测井技术2017，Vol.41Issue(5)：523-527,5.DOI:10.16489/j.issn.1004-1338.2017.05.005
中东H油田低渗透碳酸盐岩油藏多层水驱核磁共振实验研究
NMR Experiment Study on Multi-layer Waterflooding of H Oilfield in the Middle East Low Permeability Carbonate Reservoirs
摘要
Abstract
Aiming the heterogeneity of low permeability carbonate reservoir in M group of H oilfield,carried out the physical simulation experiment of multi-layer waterflooding,and based on the T2 relaxation spectrum technique,studied the micro distribution of residual oil and production degree of different permeability combination.Results show that to the different pore structure types,NMR tests have different responses.The permeability is larger,the T2 relaxation spectrum is more,the peak value is higher,and the movable fluid is more.The difference of permeable grade has certain influence on the residual oil and recovery degree of multi-layer waterflooding,and the residual oil and recovery degree of rock samples with different permeability are different in absolute value and relative value.The absolute value of the absolute value and recovery degree of the residual oil are mainly distributed in the large pores,and the low porosity is very small,the smaller the relative value of the residual oil in the small pores,the larger the relative value of the recovery degree.The residual permeability of rock samples with the same permeability difference is higher than high permeability rock samples,and the exploitation potential of macro-pores is still large.关键词
低渗透储层/碳酸盐岩/核磁共振/多层水驱/残余油/采出程度/中东地区Key words
low permeability reservoir/carbonate reservoir/NMR/multi-layer waterflooding/residual oil/recovery degree/the Middle East分类
天文与地球科学引用本文复制引用
史兴旺,杨正明,张亚蒲,朱光亚,肖前华..中东H油田低渗透碳酸盐岩油藏多层水驱核磁共振实验研究[J].测井技术,2017,41(5):523-527,5.基金项目
中国石油天然气股份有限公司十二五重大科技专项子课题中东地区碳酸盐岩油藏整体优化部署及提高采收率技术研究与应用(11.2011E-2501.X.01) （11.2011E-2501.X.01）
