凝胶型油井高温抗盐化学堵剂的研制与应用

针对文东油田特殊的油藏物性，以阳离子聚丙烯酰胺为主剂，利用了阳离子的空间位阻和诱导效应以及阳离子不易受其他阳离子影响的特点，以有机胺为交联剂，充分利用了杂环的稳定性，研制了凝胶型油井高温抗盐堵剂，提高了堵剂的耐温抗盐性能。系统地评价了环境因素对堵剂性能的影响，给出了一系列性能指标。应用结果表明，该堵剂适应于高温高盐油藏。

Development and Application of Gel Type High Temperature and Salt Resisting Plugging Agent

In consideration of special reservoir properties in Wendong Oilfield, by using the cationic space steric ,its induction effect and characteristics of cation without influenced by other cation, the stability of chaotic ring is fully used to develop a gel type well high temperature and salt resisting plugging agent with cationic polyacrylamide as main plugging agent and organic amine as cross linking agent, by which the property of high temperature resisting of the agent is improved. The effect of environment factors on the agent property is systematically evaluated, a series of indication is given.The application result shows the plugging agent is suitable for high temperature reservoir use.