重庆科技大学学报（自然科学版）2026，Vol.28Issue(2)：31-43,13.DOI:10.19406/j.issn.2097-4531.2026.02.004
珠江口盆地文昌A凹陷测井主控因素分析及风险预测方法研究
Research on Analysis of Logging Dominant Controlling Factors and Risk Prediction Methods in Wenchang A Sag,Pearl River Mouth Basin
摘要
Abstract
China's offshore deep reservoir evaluation encounters numerous challenges,primarily due to the complex geological conditions and harsh wellbore environments,which result in operational difficulties and reduced engi-neering efficiency,as well as complications in logging data acquisition.This research focuses on the deep sandstone reservoirs in Block 9-7 of Wenchang A Sag in the Pearl River Mouth Basin,analyzing the key factors influencing logging risks and conducting risk predictions.Through an analysis of historical logging operation data,major logging risks—primarily manifested as sticking and obstructing incidents—are identified,and their main controlling factors are evaluated using crossplots and grey correlation analysis.Subsequently,a five-dimensional(geological factors,wellbore environment,drilling fluid properties,tooltype,and composite factors)logging operation risk prediction model is developed for predicting the risks of sticking and obstructing incidents,integrating random forest algorithm and long short-term memory network.The study reveals that the primary controlling factors for these incidents in-clude the product of instrument length and well inclination,dogleg severity,size ratio,permeability,fluid loss,pressure coefficient,porosity,solid content,and open-hole section length.The application of this model enables accurate risk prediction,and a three-level risk warning threshold system has been established.关键词
珠江口盆地/测井/风险预测/主控因素Key words
Pearl River Mouth Basin/logging/risk prediction/main controlling factors分类
天文与地球科学引用本文复制引用
杨福林,陈鸣,王晓飞,张政涛,李娇,蒋源科,冯志炫..珠江口盆地文昌A凹陷测井主控因素分析及风险预测方法研究[J].重庆科技大学学报（自然科学版）,2026,28(2):31-43,13.基金项目
中海油重大科技攻关项目"深层/超深层储层测录井作业设计及关键参数研究"(CCL2022ZJFN0682) （CCL2022ZJFN0682）
