水湿基质性灰岩油藏自由水面的识别  

Free water level determination for water wet matrix limestone reservoirs

作　　者：高有瑞[1,2,3] 尚希涛[3] 唐一丹[3] 

机构地区：[1]中国石油大学,北京102249 [2]中石化勘探开发研究院,北京100083 [3]中石化国际石油勘探开发有限公司,北京100083

出　　处：《特种油气藏》2011年第6期83-85,128,共3页Special Oil & Gas Reservoirs

基　　金：国家重大专项"伊朗Yadavaran油田油藏评价及开发关键技术研究"(2008ZX05031-003)

摘　　要：自由水面的确认对计算原始石油地质储量和井网部署有着重要的意义,同时也是合理避水实现油田稳产的依据。灰岩油藏RFT测试中资料的不确定性和地层的复杂性往往导致自由水面计算结果存在一定的偏差。利用毛管力校正和基准面方法,校正筛选了RFT测试数据,并通过数学计算和概率分析的方法确定了水湿基质性灰岩地层的自由水面。实际应用表明,计算结果与实际结果符合程度较好,可用于自由水面的确定,研究成果对油田开发具有一定的指导意义。The determination of free water level is of great importance to the calculation of original oil in place and the deployment of well patterns and it is also the basis for guarding against water and realizing stable oil production.The uncertainty in the RFT test data and the complexity of the formations of limestone reservoirs usually lead to some errors in the calculation of free water level.In this paper,using capillary force calibration and datum level method,the RFT test data were calibrated and selected.In addition,the free water level of water wet matrix limestone formations was determined through mathematical calculation and probability analysis.The application results indicated that the calculated results were in good agreement with the actual results,so the research results will be of guiding significance in the oilfield development.

关 键 词：灰岩油藏 自由水面 原始石油地质储量 RFT测试 

分 类 号：TE349[石油与天然气工程—油气田开发工程]