八面台油田单井产能控制因素研究

统计分析表明，八面台油田油井产能主要受断层、沉积微相和储层物性控制。对于构造油藏，位于断层上升盘的油井在投产初期要比位于下降盘上的油井产油量高、含水低、开发效果好。同时，高产井主要分布在距离断层50～100m的范围内，油井距离断层越远。获得高产井的概率越小，获得低产井、特低产井的概率就越大。岩性油藏的单井油气产能主要受沉积砂体控制，八面台油田部署在分流河道砂体上的油井开发效果最好，而位于三角洲前缘席状砂上的油井开发效果最差。

Analysis on Controlling Factor of Individual-Well Productivity in Bamiantai Oilfield

Mathematical statistics study shows that oil-well productivity of Bamiantai oilfield is controlled by fault,sedimentary micro-facieses and reservoir properties.As for structural hydrocarbon reservoir,the oil well on up-thrown block has higher daily oil production,lower water cut and better development performance compared with the oil well on down-thrown block in block faulted oilfield.Besides,the distance from producer to fault has an important effect on well productivity,high capacity well mainly lies within 50~100m to the fault.The further the oil well off to the fault,the lower productivity is obtained.In addition,it shows that the oil well allcoated on channel sand has highest daily oil production,lowest water cut and best development performance,while oil well allocated on delta front sand has lowest daily output,highest water cut and worst development performance.Also,the reservoir property of high capacity well such as net thick,porosity,permeability and saturation is presented by statistical method.The study results have important realistic meanings and reference value in the next-sep well pattern adjustment or modification of the low permeability reservoir.