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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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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 5. Отображено 5.
01-07-2015 дата публикации

Organic acid antiscaling agent for tubular column of water injection well

Номер: CN104745167A
Автор: FAN ZHENZHONG, LIU QINGWANG, WANG JIGANG, LOU YANMIN, LI HE, FAN WEIQING
Принадлежит:

The invention discloses an organic acid antiscaling agent for a tubular column of a water injection well. The antiscaling agent is prepared from the following raw materials in percentage by weight: 7-18% of organic acids, 1-3% of a corrosion inhibitor, 1-5% of a penetrant and the balance of water. The antiscaling rate of the organic acid antiscaling agent on calcium carbonate scales is greater than 85% at the temperature of 50 DEG C and at the reaction time of 12 hours, the antiscaling rate on calcium sulfate scales is greater than 50%, the corrosion rate on a N-80 steel sheet is less than 2.0g/m<2>.h, and the corrosion inhibition rate is greater than 90%. For 13 water injection wells where an instrument encounters obstructions in a field layered test, according to a preferable organic acid antiscaling agent, after the tubular columns are descaled by using the organic acid antiscaling agent, the test instrument can normally trip in at one time, so that the layered test tasks of the water ...

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Номер записи: 1
01-07-2015 дата публикации

Compound acid solution for acidizing tufaceous rock

Номер: CN104745174A
Автор: LIU QINGWANG, FAN WEIQING, WANG JIGANG, LOU YANMIN, LI HE, FAN ZHENZHONG
Принадлежит:

The invention discloses a compound acid solution for acidizing tufaceous rock. The compound acid solution is characterized by comprising the following raw materials in percentage by weight: 12-31% of modified mud acid, 2.5-11% of a compound antiswelling agent, 0.1-1% of a corrosion inhibitor, 1-3% of an anionic complexing agent, 0.1-1% of an emulsion inhibitor and the balance of water. For debris in Bei 16 district of Hailaer oilfield, the compound acid solution has a corrosion ratio of higher than 25% and a breakage rate of lower than 5%; and no precipitate or flocculate is generated in reacted acid and the acid solution is clear. The compound acid solution has a corrosion ratio of higher than 25% for clay (Anqui soil) and has excellent retarding performance as compared with 15% hydrochloric acid and common mud acid. For 100-mesh drilling cuttings powder in Bei 16 district of Hailaer oilfield, the compound acid solution has a swelling rate of less than 2%; after addition of 1.0% of a corrosion ...

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Номер записи: 2
01-07-2015 дата публикации

Emulsified and cross-linked oil-containing sludge profile control agent

Номер: CN104745162A
Автор: LIU QINGWANG, LI HE, FAN ZHENZHONG, WANG JIGANG, LOU YANMIN, FAN WEIQING
Принадлежит:

The invention discloses an emulsified and cross-linked oil-containing sludge profile control agent. The profile control agent is prepared from the following raw materials in percentage by weight: 5-15% of oil-containing slurry, 0.1-0.5% of an emulsifier, 0.6-0.8% of a suspending agent, 1-3% of a cross-linker and the balance of water. The slurry content of the profile control agent is 3-5%, sludge with particle size distribution less than 100 microns accounts for more than 90%, and most oil-containing slurry is less than 50 microns in particle size. The profile control agent is excellent stability, oil-water layering time is more than 70h and water bleeding amount within 24h is less than 10mL; the cementing time of the profile control agent is more than 12h, jelly strength is more than 50000mPa.s, and the blocking rate for cores differing in permeability is more than 90%; and the profile control agent can meet the requirements of profile control construction in the field.

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Номер записи: 3
24-06-2015 дата публикации

Fast demulsification flocculant for well cleanout truck of oil field

Номер: CN104724801A
Автор: FAN ZHENZHONG, WANG JIGANG, LIU QINGWANG, LOU YANMIN, FAN WEIQING, LI HE
Принадлежит:

The invention discloses a fast demulsification flocculant for a well cleanout truck of an oil field. The flocculant consists of a dendritic nonionic demulsification agent, a polymeric flocculant and a macromolecular ion settling agent in a weight ratio of 1: (1-5): (0.1-1). During use, the dosage is 50ppm, the dehydrating temperature is 30 DEG C, the dehydrating rate after 1 hour is greater than 99%, the discharge sewage is clear in color, the suspended solids are less than or equal to 3mg/L, and the median particle diameter is less than or equal to 1.5 microns. The oil content is less than or equal to 5mg/L, and the flocculant has the advantages of being few in medicament dosage, fast in settling speed and low in using temperature. Compared with a field compound flocculant, the performances of a flushing fluid settled for 1 hour cannot satisfy the requirement of field reinjection water.

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Номер записи: 4
18-04-2023 дата публикации

Method for improving transplanting survival rate of big arbor seedlings and growth amount of new shoots

Номер: CN115968702A
Автор: ZHONG ZILONG, FAN WEIQING, ZHANG XIAOHUI, WANG HONGGEN, YAN XIANWEI, WENG XIANPING, ZHU XUHUA, HUANG MINGWEN, ZHOU ZIQIU, XU MEI, HUANG XUJUN, WU LINGZHI, QI WEIYAO
Принадлежит:

The invention discloses a method for improving the transplanting survival rate of big arbor seedlings and the growth amount of young sprouts. The method comprises the steps of selecting and treating arbor species, transplanting and planting, and covering with black weed-proof cloth. The method has the advantages that the arbor roots are covered with the black weed prevention cloth, the effects of air permeability, water permeability, moisture preservation and weed prevention are achieved, the temperature of soil at the arbor roots can be effectively adjusted, soil moisture can be effectively kept, the moisture utilization efficiency can be effectively improved, the arbor transplanting survival rate and the new shoot growth amount can be improved, economic benefits can be improved, and the method is suitable for large-scale popularization and application. Cost is reduced, using effect is good, and popularization is facilitated.

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Номер записи: 5