reservoir in maliang sag which is the main oil producing area in santanghu basin of tuha oilfield is typical low permeable fracture type reservoir.
马朗凹陷是吐哈油田三塘湖盆地的主要产油区,属典型的低渗裂缝性油藏。
jizhong area, the main oil producing area of north china field, has been in high degree of exploration at present. 3-d seismic prospecting blocks have been connected.