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本文收集、整理和分析了东营凹陷133口井的地温资料,由此确定的区域地温梯度值为3.6℃/100米。文中论述了东营凹陷地温场的基本特征。指出地温梯度的变化在纵向上大致可划分为四段,这主要是由于岩石热导率的差异而造成的;地温异常在平面上的分布明显地受到区域构造和大断层的控制,并与基底起伏密切相关。文中根据本区生油终止门限温度对石油分布的下限深度进行了预测,认为本区深部尚有相当大的油气潜量可供勘探。
In this paper, the geothermal data of 133 wells in Dongying Sag were collected, collated and analyzed. The geothermal gradient of this area was 3.6 ℃ / 100m. The paper discusses the basic characteristics of geothermal field in Dongying depression. It is pointed out that the change of geothermal gradient can be roughly divided into four sections in the longitudinal direction, which is mainly caused by the difference of rock thermal conductivity. The distribution of geothermal anomaly in the plane is obviously controlled by the regional structure and large fault, Ups and downs are closely related. In this paper, the minimum depth of petroleum distribution is predicted according to the termination temperature of oil generation in this area, and it is considered that there is still considerable hydrocarbon potential in the deep part of this area for exploration.