砂体注采井网分析和调整尕斯库勒油田N1-N21油藏下盘北区N上层系Ⅳ-2小层  

Analysis and Adjustment of Injection Production Well Pattern in Sand Body-upper Layer Ⅳ-2 of N in North Area of Footwall of N1-N21 Reservoir in Gaskule Oilfield

作　　者：邓琳 Deng Lin

机构地区：[1]中国石油青海油田分公司采油一厂开发地质研究所

出　　处：《化工设计通讯》2020年第2期227-227,247,共2页Chemical Engineering Design Communications

摘　　要：目前油田产量递减加快,不具备稳产的能力,为实现油藏稳产的目标,通过调整注采系统,重建井网结构,提高水驱动用程度,改善开发效果,从而完善单砂体注采关系。以尕斯库勒油田N1-N21油藏下盘北区N上层系Ⅳ-2小层为主要研究对象开展注采井网评价,通过分析砂体注采井网的主要矛盾,提出砂体井网的调整思路及依据,调整注采系统,重建井网结构,制定相应调整对策。主要分为有采无注、有注无采、有采有注和未动用四大区块进行针对性研究。通过分析井组矛盾,做出相应调整,从而达到增加水驱控制储量,提高水驱动用程度,改善开发效果的目的,进而实现油藏稳产的目标。At present,the production of oil field is decreasing rapidly and does not have the ability of stable production.In order to achieve the goal of stable production of oil reservoir,by adjusting the injection production system,reconstructing the well pattern structure,improving the water drive production degree and improving the development effect,the injection production relationship of single sand body can be improved.In this paper,the evaluation of injection production well pattern is carried out with the upper layer Ⅳ-2 of N in the north of footwall of N1-N21 reservoir in gaskule oilfield as the main research object.By analyzing the main contradictions of injection production well pattern of sand body,the adjustment ideas and basis of sand body well pattern are put forward,the injection production system is adjusted,the well pattern structure is rebuilt,and the corresponding adjustment countermeasures are formulated.It is mainly divided into four blocks with or without injection,with injection or without production,with production or without injection and without production for targeted research.By analyzing the contradiction of well groups and making corresponding adjustment,we can achieve the goal of increasing water drive control reserves,increasing water drive production degree and improving development effect,and then achieve the goal of stable production of reservoir.

关 键 词：注采关系 井网分析 水驱动用程度 

分 类 号：TE324[石油与天然气工程—油气田开发工程]