近年来,中国石油天然气股份有限公司(以下简称中国石油)在陆上深层、超深层油气领域勘探持续获得突破,形成了一批规模储量区,展现出了巨大的油气勘探潜力.为了进一步明确未来中国石油深层、超深层油气勘探方向,在对中国石油近期油气勘探发展形势和新进展分析的基础上,将深层、超深层重点勘探突破进行了领域细分,并系统梳理了中国石油未来油气勘探重点区带并开展了排队优选研究,最后总结了各领域的勘探经验和启示.研究结果表明:①深层、超深层领域可细分为海相碳酸盐岩、碎屑岩及复杂岩性地层、前陆冲断带、深层页岩气4大领域;②向深层进军寻找突破是中国石油未来油气勘探的战略选择,也是未来中国石油油气勘探的重点,应分层次、突出重点部署,积极寻找规模新发现和大突破;③中国石油深层、超深层4大领域勘探程度低、剩余资源潜力大,根据目前勘探进展,初步梳理出40个未来油气勘探重点区带,其中石油地质资源量为39.4× 108 t,天然气地质资源量为39.6×1012 m3,油气勘探潜力巨大.结论认为,深层、超深层是规模油气发现的重大现实领域,保持战略定力、持续加大技术攻关和新领域的探索力度、不断创新理论认识、突破技术瓶颈是加快深层、超深层油气规模勘探开发的重要举措.
In recent years,PetroChina has achieved a series of breakthroughs in onshore deep and ultra-deep oil and gas exploration and has discovered a group of large-scale reserve areas,demonstrating enormous petroleum exploration potential.In order to point out PetroChina's future direction of deep and ultra-deep oil and gas exploration,this paper analyzes its recent development situations and new progress in oil and gas exploration.Based on this,the key breakthroughs in deep and ultra-deep exploration are subdivided,and PetroChina's future main petroleum exploration areas are systematically sorted out,ranked and selected.Finally,the exploration experience and enlightenment in different fields is summarized.And the following research results are obtained.First,the deep and ultra-deep reservoirs can be divided into four major domains,i.e.,marine carbonate rocks,clastic rocks and complex litholog ical strata,foreland thrust belt,and deep-strata shale gas.Second,to achieve breakthroughs in deep reservoirs is PetroChina's strategic choice of future focus in oil and gas exploration.It is necessary to carry out hierarchical deployment and highlight the focuses to actively search for large-scale new discoveries and great breakthroughs.Third,PetroChina's four major deep and ultra-deep domains are less explored with large remaining resource potential.Based on the current exploration progress,40 key areas of future oil and gas exploration are preliminarily identified,with 39.4× 108 t OOIP and 39.6× 1012 m3 OGIP,indicating enormous exploration potential.In conclusion,deep and ultra-deep reservoirs are significant practical domains of large-scale oil and gas exploration,and the important measures to speed up the large-scale exploration and development of deep oil and gas reserves include maintaining strategic focus,continuously strengthening technological research and new field exploration,continuously innovating theoretical understanding,and breaking through technical bottlenecks.