基于溶洞体照明分析的采集参数论证
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摘要
奥陶系碳酸盐岩缝洞型储层是塔河油田的主要储层类型。提高缝洞体"串珠"成像精度,精细刻画其内部特征是该地区地震勘探重点攻关难题之一,结合勘探成本,开展针对缝洞目标体的观测系统设计非常必要。笔者通过建立工区三维溶洞储层地质模型,采用基于观测系统的高斯射线束双向照明技术获得溶洞目标体偏移照明能量。保证观测系统覆盖次数相同条件下,定量论证不同采集参数(重点分析面元、方位角)对溶洞体的照明效果,据此选定最佳参数,为野外观测系统设计提供理论指导。
The Ordovician Carbonate fracture-cave reservoir is the major reservoir type in Tahe Oilfield. Improving the"string"imaging accuracy and exquisite depicting the internal characteristic of the fracture-cave bodies are one of the key research problems about seismic exploration in this region,combined with exploration cost,carring out seismic geometry design about the fracture-cave target bodies is very necessary. Through building the three-dimensional cave reservoir geological model about work area,to obtain the migration image illumination energy with these cave reservoir target bodies by using Guassian beam bi-directional illumination technology based on seismic geometry. Under the condition of the same fold about seismic geometry,quantitatively demonstrates different illumination effect of acquisition parameters( putting point on the bin and azimuth) on cave bodies,based on the results to choose the best parameters,providing theoretical guidance for field seismic geometry design.
The Ordovician Carbonate fracture-cave reservoir is the major reservoir type in Tahe Oilfield. Improving the"string"imaging accuracy and exquisite depicting the internal characteristic of the fracture-cave bodies are one of the key research problems about seismic exploration in this region,combined with exploration cost,carring out seismic geometry design about the fracture-cave target bodies is very necessary. Through building the three-dimensional cave reservoir geological model about work area,to obtain the migration image illumination energy with these cave reservoir target bodies by using Guassian beam bi-directional illumination technology based on seismic geometry. Under the condition of the same fold about seismic geometry,quantitatively demonstrates different illumination effect of acquisition parameters( putting point on the bin and azimuth) on cave bodies,based on the results to choose the best parameters,providing theoretical guidance for field seismic geometry design.
引文
[1]李宗杰,王勤聪.塔河油田奥陶系古岩溶洞穴识别及预测[J].新疆地质,2003,21(2):181-184.
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[13]赵群,曲寿利,薛诗桂,等.碳酸盐岩溶洞物理模型地震响应特征研究[J].石油物探,2010,49(4):351-358.
[14]刘群,李宗杰,禹金营,等.高精度三维地震技术应用效果分析[J].石油物探,2010,49(6):573-583.
[15]刘依谋,梁向豪,印兴耀,等.面向碳酸盐岩缝洞型储层的高密度全方位三维地震采集技术及应用效果[J].石油物探,2013,52(4):372-380.
[16]徐颖.塔河油田高精度三维地震采集参数优化研究[J].石油物探,2014,53(1):68-75.
[17]梁向豪,朱运红,刘依谋,等.三维地质模型辅助地震采集观测系统设计及应用[J].非常规油气,2015,2(1):15-20.
[18]朱金平,董良国.地震波双向照明的概念及计算方法[J].地球物理学报,2011,54(11):2933-2941.
[19]邓飞,刘超颖,赵波,等.高斯束正演与偏移[J].石油地球物理勘探,2009,44(3):265-269.
[20]殷厚成,邓飞.三维高斯射线束观测系统照明及优化方法研究[J].石油物探,2015,54(4):376-381.
[2]徐微,陈冬梅,赵文光,等.塔河油田奥陶系碳酸盐岩油藏溶洞发育规律[J].海相油气地质,2011,16(2):34-41.
[3]Schneider W A,Winbow G A.Efficient and accurate modeling of 3-D seismic illumination[J].Expanded Abstracts of 69thSEG Meeting,1999:633-636.
[4]Laurain R,Gelius L J,Winje V,et al.A review of 3D illumination studies[J].Journal of Seismic Exploration,2004,(13):17-37.
[5]尹成,吕公河.基于地球物理目标参数的三维观测系统优化设计[J].石油物探,2006,45(1):74-78.
[6]赵殿栋,郭建,王咸彬,等.基于模型面向目标的观测系统优化设计技术[J].中国西部油气地质,2006,2(2):119-122.
[7]蒋韬,符力耘,碗学检,等.基于波动方程的目标导向观测系统设计方法研究[J].地球物理学进展,2008,23(2):359-367.
[8]李万万.基于波动方程正演的地震观测系统设计[J].石油地球物理勘探,2008,43(2):134-141.
[9]李佩,陈生昌,常鉴,等.基于波动理论的地震观测系统设计[J].浙江大学学报:工学版,2010,44(1):203-207.
[10]张建微,王海波,刘大鸣,等.二维波动方程和三维照明分析技术在潜山观测系统设计中的应用[J].长江大学学报:自然科学版,2011,8(5):36-39.
[11]徐雷良.胜利探区复杂地质构造的地震波照明与观测系统优化[J].物探与化探,2012,36(5):788-792.
[12]田伟,常锁亮,陈强.观测系统类型及参数对采空区探测的影响[J].物探与化探,2012,36(s):70-77.
[13]赵群,曲寿利,薛诗桂,等.碳酸盐岩溶洞物理模型地震响应特征研究[J].石油物探,2010,49(4):351-358.
[14]刘群,李宗杰,禹金营,等.高精度三维地震技术应用效果分析[J].石油物探,2010,49(6):573-583.
[15]刘依谋,梁向豪,印兴耀,等.面向碳酸盐岩缝洞型储层的高密度全方位三维地震采集技术及应用效果[J].石油物探,2013,52(4):372-380.
[16]徐颖.塔河油田高精度三维地震采集参数优化研究[J].石油物探,2014,53(1):68-75.
[17]梁向豪,朱运红,刘依谋,等.三维地质模型辅助地震采集观测系统设计及应用[J].非常规油气,2015,2(1):15-20.
[18]朱金平,董良国.地震波双向照明的概念及计算方法[J].地球物理学报,2011,54(11):2933-2941.
[19]邓飞,刘超颖,赵波,等.高斯束正演与偏移[J].石油地球物理勘探,2009,44(3):265-269.
[20]殷厚成,邓飞.三维高斯射线束观测系统照明及优化方法研究[J].石油物探,2015,54(4):376-381.