摘要
琼东南盆地最大特点是具高温超压的沉积盆地。盆地平均地温梯度在 4℃ /1 0 0m以上 ,不同地带地温梯度存在明显差异。影响地温场的因素主要有火山活动、莫霍面埋深、断层活动和岩石性质。琼东南盆地独特的温压场在很大程度上决定了区内油气的演化与分布。目前超压问题已成为海洋油气勘探的热点话题 ,文章旨在通过对琼东南盆地“三场”特征的描述来说明琼东南盆地超压体的存在及其与油气分布的关系 。
QiongDongNan Basin is characterized by high geotherm and geopressure. Its average geothermal gradient is higher than 4℃/100m. The factors influencing the geothermal field include volcanic activity, Moho depth, fault activity and lithology. The unique geotherm-pressure field controls the hydrocarbon evolution and distribution. Now, the issue of overpressure has become the hot issue. This paper, using description of 'three fields', is to say the relationship between overpressure and distribution of oil and gas.
出处
《海洋石油》
CAS
2003年第1期15-22,共8页
Offshore Oil
关键词
超压体
三场
油气分布
overpressure
three fields
distribution of oil and gas
