% of vinyl acetate, 1.0% pf 2-acrylamido-2-methylpropane sulfonic acid, 10.5% of ammonium persulfate and 10.5% of distilled water. The prepared antisludging agent is resistant to salt and high temperature, high in dispersion effect, high in use concentration and high in adaptability to the pH value.

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27-05-2015 дата публикации

High temperature non-crosslinked clean fracturing fluid and preparation method thereof

Номер: CN104650845A
Принадлежит:

The invention relates to a high temperature non-crosslinked clean fracturing fluid and a preparation method thereof. The high temperature non-crosslinked clean fracturing fluid is composed of the following components by weight percentage: 0.2-1.4% of a thickening agent; 0.1-0.5% of a flow promoter; 0.1-0.8% of a thickening auxiliary agent; 0.05-0.1% of a metal ion stabilizer; 0.05-0.2% of a high temperature stabilizer; 1-2% of a clay stabilizer; and the balance fresh water. The fracturing fluid can used for 160DEG C reservoirs, and is suitable for fracturing reformation of high temperature deep wells and low permeability reservoirs.

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10-06-2015 дата публикации

A brecciation degree testing device for cracked wall surfaces and a method

Номер: CN104697878A
Принадлежит:

A brecciation degree testing device for cracked wall surfaces and a method are disclosed. The device is used for subjecting test rock samples split into a first rock sample and a second rock sample to brecciation degree testing, and comprises a support; a fixing device disposed on the support and used for fixing the first rock sample; a first hydraulic cylinder disposed on the support and used for applying a positive stress on the second rock sample so that the stress of lamination of the first and second rock samples is constant; a constant-pressure pump connected to the first hydraulic cylinder; a second hydraulic cylinder disposed on the support and used for applying a tangential stress on the second rock sample so that relative parallel sliding between the second rock sample and the first rock sample occurs, with the tangential stress being perpendicular to the positive stress; a constant flow pump connected to the second hydraulic cylinder; and a computer connected to the constant ...

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