大庆外围葡萄花油层水平井开发适应性评价及调整对策

EVALUATIONS AND ADJUSTING COUNTERMEASURES OF THE HORIZONTAL WELL DEVELOPMENT ADAPTABILITY FOR PUTAOHUA OIL LAYERS IN DAQING PERIPHERAL OILFIELDS

从井网与地质条件匹配、注采系统完善状况、工艺措施与效果三方面建立了水平井开发适应性评价体系,确定了12项适应性评价指标标准,并对大庆长垣外围油田葡萄花油层水平井开发适应性做出了系统评价,针对适应性评价结果及存在问题提出了相应的调整对策。研究形成的水平井开发适应性评价技术对扶杨油层、特低丰度萨葡油层水平井开发具有指导意义。

Horizontal well development adaptability evaluating system was established and standards of twelve adaptability evaluating indexes were set from three aspects i. e. the matches between the well patterns and geological conditions,perfected conditions between the injection and production system and technological measures and effects. At the same time the systematic evaluation of the adaptability was achieved for Putaohua oil layers in the peripheral oilfields of Daqing Placanticline,and moreover the corresponding adjusting countermeasures were put forward in the light of the evaluated results and the existed problems. The achieved development adaptability evaluating technique of the horizontal well is certain to possess the guiding significances for the development of Fuyang oil layers and the specially lower abundance reserves of Sa-Pu oil reservoirs.