黑龙江科技大学学报2024，Vol.34Issue(6)：870-875,6.DOI:10.3969/j.issn.2095-7262.2024.06.008
拟声波曲线重构技术在HQ地区储层反演中的应用
Application of pseudo-acoustic curve reconstruction technique of reservoir inversion in HQ area
张小芳 1李静叶 1李海鹰 1孟阳 1徐红霞 1黄娜1
作者信息
- 1. 中国石油集团东方地球物理勘探有限责任公司 物探技术研究中心,河北 涿州 072751||中油油气勘探软件国家工程研究中心有限公司,北京 100080
- 折叠
摘要
Abstract
This paper aims to address the low reservoir prediction accuracy due to the inability of a-coustic logging curve to distinguish reservoir from surrounding rock effectively.The study is enabled by reconstructing the acoustic curve with a curve weighting method considering the rock volumetric physical model;and predicting the reservoir by using the reconstructed dominant curve;by taking Yanan Forma-tion sandbody prediction in HQ area as an example,selecting the porosity curve with better the reservoir characteristics as the characteristic curve,obtaining the acoustic time difference of pore fluid by curve weighting method;determing the acoustic time difference of rock skeleton;and predicting the distribution law of sandbody by geostatistics inversion.The results show that the reconstructed seismic impedance in-version results can depict the thin sandstone reservoirs with about 3 m′ thickness,more consistent with the actual drilling data from the wells,which reduces the ambiguity of the inversion results and makes the distribution pattern of the sandbodies clearer.This reconstruction method can keep the high and low fre-quency information of the original acoustic curve,and integrate the high frequency information of other characteristic curves to improve the ability of distinguishing reservoirs,which provides important reference for similar reservoir prediction.关键词
储层预测/波阻抗反演/曲线重构/特征曲线Key words
reservoir prediction/wave impedance inversion/curve reconstruction/characteristic curve分类
天文与地球科学引用本文复制引用
张小芳,李静叶,李海鹰,孟阳,徐红霞,黄娜..拟声波曲线重构技术在HQ地区储层反演中的应用[J].黑龙江科技大学学报,2024,34(6):870-875,6.
