河南油田稠油老区开发后期技术路径的思考

Consideration of technical path in late development stage of mature heavy oil blocks in Henan oilfield

系统回顾河南油田老区开发技术路径的基础上,针对进入蒸汽吞吐后期暴露的储量失控、蒸汽波及和热利用率低等内在矛盾,依据剩余油分布特点,提出了沿低采高黏区→中采中黏区→高采低黏区分区推进实施的开发技术策略,为延长河南油田稠油老区开发生命周期提供了一种新思路.

On the basis of systematic review of the technical path in the late development stage of mature heavy oil blocks in Henan oilfield,in view of the internal contradictions between the reserves out of control,steam sweep and the low thermal utilization rate exposed in the late stage of steam stimulation,according to the characteristics of residual oil distribution,the development technology strategy of different implementation in different zones is put forward,namely low producing in high viscosity area,middle producing in middle viscosity area and high producing in low viscosity area,which can provide a new idea for prolonging the development life cycle of mature heavy oil blocks in Henan oilfield.