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针对浅层气藏具有埋藏浅,成因复杂,储量小,丰度低,类型多,分布广,压力偏低的特点。以松辽盆地北部葡南地区黑帝庙气藏为例,对浅层气藏的成藏主控因素进行了研究。葡南丰富的烃源条件为油气富集提供了资源基础;优质盖层条件及稳定的地下水条件为天然气的保存起到了重要作用;T1-T06或T2-T06断层的发育及分布是该区黑帝庙油层油气聚集的必要条件;明水组地层变形前后构造格局的演变对黑帝庙油气藏的再改造起到重要作用,古构造高带也是天然气运聚的有利地带;黑帝庙油层良好的储层条件为油气的储集提供了有利场所。从已有气藏的解剖看,砂体、构造、断层相互配合控制了油气的聚集,是油气成藏关键。总结了黑帝庙油层的成藏模式。对同类浅层气藏的勘探开发具有一定的指导意义。
For the shallow gas reservoir has the characteristics of shallow burial, complex genesis, small reserves, low abundance, multiple types, wide distribution and low pressure. Taking the Heidimiao gas reservoir in the southern part of Songliao Basin as an example, the main controlling factors of gas accumulation in shallow gas reservoirs were studied. The abundant hydrocarbon source conditions in the southern part of the province provide a resource basis for the enrichment of oil and gas. High-quality capping conditions and stable groundwater conditions play an important role in the preservation of natural gas. The development and distribution of the T1-T06 or T2-T06 faults are black The necessary conditions for the accumulation of oil and gas in the Dixia reservoir; the evolution of the structural pattern before and after the deformation of the Mingshui Formation plays an important role in the re-engineering of the Heidimian reservoir; the paleo-structural belt is also a favorable zone for natural gas migration and accumulation; The reservoir conditions provide a favorable place for hydrocarbon accumulation. From the anatomy of existing gas reservoirs, sand bodies, structures and faults cooperate to control the accumulation of oil and gas, which is the key to hydrocarbon accumulation. Summed up the Black Emperor reservoir reservoir formation mode. It is of guiding significance for the exploration and development of similar shallow gas reservoirs.