岩性油气藏 ›› 2020, Vol. 32 ›› Issue (6): 172180.doi: 10.12108/yxyqc.20200617
• 石油工程 • 上一篇
刘博1, 徐刚1, 纪拥军2, 魏路路1, 梁雪莉1, 何金玉2
LIU Bo1, XU Gang1, JI Yongjun2, WEI Lulu1, LIANG Xueli1, HE Jinyu2
摘要: 为探索和解决准噶尔盆地吉木萨尔区块页岩油藏水平井体积压裂和平台式拉链压裂过程中人工裂缝网络的成像问题,储层改造方案采用高密度密集切割体积压裂充分改造储层,大排量施工满足多簇、多缝充分开启,滑溜水和胍胶逆混合压裂工艺实现高效造缝携砂,结合多种粒径支撑剂有效充填微细裂缝及主体人工裂缝。通过微地震井中监测技术识别页岩油水平井人工裂缝网络。结果表明:断层和天然裂缝带对微地震事件属性特征有影响,同时事件属性特征也能表征断层和天然裂缝的发育程度。在大规模体积压裂改造下,研究区内4口井的人工裂缝横向相互连通,形成了复杂的裂缝网络。压后投产初期的日产油量得到了较大提升,为该区页岩油的长期高效开发提供了技术依据。
中图分类号:
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