塔中Ⅲ区碳酸盐岩储层去泥质反演及泥质充填判别
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摘要
塔里木盆地塔中Ⅲ区奥陶系碳酸盐岩储层是近年来勘探重点区域,良里塔格组储层内沉积泥质灰岩条带,以及一间房组洞穴顶部存在的沉积泥质条带,给储层预测带来了较大难度。为提高储层预测精度,分析奥陶系良里塔格组和一间房组储层内泥质展布规律,建立沉积泥质灰岩条带背景纵波阻抗体,完成了无井约束叠后地质统计学反演。研究结果表明,无井反演储层预测纵向发育位置、储层级别和已钻井吻合较好。利用叠前同时反演得到纵横波速比,通过纵波阻抗与纵横波速比交会图分析法,划分了一间房组优质储层、泥质充填储层、基质灰岩分布区间,对洞穴型储层泥质充填、叠前流体预测反演进行探索,确保储层预测的可靠性。
The study area of lianglitage formation reservoir sedimentary argillaceous limestone belt,and a room at the top of the cave group sedimentary shale strip,which brings great difficulty to reservoir prediction.The Lianglitag formation and the Yijianfang Formation reservoir in mud distribution analysis,establish sedimentary argillaceous limestone belt background P-wave impedance,the non well constrained poststack geostatistical inversion.The results show that the predicted vertical development location and reservoir grade are in good agreement with the drilling well.Through the analysis of drilling and rock physics research,using prestack simultaneous inversion obtained by shear wave velocity,shear wave velocity and wave impedance crossplot analysis method,a real group of high quality reservoir,mud filling reservoirs,matrix limestone Distribution Division of cave type reservoir mud filling,pre stack the fluid prediction and inversion are explored,also provide reference for such mud filling in carbonate reservoir prediction.
The study area of lianglitage formation reservoir sedimentary argillaceous limestone belt,and a room at the top of the cave group sedimentary shale strip,which brings great difficulty to reservoir prediction.The Lianglitag formation and the Yijianfang Formation reservoir in mud distribution analysis,establish sedimentary argillaceous limestone belt background P-wave impedance,the non well constrained poststack geostatistical inversion.The results show that the predicted vertical development location and reservoir grade are in good agreement with the drilling well.Through the analysis of drilling and rock physics research,using prestack simultaneous inversion obtained by shear wave velocity,shear wave velocity and wave impedance crossplot analysis method,a real group of high quality reservoir,mud filling reservoirs,matrix limestone Distribution Division of cave type reservoir mud filling,pre stack the fluid prediction and inversion are explored,also provide reference for such mud filling in carbonate reservoir prediction.
引文
[1]雷芬丽,贺振华,文晓涛,等.ZH区碳酸盐岩储层孔隙度预测方法研究[J].石油天然气学报,2010,32(3):236-239.
[2]朱超,刘占国,杨少勇,等.利用相控分频反演预测英西湖相碳酸盐岩储层[J].石油地球物理勘探,2018,53(4):832-841+656-657.
[3]任丽丹,王鹏,刘成芳,等.叠前AVO反演技术在顺南地区碳酸盐岩储层含油气性预测中的应用[J].工程地球物理学报,2018,15(3):292-298.
[4]王保才,刘军,陈黎,等.叠前密度反演技术在顺南地区碳酸盐岩储层预测中的应用[J].工程地球物理学报,2016,13(4):508-512.
[5]张磊,安海亭,但光箭,等.地质统计学反演在轮古油田碳酸盐岩储层预测中的应用[J].石油地质与工程,2016,30(2):1-4+147.
[6]赵铭海.常用叠后波阻抗反演技术评析[J].油气地质与采收率,2004,11(1):36-38.
[7]刘百红,李建华.测井和地震资料宽带约束反演的应用[J].石油物探,2004,43(1):76-78.
[8]马劲风,王学军,贾春环,等.波阻抗约束反演中的约束方法研究[J].石油物探,2000,39(2):52-63.
[9]张永刚.地震波阻抗反演技术的现状和发展[J].石油物探,2002,41(4):385-390.
[2]朱超,刘占国,杨少勇,等.利用相控分频反演预测英西湖相碳酸盐岩储层[J].石油地球物理勘探,2018,53(4):832-841+656-657.
[3]任丽丹,王鹏,刘成芳,等.叠前AVO反演技术在顺南地区碳酸盐岩储层含油气性预测中的应用[J].工程地球物理学报,2018,15(3):292-298.
[4]王保才,刘军,陈黎,等.叠前密度反演技术在顺南地区碳酸盐岩储层预测中的应用[J].工程地球物理学报,2016,13(4):508-512.
[5]张磊,安海亭,但光箭,等.地质统计学反演在轮古油田碳酸盐岩储层预测中的应用[J].石油地质与工程,2016,30(2):1-4+147.
[6]赵铭海.常用叠后波阻抗反演技术评析[J].油气地质与采收率,2004,11(1):36-38.
[7]刘百红,李建华.测井和地震资料宽带约束反演的应用[J].石油物探,2004,43(1):76-78.
[8]马劲风,王学军,贾春环,等.波阻抗约束反演中的约束方法研究[J].石油物探,2000,39(2):52-63.
[9]张永刚.地震波阻抗反演技术的现状和发展[J].石油物探,2002,41(4):385-390.