压裂改造工艺在濮城油田低孔低渗油藏的应用

Fracturing process on Pucheng Oilfield low porosity and low permeability oil reservoir applications

濮城油田卫42、卫43断块属于典型的低孔、低渗、非均质油藏,采取常规开发方案无法对其进行经济有效的开采。通过油藏地质特征、开发历程及现状分析,区块油井普遍存在"四低"现象(产能低、液面低、含水低、采出程度低)。从油藏压裂改造工艺研究出发,对于低渗油藏,压裂改造油层是改善渗流能力,提高油层产量的主要方式。本文通过对卫42、卫43断块油藏的压裂改造工艺研究与实施,区块油水井取得了良好的开发效果,油藏开发指标得到明显改善。

Pucheng Oilfield W 42,W43 block is typical of low porosity,low permeability,heterogeneous reservoir,in the conventional development plan can not be cost-effective mining.Through the reservoir geological characteristics,development history and status quo analysis,the prevalence of oil blocks,＂four low＂ phenomenon（low productivity,low surface,low water content,taken out of the low level）.Research from the reservoir fracturing process starting,for low permeability reservoir,fracturing the reservoir is to improve the flow capacity,enhance oil production in a major way.Based on the W42,W43 fault block oil reservoir fracturing process research and implementation,block oil development wells and achieved good results,reservoir development indicators improved significantly.