石油物探2026，Vol.65Issue(5)：821-834,14.DOI:10.12431/issn.1000-1441.2025.0070
高邮凹陷阜四段页岩油甜点预测技术及应用
Shale oil sweet spotting techniques and their application in Fu 4 Member,Gaoyou sag
摘要
Abstract
The fourth member of the Funing Formation(referred to as Fu 4 Member)in the Gaoyou sag of the Subei Basin is rich in shale oil resources.However,its exploration and development are still in the initial stage,making seismic sweet-spot prediction imperative to clarify the exploration potential and development direction.We define total organic carbon(TOC)content,free hydrocarbon(S1),porosity,brittle mineral content,pressure coefficient,and in-situ stress as the key parameters for predicting geologic-engineering sweet spots.Based on sweet spot characteristics,the relationships between key geologic-engineering and elastic parameters are established through petrophysical analysis.Using noise-resistant elastic inversion with full-gather quadratic fitting,a high-precision geophysical parameter prediction workflow is constructed,enabling the quantitative prediction and comprehensive evaluation of geologic-engineering sweet spots.Research results indicate an area of exceeding 84.00 km2 for high-graded sweet spots in the study region.Top reservoir properties occur in the Fanchuan sub-sag,with TOC content up to 1.9%,S1 of 4.6 mg/g,porosity of 8%,brittle mineral content of 85%,pressure coefficient above 1.6,and stress difference ratio below 0.2.These prediction techniques,validated by the high-yield commercial oil flow from Y108,a horizontal well deployed in the optimized sweet-spot area,provide technical support for shale oil exploration and development in the region.关键词
页岩油甜点预测/高邮凹陷阜四段/岩石物理/弹性参数反演/甜点预测综合评价Key words
shale oil sweet spot prediction/Fu 4 Member in Gaoyou sag/petrophysics/elastic inversion/comprehensive sweet spot evaluation分类
能源科技引用本文复制引用
陈琳,马捷,唐磊,董文艺,赵耀华,钱竹良..高邮凹陷阜四段页岩油甜点预测技术及应用[J].石油物探,2026,65(5):821-834,14.基金项目
中国石化江苏油田分公司科研项目(JS24004)资助. This research is financially supported by the Scientific Research Project of Jiangsu Oilfield Branch Co.,Sinopec(Grant No.JS24004). （JS24004）
