摘要
为解决吐哈盆地丘陵油田陵二西区三间房组油藏注水开发中存在的油井压力低、产量低、含水上升快和水井注水压力接近油层破裂压力等一系列问题,利用动态分析方法,对该区块注水开发动态特征进行了深入分析。结果表明:该区块油井具有单井多层、单层单向受效的特点,见水呈单层单向和双层双向两种方式。见效时间与见水时间有一定的正相关关系,当见效时间太短或太长时,都可能在见效后短时间内就见水;当见效时间为8～14month时,油井见效后过较长时间才见水。游离的小气泡所产生的气阻效应不应忽视,它可能是造成目前生产中存在问题的主要因素。油田动态特征还受砂体沉积相环境、构造、射孔、砂体的展布方向及储集层物性因素的影响。
There are many problems in the waterflood development of Sanjianfang Formation reservoir of Qiuling Oilfield, including low formation pressure and oil production, rapid increase of water cut and the pressure of water well is approaching fracture pressure. To solve these problems, waterflood behaviors are studied thoroughly by using performance analysis. The results suggest that the characters of the production wells are multi-layers per well, single direction response per layer, single direction per layer and two directions per two layers of water breakthrough. There is positive correlation between the response time and water breakthrough time, and the water breakthrough will come soon after responding if the response time is too short of too long. If the response time is 8-14 months, the water breakthrough comes late after response. Gas block phenomenon should not be ignored as it is probably the key factor causing the problems existing in waterflood development. Waterflood behaviors could also be affected by sedimentary, structure, perforation, the extending direction of sandstone body and reservoir physical property.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
2004年第4期116-119,共4页
Petroleum Exploration and Development
关键词
丘陵油田
注水开发
见效见水
气阻效应
地层压力
Qiuling Oilfield
waterflood development
response and water breakthrough
gas block phenomenon
formation pressure
