收稿日期: 2014-07-08
修回日期: 2014-12-27
网络出版日期: 2015-02-10
Analysis and Strategy of Undeveloped Natural Gas in China
Received date: 2014-07-08
Revised date: 2014-12-27
Online published: 2015-02-10
张抗，李铁军 . 中国未开发天然气储量分析和对策[J]. 天然气地球科学, 2015 , 26(2) : 199 -207 . DOI: 10.11764/j.issn.1672-1926.2015.02.0199
Long-standing and increasing undeveloped natural gas reserve is one of the characteristics in exploration and production of natural gas in China.Analysis on its development process and its distribution in different basins is a necessary precondition for increasing reserve producing rate and keeping enhancement of production.Undeveloped geological reserve of natural gas in China in 2013 was about 5.62 trillion cubic meters with its undeveloped rate of 42.3%,while undeveloped recoverable reserve is 0.535 4 trillion cubic meters with its undeveloped rate of 23.7%.According to the analysis of the distribution of basins and companies of undeveloped reserves and different oilfields,some issues are raised under the condition of new ideas and technologies:(1) undeveloped reserves are the realistic regions for enhancement|(2) insight into present situation and dynamic state of proved reserves|(3) the key is the application of proper technologies.Issues,including specialty of each undeveloped reserve,new round deliberate seismic work,moderate lead-in of drilling and reservoir reconstruction,advanced methods in developing middle-small gas fields and more attention on development of dissolved gas,should be emphasized.Three national oil companies should concentrate on making contribution to natural gas production enhancement,narrowing block area,enhancing recovery so as to achieve return on capital and economic benefits.
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