平湖油气田稀油高渗透底水油藏水平井开发跟踪研究

东海平湖油气田的H2^3 4油藏为块状底水油藏，参数敏感性研究认为：水平井开发H2^3 4油藏效果明显，水平井应沿构造长轴方向布井，长度以600m为宜。设计的A3水平井目前含水36％，日产油423m^3，采油速率为3．5％，处于中含水低速开发阶段。油藏动态跟踪研究与开发实践相结合，可以及时调整和修改开发技术政策，缓解开发矛盾。经过动态跟踪研究对地质模型及开发方案进行调整后，采收率比初期开发方案设计指标提高5．01％。

Continuously monitoring the horizontal well development performance of Pinghu oil-gas field with low viscosity and high permeability and bottom water

H 2 3+4 reservoir of Pinhu oilfield is the bottom water drived lumpish reservoir in East China Sea.The research of reservoir parameter sensitivity has identified that the development effect using the horizontal well to H 2 3+4 reservoir is well, the horizontal wells would be arranged along the major axis of the structure and 600 meters would be suitable for the drilling lenth of the horizontal well.At present,watercut of the devised horizontal well A3 is 36%,its production rate is 423 m 3,and the oil recovery rate is 3.5%,so it is at the middle watercut development stage with low rate. The combination of continuously monitoring the reservoir with the development practice can adjust and modify the development technology administrative policy in time and improve the development contradiction.After the adjustment of the development project by using the continuously monitoring research,the recovery rate of the reservoir has rised 5.01% higher than that of primary development project.