中国陆上天然气资源的特征及发展策略

对中国陆上天然气资源的基本特征作了全面分析,其特征主要表现为:①天然气勘探程度不高,资源相对丰富,主要集中分布于四个气区;②天然气成藏特点明显,类型差别较大;③目前天然气勘探进入大发现时期,天然气产量大幅度增长,储采比暂时较高.根据目前勘探开发状况,今后加快天然气发展的策略应是:①突出重点,继续加强天然气勘探;②加强提高单井产能的工程技术攻关,降低开发成本;③转变开发理念,提高管理水平;④通过体制创新,提高开发效益.

Characteristics and development strategy of onshore natural gas resources in China

The characteristic analysis of onshore natural gas resources in China shows that the exploration maturity for natural gas is not high.The onshore natural gas resources are relative rich in China and largely distributed in four gas provinces.The discovered gas fields are characterized by three distrinct types of migration and accumulation episodes.With an accelerated exploration program,more gas reserves are expected to be found,and the total production of natural gas will increase significantly,which implies that the current high ratio of gas reserves to production can not last a long time.According to the characteristics of gas resources and the achieved results of exploration and development for onshore gas in China,the following strategies for development of onshore natural gas resources in China are recommend.Firstly,intensified gas exploration program should be maintained in the key gas provinces.Secondly,some technologies for raising gas production of individual gas well should be enhanced,in order to lower the gas production cost.Thirdly,gas reservoir management can be improved with the development of onshore natural gas.Finally,reformation of the current management system can improve the gas production efficiency.