摘要
利用地震、钻井及测井资料,通过地震剖面的精细解释对南海北部陆缘深水区中新世礁相碳酸盐岩分布进行研究,并采用地球物理反演及地震属性研究方法,分析已有钻井的礁相碳酸盐岩的储层物性。结果表明:储层物性良好的礁相碳酸盐岩具有较高渗透率、高孔隙度、高波阻抗及高P波速度,同时纵向及横向上具有不均一性;储集物性较差的礁相碳酸盐岩渗透率和孔隙度都比较低,而纵向及横向均一性较好,波阻抗也相对较高;琼东南盆地深水区礁相碳酸盐岩在储层物性上接近于流花11-1(LH11-1)储层,表现为高速度、强波阻抗以及横向上的不均一性,可以作为较好的储层。
The distribution of the biohermal carbonate of Miocene in the northern margin deep water area of South China Sea was researched through accurate seismic interpretation by using the seismic, drilling and logging data. The reservoir physical properties of drilled biohermal carbonate were analyzed by geophysical inversion and extracted the seismic attribution. The re- suits show that the favorable biohermal carbonate reservoir has high permeability, porosity, wave impedance, P-wave velocity and poor vertical and lateral homogeneity. The relatively poor biohermal carbonate reservoir has low permeability and porosi- ty, better vertical and lateral homogeneity, and the wave impedance is higher than that of the favorable reservoir. The results of seismic inversion indicate that the reservoir physical properties of the biohermal carbonate in deep water area of Qiongdong- nan Basin have similar characters with that of in LH11-1 reservoir. It shows high wave impedance, high P-wave velocity and poor lateral homogeneity, and is a good reservoir.
出处
《中国石油大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第4期33-39,共7页
Journal of China University of Petroleum(Edition of Natural Science)
基金
国家'973'项目(2009CB219406)
中国科学院三期院创新项目(KZCX2-YW-203)
关键词
南海北部
礁相碳酸盐岩
深水油气
地球物理特征
northern of the South China Sea
biohermal carbonate
deepwater hydrocarbon
geophysical characteristics
