A natural polymer-based cross-linker system for conformance gel systems
A natural polymer-based cross-linker system for conformance gel systems
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DOI：
10.2118/84937-pa
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发表时间：
2003-06-01
期刊：
影响因子：
3.6
通讯作者：
Rietjens, M
中科院分区：
文献类型：
--
作者：
Reddy, BR;Eoff, L;Rietjens, M
本文介绍了一种天然来源的材料，可用于在较宽的温度范围内交联各种丙烯酰胺基聚合物，以产生用于一致性应用的凝胶。延迟交联聚合物体系已在一致性应用中使用多年。在过去的十年中，最广泛使用的系统是基于铬（3+）交联的聚丙烯酰胺。有机交联剂，如苯酚/甲醛和聚乙烯亚胺（PEI）也已与多种聚合物一起使用。然而，这些系统正在接受政府机构的审查，并已计划在一些国家逐步淘汰。由于这些问题，一个单一的，环境友好的交联剂，可以与各种聚合物在较宽的温度范围是本研究的重点。本文详细介绍了实验室开发的环境友好的，天然多胺交联剂系统。该交联剂可与多种聚合物一起使用，例如聚丙烯酰胺、AMPS/丙烯酰胺或烷基丙烯酸酯聚合物。已经获得了从刚性和“振铃”型到“唇状”凝胶的凝胶。这些数据说明了一个简单的，商业上可用的系统，可应用于外地行动。讨论了该体系的潜在交联机理。
This paper describes a material derived from natural sources that can be used to crosslink a variety of acrylamide-based polymers over a broad temperature range to produce gels for conformance applications.Delayed crosslinked polymer systems have been used for many years in conformance applications. For the past decade, the most widely used system has been based on chromium (3+) crosslinked polyacrylamide. Organic crosslinkers, such as phenol/formaldehyde and polyethyleneimine (PEI) have also been used with a variety of polymers. However, these systems are being scrutinized by governmental agencies and have been scheduled for phaseout in some countries. Because of these issues, a single, environmentally friendly crosslinker that could be used with a variety of polymers over a broad temperature range was the focus of this study.This paper details the laboratory development of an environmentally friendly, natural polyamine crosslinker system. This crosslinker can be used with a variety of polymers, such as polyacrylamide, AMPS/acrylamide, or alkylacrylate polymers. Gels ranging from stiff and "ringing" type to "lipping" gels have been obtained. The data illustrate a simple, commercially available system that can be applied to field operations. Potential crosslinking mechanism(s) of the system will be discussed.