井间示踪测试在剩余油分布描述中的应用  

Application of interwell tracer testing in describing remaining oil distribution

作　　者：刘同敬[1] 姜汉桥[1] 黎宁[2] 雷占祥 李秀生[1] 

机构地区：[1]中国石油大学石油工程教育部重点实验室,北京昌平102249 [2]青海油田分公司勘探开发研究院,甘肃敦煌736202 [3]中国中化集团石油勘探开发有限公司,北京100045

出　　处：《大庆石油地质与开发》2008年第1期74-77,共4页Petroleum Geology & Oilfield Development in Daqing

基　　金：“十五”国家科技攻关项目“低渗透非均质砂岩油藏深部封堵与改造关键技术研究”(2003BA613A-07-05)

摘　　要：随着油田的开发,井间剩余油分布比较零散和复杂,为了了解和掌握剩余油宏观分布规律,矿场采用了多种监测、描述剩余油的方法,井间示踪测试是其中之一。在对井间示踪测试原理分析,以及前期建立的示踪测试解释模型和方法的基础上,对井间示踪测试在油田剩余油分布描述中的应用进行了研究。首先,通过与商业软件以及解析方法的对比,验证了方法的正确性和实用性。在此基础上,拟合了示踪剂产出曲线,模拟了流场分布,掌握了油层内的非均质情况;依据示踪测试解释结果,调整地质模型,并拟合相关指标,确定了较准确的剩余油分布情况。鉴于目前注水存在的认识不清问题,认为进行示踪测试是十分必要的,因此,方法具有很好的应用前景。With the development of oilfield, distribution of remaining oil becomes complicated and scattered. In order to describe distribution of remaining oil, many measures are adopted in oilfield, one of which is the tracer testing. Based on the principle of tracer testing, and the semi - analytical model of tracer testing buih before, this paper mainly studied the application of interwell tracer testing in remaining oil description in WAI oilfield. Firstly, the correctness and practicability of the method are testified by comparing it with the commercial software such as ECLIPSE, GRAND, and the analytical method. Then tracer production curves are matched, and flow field is simulated to understand reservoir heterogeneity. Finally, according to the interpretation of tracer, geological model is re-adjusted and corresponding curves are matched, thus a correct distribution of remaining oil is determined. Aimed at the current problems in water flooding, it is necessary to carry out the tracer testing.

关 键 词：剩余油分布 示踪剂测试 半解析方法 井间测试 

分 类 号：TE323[石油与天然气工程—油气田开发工程]