高二、三区气顶稠油油藏合理开发技术政策研究

高升油田高二、三区为辽河油田区典型的下第三系块状气顶稠油油藏，气顶具有较大的驱油能量，在开发初期取得较好的效果。随着开发的深入，气顶稠油油藏开发过程中暴露的矛盾日益尖锐，气顶气窜严重影响握顶稠油油藏的正常开发，造成油气资源的损失。针对这些问题，本文在综述前期有效做法的基础上，运用数值模拟对影响气窜的关键因素（垂向渗透率，气层油层压差，油层避射厚度等）进行了定量化研究，确定了关键因素相关的技术界限及油藏开发的合理井网密度，为目前油气层措施挖潜，提高油层油气最终采收率及下一步开发方式的有效转换提供决策依据。

Reasonable development of gas - cap heavy oil reservoirs in block Gao 2 and 3

Block Gao 2 and 3 of Gaosheng oilfield are typical gas cap, massive heavy oil reservoirs in lower tertiary of Liaohe oil province. The gas cap had great oil displacement energy and functioned efficiently during the initial production period. As development going deeply, gas channeling from gas cap affected the normal development severely, resulting in loss of oil and gas production. This paper summarizes the technical policies applied in development of gas cap heavy oil reservoir and analyses gas channeling factors with numerical simulation.