华南地质2025，Vol.41Issue(4)：734-740,7.DOI:10.3969/j.issn.2097-0013.2025.04.005
气顶边水油藏最优井位确定方法
Optimization Method for Well Placement in Gas-Cap Edge-Water Reservoirs
摘要
Abstract
Aiming at the problem that it is prone to gas invasion or water flooding after production,of gas cap edge-water reservoirs,leading to unsatisfactory development outcomes,an optimal well placement equation was established based on the material balance equation.This equation incorporates factors such as gas cap index,edge water multiple,production benefit conditions,production pressure differential,and reservoir permeability ratio,and the impact of well placement determined by integrating these parameters on productivity was studied.The results show that:(1)The optimal well placement method reflects the inherent relationships among various reservoir parameters.For specific reservoirs,after obtaining relevant parameters,the formula can be used for reasonable well placement.(2)The main factors influencing well placement are the strength of the gas cap index and water body multiple,followed by the production pressure differential.In contrast,the reservoir permeability ratio and benefit index are less sensitive.(3)For gas cap reservoirs,reasonable optimization of well placement by utilizing the gas cap index and water body multiple,along with proper control of the production pressure differential,can effectively balance gas invasion and water flooding,maximizing development benefits.The research findings provide an important basis for optimizing well placement in gas cap edge-water reservoirs and offer technical support for achieving efficient,stable,and high-yield development of gas cap reservoirs.Field practices have demonstrated good applicability.关键词
双向驱/气顶油藏/边水油藏/驱动指数/受益指数/最优井位Key words
bidirectional drive/gas cap reservoir/edge water reservoir/drive index/benefit index/optimal well deployment分类
天文与地球科学引用本文复制引用
窦松江,李涛,李炼民,江艳平..气顶边水油藏最优井位确定方法[J].华南地质,2025,41(4):734-740,7.基金项目
中石油天然气股份有限公司科技重大专项"陆相页岩油规模增储上产与勘探开发关键技术研究"(编号:2023ZZ15YJ01) （编号:2023ZZ15YJ01）
