本文選題：稠油 + 泡沫��； 參考：《油氣地質(zhì)與采收率》2017年05期

【摘要】：蒸汽驅(qū)易發(fā)生汽竄,且蒸汽波及效率低,開(kāi)發(fā)效果不理想,為探索稠油油藏提高采收率的新途徑,在勝利油區(qū)孤島中二北Ng5稠油單元開(kāi)展泡沫輔助蒸汽驅(qū)礦場(chǎng)試驗(yàn)。針對(duì)蒸汽驅(qū)高溫特點(diǎn),研發(fā)適用于蒸汽驅(qū)的耐高溫泡沫劑DHF-1,該泡沫劑具有良好的耐溫和封堵性能,300℃以下阻力因子始終大于20;室內(nèi)驅(qū)替實(shí)驗(yàn)結(jié)果表明,泡沫輔助蒸汽驅(qū)可有效改善蒸汽波及狀況,提高驅(qū)油效率。2010年10月開(kāi)始泡沫輔助蒸汽驅(qū)礦場(chǎng)試驗(yàn),注汽井注汽壓力平均上升1.6 MPa,油井全部見(jiàn)效,示蹤劑監(jiān)測(cè)平面驅(qū)替更均衡,密閉取心井巖心分析平均驅(qū)油效率達(dá)62.4%,說(shuō)明泡沫輔助蒸汽驅(qū)可提高蒸汽前緣的穩(wěn)定性,抑制蒸汽突進(jìn),明顯改善開(kāi)發(fā)效果;截至2016年6月,試驗(yàn)區(qū)已累積產(chǎn)油23.6×10~4t,采出程度為52.1%,較蒸汽吞吐已提高采收率16.8%。
[Abstract]:Steam channeling is easy to occur in steam drive, and the steam sweep efficiency is low, and the development effect is not ideal. In order to explore a new way to improve oil recovery in heavy oil reservoir, foam auxiliary steam drive field test was carried out in the Ng5 heavy oil unit in Gudao, Shengli oil area. In view of the high temperature characteristics of steam flooding, the foam agent DHF-1, which is suitable for steam flooding, is developed. The foam agent has good temperature resistance and plugging performance, and the resistance factor below 300 鈩，

本文編號(hào)：1796419