本文選題：斷裂活動性 + 斷裂封閉性　； 參考：《地球科學(xué)》2017年10期

【摘要】：長嶺斷陷龍鳳山地區(qū)具有"下生上儲、他源成藏"特征,明確斷裂與油氣運(yùn)聚的關(guān)系對指導(dǎo)其油氣勘探具有重要意義.在分析斷裂靜態(tài)特征的基礎(chǔ)上,分別定量評價斷裂的活動性、封閉性以及斷-蓋配置關(guān)系,并提出了評價斷-蓋配置有效性的"SGR下限"法(SGR全稱是Shale Gouge Ratio),結(jié)合油氣藏靜態(tài)分布特征,探討了斷裂對油氣差異聚集的控制作用.研究結(jié)果表明,第1期油氣成藏早中期,斷裂可大規(guī)模輸導(dǎo)油氣;第1期晚期及第2期油氣成藏時,主干反向斷裂形成的封閉"走廊"空間為油氣提供聚集場所.應(yīng)用"SGR下限"法,認(rèn)為營Ⅲ砂組斷-蓋配置關(guān)系較好,為油氣提供良好的保存條件.斷裂控?zé)N作用體現(xiàn)在3個方面,斷裂的活動性控制了油氣不同時期的垂向運(yùn)移規(guī)模,斷裂的封閉差異性控制了油氣富集程度,斷-蓋配置關(guān)系控制了油氣的富集層系.
[Abstract]:The Longfengshan area in Changling fault depression has the characteristics of "lower generation, upper reservoir, other source and reservoir formation". It is of great significance to clarify the relationship between fault and hydrocarbon migration and accumulation to guide its oil and gas exploration. Based on the analysis of the static characteristics of the fault, the activity, sealing and the relationship between the fault and the cover of the fault are quantitatively evaluated. The "SGR lower bound" method (SGR) is proposed to evaluate the effectiveness of fault-cap configuration (SGR is Shale Gouge ratio). Combined with the static distribution characteristics of oil and gas reservoirs, the controlling effect of faults on oil and gas differential accumulation is discussed. The results show that the faults can transport oil and gas on a large scale in the early and middle stage of hydrocarbon reservoir formation in the first stage, and that the closed "corridor" space formed by the main reverse faults provides a place for oil and gas accumulation during the late and second oil and gas accumulation periods of the first and second periods. By using the "SGR lower limit" method, it is considered that the relationship between fault and cap configuration of Ying 鈪，

本文編號：2090736