CO5580839A2 - Poliolefina de peso molecular ultra alto util como impulsores de flujo de fluidos frios - Google Patents

Poliolefina de peso molecular ultra alto util como impulsores de flujo de fluidos frios

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Publication number
CO5580839A2
CO5580839A2 CO04029555A CO04029555A CO5580839A2 CO 5580839 A2 CO5580839 A2 CO 5580839A2 CO 04029555 A CO04029555 A CO 04029555A CO 04029555 A CO04029555 A CO 04029555A CO 5580839 A2 CO5580839 A2 CO 5580839A2
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Colombia
Prior art keywords
molecular weight
high molecular
comonomer
ultra high
carbon chain
Prior art date
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CO04029555A
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English (en)
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Stuart N Milligan
Ray L Johnston
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Conocophillips Co
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Publication date
Application filed by Conocophillips Co filed Critical Conocophillips Co
Publication of CO5580839A2 publication Critical patent/CO5580839A2/es

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Abstract

1.- Copolímero de peso molecular ultra alto útil como reductor del flujo lento para hidrocarburos caracterizado porque comprende:a) un monómero de alfa-olefina que tiene una longitud de cadena de carbono de entre 4 y 9 átomos de carbono; y b) un primer comonómero, el primer comonómero tiene una longitud de cadena de carbono de entre 2 y 20 átomos de carbono o comprende un monómero aromático vinílico, el primer comonómero es diferente del monómero de alfa-olefina en donde el copolímero de peso molecular ultra alto tiene un peso molecular mayor de 1 millón y el copolímero de peso molecular ultra alto comprende una mayoría de monómeros con entre 4 y 9 carbonos (contenido molar) y menos del 25% de monómeros (contenido molar) con longitudes de cadena de carbono de 12 o más largas, y además en donde el copolímero de peso molecular ultra alto no tiene ninguna fracción reluctante, como se midió por la prueba de Filtración en caliente-Esfuerzo cortante en frío (ColdShear Warm Filtration).12.- Método para elaborar un copolímero de peso molecular ultra alto útil como reductor del flujo lento caracterizado porque comprende:(a) polimerizar a granel, en ausencia de un solvente, una mezcla de un monómero de alfa-olefina que tiene una longitud de cadena de carbono entre de 4 y 9 átomos de carbono y un primer comonómero, el primer comonómero tiene una longitud de cadena de carbono de entre 2 y 11 átomos de carbono o comprende un monómero aromático vinílico el primer comonómero es diferente del monómero de alfa-olefina, en donde la mezcla comprende por lo menos 50% de monómeros (contenido molar) de longitudes de cadena de carbono entre 4 y 9 átomos de carbono y en donde la mezcla no comprende más del 25% de monómeros (contenido molar) de longitudes de cadena de carbono de 12 o más largas; y (b) formar el copolímero de peso molecular ultra alto, en donde el copolímero de peso molecular ultra alto tiene un peso molecular mayor de 1 millón.
CO04029555A 2001-10-01 2004-03-29 Poliolefina de peso molecular ultra alto util como impulsores de flujo de fluidos frios CO5580839A2 (es)

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US (1) US6596832B2 (es)
EP (1) EP1434805A1 (es)
CN (1) CN1323091C (es)
AR (1) AR037241A1 (es)
BR (1) BR0213054A (es)
CA (1) CA2444015C (es)
CO (1) CO5580839A2 (es)
MX (1) MXPA04002986A (es)
RU (1) RU2303606C2 (es)
WO (1) WO2003029312A1 (es)

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CN1298744C (zh) * 2004-03-24 2007-02-07 中国石油天然气股份有限公司 一种高级α－烯烃低粘弹性本体聚合物的制备方法
US7863362B2 (en) * 2004-09-14 2011-01-04 Baker Hughes Incorporated Density-matched polymer slurries
US7256224B2 (en) * 2005-09-21 2007-08-14 Baker Hughes Incorporated Stabilized polymer drag reducing agent slurries
EP1994111A4 (en) * 2006-02-08 2013-07-17 Baker Hughes Inc SUSPENSIONS WITH STABILIZED AND CRYOSTATIC POLYMERIC TRAIN REDUCTION AGENT
US7388046B2 (en) * 2006-04-19 2008-06-17 Baker Hughes Incorporated Self-dispersing waxes as polymer suspension aids
US7541503B2 (en) * 2006-12-06 2009-06-02 H.A. Industrial Technologies Ltd Formation of substances by mechanical breaking of carbon-carbon chains molecules
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WO2003029312A1 (en) 2003-04-10
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CN1323091C (zh) 2007-06-27
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