海相油气地质2024，Vol.29Issue(4)：337-347,11.DOI:10.3969/j.issn.1672-9854.2024.04.001
深层地层压力预测技术研究进展
Research progress on deep formation pressure prediction technology
摘要
Abstract
The performance characteristics and the accurate prediction methods of overpressure in deep strata has become a hot topic in oil and gas exploration and development.Based on a lot of relevant literature and patent works of formation pressure prediction technology at home and abroad,the paper summarizes the challenges and problems in deep formation pressure prediction,the new progress and shortcomings of deep formation pressure prediction technologies,and the future research directions.The main understandings are as follows:(1)The classical pressure prediction theories and algorithms effectively applicable to the shallow and middle strata can not be directly applied to the study of more complexive deep formation pressure.(2)Due to the complex geological conditions,engineering difficulties,complex overpressure genetic mechanism,and the lack of prediction algorithm in deep strata,there is still great challenges and problems although the research based on porous elastic theory,petrophysical model,and tectonic pressurization has promoted the progress of deep pressure prediction.(3)Different from the common overpressure causued by undercompaction,the overpressure in deep strata is offen related to non-undercompacted mechanisms such as pressure transfer of structure and fault,hydrocarbon generation,and caprock sealing,which is often characterized by the coexistence of multiple mechanisms in the same areas and the various changes among different pressure systems.In order to accurately predict the deep overpressure,the more adaptable models are needed including the improved classical methods and formulas facing to the actual problems by analyzing the main and secondary overpressure mechanism.The seismic prediction technologies for the deep formation pressure that adapt to the complex lithology,the coexistence of multiple overpressure mechanisms and the variation of lateral pressure distributions,is the main research direction in the future.关键词
深层/地层压力/超压机制/非欠压实/压力预测技术Key words
deep formation/formation pressure/overpressure mechanism/non-undercompaction/pressure prediction technology分类
能源科技引用本文复制引用
余金秋,孙夕平,于永才,李璇,李晓明,徐光成..深层地层压力预测技术研究进展[J].海相油气地质,2024,29(4):337-347,11.基金项目
本文受中国石油与天然气股份有限公司重大科技专项"中国石油重点地区风险勘探目标研究"(编号:2023YQX10101)资助 （编号:2023YQX10101）
