摘要
为了提高泥岩盖层测井评价的效果,基于大量的文献调研,梳理了泥岩盖层的概念,归纳了泥岩盖层的封闭机理,分析了泥岩盖层的评价参数、分级标准及测井评价方法,开展了泥岩盖层测井新技术评价分析、泥岩盖层测井评价技术发展展望。泥岩盖层封闭机理主要有物性封闭、超压封闭及烃浓度封闭;泥岩盖层的评价参数有厚度、含砂量、总孔隙度、有效孔隙度、渗透率以及排替压力;泥岩盖层常规测井响应特征丰富;泥岩盖层测井评价的核心是建立泥岩盖层评价参数测井解释模型;加强泥岩盖层岩石物理特征研究,建立多维的、非线性的泥岩盖层参数测井预测模型,将静态及动态资料相结合,完善泥岩盖层评价技术体系。
Abstract. In order to improve the effect of log evaluation of mudstone caprock, a large number of references are investigated. The definition of caprock is cleared, and the sealing mechanism of mudstone caprock is generalized, and evaluation parameters, standards for grading and log evaluation methods of mudstone caprock are analyzed, and the new log techniques evaluation of mudstone caprock and the development of log evaluation techniques of mudstone caprock are carried out. The study shows that physical sealing, pressure sealing and hydrocarbon concentration sealing are the main sealing mechanisms of mudstone caprock, and thickness, sand content, total porosity, effective porosity, permeability, displacement pressure are the evaluation parameters of mudstone caprock. The study also indicates that the conventional log response characteristics are obvious and abundant, modeling log interpretation of evaluation parameters is the core of log evaluation of mudstone caprock. Besides, the study also suggests that it s important to strengthen the research of rock physics characteristics of mudstone caprock, set up multi-dimensional, non-linear log prediction model of mudstone caproek parameters and improve evaluation technical system of mudstone caprock by combining static and dynamic data.
出处
《测井技术》
CAS
CSCD
北大核心
2013年第6期594-599,共6页
Well Logging Technology
基金
陕西省教育厅科研计划项目资助(11JK0781)
关键词
关键词
测井评价
泥岩盖层
封闭
机理
参数
Key words： log evaluation, mudstone caprock, sealing, mechanism, parameters
