横山油田魏家楼油区横探18-横探6井区小层划分研究

为了合理地开发魏家楼油区横探18-横探6井区长6油藏,本区计划实施超前注水试验。针对该试验开展了精细地层划分等工作,以层序地层学等理论为指导,建立骨干剖面,通过剖面闭合对比,将长61段共划分为3个砂层组,即长61-1、长61-2和长61-3,砂层组再细分10个小层。最终达到提高油层注采对应率,最大限度提高了水驱动用程度。

Practices of Thin layer division for Heng Tan 18 Heng Tan 6 Well Area in Weijialou of Hengshan oil field

In order to rationally develop horizontal oil exploration 05 18-6 horizontal wells chang 6 reservoir in Weijialou oiffield,the district plans to implement ahead of water injection test.Test carried out against the fine stratigraphic classification,etc.,to the theories of sequence stratigraphy,we established the core section,section closed by contrast,Chang 61 sand were divided into three groups,namely,T 3y61-1,T 3y 61-2 and T 3y 61-3,subdivided into 10 small sand layer group.Ultimately improve the oil injection and the corresponding rate,to maximize the water level for driving.