摘要
东营凹陷郝家油田河4断块沙二10砂组为深水浊积扇沉积,储层横向变化快,非均质性强,孔渗相关性好,为中孔中渗储层。沙二10油藏类型主要为断块油藏、断层–岩性油藏、岩性油藏,分布在河4断层及其派生断层附近、长轴背斜高部位,各主力油层砂体不连片,油气的聚集和分布受构造幅度、断层及沉积微相的共同控制。
Es_2 10 sand group in He-4 block of Haojia oilfield in Dongying sag is a deep-water turbidite fan deposit,with rapid lateral changes,strong heterogeneity and good pore-permeability correlation,and it is a medium-pore-permeability reservoir.The reservoir types of Es_2 10 sand group are mainly of fault block reservoir,fault-lithologic reservoir and lithologic reservoir,which are distributed near He-4 fault and its derived fault and at the high position of the long axis anticline,while the sand bodies of each main oil layer are not connected.The accumulation and distribution of oil and gas are controlled by the structural amplitude fault and sedimentary microfacies.
引文
[1]刘宝珺.沉积岩石学[M].北京:地质出版社,1980:80–100.
[2]饶孟余,钟建华,王夕宾,等.东营凹陷东部沙三段滑塌浊积砂体沉积特征[J].煤田地质与勘探,2004,32(3):15–17.
[3]彭勇民,彭玉林,曾联波,等.济阳坳陷车15井区沙三下浊积扇沉积特征及分布格局[J].西安石油大学学报(自然科学版),2012,27(4):30–35.
[4]郑荣才,文华国,韩永林.鄂尔多斯盆地白豹地区长6油层组湖底滑塌浊积扇沉积特征及其研究意义[J].成都理工大学学报(自然科学版),2006,33(6):566–575.
[5]张萌,田景春.“近岸水下扇”的命名、特征及其储集性[J].岩相古地理,1999,19(4):42–52.
[6]刘传虎.砂砾岩扇体发育特征及地震描述技术[J].石油物探,2001,40(1):64–72.
[7]范振峰.车西洼陷北带湖底扇成因机制及其勘探意义[J].新疆石油地质,2007,28(1):48–50.
[8]孙雨轩,李立峰,张阳,等.复杂断块油藏夹层描述及对剩余油控制研究[J].复杂油气藏,2018,11(1):37–42.
[9]王亚青,林承焰,董春梅,等.东营凹陷史115浊积扇油藏储层非均质性的时空演变规律及主要控制要素研究[J].西安石油大学学报(自然科学版),2008,23(2):16–19.