学术论文

      非常规油气地质学重要理论问题

      摘要:
      2012年常规能源燃料的消费量和生产量达到创纪录的历史最高水平,石油和天然气在能源消费结构中仍然占据主导地位,非常规油气产量的大幅上升使油气供需基本达到平衡。但目前对非常规油气还有很多重要的基础理论问题没有解决,对非常规油气的分布富集规律、勘探开发特点还没有把握。本文以此为出发点,回顾了近期全球油气勘探形势,提出了非常规油气地质学的4项重要理论问题:①“含油气系统”理论的深化再认识,提出了含油气盆地“全含油气系统”的“全过程成藏”模式,从烃类生-排-运-聚全过程定量化研究的4个关键问题出发,分析了非常规油气成藏机理;②细粒沉积体系与致密相带沉积学,通过解析细粒沉积与非常规油气生成关系的角度提出了3个研究结合点;③页岩与致密储层中微-纳米孔隙系统和流体相态,提出了微-纳米孔隙系统在非常规油气研究方面应重点关注的5个方面,并解析了微-纳米孔隙发育特点及微-纳米孔隙中流体相态的特征;④非常规油气富集规律与资源评价,从非常规油气聚集特征出发,优选建立了非常规油气资源评价方法体系。
      Abstract:
      The consumption and production of conventional energy set a new record high in 2012,oil and gas are still the mainstays inenergy consumption structure,while the drastic increase in unconventional oil and gas production make a near balance between de-mand and supply of oil and gas.However,a lot of basic theoretical questions about unconventional oil and gas are still waiting to beanswered,and little is known about the accumulation pattern and exploration-development features of unconventional oil and gas.The paper reviews the recent situation of oil and gas exploration across the world,and points out four key theoretical questions in un-conventional oil and gas geology:(1)deeper understanding on “oil and gas system”:“whole accumulation”mode of “whole oil andgas system”for petroliferous basins was proposed,the unconventional oil and gas accumulation mechanisms were analyzed by quanti-fying the generation,expulsion,migration,and accumulation;(2)fine grain sediments and tight facies sedimentology:by dissectingfine grain deposition and unconventional oil and gas generation,the integration points of three studies were put forward;(3)micro-to nano-pore system and fluid behavior in shale and tight reservoirs:five aspects of micro-to nano-pore system that should be focusedin unconventional oil and gas study were proposed,and development features of micro-to nano-pores and fluid behavior in micro-tonano-pores were dissected;(4)unconventional oil and gas accumulation pattern and resource evaluation:starting from the features ofunconventional oil and gas accumulation,the evaluation system for unconventional oil and gas resources were set up.
      作者: 贾承造 [1] 郑民 [2] 张永峰 [2]
      Author: Jia Chengzao [1] Zheng Min [2] Zhang Yongfeng [2]
      作者单位: 中国石油天然气集团公司 北京 100724 中国石油勘探开发研究院 北京 100083
      刊 名: 石油学报 ISTICEIPKU
      年,卷(期): 2014, (1)
      分类号: TE11
      机标分类号: P61 P5
      在线出版日期: 2014年2月22日
      基金项目: 国家重大科技专项“中国大型油气田及煤层气勘探开发技术发展战略(二期)”,中国石油天然气集团公司重大科技专项“第四次油气资源评价”,中国石油勘探开发研究院创新项目(2012Y-006)资助。