FY油层深度二元体系调驱技术的研究与应用

油层深度二元体系调驱是由FYJ凝胶调驱体系和FYF分子膜调驱体系组成的.介绍了FYJ凝胶调驱体系中交联剂的合成、凝胶调驱的机理、凝胶调驱体系性能;FYF分子膜调驱体系中调驱剂的组成、FYF分子膜调驱剂的作用机理、FYF分子膜调驱体系性能.室内调驱试验结果表明:油层深度二元体系调驱可以有效提高调驱压力,FYJ凝胶调驱体系与FYF分子膜调驱体系具有良好的配伍性.现场应用结果表明:启动压力上升,吸水指数下降,吸水剖面得到明显改善,经调剖注水后,7口采油井均明显见效,见效率达100%.

Deep binary-system profile-control flooding technology and its application

Deep binary-system profile-control flooding consists of FYJ gel profile-control flooding and FYF molecular deposition filming profile-control flooding.The cross-linking agent synthesis,the gel profile-control mechanism and the performance of gel profile-control flooding system,and the composition and profile-control mechanism of the molecular deposition filming profile-control agent and the performance of molecular deposition filming profile-control flooding system are studied.Laboratory experiment results show that,the deep binary-system profile-control flooding can effectively enhance oil displacement pressure,FYJ gel profile-control flooding system has good compatibility with FYF molecular deposition filming profile-control flooding system.Field test results show that,the deep binary-system profile-control flooding can make threshold pressure enhance,water absorption index descend and water adsorbing profile be obviously improve.After the profile-control flooding,7 production wells have all obvious effect,and the effective ratio reaches to 100%.