As the deterioration of resources intensifies,reservoirs exhibit characteristics such as thinness,low permeability,low abundance,and strong heterogeneity.The discovery of oil and gas display in thin and poor layers has become a difficult point in interpretation and evaluation while drilling.The hydrocarbon spectrum graphices evaluation uses infrared non-scattering absorption spectrum to detect the composition of hydrocarbons in the formation and the variation law of the content of hydrocarbons contained to qualitatively and quantitatively evaluate the fluid properties of the reservoir quickly.This technology has fast analysis speed(analysis cycle≤8 s),multiple acquisition parameter dimensions,high visualization degree of anal-ysis spectrogram,and intuitive effect.It has been proven through practice to have significant evaluation effects on thin oil and gas displays under high drilling speed,reservoir heterogeneity and bottom water dis-covery of oil layers,and has good field promotion value.
关键词
烃相态评价技术/红外非散射吸收光谱/储层非均质性/薄差层油气显示
Key words
hydrocarbon spectrum graphices evaluation/infrared non-scattering absorption spectrum/res-ervoir heterogeneity/oil and gas display in thin and poor layer