THE EFFECT OF CROSS-EQUALIZATION PROCESSING OF TIME-LAPSE SEISMIC MONITORING DATA FOR THERMAL RECOVERY OF HEAVY OIL IN CONTINENTAL THIN-INTERBEDDING RESERVOIR
YUN Mei-hou1, DING Wei1, WANG Kai-yan2, YANG Xiao-yan1, ZHU Wei-qiang1
1. Geophysical Exploration and Development Corporation, Shengli Petroleum Administrative Bureau, Dongying 257100, China;
2. Daqing Petroleum Institute, Daqing 163000, China
Till now, time-lapse seismic monitoring of continental thin-interbedding reservoir has not made a remarkable breakthrough, and hence the strengthening of the study and application of the time-lapse seismic method as well as the cross-equalization processing technique is of great significance. As a most effective method for improving the repeatability of time-lapse seismic data, the cross-equalization processing technique has been widely used with excellent results achieved. Through the cross-equalization processing of time-lapse seismic monitoring data obtained in the development of continental heavy oil thin-interbedding reservoir with the use of thermal recovery, it is shown that the cross-equalization processing is helpful to recognizing time-lapse seismic anomaly and determining the position of thermal front. Nevertheless, when the repeatability of original seismic data is very bad, such a processing can only improve the repeatability of time-lapse seismic data, but with no good seismic anomaly detected. The key to the successful performance of time-lapse seismic monitoring for the continental thin-interbedding reservoir is the enhancement of the repeatability of seismic wavelets and seismic data. The amplitude attribute seems to be one of the major criteria for the thinner reservoir.
云美厚, 丁伟, 王开燕, 杨晓燕, 朱伟强. 陆相薄互层稠油油藏热采时移地震监测互均衡处理效果分析[J]. 物探与化探, 2006, 30(5): 435-440,445.
YUN Mei-hou, DING Wei, WANG Kai-yan, YANG Xiao-yan, ZHU Wei-qiang. THE EFFECT OF CROSS-EQUALIZATION PROCESSING OF TIME-LAPSE SEISMIC MONITORING DATA FOR THERMAL RECOVERY OF HEAVY OIL IN CONTINENTAL THIN-INTERBEDDING RESERVOIR. Geophysical and Geochemical Exploration, 2006, 30(5): 435-440,445.
[1] Lumley D E.Time-lapse seismic reservoir monitoring[J].Geophysics,2001,66(1):50.
[2] 云美厚.油藏注水强化开采地震监测技术的研究与应用[D].北京:中国地质大学,2001.
[3] 云美厚,张国才,付雷,等.重复性噪声对实施4D地震监测的影响[J].勘探地球物理进展,2003,26(1):13.
[4] 陈小宏.四维地震数据归一化方法及实例处理[J].石油学报,1999,20(6):22.
[5] Rickett J E,Lumley D E.A cross-equalization processing flow for off-the-shelf 4D seismic data[A] .SEG 68th Annual Meeting,Technical Program Expand Abstracts[C].Tulsa:SEG,1998:16.
[6] 李蓉,胡天跃.时移地震资料处理中的互均衡技术[J].石油地球物理勘探,2004,39(4):424.
[7] Ross C P,Cunningham G B.Inside the cross-equalization black box[J].The leading Edge,1996,15(11):1233.
[8] Rickett J E,Lumley D E.Corss-equalization data processing for time-lapse seismic reservoir monitoring:A case study from the Gulf of Mexico[J].Geophysics,2001,66(4):1015.
[9] 刘慧卿,范玉平,赵东伟,等.热力采油技术原理与方法[M].东营:石油大学出版社,2000.
[10] Waite M W,Rusdinadar S.Seismic monitoring of the Duri Steamflood:Application to reservoir management[J].The leading edge,1997,16(9):1275.
[11] 王新红,李梦庚,李增印,等.稠油岩心纵波速度变化规律的实验研究[J].石油地球物理勘探,1994,29(5):642.
[12] Wang Z,Nur A.Wave velocities in hydrocarbon-saturated rocks:Experimental results[J].Geophysics,1990,55(6):723.