摘要
在密井网条件下,利用井震结合储层研究方法对顺直型、低弯曲型分流河道的沉积环境和砂体展布特征进行了研究。对砂体认识更接近客观实际。顺直型水下分流河道形成了许多分叉小水道和窄河道的侧向摆动现象。较宽河道内部存在零星河间砂,低弯曲型水下分流河道形成了许多宽河道间小型过水道等情况。根据注采完善程度以及新钻井水淹状况对剩余油进行了分类研究,在目前高含水开发阶段对指导油田二次开发调整具有重要意义。
The reservoir of sedimentary environment and sand body distribution of straight or low-sinuosity distributary channel were carried out in the dense pattern condition. The sedimentary facies maps of main layer were redrawn using GPTmap software. Sand body changed greatly after recognition. Many small waterways and narrow bifurcation channel were formed by straight underwater distributary channel. A wide river existed within the sporad- ic river sand. Low bending type underwater distributary channel formed many wide river small live channel and wide channel internal sporadic independent river sand. The original prediction of river sand drilled fiver sand. The remaining oil is classified according to the degree of perfection and injection-production well watered-out status of dfilling. This is important for the oil field development of the two times adjustment in the current period of high watercut development.
出处
《科学技术与工程》
北大核心
2012年第35期9662-9666,共5页
Science Technology and Engineering
基金
国家重大专项"高含水油田提高采收率新技术"(ZX05010)资助
关键词
水下分流河道
沉积作用
剩余油
subaqueous bistributed channel sedimentation remaining oil
