临南洼陷沙三段浊积砂体地震特征与精细描述
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摘要
临南洼陷是一个多期多物源充填的洼陷,环绕洼陷沙三段发育多个三角洲沉积体系,勘探潜力较大。近年来,临南洼陷沙三段隐蔽性油藏勘探不断取得新进展,但是随着勘探程度的不断提高,勘探难度越来越大,常规浊积砂体识别描述方法已经很难满足生产需要。针对勘探中存在的难点,通过灰质泥岩剔除技术、浊积砂体地震反射特征研究以及频谱分解技术的应用,对临南洼陷浊积砂体进行了精细识别和描述,取得了较好的效果,指导了该区的勘探部署。
Linnan Sag was a multi-phase and multi-source sag,around the depression there developed several delta sedimentary systems with considerable exploration potential.In recent years,progress has been made in elusive reservoir exploration in the third member of Shahejie Formation in Linna Sag.However,the challenge of exploration was raised with the progress of exploration and the regular method of turbidite sand body identification and description could not meet the production needs.The fine identification and description of turbidite sand body were illustrated in Linnan Sag by using the rejection technology of calcareous mudstone,researching on the seismic reflection characteristics of sand body,and applying the frequency spectrum division technology,in view of the challenge of exploration.The application of fine identification and description of turbidite sand body in Linnan Sag result in good effect.Meanwhile,it can provide guidance for the further exploration deployment in the area.
Linnan Sag was a multi-phase and multi-source sag,around the depression there developed several delta sedimentary systems with considerable exploration potential.In recent years,progress has been made in elusive reservoir exploration in the third member of Shahejie Formation in Linna Sag.However,the challenge of exploration was raised with the progress of exploration and the regular method of turbidite sand body identification and description could not meet the production needs.The fine identification and description of turbidite sand body were illustrated in Linnan Sag by using the rejection technology of calcareous mudstone,researching on the seismic reflection characteristics of sand body,and applying the frequency spectrum division technology,in view of the challenge of exploration.The application of fine identification and description of turbidite sand body in Linnan Sag result in good effect.Meanwhile,it can provide guidance for the further exploration deployment in the area.
引文
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