摘要
统计结果表明,墨西哥湾浅水区、北海维京地堑、尼日尔盆地陆架区、中苏门答腊盆地以及曾母盆地、渤海湾盆地胜利油区和辽河油区的油气储量发现过程都具有明显的阶段性。在前人3阶段划分的基础上提出将油气储量发现划分为4个阶段,这样更能反映不同阶段的本质区别。储量迅猛增长阶段(相当于前人的储量发现高峰阶段早期)一般出现在勘探的早—中期,是真正意义上的"高峰期";储量增长速度回落阶段(相当于前人的储量发现高峰阶段晚期),储量增长速度明显减缓,"高峰"特征不明显,而这一阶段所发现油气田规模减小、数量增多,勘探工作量急剧增加的特征却十分显著;不同阶段储量发现的效率不同;不同储量发现阶段末期累计储量占总资源量的比例有一定统计意义。油气储量发现阶段是盆地类型、勘探活动规律的直接反映,与盆地的勘探阶段、勘探程度大体一致。储量发现阶段的研究有助于勘探家清醒地认识一个地区目前所处的勘探阶段、目前勘探任务的特点和应采取的勘探对策;同时,油气储量迅猛增长阶段末的累计油气储量与资源总量之间的统计关系,也有助于认识一个中等勘探程度盆地的资源总量。
According to statistical data,the process of oil and gas reserves discovery is obviously periodical in Mexico Gulf,Viking graben,Niger delta,Central Sumatra basin,Zengmu basin,and Shengli and Liaohe oil areas in Bohai bay.In contrast to the 3 periods proposed by previous authors,4 periods are divided for the process of hydrocarbon reserves discovery,which can better reflect essential differences in various periods.The period of rapid reserves growth（equivilent to early the peak period of reserves discovery by previous authors）generally occurs in the early to middle exploration and is the real ＂peak＂ period.In the period of declined reserves growth（equivilent to late the peak period of reserves discovery by previous authors）,the reserves growth often slows down obviously and its ＂peak＂ features are not significant.However,this period may be significantly characterized by more discovered fields with smaller reserves size and rapid increase of exploration operation.The efficiency of reserves discovery is quite different in various periods,and the ratio of the accumulated reserves to the total resources at the end of each period is statistically meaningful.The periods of oil and gas reserve discovery are directly response to basin types and exploration activities,and largely corresponding to basin exploration stages and maturity.The research on the reserves discovery periods can help explorers to realize clearly the current exploration stage and mission and the measures that should be adopted in a targeted basin.Meanwhile,a statistical relationship between the accumulated reserves and the total resources at the end of the rapid reserves-growth period is also helpful to estimate the total resources in a basin with medium exploration maturity.
出处
《中国海上油气》
CAS
北大核心
2010年第3期143-148,154,共7页
China Offshore Oil and Gas
关键词
近海
含油气盆地
储量发现
储量迅猛增长阶段
储量增长速率回落阶段
资源总量
offshore
oil and gas bearing basin
reserves discovery
rapid reserves-growth period
declined reserves-growth period
total resources
