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在油田注水开发过程中,油层的不均质性和各小层渗透性的差异,往往造成水线推进不均匀,注入水单层突进,从而引起生产井早期水淹,层间干扰加剧,油井产量下降。因此,准确地判断生产井出水层位,继而采取隔水、堵水的有效措施,就成为挖掘老井生产潜力、掌握高产稳产主动权的重要课题。
In the process of oilfield waterflooding, the heterogeneity of the oil layer and the difference of the permeability of the small layers often result in the waterline being unevenly distributed and the water injection into the water layer suddenly leads to the early flooding of the production well and the inter-layer interference aggravate. The oil well Production decline. Therefore, it is an important issue to tap the production potential of old wells and master the initiative of high-yield and stable production accurately by judging effectively the water level of producing wells and then taking effective measures of water-resisting and water-blocking.