中国石油大学学报（自然科学版）2017，Vol.41Issue(2)：60-69,10.DOI:10.3969/j.issn.1673-5005.2017.02.007
地震波形指示反演在东营凹陷王家岗地区沙四上亚段滩坝砂的应用
Application of seismic waveform inversion in Es4s beach-bar sandstone in Wangjiagang area, Dongying Depression
摘要
Abstract
The focus of the paper is the upper part of the fourth member of Shahejie Formation (Es4s) in Wangjiagang area,Dongying Depression.Based on Bayesian theory,a posterior probability density function of subsurface models was developed by establishing sequence stratigraphy framework,integrating the principles of sedimentology and information from seismic,well logs and geostatistics.The Metropolis-Hastings algorithm was applied to obtain an exhaustive characterization of the posterior probability density to predict the favorable beach-bar sedimentary facies.Results show that in the beach-bar sand development in the lowstand system tract (LST) of the Es4s,the bar sand is well developed,relatively thick,has large scale distribution,and less lateral variation in the second order para-sequence.The bar sand is interbedded with beach sand,and the overall thickness of the sand is relatively small in the first and third order para-sequences.The lacustrine transgressive system tracts (TST) and the highstand system tracts (HST) are mainly developed the carbonate beach-bar,and are less developed in sandy beach-bar.The aforementioned method is facies-controlled,which yields results that are more consistent with the geological observations.The proposed method works preferably in the Es~,but may also be applied to other types of reservoirs.关键词
波形指示反演/贝叶斯理论/沙四上亚段/滩坝砂Key words
waveform indication inversion/Bayesian theory/upper part of the fourth member of Shahejie Formation(Es4s)/beach-bar sand分类
能源科技引用本文复制引用
韩长城,林承焰,任丽华,马存飞,魏婷,张宪国,孙志峰..地震波形指示反演在东营凹陷王家岗地区沙四上亚段滩坝砂的应用[J].中国石油大学学报（自然科学版）,2017,41(2):60-69,10.基金项目
国家重大科技专项(2017ZX05009-001) （2017ZX05009-001）
国家自然科学基金项目(41672129) （41672129）
