石油地质与工程2025，Vol.39Issue(6)：64-69,77,7.DOI:10.26976/j.cnki.sydz.202506010
基于随钻测录井资料快速识别浅层稠油方法研究
Rapid identification method of shallow heavy oil based on LWD and logging data
蒋钱涛 1熊亭 1叶丹阳 2邓卓峰 2崔玉良2
作者信息
- 1. 中海石油(中国)有限公司深圳分公司,深圳 518067
- 2. 中法渤海地质服务有限公司,天津 300452
- 折叠
摘要
Abstract
The oilfield group of the Hanjiang Formation in the Enping Sag,eastern Pearl River Mouth Ba-sin,is classified as unconsolidated sandstone heavy oil reservoirs.The crude oil in these reservoirs features high density and high viscosity,coupled with shallow burial depth and high shale content of the reservoirs themselves.During logging while drilling(LWD),such reservoirs present characteristics of high gamma ray and low resistivity,accompanied by multiple technical challenges:difficulty in identifying thin-bedded sand bodies,low gas-oil ratio of heavy oil,and low absolute gas logging values.These issues not only hinder the establishment of effective oil-water identification charts but also lead to a lack of quantitative evaluation techniques specifically for heavy oil identification.To address these problems,this study conducts in-depth exploration of LWD and mud logging data.Firstly,it realizes rapid identification of thin-bedded sandstones by calculating the sandy index through neutron-density crossplots.Secondly,it integrates logging and mud logging parameters to construct a 3D fluid identification chart based on the abnormal multiples of PI(Pro-ductivity Index),RT(True Resistivity),and TG(Total Gas).Meanwhile,it identifies biodegraded heavy oil by utilizing the differences in hydrocarbon components from gas logging and establishes a quantitative cal-culation model for crude oil density and viscosity.Ultimately,this proposed method enables the rapid detec-tion of reservoirs,identification of fluids,and determination of fluid properties using logging and mud log-ging data during the drilling phase,thereby providing technical support for enhancing the efficiency of oil and gas exploration and development.关键词
恩平凹陷/随钻测井/气测录井/稠油/流体识别Key words
Enping depression/logging while drilling(LWD)/gas logging/heavy oil/fluid identification分类
能源科技引用本文复制引用
蒋钱涛,熊亭,叶丹阳,邓卓峰,崔玉良..基于随钻测录井资料快速识别浅层稠油方法研究[J].石油地质与工程,2025,39(6):64-69,77,7.
