【摘要】：為了尋找含油氣盆地下生上儲式生儲蓋組合中油氣分布規(guī)律,在油氣成藏過程及模式研究基礎上,對油源斷裂與其他成藏要素的空間匹配關系及控藏作用進行了探討。結果表明:斷—源空間匹配關系控制著油氣成藏的平面分布范圍,其中斷—多源空間匹配關系油氣最富集,其次是斷—單源空間匹配關系,最差為斷—無源空間匹配關系;斷—蓋空間匹配關系控制著油氣成藏的縱向分布范圍,斷接厚度大于封油氣所需的最小斷接厚度,油氣在其下成藏,反之油氣在其上、下均有成藏;斷—砂空間匹配關系控制著油氣成藏的層位,高砂地比地層是油氣側向分流運移和成藏的有利位置;斷—圈空間匹配關系控制著油氣聚集的部位,油源斷裂附近的圈閉易于形成油氣藏。
[Abstract]:In order to find out the distribution law of oil and gas in the lower generation and upper reservoir cap rock assemblage in petroliferous basins, the spatial matching relationship and reservoir control between oil source faults and other reservoir forming elements are discussed on the basis of the study of oil and gas accumulation process and model. The results show that the fault-source spatial matching relationship controls the plane distribution range of oil and gas accumulation, and the interrupt-multi-source spatial matching relationship is the most abundant, followed by the fault-single source spatial matching relationship, and the worst is the fault-passive spatial matching relationship. The matching relationship between fault and cap space controls the longitudinal distribution range of oil and gas accumulation. The disconnection thickness is greater than the minimum disconnection thickness needed to seal oil and gas, and oil and gas are formed under it, on the contrary, oil and gas are formed in the upper and lower parts of the reservoir. The fault-sand space matching relationship controls the horizon of oil and gas accumulation, and the high sand-to-ground ratio formation is a favorable position for lateral shunt migration and accumulation of oil and gas. The fault-circle space matching relationship controls the accumulation of oil and gas, and the trap near the oil source fault is easy to form oil and gas reservoirs.
【作者單位】： 大慶油田有限責任公司第三采油廠;
【基金】：國家自然基金項目“油源斷裂轉換帶優(yōu)勢輸導油氣條件研究”(41372153)
【分類號】：P618.13
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本文編號：2474092