辽河油区低品位石油储量初步规划方案研究

Research on the Preliminary Planning Scheme of Low-grade Oil Reserves at Liaohe Oil Region

辽河油区低品位石油储量达3.68×108 t,占探明未开发储量的76.7%,合理有效利用这部分资源,将成为保持油区原油千万吨稳产的重要条件。应用理想点法筛选出111个低品位储量潜力区块,运用频率分析法确定了储量动用率、单井控制储量、采油速度、单井日产能力等规划参数,运用单控储量法和采油速度法对初步规划方案进行了优化比选。研究结论：规划未开发低品位各类油藏井数共计970口,建成产能78.7×10~4 t/a,预计动用储量9 400×10~4 t,预计可动用可采储量1 410×10~4 t。

The low-grade oil reserves amounted to 3.68×10~8 ton at Liaohe oil region, accounting for 76.7% of proved undeveloped reserves. Utilizing this part of the resources rationally and effectively will become an important condition for maintaining stable oil production of 10 million tons. By using the ideal point method, 111 potential blocks with low-grade oil reserves were selected. By using frequency analysis method, it can determine the reserve production ratio, single well controlled reserves, oil production rate, and oil productive capacity daily per well and other planning parameters. Using single-controlled reserve method and oil production rate method, the preliminary plan is optimized. The research conclusion shows that a total of 970 wells have been planned for various types of low-grade oil reservoirs, the production capacity can reach to 78.7×10~4 ton per year, producing reserves is estimated to 9 400×10~4 ton, and producing recoverable reserves is 1410×10~4 ton.