“十二五”中国天然气地质理论研究新进展

发布时间：2018-03-14 22:15

本文选题：“十二五”　切入点：中国　出处：《天然气工业》2017年08期 　论文类型：期刊论文

【摘要】：随着天然气勘探工作的不断深入,资源劣质化程度不断加剧、勘探对象也越来越复杂,需要不断发展和完善天然气地质理论,以指导寻找和发现更多的天然气资源。为此,"十二五"期间开展了大气田成藏地质理论的攻关研究,主要进展包括:①建立了不同地质条件下原油裂解生气和高演化煤系烃源岩生气模式;②建立了不同丰度、不同类型烃源岩排烃、滞留烃定量评价模型;③建立了天然气多参数、多指标成因鉴别图版;④建立了2种碳酸盐岩和2种致密砂岩沉积新模式;⑤建立了直接盖层盖储排替压力差评价新方法;⑥建立了大气田成藏模式,总结了大气田的形成主控因素与分布规律。进而深化了下述5大领域的天然气勘探理论,应用成效显著:①创新了古老碳酸盐岩大气田成藏地质理论认识,推动了四川盆地安岳特大型气田的发现和探明;②发展了大型致密砂岩气田成藏地质理论,指导了鄂尔多斯、松辽等盆地致密砂岩气勘探;③深化了台缘礁滩成藏理论,拓展了四川盆地台缘礁滩天然气的勘探;④深化了大型凝析气藏成藏机理与富集理论,指导了塔里木盆地大型凝析气藏的勘探;⑤完善了以生烃断槽为基本单元的火山岩气藏勘探理论,实现了火山岩气藏勘探的战略接替。
[Abstract]:With the development of natural gas exploration, the quality of natural gas is becoming worse and worse, and the exploration objects are becoming more and more complicated, so it is necessary to develop and perfect the geological theory of natural gas. In order to guide the exploration and discovery of more natural gas resources, during the 12th Five-Year Plan, the key research on the geological theory of reservoir formation of large gas fields was carried out. The main progress includes the establishment of the gas generation model of pyrolysis of crude oil under different geological conditions and the gas generation model of high evolution coal measure source rocks in different geological conditions. Different abundance, expulsion of hydrocarbon from different types of source rocks, quantitative evaluation model of residual hydrocarbon and multiple parameters of natural gas have been established. A new sedimentary model of two carbonate rocks and two compact sandstones has been established in this paper. A new method for evaluating the pressure difference of caprock, reservoir and displacement in direct caprock is established, and the reservoir forming model of large gas field is established. This paper summarizes the main factors of formation and distribution of large gas fields, deepens the natural gas exploration theory in the following five major fields, and innovates the understanding of reservoir forming geology theory of ancient carbonate gas fields with remarkable results. The discovery and discovery of large scale gas fields in Anyue, Sichuan Basin and the development of reservoir forming geological theory of large tight sandstone gas fields have been promoted, which has guided the exploration of tight sandstone gas in Ordos and Songliao basins. It extends the exploration of natural gas in the reef beach of the platform margin of Sichuan Basin and deepens the reservoir forming mechanism and enrichment theory of large-scale condensate gas reservoirs. It guides the exploration of large condensate gas reservoirs in Tarim Basin and improves the exploration theory of volcanic gas reservoirs taking hydrocarbon generating fault trough as the basic unit and realizes the strategic replacement of volcanic gas reservoirs exploration.
【作者单位】：中国石油勘探开发研究院;中国石油天然气集团公司天然气成藏与开发重点实验室;中国石油西南油气田公司勘探开发研究院;中国石油长庆油田公司勘探开发研究院;
【基金】：国家科技重大专项“大型油气田及煤层气开发”(编号:2011ZX05007-002;2016ZX05007-003) 中国石油天然气股份有限公司科技项目(编号:2016B-0602)
【分类号】：P618.13

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