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火山岩注水开发存在水窜水淹、见水不见效的风险,针对辽河油田小22块裂缝性油藏裂缝分布特征,油田开发生产特征,压降规律及水锥规律,在注水开发适应性、可行性、必要性研究基础上,在局部进行注水试验。试验表明:火山岩注水见效与否的关键取决于储层裂缝特征、油井含水高低、注水时机、注水方式及注采比。初步认为目前油田注水是有效的,应继续扩大注水规模,坚持注水开发。
According to the distribution characteristics of fractures in small 22 fractured reservoirs in Liaohe Oilfield, the characteristics of development and production in oilfields, the pressure drop and the law of water coning, it is feasible to develop waterflooding adaptability and feasibility On the basis of the research on the nature and necessity, the water injection test was performed locally. Experiments show that: the key to the effectiveness of volcanic water injection depends on the characteristics of reservoir fractures, oil well water level, timing of water injection, water injection method and injection-production ratio. Initially that the current oilfield water injection is effective, should continue to expand the scale of water injection, adhere to water development.