加拿大白桦地致密气储层定量表征技术

发布时间：2018-04-09 21:10

本文选题：致密气田　切入点：储层品质　出处：《石油学报》2017年04期

【摘要】：以加拿大白桦地大型致密砂岩气田的研究为基础,梳理了致密气开发过程中需要评价分析的5大品质特性,提出了表征致密气储层特征的关键参数,确定了适用研究区的致密气储层定量表征和评价技术,形成了一套指标体系:多旋回精细等时地层格架和砂体叠置结构特征分析技术以确定储层空间展布;TOC测井参数地质统计定量技术以确定有机质丰度;岩心"四性"关系标定与序贯高斯模拟的储层物性定量表征技术以确定储层物性分类级别;基于岩心应力实验和测井解释的岩石脆性指数综合判定技术以确定岩石可压性;与压裂水平井产量相关的多参数组合综合评价技术以确定有利布井区;井下微地震监测技术定量用以表征人工裂缝、优化井位部署;水平井分段压裂优化技术确定最佳压裂段数、缝间距等参数,落实分段压裂水平井单井控制体积,确定单井控制储量。通过储层和裂缝综合研究不断优化致密气藏开发井网,其中大规模水平井压裂是致密气高产的有效保障,这些技术的现场应用也取得了显著的效果。
[Abstract]:In order to study the Canadian birch large tight sandstone gas field as the basis, need evaluation and analysis of the 5 quality characteristics of gas development process of combing the tight, and put forward the key parameters of gas reservoir characterization to determine the dense, tight gas reservoirs in the study area for quantitative characterization and evaluation technology, has formed a set of index system multi cycle sequence stratigraphy and sandbody superimposition structure analysis technique to determine the spatial distribution of reservoirs; TOC logging parameter geological statistics quantitative technology to determine the abundance of organic matter; "four" core calibration simulation and sequential Gauss reservoir quantitative characterization techniques to determine the classification of reservoir the core index of brittle rock; should force experiment and well logging interpretation technology comprehensive judgment to determine the rock compressibility based on multi parameter; associated with the production of horizontal wells fracturing technology to determine the favorable combination comprehensive evaluation Well; downhole micro seismic monitoring technique for quantitative characterization of artificial fracture, optimization of well deployment; determine the optimal number of fracturing technology to optimize fracturing horizontal well section, spacing and other parameters, the implementation of horizontal well fracturing wells control volume, determine the single well controlled reserves. Tight gas wells reservoir through continuous optimization cracks and comprehensive research, the large-scale horizontal well fracturing is tight gas effective guarantee for high yield. The field application of these technologies has achieved remarkable results.

【作者单位】：中国石油勘探开发研究院;
【基金】：中国石油天然气集团公司重大科技专项(2011E-2509)资助
【分类号】：TE311

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