CAJ | 학술논문

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。
침대대경유전다투정망、다투유조、불동정망지간상호영향，주채대응관계복잡적특점，준학평개유수정간적수구공제정도장직접제약후기주채정세결구적조정방향。제출료일충통계수구공제정도적계산방법，급출료삼투정망적수구공제정도적결과，종정거、유층류형、정망밀도、채주정수비등4개방면분석료삼투정망적수구공제정도적차이성，최후결합차영향인소분석료수구공제정도적특정，착중총결료궤충수구불완선적특정。
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.