摘要
为了加强陇东油田侏罗系构造-岩性油藏的开发工作,本文基于文献调研和地质、岩心、测井、油水井生产资料收集,从陇东A区侏罗系延8(1+2)油藏开发实践出发,形成针对性的开发技术理念,提出针对性开发技术措施以服务于类似油藏的后续开发及治理。主要开展了油藏地质特征研究、顺势开发理念提出、研究区油藏全生命周期中的顺势开发实践研究。研究表明,陇东A区延81+2构造-岩性油藏呈现为西北-东南方向独立构造圈闭特征,物性较好、边底水不活跃、天然驱动能量不足;基于油藏地质特征的顺势开发注重对油藏构造特征、储层岩性物性特征、油水运动规律的运用,针对性制定开发技术政策参数,确保了油藏全生命周期开发的良好效果;合理的注采井网调整和注采技术参数选择、成功的套损修复或必要的侧钻新油井措施,将有助于延缓产量下降和继续稳步提高油藏采收率。
In order to strengthen the development of the structural-lithologic oil reservoir in Jurassic in Longdong Oilfield,targeted technical concept of the development is formed for the development of Yan 8(1+2) reservoir in Jurassic in Area A of Longdong Oilfield and corresponding technical measures are put forward for serving the follow-up development and management of similar reservoir based on the literature research and geology,core,logging and production data collection.Geological characteristics of oil reservoirs are researched,strategical development concept is put forward and applied to the practice of strategical development in the whole life cycle of oil reservoirs in the study area.The results show that the Yan8(1+2) structural-lithologic reservoir in Area A of Longdong Oilfield is characterized by independent structural traps in the northwest to southeast direction with good physical properties,inactive bottom and edge water and insufficient natural driving energy.The strategical development based on geological characteristics of the oil reservoir pays attention to the application of structural characteristics,lithologic and physical characteristics of the reservoir,and oil-water movement rules.Targeted development technology parameters are determined to ensure the good result of the whole life cycle development of the oil reservoir.Reasonable adjustment of injection-production pattern and selection of injection-production technical parameters,successful casing repair or necessary measures of new sidetrack wells will help to delay the decline of production and continue to steadily enhance reservoir recovery.
作者
李建霆
Li Jianting(No.2 Production Plant,PetroChina Changqing Oilfield Company,Qingcheng Gansu 745100)
出处
《中外能源》
CAS
2020年第12期27-31,共5页
Sino-Global Energy
基金
陕西省自然科学基础研究计划一般项目“基于生烃期古构造的致密油有利区识别方法——以鄂尔多斯盆地为例”(编号:2019JM-359)。
关键词
构造-岩性油藏
顺势开发
延8(1+2)油藏
陇东A区
structural-lithologic reservoir
strategical development
Yan 8(1+2)reservoirs
Area A of Longdong Oilfield
