波谱学杂志2017，Vol.34Issue(2)：206-213,8.DOI:10.11938/cjmr20170210
缝洞型油藏致密基质灰岩的压力敏感性规律的NMR研究
NMR On-Line Measurement of Stress Sensitivity of Tight Matrix Limestone Cores in a Karstic Reservoir
摘要
Abstract
Compared to the conventional reservoirs, karstic carbonate reservoir has more complex structure, larger difference in the size of fracture cavity, and the property that the fracture functioning mainly as a way for communication. It is difficult to study flow characteristics and distribution in karstic carbonate reservoir with the conventional methods. In this paper, we had built an on-line NMR instrument to test the stress sensitivity of 15 Tahe Oilfield tight matrix limestone cores. TheT2 spectrum was measured at each stage. On the basis of theT2 spectra measured, the pore size, porosity and permeability changes of the limestone rocks were determined. It was shown that the on-line NMR measurement technology can be employed in the laboratory tests to provide microscopic information on the changes of core permeability.关键词
低场核磁共振(low-fieldNMR)/压敏性/致密基质灰岩/横向弛豫时间(T2)谱/渗透率Key words
low-field NMR/stress sensitivity/tight matrix limestone/T2 spectrum/permeability分类
数理科学引用本文复制引用
刘中春,程倩,刘乃贵,周杨,房涛,朱涛涛,王为民..缝洞型油藏致密基质灰岩的压力敏感性规律的NMR研究[J].波谱学杂志,2017,34(2):206-213,8.基金项目
国家科技重大专项资助项目(2016ZX05014-004-001) （2016ZX05014-004-001）
国家自然科学基金资助项目(61531002) （61531002）
国家重点基础研究发展计划("973计划")资助项目(2015CB250902). （"973计划"）
