三江盆地前进坳陷油气地质调查新进展

The progress in oil and gas survey in Qianjin Depression of Sanjiang Basin

随着东北大型含油气沉积盆地油气勘探难度越来越大,老油田开发程度已进入中后期,亟需新的油气区接替。三江盆地作为松辽盆地外围7个一级远景盆地之一,具有较大的油气勘探潜力。最近在三江盆地前进坳陷开展了一系列油气地质调查工作,在中生界泥页岩、晚古生界暗色泥岩地层及硅质岩生烃潜力方面取得了新的进展与认识,对评价该区油气资源潜力、进行下一步油气勘探工作具有重要意义。

With increasing difficulty in the development of oil and gas exploration in large oil and gas-bearing basins in Northeast China, old oil field development level has entered the late stage, and the detection of new oil and gas areas is an urgent task. As one of the seven primary prospective basins in the periphery of the Songliao Basin, Sanjiang Basin has a great potential for oil and gas explora-tion. Through a series of oil and gas geological survey work carried out in the Sanjiang Basin recently, the authors made some new progress and obtained new understanding in such aspects as biogas resources, dark mudstone in Late Paleozoic strata and hydrocarbon potential of silica rock. The results obtained by the authors are of great significance for evaluation of oi l and gas resource potential and the further oi l and gas exploration work.