摘要
近年来,非常规油气勘探开发取得重大突破,大大拓展了储层研究内容,有力推动了储层研究方法的创新。对储层孔隙结构和孔渗特征的认识因新技术的应用而拓展,从常规尺度到纳米级孔隙,从低孔低渗到超低渗储层。文章在介绍和比较孔隙表征的多种方法基础上,根据孔隙结构和储渗特征将储层分为大—中孔高渗储层、微孔低渗储层、纳米孔超低渗储层和复合型孔隙储层4类,并针对不同类型的储层探讨了各个表征方法的优缺点和有效范围,提出了适用于不同类型储层的表征方法组合,针对复合型孔隙储层提出了分区—分层表征技术。此外,文章还探讨了这些表征技术在孔隙成因、孔隙内壁表面结构、充填物特征等研究方面的应用,将储层表征技术从储层品质研究延伸到成因研究,为更加全面综合认识和评价储层提供参考。
Recently,the exploration and development ol unconventional oil and gas resources have obtained a great breakthrough,which expanded research and promoted the technique innovation ol reservoir study. Conse-quently ,Irom conventional-scale to nano-scale pores,low to extra-low porosity and permeability,the understand-ing ol reservoir pore structure,porosity and permeability continues to deepen. Various reservoir characterizations were introduced and compared. On the basis ol pore structure and porosity-permeability characteristics, reservoirs were classilied into four kinds： macro to medium-pore and high permeability reservoirs, micro-pore and low per-meability reservoirs, nano-pore and ultra-low permeability reservoirs,and compound pore reservoirs. The advan-tages ,disadvantages and applications ol each characterization method were discussed, and some combined methods applicable to dillerent types ol reservoirs were also presented. A divisional-layered characterization tech-nique was put lorward to deal with compound pore reservoirs. In addition,the application in pore genesis,lilling material,and surface structure ol internal walls ol pore were discussed. Thus,the research on reservoir extended lrom the structure level to the genesis level,providing relerences lor more comprehensive understanding.
出处
《石油实验地质》
CAS
CSCD
北大核心
2017年第2期287-294,共8页
Petroleum Geology & Experiment
基金
国家自然科学基金项目(41272137
41572117)资助
关键词
表征技术
孔渗特征
孔隙结构
成因特征
储层分类
characterization technique
porosity and permeability characteristics
pore structure
genetic leature
reservoir classilication
