中国天然气勘探发展战略问题探讨

A discussion on the development strategies of Chinese natural gas exploration

近年来,全球巨型气田持续发现,勘探技术不断进步,勘探领域向寻找岩性地层气藏、深水油气藏等方向发展,非常规天然气已成为重要的补充资源类型。中国天然气资源相对丰富,常规天然气资源探明程度低,正处于快速发展阶段;非常规天然气勘探开发刚刚起步,正处于探索阶段。在充分调研国外天然气勘探经验与发展趋势的基础上,对比国内天然气勘探现状及特点,对中国天然气勘探发展的一些战略问题进行了探讨并得出以下认识:①2000年以来年均探明储量5000×108m3以上,大气田是储量增长的主要推动力(大气田探明储量占总数的70%左右);②地质条件相对复杂,勘探难度逐渐加大,低品位储量占90%以上,勘探工作更具长期性,需持之以恒;③必须认识到勘探思维创新和技术进步的必要性,加大针对性技术攻关是推进天然气科学发展的有力措施;④发展非常规天然气是确保我国天然气可持续发展的必由之路。

In recent years,more and more giant gas fields have been continuously found in the world.The continual progress in exploration technologies has made it possible for energy pioneers to probe into more other areas like lithological gas reservoirs or deep water hydrocarbon reservoirs,thus unconventional natural gas resources are becoming an important supplementary energy.Natural gas is rich in China,and the conventional gas has stepped into the stage of rapid development while the unconventional gas has just started its initial step at present.Based on a full survey and study on the overseas exploration experiences and developing trend,this paper compared this with the status quo and characteristics in China,and then presents some views on the strategies about the development of Chinese natural gas exploration:①China has a rich natural gas resources,and it is high time that giant gas fields be discovered.The annual proven reserves of natural gas has been up to 500,000,000,000(500 bcm)since 2000 with a major contribution of 70% by giant gas fields.②Natural gas exploration has to face many challenges such as the complex geological conditions,greater difficulties and higher requirement for gas exploration.③New ideas and innovations of technology will be necessary for future natural gas exploration.④To tap more unconventional gas resources is the only way to the sustainable development of natural gas industry in China.