摘要
杏树岗油田低渗透储层粘土矿物含量较高 ,储层伤害较严重 ,注水井存在着吸水厚度低、吸水能力差的问题。文章在杏树岗油田低渗透储层敏感性研究的基础上 ,研究了CY0 1油层保护技术和CY0 2油层酸化改造配套技术。室内实验和现场试验表明 ,该配套技术能有效提高注水井吸水厚度 ,增大油层吸水能力 ,并且现场施工成功率高、有效期较长 。
In XingShuGang oil field,high content of clay mineral in low permeability formation cause serious formation damage.Injection wells have problems of little hygroscope thickness and low hygroscope capacity. On the basis of the sensitivity study of low permeability formation of XingShuGang oil field, this paper has summarized CY01 technology of oil formation protection and CY02 aciding reformation technology of oil formation.Used in 19 water injection wells show that this form compel set technology can increase hydroscope thickness of injection wells and improve hydroscope capacity of oil formation,and it has high success rate of site operation and the long term of validity.So this form compel set technology can satisfy the requests of water flooding of low permeability formation of XingShuGang oil field.
出处
《海洋石油》
CAS
2003年第1期42-48,共7页
Offshore Oil
关键词
堵塞机理
油层保护
化学解堵
现场试验
plugging mechanism
oil formation protection
chemical removal
site operation
