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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 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 4. Отображено 4.
29-12-2010 дата публикации

Unblocking agent for polymer gel profile control agent

Номер: CN0101928557A
Автор: ZHINENG TONG, CHENGXIAO MO, XUEJUN LI, QINGWANG LIU, ZHENZHONG FAN, TONG ZHINENG, MO CHENGXIAO, LI XUEJUN, LIU QINGWANG, FAN ZHENZHONG
Принадлежит:

The invention discloses an unblocking agent for a polymer gel profile control agent. The unblocking agent for the polymer gel profile control agent comprises hydrogen peroxide and industrial hydrochloric acid, has the advantages of temperature resistance, salt resistance, fast gel breaking and strong gel breaking capability and solves the problems of slow gel breaking and insufficient gel breaking of the traditional polymer unblocking agent. The gel breaking time of the unblocking agent for the polymer gel profile control agent is shorter than 2 hours, the tolerable temperature reaches 85 DEG C and the maximum mineralization degree (based on sodium chloride) is 40,000 mg/L (the solution is prepared based on sea water); and 15 weight percent of hydrogen peroxide and 15 weight percent of industrial hydrochloric acid or 7.5 weight percent of hydrogen peroxide and 22.5 weight percent of industrial hydrochloric acid are mixed respectively, and the blocking can be completely removed after 2 hours ...

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Номер записи: 1
05-01-2011 дата публикации

Novel emulsion organic resin selective plugging agent

Номер: CN0101935520A
Автор: ZHINENG TONG, CHENGXIAO MO, ZHENYU YANG, QINGWANG LIU, ZHENZHONG FAN, TONG ZHINENG, MO CHENGXIAO, YANG ZHENYU, LIU QINGWANG, FAN ZHENZHONG
Принадлежит:

The invention discloses a novel emulsion organic resin selective plugging agent, which comprises the following components: polyacrylamide, liquid organic resin, surfactant and curing agent. The novel emulsion organic resin selective plugging agent has the characteristics of temperature resistance, salt tolerance, stable emulsion system and good selective plugging performance, and solves the problems that the conventional plugging agent has poor selectivity and damages the stratum. The water plugging rate of the selective plugging agent is more than 90 percent; the oil plugging rate is less than 20 percent; the temperature resistance reaches 150 DEG C; the highest mineralization tolerance (based on sodium chloride) is 40,000 mg/L (seawater is taken as liquid preparation basis); and the suspension stabilizing time is more than 96 hours.

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Номер записи: 2
24-11-2010 дата публикации

Novel salt-resistant gel selective water shutoff agent

Номер: CN0101892037A
Автор: ZHINENG TONG, CHENGXIAO MO, YUANBO CHEN, QINGWANG LIU, ZHENZHONG FAN, TONG ZHINENG, MO CHENGXIAO, CHEN YUANBO, LIU QINGWANG, FAN ZHENZHONG
Принадлежит:

The invention discloses a novel salt-resistant gel selective water shutoff agent. The agent mainly comprises the following components in percentage by weight: 0.54 to 0.64 percent of cationic polyacrylamide, 0.8 to 1.6 percent of cross-linking agent, 0.9 to 1.2 percent of phenol, 0.02 to 0.6 percent of regulator, 0 to 4 percent of NaCl and the balance of water. The novel salt-resistant gel selective water shutoff agent of the invention is a cross-linked polymer system which is temperature-resistant and salt-resistant, has adjustable gelation time and overcomes the problem of poor oily water selectivity in the conventional water shutoff technology. The water shutoff rate of the selective water shutoff agent is over 95 percent; the oil shutoff rate is below 30 percent; the temperature resistance is up to 85 DEG C; the mineralization resistance (counted by sodium chloride) is 40,000 mg/L (solution preparation is based on seawater) at most; and the gelation time is more than 96 hours.

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Номер записи: 3
14-09-2011 дата публикации

Water absorption resin for well repair and leaking stoppage and synthesis method thereof

Номер: CN0102181008A
Автор: ZHINENG TONG, YUANBO CHEN, TIE GENG, YICHENG DENG, HAILONG MIAO, LUBIN YU, TONG ZHINENG, CHEN YUANBO, GENG TIE, DENG YICHENG, MIAO HAILONG, YU LUBIN
Принадлежит:

The invention relates to water absorption resin for well repair and leaking stoppage. The water absorption resin is prepared by the following synthesis steps of: a, mixing 10 to 15 percent of 2-acrylamide-2-methylpropanesulfonic acid, 30 to 45 percent of acrylamide, 0.2 to 0.5 percent of N,N-methylenebisacrylamide and deionized water in a weight ratio with stirring to form a mixture, wherein the stirring time is 5 to 10 minutes and the stirring temperature is 30 to 50 DEG C; b, putting the prepared mixture into a polymerization reaction kettle, stirring the mixture, introducing nitrogen for 30 minutes to displace air in the polymerization reaction kettle, simultaneously heating the polymerization reaction kettle to the temperature of between 40 and 50 DEG C, then adding 0.03 to 0.08 weight percent of persulfate initiator into the mixture, performing polymerization reaction on the mixture to generate the water absorption resin, and preserving heat for at least 6 hours after the polymerization ...

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Номер записи: 4