复杂油气藏
複雜油氣藏
복잡유기장
COMPLEX HYDROCARBON RESERVOIRS
2011年
2期
5-8,22
,共5页
松辽盆地北部%齐家—古龙地区%上生下储%成藏主控因素
鬆遼盆地北部%齊傢—古龍地區%上生下儲%成藏主控因素
송료분지북부%제가—고룡지구%상생하저%성장주공인소
northern Songliao Basin%Qijia-Gulong area%upper source rock and lower reservoir%main controlling factors of oil accumulation
扶余油层的油气来自于其上覆的青一段(K2qn1)泥岩,属于老储层新油藏。扶余油层成藏的主要控制因素在于:敖古拉断裂对古龙凹陷生成的油气向西运移具有封堵作用;断层是油气向下运移的有利通道;青一段泥岩异常压力是油气向下排烃成藏的主要动力;储层物性控制了油藏的充满程度。
扶餘油層的油氣來自于其上覆的青一段(K2qn1)泥巖,屬于老儲層新油藏。扶餘油層成藏的主要控製因素在于:敖古拉斷裂對古龍凹陷生成的油氣嚮西運移具有封堵作用;斷層是油氣嚮下運移的有利通道;青一段泥巖異常壓力是油氣嚮下排烴成藏的主要動力;儲層物性控製瞭油藏的充滿程度。
부여유층적유기래자우기상복적청일단(K2qn1)니암,속우로저층신유장。부여유층성장적주요공제인소재우:오고랍단렬대고룡요함생성적유기향서운이구유봉도작용;단층시유기향하운이적유리통도;청일단니암이상압력시유기향하배경성장적주요동력;저층물성공제료유장적충만정도。
It is an important reserve replacement zone of Daqing Oilfield,in which there are mainly lithologic and fault-lithologic reservoirs.The oil and gas of Fuyu oil layer came from the upper first section of Qinshankou (K2qn1)mudstone.The main controlling factors of oil accumulation are following as:hydrocarbon westward migration in Gulong sag was hindered by Aogula fault zone,faults were beneficial passages for hydrocarbon migrating downward,the main power of hydrocarbon migration downward was the abnormal pressure of K2qn1 mudstone,and the full extent of reservoir was controlled by porosity and permeability of reservoir.