T油田注入水控制指标研究

Study of Water Injection Control Index in T Oilfield

T油田吸水能力普遍较低,注入困难,因此有必要研究注入水控制指标。通过研究注入水悬浮固体含量和悬浮颗粒直径中值控制指标、注入水含油量控制指标、注入水腐蚀评价及控制指标、细菌控制指标试验,推荐了其相应的注入水主要控制指标;由注入水辅助性控制指标试验,推荐T油田油藏注入水溶解氧指标≤0.05mg/L,Fe^(3+)含量指标≤0.1mg/L,注入水硫化氢含量和蚀性二氧化碳不必控制,并对注入水水质控制指标进行合理性检验,并最终推荐了注入水标准。

Absorption capacity in T Oilfield is generally reduced,water injection is difficult. Therefore it is necessary to study the control indexes of water injection. By studying the control indicators of water suspended solids and median diameter of suspended particles,control indicators of oil content in water injection,water injection corrosion evaluation and the control indicators and the bacterial control indicator experiment,the main control indicators of corresponding water injection are recommended. By the auxiliary experiment for the injection of water control indicators,it is recommend that in T Oilfield water injection indicator for dissolved oxygen is ≤ 0. 05 mg/L. Fe^(3+)content indicator is≤0. 1mg/L,hydrogen sulfide content in the injected water and injected carbon dioxide is not controlled,the control indicators of injected water quality is reasonably inspected,and the injected water standard is recommended.