海一块注水综合调整技术的研究与应用

Research and Application of Water Injection Complex Regulation Technique in HAI 1 Block

海一块为层状边水普通稠油油藏,投入开发以来,不断加强注水工作,取得了较好的开发效果。随着油藏进入高含水开发阶段,受储层非均质性影响,平面、层间水淹状况差异逐年增大,剩余油分布日趋零散,注水开发调整难度逐年增大。通过分析开发矛盾,研究剩余油分布规律,在完善注采系统、注水井细分重组、整体调堵、动态监测、不稳定注水及合理量化采液强度等方面实施了有针对性的注水调整及配套稳产措施,保证了断块的持续稳产。

Hai 1 block belongs to normal thick oil reservoir with boundary water, and it is keeping water injection operation for oil production, and gaining better production efficiency. It is difficult for production with water injection due to the high water saturation and reservoir heterogeneity, huge wa- ter flush difference between the level and layer every year. Residues left spread here and there. Measures are taken after analyzing the development problem and researching residue spread conditions, completed injection and production well pattern, dynamic monitoring, regulation plugging pat- tern, production rational for steadily production in this fault.