摘要
针对大庆油田多套井网、多套油组、不同井网之间相互影响,注采对应关系复杂的特点,准确评价油水井间的水驱控制程度将直接制约后期注采精细结构的调整方向。提出了一种统计水驱控制程度的计算方法,给出了三套井网的水驱控制程度的结果,从井距、油层类型、井网密度、采注井数比等4个方面分析了三套井网的水驱控制程度的差异性,最后结合此影响因素分析了水驱控制程度的特征,着重总结了几种水驱不完善的特征。
Aiming at the featrues of Daqing Oilfield having multiple - well pattern, multiple - oil group, the interactions between different well patterns, and the complexity of injection - production relationship, how to evaluate accurately the wa- ter - flooding control degree between wells will directly affect the adjustment direction of injection - production fine struc- ture in the later stage of the oilfield development. Firstly, a calculation method for water - flooding control degree was intro- duced, and then the water - flooding control degree results for three sets of well pattern were figured out. Secondly, the differences of water - flooding control degree of the three well patterns were analyzed from four aspects of well spacing, res- ervoir types, well spacing density, and production factor. Finally, the characteristics of the water - flooding control degree were analyzed by the influence factors, and several imperfect water- flooding characteristics were emphasized.
出处
《复杂油气藏》
2012年第3期56-59,共4页
Complex Hydrocarbon Reservoirs
基金
国家科技重大专项"剩余油分布综合预测与精细注采结构调整技术"(2011ZX05010-002-005)
关键词
杏六中区
水驱控制程度
水驱不完善
井距
water- flooding control degree
Xing- 6 middle district
imperfect water flooding
well spacing
