“十二五”中国油气储量增长特点及“十三五”储量增长展望

＂十二五＂（2011—2015年）期间,中国新增探明油气地质储量创历史新高,石油探明地质储量呈高峰稳定增长,天然气探明地质储量实现快速增长,煤层气探明地质储量进入较快增长,并首次探明了页岩气和致密油储量。中国西部和海域已接替东部成为油气储量增长的主力地区。深水、叠合盆地深层、前陆盆地等新区、新领域的突破为中国油气储量增长做出了重要贡献,但新增油气储量依然以低品位储量为主。＂十三五＂（2016—2020年）期间,预计中国探明油气地质储量仍将保持高峰增长,年均新增探明石油地质储量（10-11）×10^8t,新增天然气地质储量（8 000-10 000）×10^8 m^3。天然气增储的潜力大于石油,非常规油气储量将快速增长。储量增长的领域更趋复杂,科技进步对储量增长的作用愈发重要。

Status-quo of proved oil/gas initially-in-place in China as of 2020 and its variation trend in the past decade

This study analyzes the status-quo of the proved oil/gas initially-in-place and its variation trend,the proved undeveloped oil/gas initially-in-place,and the remaining proved technically recoverable reserves(TRR)of oil/gas in China as of 2020 based on statistics.As shown by the results,the proved oil initially-in-place(OIIP),the proved undeveloped OIIP,and the remaining proved TRR of oil in China are mainly distributed in the Bohai Bay,Ordos and Songliao Basins,and those of free gas are mainly in the Ordos,Sichuan,and Tarim Basins.From 2011 to 2020,the largest increment in the proved OIIP,the proved undeveloped OIIP and the remaining proved TRR of oil occurred in the Ordos Basin,followed by the Bohai Bay Basin,while that in the proved gas initially-in-place(GIIP),the proved undeveloped GIIP,and the remaining proved TRR of gas occurred in the Ordos Basin,followed by the Sichuan Basin.In addition,a comprehensive analysis reveals that the petroliferous basins in China with the potential of reserve addition and production growth include the Ordos Basin,the Bohai Bay Basin,the Sichuan Basin,and the Tarim Basin.