摘要
海上低渗凝析气田缺乏成熟的开发开采经验,且受限于平台空间、设备、成本等因素,井下增产措施难于开展。针对南海西部首个低渗凝析气田(A气田),存在地层能量不足、近井地带污染、生产井反凝析严重、井筒积液风险淹井等生产特征,通过整体分阶段深度降压、低效井治理、地面工艺设施工作制度优化等措施提高生产井采收率,累计增产超千万立方米,同时对同类低渗凝析气田生产开发具有较强的指导意义。
The offshore low-permeability condensate gas field lacks mature development and production experience,and is limited by factors such as platform space,equipment,and cost,and it is difficult to implement down hole stimulation measures.In view of the production characteristics of the first low-permeability condensate gas field(A gas field)in the western South China Sea,there are insufficient formation energy,pollution near the well,serious retrograde condensate of production wells,and risk of wellbore flooding.Through the overall staged deep depressurization,measures such as treatment ofinefficient wells and optimization of the working system of surface technology facilities have increased the recovery rate of production wells,and the cumulative production has increased by more than 10 million cubic meters.At the same time,they have strong guiding significance for the production and development of similar low-permeability condensate gas fields.
作者
张祥荣
胡海洋
ZHANG Xiang-rong;HU Hai-yang(CNOOC(China)Ltd.,Zhanjiang 524057,China)
出处
《化工管理》
2021年第34期197-198,共2页
Chemical Engineering Management
关键词
海洋石油平台
凝析气田
生产井
采收率
offshore oil platform
gas condensate field
production well
recovery factor
