洪浩尔舒特凹陷变速成图方法研究及应用
|
摘要
在构造复杂的地区,速度横向及纵向变化剧烈,常速构造成图精度低,无法识别一些高速岩体在地震剖面上呈现的隆起假象。洪浩尔舒特凹陷陡坡带部位的h71井区有巨厚层高速砂砾岩堆积,受其形成的隆起假象影响,在该区域导致了勘探失利。根据工区地质概况和地震资料,进行了地震数据品质分析、速度谱数据品质分析、井数据品质分析,建立了针对该区复杂地质情况和有安山岩特殊岩体分布的速度研究流程,并根据该流程绘制了高分辨率的等深度图,还原了地下真实形态,为勘探开发指明了有利方向,降低了勘探风险。
In the complex structural area,the transverse and longitudinal velocities were changed dramatically,it was low precision when the subsurface structure was mapped by constant velocity,it was difficult to identify the illusion of uplift in seismic profile for some high-speed rocks.There was a pile of sand shale in Wellblock h71 which was located in the steep zone of Honghorsut Depression.Due to the illusion of uplift,oil exploration failure was induced in the area.Therefore a set of procedures on the velocity research were set up for the complex structural area where there existed special rocks.The actual underground form is restored,it points out the beneficial direction for oil development and reduce the risk of exploration.
In the complex structural area,the transverse and longitudinal velocities were changed dramatically,it was low precision when the subsurface structure was mapped by constant velocity,it was difficult to identify the illusion of uplift in seismic profile for some high-speed rocks.There was a pile of sand shale in Wellblock h71 which was located in the steep zone of Honghorsut Depression.Due to the illusion of uplift,oil exploration failure was induced in the area.Therefore a set of procedures on the velocity research were set up for the complex structural area where there existed special rocks.The actual underground form is restored,it points out the beneficial direction for oil development and reduce the risk of exploration.
引文
[1]何际平,鲁烈琴,王红旗,等.复杂地区速度场建立与变速构造成图方法研究[J].地球物理学进展,2006,21(3):167～172.
[2]边国柱.剩余层速度平面图的应用[J].石油地球物理勘探,1984,19(3):261～265.
[3]张锐峰,易远元,李先平,等.高精度三维空间速度场技术在龙虎庄地区的应用[J].石油天然气学报(江汉石油学院学报),2011,33(7):63～67.
[4]邓光校.模型层析法变速成图技术在江汉盆地拖谢地区构造解释中的应用[J].工程地球物理学报,2007,4(4):30～32.
[5]易远元,姜建莉,赵殿君.基于模型层析法的地震速度研究[J].江汉石油学院学报,2003,25(1):47～49.
[6]易远元,袁三一.叠前深度偏移技术在李埠地区的应用[J].石油天然气学报(江汉石油学院学报),2006,28(3):66～68.
[2]边国柱.剩余层速度平面图的应用[J].石油地球物理勘探,1984,19(3):261～265.
[3]张锐峰,易远元,李先平,等.高精度三维空间速度场技术在龙虎庄地区的应用[J].石油天然气学报(江汉石油学院学报),2011,33(7):63～67.
[4]邓光校.模型层析法变速成图技术在江汉盆地拖谢地区构造解释中的应用[J].工程地球物理学报,2007,4(4):30～32.
[5]易远元,姜建莉,赵殿君.基于模型层析法的地震速度研究[J].江汉石油学院学报,2003,25(1):47～49.
[6]易远元,袁三一.叠前深度偏移技术在李埠地区的应用[J].石油天然气学报(江汉石油学院学报),2006,28(3):66～68.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心