摘要
通过对文东油田文 2 0 3断块储层岩石的压力敏感性伤害程度的研究 ,认为在油藏投产后 ,随地层流体的采出 ,地层孔隙压力逐渐降低 ,储层上覆有效压力增大 ,导致储层渗透率有较大的降低 ,影响了深层低渗储层油田注水开发的效果 ,提早注水和保持压力开采是防止压力敏感性伤害 。
According to the research of the degree of rock injury to pressure sensitivity in block Wen203,Wendong oil field, the article considered that formation pore pressure relief and overlying effective pressure increment with the production of fluid after putting into production of reservoirresulted in remarkable reduce of reservoirpermeability and influenced the water injection response in deep seated and low permeable reservoir, so water injection ahead of time and keeping pressure production were the primary way avoiding to pressure sensitivity injury and keeping percolation ability of reservoir.
出处
《西部探矿工程》
CAS
2004年第7期59-60,共2页
West-China Exploration Engineering
基金
中国石化股份有限公司"十条龙"项目"复杂断块油田提高采收率技术 (P0 1 0 34)"资助
关键词
深层低渗储层
压力敏感性
储层伤害
渗透率
有效压力
deep seated and low permeable reservoir
pressure sensitivity
reservoirinjury
permeability
effective pressure
