非常规与常规统一的含油气系统之初探  

Preliminary study on unconventional and conventional oil-bearing gas systems

作　　者：胡宗全 郑伦举[1,4] 申宝剑 陈刚[1,2,3] 刘忠宝 HU Zongquan;ZHENG Lunju;SHEN Baojian;CHENG Gang;LIU Zhongbao(State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development,Beijing,100083;SINOPEC Key Laboratory of Shale Oil/Gas Exploration&Production,Beijing,100083;SINOPEC Petroleum Exploration and Production Research Institute,Beijing,100083;Wuxi Branch of Petroleum Exploration and Production Research Institute,SINOPEC,Wuxi,Jiangsu,214151)

机构地区：[1]页岩油气富集机理与有效开发国家重点实验室,北京100083 [2]中国石化页岩油气勘探开发重点实验室,北京100083 [3]中国石油化工股份有限公司石油勘探开发研究院,北京100083 [4]中国石油化工股份有限公司石油勘探开发研究院无锡石油地质研究所,江苏无锡214151

出　　处：《地质论评》2021年第4期1007-1020,共14页Geological Review

基　　金：国家科技重大专项“陆相层系页岩气勘探潜力评价”项目(编号:2017ZX05036-004);重点层系页岩气生成与储集机理研究项目(编号:2017ZX05036-002)的成果。

摘　　要：近年来,非常规页岩油气勘探开发的成功,为获取油气资源指出了新方向,同时提醒石油地质家重新审视传统的油气地质理论,需要将页岩油气的地质认识进展与传统的油气地质理论结合起来形成新的含油气系统理论。本文基于从常规与非常规在生烃、储层方面的研究进展,初步探讨涵盖常规和非常规的统一的含油气系统和二者协同的勘探思维。生烃研究由以往主要关注生油气高峰时的生烃量延伸到对油气生成、排出、滞留全过程的刻画;储层研究由关注无机矿物成岩演化中形成的米级—毫米级无机孔隙向成岩作用—成烃协同作用形成的微米级—纳米级有机质孔隙延伸;在此基础上提出狭义页岩气、广义页岩气藏和常规气藏的分类界限。在全新的含油气系统理论指导下,需要进行常规—非常规协同一体化评价基础上的勘探思维变革。以常规与非常规油气的成因联系为指导,深入分析同一套烃源岩的生成—排出—滞留过程,分析常规与非常规油气的资源配比关系与空间分布关系,有助于提升油气勘探效率和勘探成功率。In recent years,the success of unconventional shale oil and gas exploration and development has pointed out a new direction for obtaining oil and gas resources,and reminded petroleum geologists to re-examine the traditional oil and gas geological theory.It is necessary to combine the research progress in shale oil and gas with the traditional petroleum geological theory to form a new petroleum system theory.Based on research progress in hydrocarbon generation and reservoir from conventional to unconventional oil and gas,this paper preliminarily discusses the unified petroleum system and cooperative exploration strategy covering both conventional and unconventional system.The study of hydrocarbon generation extends from the hydrocarbon generation amounts at the generating peak to the description of the whole process of hydrocarbon generation,discharge and retention.Reservoir study extends from meter—millimeter inorganic pores with diagenesis to micron-nanoscale organic pores with diagenesis—hydrocarbon synergy.On this basis,the classification is proposed covering shale gas in narrow sense,shale gas in broad sense and conventional gas reservoir.Under the guidance of the new petroleum system theory,it is necessary to change exploration strategy based on the integrated evaluation of conventional—unconventional petroleum.Guided by the genetic relationship between conventional and unconventional oil and gas,this paper analyzes the formation,discharge and retention process of the same set of source rocks,and analyzes the ratio and spatial distribution between unconventional and conventional oil and gas,which helps to improve the efficiency and success rate of petroleum exploration.

关 键 词：生排—滞留模式 成烃—成岩协同作用 非常规油气 常规油气藏 含油气系统 勘探思维 

分 类 号：P618.13[天文地球—矿床学]