论文部分内容阅读
渤南洼陷经过40年勘探,资源探明程度已达65%,继续勘探难度很大。本文对渤南洼陷北部地区的勘探潜力进行了分析,通过零星探井的试油试采特征,证明渤北地区有较大的勘探潜力,勘探开发的关键是描述储层沉积特征。通过高精度层序地层分析建立精细的地层格架,应用沉积相分析、相控储层描述技术、测井约束反演技术对渤北地区沙三段浊积砂岩沉积模式由以前认识的席状砂更新为水道砂,首次在渤北地区识别出浊积水道砂体,经过钻探得到证实,完钻16口井钻遇油层到8-15.0米,油井投产日油达到30-95吨,取得显著效果,为该地区以及同类地区隐蔽油藏勘探指明了方向。
After 40 years’ exploration, the provenance of the Bonan Sag has reached 65%, which makes exploration difficult. In this paper, the exploration potential in the northern Bonan Sag is analyzed. Through exploratory oil exploratory mining features of sporadic exploratory wells, it is proved that there is great exploration potential in the northern Bohai region. The key of exploration and development is to describe reservoir sedimentary characteristics. By means of high-precision sequence stratigraphy analysis, a fine stratigraphic framework was established. Sedimentary facies analysis, phase control reservoir description technique and well logging constrained inversion technique were used to analyze the sedimentary models of turbid sandstone in the third member of the Bohai region from the previously- The sand was updated to channel sands. For the first time turbid water channel sand bodies were identified in the Bo-Bei area. After drilling, 16 wells were drilled to reach 8-15.0 meters and oil wells reached 30-95 tons. The remarkable effect has pointed out the direction for subtle reservoir exploration in this area and the like.