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安塞油田长10油藏2007年投入开发,层间和平面非均质性较强,导致注入水单向驱替,部分油井含水上升速度快,产能损失严重,递减加大,地层能量保持水平较低,影响区块开发效果。为降低区块递减率,封堵高渗透层,扩大水驱波及体积,近年来结合区块地质特征和开发矛盾,深入开展了长10油藏注水井堵水调剖工艺技术评价,确定堵水调剖技术体系及调剖方式,为长10油藏开发提供了有力的技术支撑。
The Chang 10 reservoir of Ansai Oilfield was put into operation in 2007 with strong interlayer and plane heterogeneity, resulting in one-way flood of injected water. Some of the wells have high water-bearing rate of rise, serious loss of capacity, decrease and increase, and maintain formation energy Lower impact of block development. In order to reduce the rate of block decline, to plug the high permeable layer and to expand the volume and volume of water flooding, in recent years, in combination with the geological characteristics of the block and the contradiction between development, the technology of water plugging and profile control of water injection wells in Chang 10 reservoir has been deeply evaluated. The profile control technology system and the profile control mode provide strong technical support for the development of Chang 10 reservoir.