南海西部海域油气田开发技术进展及发展方向

Progress and future development direction of oil and gas development technologies for western South China Sea oilfields

南海西部油田已成为中国南方重要的能源生产基地,在实现稳产上产的过程中面临老油气田增产挖潜、海上新领域(高温高压、深水)气藏开发难度大以及海上低品位储量动用困难等问题。经过不断探索实践,形成了以老油气田增产挖潜、新领域高效开发以及低品位储量有效动用为核心的南海西部油气田上产关键技术系列,推动了南海西部油气田稳产上产。进一步深入分析南海西部油田在老油气田提高采收率、超高温高压低渗气藏有效开发方面仍面临的挑战,提出了对应的技术发展方向,加强相关技术储备,从而为南海西部油气田高效开发及提高采收率奠定坚实技术基础,为其他区域油气田稳产上产提供借鉴。

Western South China Sea oilfields have become an important energy production base in South China.However,during the process of achieving stable and increased production,these oilfields face the problems such as increasing production and tapping potential of old oil and gas fields,having great difficulties in developing offshore new field(HTHP and deep-water)gas reservoirs and in producing low-grade offshore reserves,etc.After continuous exploration and practice,a series of key technologies for increasing oil and gas production in the western South China Sea have been formed,which include increasing production and tapping potential of old oil and gas fields,efficient development of new fields and effective production of low-grade reserves.These technologies have promoted the stable and increased production of oil and gas fields in the western South China Sea.The paper further analyzes the challenges still faced by the Western South China Sea oilfields in enhancing the recovery of old oil and gas fields and effective development of ultra-high temperature,high pressure and low permeability gas reservoirs,puts forward the corresponding technology development direction,and strengthens relevant technology reserves.This will lay a solid technical foundation for the efficient development and enhanced oil recovery of oil and gas fields in the western South China Sea,and provide reference for the stable and increased production of oil and gas fields in other regions.