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青168井区的长3油藏从1996年开始试采,2003年投入全面开发。历经自然能量的开采,这一阶段地层压力下降快,油田能量供给不足,老井递减幅度大。但由于新井的不断投产,该阶段产油量呈上升趋势,含水略有下降。根据对油井产能状况、油井含水状况、地层能量状况等生产形势分析,找出影响稳产的主要因素,为油区后续开发提供有力保障。
The Chang-3 reservoir in Qing 168 well test-starts in 1996 and was put into full-scale development in 2003. After natural energy exploitation, the pressure of formation in this period drops rapidly, the energy supply of the oilfield is insufficient, and the decline of old wells is large. However, due to the continuous production of new wells, oil production at this stage showed an upward trend with a slight decrease in water content. According to the oil well productivity, well water status, formation energy status and other production situation analysis to identify the main factors that affect the stability of the oil production for the follow-up to provide strong protection.