摘要
针对延长油田张台注水项目区开发后期随着注水强度的提升水窜突出的问题,建立油藏机理模型,开展目标油藏异步周期注水方式及注采参数优化研究。模拟结果表明,异步周期注水和二分法周期注水均能有效降低含水率、改善开发效果。对目标油藏进行了现场试验,试验区多数生产井产量稳定,含水率稳中有降,表明异步周期注水是超低渗致密油藏有效的抑制水窜方法。
In view of the problem of water channeling in the Zhangtai water injection project area of Yanchang Oilfield,as the water injection intensity increases in the later stage of development,a reservoir mechanism model was established,and the asynchronous periodic water injection method and injection-production parameter optimization of the target reservoir were studied.The simulation results show that both asynchronous periodic water injection and binary periodic water injection can effectively reduce the water cut and improve the development effect.Field tests were carried out on the target reservoir.The production of most production wells in the test area was stable,and the water cut was stable and decreasing,indicating that asynchronous periodic water injection is an effective method to inhibit water channeling in ultra-low permeability tight reservoirs.
作者
樊欣欣
杭天宇
涂彬
Fan Xinxin;Hang Tianyu;Tu Bin(Fuxian Oil Production Plant of Yanchang Oilfield Co.,Ltd.,Shaanxi 716000;Wuqi Oil Production Plant of Yanchang Oilfield Co.,Ltd.,Shaanxi 716000;China University of Petroleum(Beijing),Beijing 100000)
出处
《石化技术》
2025年第3期212-214,共3页
Petrochemical Industry Technology
关键词
超低渗油藏
异步周期注水
水窜
二分法周期注水
Ultra-low permeability reservoir
Asynchronous periodic water injection
Water channeling
Binary cycle water injection
