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沾车地区馆陶组地层超覆油藏地震描述技术应用及效果分析
石油物探
2003年 42卷 第No. 3期
阅读：68
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Title
Seismic description technology for stratigraphic overlap reservoir of the Guantao Formation and its effect analysis in Zhanche area
单位
中国石化胜利油田有限公司物探研究院,山东东营257100
Organization
Research Institute of Geophysical Prospecting of Shengli Oilfield Company Limited, Dongying 257100, China
摘要
以沾车地区馆下段油藏为研究对象,着重阐述了精细合成地震记录制作、高精度构造图编制及砂组地层超覆线精确落实等方法,详细分析了平均速度、密度、子波的变化对合成记录制作的影响,提出了根据古地貌确定砂组超覆线的科学方法,分析了测井约束反演、相干分析、多参数分析等技术在储层预测中的应用及效果。对其它类似地区的勘探具有一定的指导意义。
Abstract
Targeted at the reservoirs of the Lower Guantao Formation in Zhanche area, this paper discussed methods for fine calibration of synthetic seismogram, formulation of precise structural maps, and determination of accurate overlap line of sand unit. Effects of changes in average velocity, density, and wavelet on calibrated synthetic seismograms were analyzed thoroughly. A method was proposed to determine the overlap line of sand unit by palaeogeomorphology. The application of logging constrained inversion, coherence analysis, and multiparameter analysis in the prediction of reservoirs were discussed. Other areas with similar characteristics may benefit from the results.
关键词：
合成地震记录;
变速成图;
全三维解释技术;
砂组地层超覆线;
测井约束反演技术;
多参数分析技术;
Keywords:
synthetic seismogram;
variable velocity mapping;
full three-dimensional interpretation technology;
o- verlap-line of sand;
logging constrained inversion technology;
multiparameter analysis technology;
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