塔河12区是塔河油田的重点开发区块,属区域不整合面下灰岩溶蚀孔洞缝型块状油藏。原油从正常原油至重质稠油,并具有东南部轻、西北部重的特征。主要受控于早期改造、后期油气充注及灰岩储层非质性。 Tahe 12 area is the key development zone of Tahe Oilfield, which belongs to limestone dissolution hole seam type block reservoir under the regional unconformity. Crude oil from normal crude oil to heavy heavy oil, and with southeastern light, northwest heavy features. Mainly controlled by the early transformation, late hydrocarbon filling and limestone reservoir of non-qualitative.