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孤岛油田属疏松砂岩油藏,开发层系多,井段长,历经40多年的开发,注水井吸水剖面及油井产液剖面明显改变,储层剖面的改变导致油水井层间矛盾加剧,严重影响了油田的开发效果。为此,现场采用细分注水、分层注聚、水井调剖、油井堵水堵聚及氮气泡沫调剖辅助注汽等技术,有效地改善了油水井剖面现状,为孤岛油田的高效开发奠定了坚实的基础。
Gudao Oilfield is a loose sandstone reservoir with many development strata and well sections. After more than 40 years of development, the water injection profile of oil well and the production fluid profile of oil well have changed obviously. The change of reservoir profile leads to aggravating the contradiction between oil and water wells and seriously affecting The development of the oil field effect. Therefore, the technologies of subdivision injection, stratified injection and injection, well profile control, oil well plugging and nitrogen injection foam profile auxiliary steam injection have been adopted to effectively improve the profile of oil and water wells, laying a solid foundation for the efficient development of Gudao Oilfield A solid foundation.