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新浅45区块油藏属于浅薄层稠油油藏,目前已进入高周期吞吐阶段,汽窜程度加剧,高吞吐周期油井生产效果变差,低部位油井受边水影响,后备层不足,措施挖潜余地小,为改善区块吞吐效果,对高周期吞吐井进行返层生产,对汽窜严重的井区加大措施调剖力度,作好汽驱前期准备,为抑制边水推进速度采取短周期注汽和氮汽泡沫调剖。
The new Shallow 45 block reservoir belongs to the shallow thin-layer heavy oil reservoirs and has now entered the high-cycle phase of throughput. The degree of steam channeling is aggravated. The production efficiency of high-throughput oil wells deteriorates. The low-level wells are affected by the edge water and the reserve layer is insufficient. In order to improve the throughput of the block, the backwashing of the high-cycle well was carried out. The intensity of profile control was increased for the well with severe gas channeling and the preliminary preparation for the steam flooding was made. Cycle Steam Injection and Nitrogen Bubble Profile Control.